Helen Leask

Several new studies in lung cancer have opened their doors recently. Is one of your patients eligible to participate?

Resected stage II, IIIA, or IIIB with nodal involvement non–small cell lung cancer (NSCLC). Adult patients with this type of cancer can join a randomized, controlled, phase 3 study assessing whether an investigational drug called V940 added to pembrolizumab (Keytruda) delays cancer recurrence better than pembrolizumab alone.

V940 is an individualized neoantigen therapy designed to generate T-cell antitumor responses targeted to a patient’s specific mutation profile.

V940 plus pembrolizumab showed a trend toward longer recurrence-free survival vs pembrolizumab alone in a recent phase 2 study in melanoma (hazard ratio, 0.561; P = .053).

In the current trial, one group of participants will receive intramuscular injections of V940 every 3 weeks plus intravenous (IV) pembrolizumab every 6 weeks for up to approximately 1 year or until disease recurrence or unacceptable toxicity, whichever happens first. The other people in the trial will be on the same schedule, with a placebo replacing V940.

Centers in Florida, Georgia, Kentucky, Montana, New Jersey, New York, North Dakota, and six other countries started recruiting for the trial’s 868 participants in December 2023. Disease-free survival is the primary endpoint. Overall survival over approximately 12 years and quality of life (QoL) are secondary endpoints. More details at clinicaltrials.gov.

Metastatic NSCLC with a programmed cell death ligand 1 (PD-L1)–tumor proportion score of > 50%. Adults in this clinical situation are eligible for a randomized, open-label, phase 3 trial to determine whether an experimental antibody-drug conjugate called MK-2870 added to standard pembrolizumab prolongs survival.

MK-2870 delivers a cytotoxin to cancer cells by binding to trophoblast cell-surface antigen 2, known to promote tumor cell growth and metastasis. For up to 2 years, half of participants will receive MK-2870 by IV every 2 weeks plus IV pembrolizumab every 6 weeks. The other group will receive only pembrolizumab.

In December 2023, study sites in Georgia, Minnesota, Mississippi, Nevada, Oregon, Australia, Denmark, Taiwan, and Turkey started seeking the trial’s 614 participants. Overall survival over approximately 4 years is the primary endpoint; QoL is a secondary endpoint. More details at clinicaltrials.gov.

Untreated locally advanced or metastatic NSCLC with KRAS G12C mutations. Individuals with this type of lung cancer may be interested in a randomized, controlled, phase 3 study examining whether an experimental oral KRAS G12C inhibitor called LY3537982 boosts the effectiveness of standard treatment and patients can tolerate the combination. Currently approved KRAS G12C inhibitors sotorasib (Lumakras, Lumykras) and adagrasib (Krazati) are indicated for second-line treatment; this trial may lead to a first-line approval for newcomer LY3537982.

The trial has three parts: dose optimization, safety, and efficacy. During dose optimization, each participant will take one of two oral doses of LY3537982 and receive IV pembrolizumab every 3 weeks. In the safety phase, all participants will receive oral LY3537982 at the chosen dose plus standard therapy of 3-times-weekly IV pembrolizumab, pemetrexed, and a platinum therapy (cisplatin or carboplatin). In the experimental phase, for up to about 1 year, participants will receive one of these four options: Pembrolizumab plus LY3537982, pembrolizumab plus a placebo, standard therapy plus LY3537982, or standard therapy plus a placebo.

The study, which is planning to recruit 1016 participants, opened across 16 US states and 12 countries worldwide in December 2023. Sites in 11 more US states, the District of Columbia, Brazil, Canada, China, India, and 11 more European countries are gearing up. Adverse events and progression-free survival are the primary endpoints. Overall survival over approximately 3 years and QoL are secondary endpoints. More details at clinicaltrials.gov.

Unresectable, untreated locally advanced or metastatic non-squamous NSCLC with human epidermal growth factor receptor 2 (HER2) mutations. People with this diagnosis who have HER2 mutations instead of KRAS G12C mutations can participate in a phase 3 study comparing an investigational oral first-line treatment with standard IV therapy. The drug in this study, zongertinib, is a HER2 tyrosine kinase inhibitor.

For up to approximately 4 years, one group of participants will take oral zongertinib only, and the other individuals will receive IV pembrolizumab, pemetrexed, and a platinum agent (cisplatin or carboplatin). Study sites in California, Missouri, South Carolina, Australia, China, Japan, South Korea, and Singapore opened in January ready to welcome 270 participants. Progression-free survival is the primary outcome. Overall survival over 53 months and QoL are secondary endpoints. More details at clinicaltrials.gov.

Completely resected stage IIB, IIIA, or select IIIB, PD-L1–positive NSCLC. Adults with this type of lung cancer who have received adjuvant platinum-based chemotherapy may be eligible for a randomized, controlled, phase 3 study to assess whether two immune checkpoint inhibitors are better than one at delaying cancer recurrence. In this trial, tiragolumab will be added to the approved PD-L1 inhibitor atezolizumab (Tecentriq).

A recent study, however, found that tiragolumab did not confer an additional benefit when added to atezolizumab, carboplatin, and etoposide in untreated extensive-stage small cell lung cancer.

In the current trial, one group of participants will receive IV atezolizumab and tiragolumab, while the other people will receive a placebo instead of tiragolumab. Centers in California, Georgia, Illinois, New Mexico, Australia, China, South Korea, and Taiwan started recruiting for the trial’s 1150 participants in March 2024. Disease-free survival is the primary endpoint. Overall survival over approximately 15 years and QoL are secondary outcomes. More details at clinicaltrials.gov.

Previously treated metastatic or non-operable non-squamous NSCLC. Adults in this position who have received no more than one platinum-based chemotherapy and one anti–PD-L1 drug are sought for a randomized, open-label, phase 3 trial comparing second-line standard docetaxel with experimental antibody-drug conjugate sigvotatug vedotin. Patients who have tumors with certain treatable genomic alterations must have received at least one drug targeted to that alteration, as well as a platinum-based agent.

Approximately half the participants will receive sigvotatug vedotin by IV every 2 weeks, and the other half will receive IV docetaxel every 3 weeks. The study opened in March across 13 US states, France, Hungary, Poland, and Spain seeking 600 people eligible to participate. The primary outcomes are overall survival over approximately 5 years and objective response rate. QoL is a secondary outcome. More details at clinicaltrials.gov.All trial information is from the National Institutes of Health US National Library of Medicine (online at clinicaltrials.gov).

A version of this article appeared on Medscape.com .

Several new studies in lung cancer have opened their doors recently. Is one of your patients eligible to participate?

Resected stage II, IIIA, or IIIB with nodal involvement non–small cell lung cancer (NSCLC). Adult patients with this type of cancer can join a randomized, controlled, phase 3 study assessing whether an investigational drug called V940 added to pembrolizumab (Keytruda) delays cancer recurrence better than pembrolizumab alone.

V940 is an individualized neoantigen therapy designed to generate T-cell antitumor responses targeted to a patient’s specific mutation profile.

V940 plus pembrolizumab showed a trend toward longer recurrence-free survival vs pembrolizumab alone in a recent phase 2 study in melanoma (hazard ratio, 0.561; P = .053).

In the current trial, one group of participants will receive intramuscular injections of V940 every 3 weeks plus intravenous (IV) pembrolizumab every 6 weeks for up to approximately 1 year or until disease recurrence or unacceptable toxicity, whichever happens first. The other people in the trial will be on the same schedule, with a placebo replacing V940.

Centers in Florida, Georgia, Kentucky, Montana, New Jersey, New York, North Dakota, and six other countries started recruiting for the trial’s 868 participants in December 2023. Disease-free survival is the primary endpoint. Overall survival over approximately 12 years and quality of life (QoL) are secondary endpoints. More details at clinicaltrials.gov.

Metastatic NSCLC with a programmed cell death ligand 1 (PD-L1)–tumor proportion score of > 50%. Adults in this clinical situation are eligible for a randomized, open-label, phase 3 trial to determine whether an experimental antibody-drug conjugate called MK-2870 added to standard pembrolizumab prolongs survival.

MK-2870 delivers a cytotoxin to cancer cells by binding to trophoblast cell-surface antigen 2, known to promote tumor cell growth and metastasis. For up to 2 years, half of participants will receive MK-2870 by IV every 2 weeks plus IV pembrolizumab every 6 weeks. The other group will receive only pembrolizumab.

In December 2023, study sites in Georgia, Minnesota, Mississippi, Nevada, Oregon, Australia, Denmark, Taiwan, and Turkey started seeking the trial’s 614 participants. Overall survival over approximately 4 years is the primary endpoint; QoL is a secondary endpoint. More details at clinicaltrials.gov.

Untreated locally advanced or metastatic NSCLC with KRAS G12C mutations. Individuals with this type of lung cancer may be interested in a randomized, controlled, phase 3 study examining whether an experimental oral KRAS G12C inhibitor called LY3537982 boosts the effectiveness of standard treatment and patients can tolerate the combination. Currently approved KRAS G12C inhibitors sotorasib (Lumakras, Lumykras) and adagrasib (Krazati) are indicated for second-line treatment; this trial may lead to a first-line approval for newcomer LY3537982.

The trial has three parts: dose optimization, safety, and efficacy. During dose optimization, each participant will take one of two oral doses of LY3537982 and receive IV pembrolizumab every 3 weeks. In the safety phase, all participants will receive oral LY3537982 at the chosen dose plus standard therapy of 3-times-weekly IV pembrolizumab, pemetrexed, and a platinum therapy (cisplatin or carboplatin). In the experimental phase, for up to about 1 year, participants will receive one of these four options: Pembrolizumab plus LY3537982, pembrolizumab plus a placebo, standard therapy plus LY3537982, or standard therapy plus a placebo.

The study, which is planning to recruit 1016 participants, opened across 16 US states and 12 countries worldwide in December 2023. Sites in 11 more US states, the District of Columbia, Brazil, Canada, China, India, and 11 more European countries are gearing up. Adverse events and progression-free survival are the primary endpoints. Overall survival over approximately 3 years and QoL are secondary endpoints. More details at clinicaltrials.gov.

Unresectable, untreated locally advanced or metastatic non-squamous NSCLC with human epidermal growth factor receptor 2 (HER2) mutations. People with this diagnosis who have HER2 mutations instead of KRAS G12C mutations can participate in a phase 3 study comparing an investigational oral first-line treatment with standard IV therapy. The drug in this study, zongertinib, is a HER2 tyrosine kinase inhibitor.

For up to approximately 4 years, one group of participants will take oral zongertinib only, and the other individuals will receive IV pembrolizumab, pemetrexed, and a platinum agent (cisplatin or carboplatin). Study sites in California, Missouri, South Carolina, Australia, China, Japan, South Korea, and Singapore opened in January ready to welcome 270 participants. Progression-free survival is the primary outcome. Overall survival over 53 months and QoL are secondary endpoints. More details at clinicaltrials.gov.

Completely resected stage IIB, IIIA, or select IIIB, PD-L1–positive NSCLC. Adults with this type of lung cancer who have received adjuvant platinum-based chemotherapy may be eligible for a randomized, controlled, phase 3 study to assess whether two immune checkpoint inhibitors are better than one at delaying cancer recurrence. In this trial, tiragolumab will be added to the approved PD-L1 inhibitor atezolizumab (Tecentriq).

A recent study, however, found that tiragolumab did not confer an additional benefit when added to atezolizumab, carboplatin, and etoposide in untreated extensive-stage small cell lung cancer.

In the current trial, one group of participants will receive IV atezolizumab and tiragolumab, while the other people will receive a placebo instead of tiragolumab. Centers in California, Georgia, Illinois, New Mexico, Australia, China, South Korea, and Taiwan started recruiting for the trial’s 1150 participants in March 2024. Disease-free survival is the primary endpoint. Overall survival over approximately 15 years and QoL are secondary outcomes. More details at clinicaltrials.gov.

Previously treated metastatic or non-operable non-squamous NSCLC. Adults in this position who have received no more than one platinum-based chemotherapy and one anti–PD-L1 drug are sought for a randomized, open-label, phase 3 trial comparing second-line standard docetaxel with experimental antibody-drug conjugate sigvotatug vedotin. Patients who have tumors with certain treatable genomic alterations must have received at least one drug targeted to that alteration, as well as a platinum-based agent.

Approximately half the participants will receive sigvotatug vedotin by IV every 2 weeks, and the other half will receive IV docetaxel every 3 weeks. The study opened in March across 13 US states, France, Hungary, Poland, and Spain seeking 600 people eligible to participate. The primary outcomes are overall survival over approximately 5 years and objective response rate. QoL is a secondary outcome. More details at clinicaltrials.gov.All trial information is from the National Institutes of Health US National Library of Medicine (online at clinicaltrials.gov).

A version of this article appeared on Medscape.com .

Several new studies in lung cancer have opened their doors recently. Is one of your patients eligible to participate?

Resected stage II, IIIA, or IIIB with nodal involvement non–small cell lung cancer (NSCLC). Adult patients with this type of cancer can join a randomized, controlled, phase 3 study assessing whether an investigational drug called V940 added to pembrolizumab (Keytruda) delays cancer recurrence better than pembrolizumab alone.

V940 is an individualized neoantigen therapy designed to generate T-cell antitumor responses targeted to a patient’s specific mutation profile.

V940 plus pembrolizumab showed a trend toward longer recurrence-free survival vs pembrolizumab alone in a recent phase 2 study in melanoma (hazard ratio, 0.561; P = .053).

In the current trial, one group of participants will receive intramuscular injections of V940 every 3 weeks plus intravenous (IV) pembrolizumab every 6 weeks for up to approximately 1 year or until disease recurrence or unacceptable toxicity, whichever happens first. The other people in the trial will be on the same schedule, with a placebo replacing V940.

Centers in Florida, Georgia, Kentucky, Montana, New Jersey, New York, North Dakota, and six other countries started recruiting for the trial’s 868 participants in December 2023. Disease-free survival is the primary endpoint. Overall survival over approximately 12 years and quality of life (QoL) are secondary endpoints. More details at clinicaltrials.gov.

Metastatic NSCLC with a programmed cell death ligand 1 (PD-L1)–tumor proportion score of > 50%. Adults in this clinical situation are eligible for a randomized, open-label, phase 3 trial to determine whether an experimental antibody-drug conjugate called MK-2870 added to standard pembrolizumab prolongs survival.

MK-2870 delivers a cytotoxin to cancer cells by binding to trophoblast cell-surface antigen 2, known to promote tumor cell growth and metastasis. For up to 2 years, half of participants will receive MK-2870 by IV every 2 weeks plus IV pembrolizumab every 6 weeks. The other group will receive only pembrolizumab.

In December 2023, study sites in Georgia, Minnesota, Mississippi, Nevada, Oregon, Australia, Denmark, Taiwan, and Turkey started seeking the trial’s 614 participants. Overall survival over approximately 4 years is the primary endpoint; QoL is a secondary endpoint. More details at clinicaltrials.gov.

Untreated locally advanced or metastatic NSCLC with KRAS G12C mutations. Individuals with this type of lung cancer may be interested in a randomized, controlled, phase 3 study examining whether an experimental oral KRAS G12C inhibitor called LY3537982 boosts the effectiveness of standard treatment and patients can tolerate the combination. Currently approved KRAS G12C inhibitors sotorasib (Lumakras, Lumykras) and adagrasib (Krazati) are indicated for second-line treatment; this trial may lead to a first-line approval for newcomer LY3537982.

The trial has three parts: dose optimization, safety, and efficacy. During dose optimization, each participant will take one of two oral doses of LY3537982 and receive IV pembrolizumab every 3 weeks. In the safety phase, all participants will receive oral LY3537982 at the chosen dose plus standard therapy of 3-times-weekly IV pembrolizumab, pemetrexed, and a platinum therapy (cisplatin or carboplatin). In the experimental phase, for up to about 1 year, participants will receive one of these four options: Pembrolizumab plus LY3537982, pembrolizumab plus a placebo, standard therapy plus LY3537982, or standard therapy plus a placebo.

The study, which is planning to recruit 1016 participants, opened across 16 US states and 12 countries worldwide in December 2023. Sites in 11 more US states, the District of Columbia, Brazil, Canada, China, India, and 11 more European countries are gearing up. Adverse events and progression-free survival are the primary endpoints. Overall survival over approximately 3 years and QoL are secondary endpoints. More details at clinicaltrials.gov.

Unresectable, untreated locally advanced or metastatic non-squamous NSCLC with human epidermal growth factor receptor 2 (HER2) mutations. People with this diagnosis who have HER2 mutations instead of KRAS G12C mutations can participate in a phase 3 study comparing an investigational oral first-line treatment with standard IV therapy. The drug in this study, zongertinib, is a HER2 tyrosine kinase inhibitor.

For up to approximately 4 years, one group of participants will take oral zongertinib only, and the other individuals will receive IV pembrolizumab, pemetrexed, and a platinum agent (cisplatin or carboplatin). Study sites in California, Missouri, South Carolina, Australia, China, Japan, South Korea, and Singapore opened in January ready to welcome 270 participants. Progression-free survival is the primary outcome. Overall survival over 53 months and QoL are secondary endpoints. More details at clinicaltrials.gov.

Completely resected stage IIB, IIIA, or select IIIB, PD-L1–positive NSCLC. Adults with this type of lung cancer who have received adjuvant platinum-based chemotherapy may be eligible for a randomized, controlled, phase 3 study to assess whether two immune checkpoint inhibitors are better than one at delaying cancer recurrence. In this trial, tiragolumab will be added to the approved PD-L1 inhibitor atezolizumab (Tecentriq).

A recent study, however, found that tiragolumab did not confer an additional benefit when added to atezolizumab, carboplatin, and etoposide in untreated extensive-stage small cell lung cancer.

In the current trial, one group of participants will receive IV atezolizumab and tiragolumab, while the other people will receive a placebo instead of tiragolumab. Centers in California, Georgia, Illinois, New Mexico, Australia, China, South Korea, and Taiwan started recruiting for the trial’s 1150 participants in March 2024. Disease-free survival is the primary endpoint. Overall survival over approximately 15 years and QoL are secondary outcomes. More details at clinicaltrials.gov.

Previously treated metastatic or non-operable non-squamous NSCLC. Adults in this position who have received no more than one platinum-based chemotherapy and one anti–PD-L1 drug are sought for a randomized, open-label, phase 3 trial comparing second-line standard docetaxel with experimental antibody-drug conjugate sigvotatug vedotin. Patients who have tumors with certain treatable genomic alterations must have received at least one drug targeted to that alteration, as well as a platinum-based agent.

Approximately half the participants will receive sigvotatug vedotin by IV every 2 weeks, and the other half will receive IV docetaxel every 3 weeks. The study opened in March across 13 US states, France, Hungary, Poland, and Spain seeking 600 people eligible to participate. The primary outcomes are overall survival over approximately 5 years and objective response rate. QoL is a secondary outcome. More details at clinicaltrials.gov.All trial information is from the National Institutes of Health US National Library of Medicine (online at clinicaltrials.gov).

A version of this article appeared on Medscape.com .

Several new clinical trials in prostate cancer have started recruiting in recent months. Maybe one of your patients could benefit from enrolling?

Metastatic castration-sensitive prostate cancer 

Adults with this diagnosis may be interested in a randomized, double-blind, phase 3 study examining whether an experimental poly (ADP-ribose) polymerase (PARP) inhibitor called saruparib can further delay disease progression when added to a next-generation hormonal agent such as abiraterone (Zytiga), darolutamide (Nubeqa), or enzalutamide (Xtandi).

One group of participants will take daily oral doses of saruparib plus physician’s choice of a next-generation hormonal agent until disease progression or another reason for stopping therapy. The other group will add a placebo to a next-generation hormonal agent.

Sites in Rhode Island, Arkansas, California, Michigan, Australia, Canada, Japan, Taiwan, Thailand, the United Kingdom, and South Korea began seeking the trial’s 1800 participants in November 2023. Research centers in 31 other US states and 18 other countries are gearing up. The primary endpoint is radiographic progression-free survival. Overall survival and quality of life (QoL) are secondary endpoints. More details at clinicaltrials.gov.

This news organization asked Marc Garnick, MD, professor of medicine, Harvard Medical School and Beth Israel Deaconess Medical Center, Boston, for his take on the trial. “The study is interesting since it is adding to the evaluations of continued intensification for first-line therapy and will help further elucidate the role of PARP inhibition regardless of homologous repair status,” Dr. Garnick said. “Plus, saruparib is supposedly more selective on PARP1, which in-and-of-itself is of potential benefit.”

Metastatic castration-resistant prostate cancer

People with this type of cancer who have progressed on a next-generation hormonal agent may be eligible for a randomized, open-label, phase 3 trial testing an investigational oral treatment called MK-5684 to see if it increases survival more effectively than switching to an alternative next-generation hormonal agent.

MK-5684 is designed to inhibit the CYP11A1 enzyme, thereby disrupting the androgen-receptor signaling pathway.

One group will take twice-daily tablets of MK-5684 plus hormone replacement therapy, oral dexamethasone, and oral fludrocortisone acetate (Florinef), with rescue hydrocortisone as needed. The other participants will take daily tablets of a next-generation hormonal agent: Either enzalutamide or abiraterone. Patients assigned to abiraterone will also be given prednisone tablets.

US-based sites in nine states and Puerto Rico started looking for the trial’s 1500 participants in December 2023 in partnership with study centers in Australia, Israel, South Korea, and Taiwan. The primary endpoints are radiographic progression-free survival and overall survival. QoL will not be tracked. More details at clinicaltrials.gov.

Metastatic castration-resistant prostate cancer

Patients in this situation who have progressed on taxane-based chemotherapy as well as a next-generation hormonal agent have the option to enroll in another phase 3 MK-5684 study.

Like the trial described above, all patients will remain on their respective therapy until disease progression. In this trial, one group will take twice-daily tablets of MK-5684 without hormone replacement therapy but the same mix of oral dexamethasone and fludrocortisone. Rescue hydrocortisone will also be available. The second group will be assigned either enzalutamide or abiraterone plus prednisone.

Sites in Puerto Rico, Colorado, Nevada, and Virginia, and five other countries outside the United States, opened their doors to the first of 1200 patients in December 2023. The primary endpoints are radiographic progression-free survival and overall survival, analyzed separately for patients with and without an androgen receptor ligand-binding domain mutation. QoL will not be measured. More details at clinicaltrials.gov.

High-risk prostate cancer

People with this diagnosis can join a randomized, open-label, phase 3 National Cancer Institute study to test whether stereotactic body radiation therapy (SBRT) is as effective as conventional external beam radiation therapy (EBRT) at preventing metastasis.

SBRT delivers radiation to tumors with higher precision than EBRT. The advantage of SBRT is the ability to deliver fewer doses over a shorter duration with less collateral damage to surrounding tissues.

In the trial, half of participants will undergo five treatments of SBRT over 2 weeks, while the other half will receive 20-45 treatments of EBRT over 4-9 weeks. Study sites in 14 US states began recruiting the trial’s 1209 participants in November 2023. Metastasis-free survival over 15 years is the primary endpoint, overall survival is a secondary endpoint, and QoL measures, apart from fatigue, will not be tracked. More details at clinicaltrials.gov.

Dr. Garnick viewed this study as “problematic because patient accrual ends in 2036 with a readout in 2041.” He added, “What its relevance will be at that time is unlikely to provide practice changes, since in that interval there will undoubtedly be multiple advances in place.”

Newly diagnosed favorable intermediate risk prostate cancer

People with this type of cancer are eligible for an open-label, phase 4 real-world study of a radioactive diagnostic agent called piflufolastat F 18 (Pylarify) that targets prostate-specific membrane antigen (PSMA)–positive lesions. Piflufolastat is designed to enhance detection of metastases during PSMA-targeted PET.

Participants will receive a single injection of piflufolastat followed 1-2 hours later by a single whole-body PET-CT or PET-MRI scan. A study site at the Hoag Cancer Center in Irvine, California, welcomed the first of the trial’s 274 participants in February 2024. Sites in Tower Urology, Los Angeles, and the Cleveland Clinic, Ohio, are gearing up. Detection rate is the primary endpoint. Overall survival and QoL are not measured. More details at clinicaltrials.gov

Stages I-IV prostate cancer without bone metastases. People 60 years or older with this type of prostate cancer who are just starting androgen deprivation therapy are eligible for a phase 3, placebo-controlled trial investigating whether high-dose vitamin D can prevent or reduce androgen-deprivation therapy-induced bone loss.

For 1 year, participants will take tablets of high-dose vitamin D or a placebo and then undergo dual x-ray absorptiometry. The Ochsner Medical Center in Jefferson, Louisiana, started recruiting 366 trial participants in December 2023. Reduction in bone mineral density loss in the hip and spine over 1 year is the primary objective. QoL is a secondary objective, and overall survival will not be measured. More details at clinicaltrials.gov

Dr. Garnick expressed some concerns with the trial design so far, including that “the dose of vitamin D is not delineated nor is the target vitamin D level.”

All trial information is from the National Institutes of Health’s National Library of Medicine (online at clinicaltrials.gov). Dr. Garnick did not report conflicts with any of the trials.
 

A version of this article appeared on Medscape.com.

Several new clinical trials in prostate cancer have started recruiting in recent months. Maybe one of your patients could benefit from enrolling?

Metastatic castration-sensitive prostate cancer 

Adults with this diagnosis may be interested in a randomized, double-blind, phase 3 study examining whether an experimental poly (ADP-ribose) polymerase (PARP) inhibitor called saruparib can further delay disease progression when added to a next-generation hormonal agent such as abiraterone (Zytiga), darolutamide (Nubeqa), or enzalutamide (Xtandi).

One group of participants will take daily oral doses of saruparib plus physician’s choice of a next-generation hormonal agent until disease progression or another reason for stopping therapy. The other group will add a placebo to a next-generation hormonal agent.

Sites in Rhode Island, Arkansas, California, Michigan, Australia, Canada, Japan, Taiwan, Thailand, the United Kingdom, and South Korea began seeking the trial’s 1800 participants in November 2023. Research centers in 31 other US states and 18 other countries are gearing up. The primary endpoint is radiographic progression-free survival. Overall survival and quality of life (QoL) are secondary endpoints. More details at clinicaltrials.gov.

This news organization asked Marc Garnick, MD, professor of medicine, Harvard Medical School and Beth Israel Deaconess Medical Center, Boston, for his take on the trial. “The study is interesting since it is adding to the evaluations of continued intensification for first-line therapy and will help further elucidate the role of PARP inhibition regardless of homologous repair status,” Dr. Garnick said. “Plus, saruparib is supposedly more selective on PARP1, which in-and-of-itself is of potential benefit.”

Metastatic castration-resistant prostate cancer

People with this type of cancer who have progressed on a next-generation hormonal agent may be eligible for a randomized, open-label, phase 3 trial testing an investigational oral treatment called MK-5684 to see if it increases survival more effectively than switching to an alternative next-generation hormonal agent.

MK-5684 is designed to inhibit the CYP11A1 enzyme, thereby disrupting the androgen-receptor signaling pathway.

One group will take twice-daily tablets of MK-5684 plus hormone replacement therapy, oral dexamethasone, and oral fludrocortisone acetate (Florinef), with rescue hydrocortisone as needed. The other participants will take daily tablets of a next-generation hormonal agent: Either enzalutamide or abiraterone. Patients assigned to abiraterone will also be given prednisone tablets.

US-based sites in nine states and Puerto Rico started looking for the trial’s 1500 participants in December 2023 in partnership with study centers in Australia, Israel, South Korea, and Taiwan. The primary endpoints are radiographic progression-free survival and overall survival. QoL will not be tracked. More details at clinicaltrials.gov.

Metastatic castration-resistant prostate cancer

Patients in this situation who have progressed on taxane-based chemotherapy as well as a next-generation hormonal agent have the option to enroll in another phase 3 MK-5684 study.

Like the trial described above, all patients will remain on their respective therapy until disease progression. In this trial, one group will take twice-daily tablets of MK-5684 without hormone replacement therapy but the same mix of oral dexamethasone and fludrocortisone. Rescue hydrocortisone will also be available. The second group will be assigned either enzalutamide or abiraterone plus prednisone.

Sites in Puerto Rico, Colorado, Nevada, and Virginia, and five other countries outside the United States, opened their doors to the first of 1200 patients in December 2023. The primary endpoints are radiographic progression-free survival and overall survival, analyzed separately for patients with and without an androgen receptor ligand-binding domain mutation. QoL will not be measured. More details at clinicaltrials.gov.

High-risk prostate cancer

People with this diagnosis can join a randomized, open-label, phase 3 National Cancer Institute study to test whether stereotactic body radiation therapy (SBRT) is as effective as conventional external beam radiation therapy (EBRT) at preventing metastasis.

SBRT delivers radiation to tumors with higher precision than EBRT. The advantage of SBRT is the ability to deliver fewer doses over a shorter duration with less collateral damage to surrounding tissues.

In the trial, half of participants will undergo five treatments of SBRT over 2 weeks, while the other half will receive 20-45 treatments of EBRT over 4-9 weeks. Study sites in 14 US states began recruiting the trial’s 1209 participants in November 2023. Metastasis-free survival over 15 years is the primary endpoint, overall survival is a secondary endpoint, and QoL measures, apart from fatigue, will not be tracked. More details at clinicaltrials.gov.

Dr. Garnick viewed this study as “problematic because patient accrual ends in 2036 with a readout in 2041.” He added, “What its relevance will be at that time is unlikely to provide practice changes, since in that interval there will undoubtedly be multiple advances in place.”

Newly diagnosed favorable intermediate risk prostate cancer

People with this type of cancer are eligible for an open-label, phase 4 real-world study of a radioactive diagnostic agent called piflufolastat F 18 (Pylarify) that targets prostate-specific membrane antigen (PSMA)–positive lesions. Piflufolastat is designed to enhance detection of metastases during PSMA-targeted PET.

Participants will receive a single injection of piflufolastat followed 1-2 hours later by a single whole-body PET-CT or PET-MRI scan. A study site at the Hoag Cancer Center in Irvine, California, welcomed the first of the trial’s 274 participants in February 2024. Sites in Tower Urology, Los Angeles, and the Cleveland Clinic, Ohio, are gearing up. Detection rate is the primary endpoint. Overall survival and QoL are not measured. More details at clinicaltrials.gov

Stages I-IV prostate cancer without bone metastases. People 60 years or older with this type of prostate cancer who are just starting androgen deprivation therapy are eligible for a phase 3, placebo-controlled trial investigating whether high-dose vitamin D can prevent or reduce androgen-deprivation therapy-induced bone loss.

For 1 year, participants will take tablets of high-dose vitamin D or a placebo and then undergo dual x-ray absorptiometry. The Ochsner Medical Center in Jefferson, Louisiana, started recruiting 366 trial participants in December 2023. Reduction in bone mineral density loss in the hip and spine over 1 year is the primary objective. QoL is a secondary objective, and overall survival will not be measured. More details at clinicaltrials.gov

Dr. Garnick expressed some concerns with the trial design so far, including that “the dose of vitamin D is not delineated nor is the target vitamin D level.”

All trial information is from the National Institutes of Health’s National Library of Medicine (online at clinicaltrials.gov). Dr. Garnick did not report conflicts with any of the trials.
 

A version of this article appeared on Medscape.com.

Several new clinical trials in prostate cancer have started recruiting in recent months. Maybe one of your patients could benefit from enrolling?

Metastatic castration-sensitive prostate cancer 

Adults with this diagnosis may be interested in a randomized, double-blind, phase 3 study examining whether an experimental poly (ADP-ribose) polymerase (PARP) inhibitor called saruparib can further delay disease progression when added to a next-generation hormonal agent such as abiraterone (Zytiga), darolutamide (Nubeqa), or enzalutamide (Xtandi).

One group of participants will take daily oral doses of saruparib plus physician’s choice of a next-generation hormonal agent until disease progression or another reason for stopping therapy. The other group will add a placebo to a next-generation hormonal agent.

Sites in Rhode Island, Arkansas, California, Michigan, Australia, Canada, Japan, Taiwan, Thailand, the United Kingdom, and South Korea began seeking the trial’s 1800 participants in November 2023. Research centers in 31 other US states and 18 other countries are gearing up. The primary endpoint is radiographic progression-free survival. Overall survival and quality of life (QoL) are secondary endpoints. More details at clinicaltrials.gov.

This news organization asked Marc Garnick, MD, professor of medicine, Harvard Medical School and Beth Israel Deaconess Medical Center, Boston, for his take on the trial. “The study is interesting since it is adding to the evaluations of continued intensification for first-line therapy and will help further elucidate the role of PARP inhibition regardless of homologous repair status,” Dr. Garnick said. “Plus, saruparib is supposedly more selective on PARP1, which in-and-of-itself is of potential benefit.”

Metastatic castration-resistant prostate cancer

People with this type of cancer who have progressed on a next-generation hormonal agent may be eligible for a randomized, open-label, phase 3 trial testing an investigational oral treatment called MK-5684 to see if it increases survival more effectively than switching to an alternative next-generation hormonal agent.

MK-5684 is designed to inhibit the CYP11A1 enzyme, thereby disrupting the androgen-receptor signaling pathway.

One group will take twice-daily tablets of MK-5684 plus hormone replacement therapy, oral dexamethasone, and oral fludrocortisone acetate (Florinef), with rescue hydrocortisone as needed. The other participants will take daily tablets of a next-generation hormonal agent: Either enzalutamide or abiraterone. Patients assigned to abiraterone will also be given prednisone tablets.

US-based sites in nine states and Puerto Rico started looking for the trial’s 1500 participants in December 2023 in partnership with study centers in Australia, Israel, South Korea, and Taiwan. The primary endpoints are radiographic progression-free survival and overall survival. QoL will not be tracked. More details at clinicaltrials.gov.

Metastatic castration-resistant prostate cancer

Patients in this situation who have progressed on taxane-based chemotherapy as well as a next-generation hormonal agent have the option to enroll in another phase 3 MK-5684 study.

Like the trial described above, all patients will remain on their respective therapy until disease progression. In this trial, one group will take twice-daily tablets of MK-5684 without hormone replacement therapy but the same mix of oral dexamethasone and fludrocortisone. Rescue hydrocortisone will also be available. The second group will be assigned either enzalutamide or abiraterone plus prednisone.

Sites in Puerto Rico, Colorado, Nevada, and Virginia, and five other countries outside the United States, opened their doors to the first of 1200 patients in December 2023. The primary endpoints are radiographic progression-free survival and overall survival, analyzed separately for patients with and without an androgen receptor ligand-binding domain mutation. QoL will not be measured. More details at clinicaltrials.gov.

High-risk prostate cancer

People with this diagnosis can join a randomized, open-label, phase 3 National Cancer Institute study to test whether stereotactic body radiation therapy (SBRT) is as effective as conventional external beam radiation therapy (EBRT) at preventing metastasis.

SBRT delivers radiation to tumors with higher precision than EBRT. The advantage of SBRT is the ability to deliver fewer doses over a shorter duration with less collateral damage to surrounding tissues.

In the trial, half of participants will undergo five treatments of SBRT over 2 weeks, while the other half will receive 20-45 treatments of EBRT over 4-9 weeks. Study sites in 14 US states began recruiting the trial’s 1209 participants in November 2023. Metastasis-free survival over 15 years is the primary endpoint, overall survival is a secondary endpoint, and QoL measures, apart from fatigue, will not be tracked. More details at clinicaltrials.gov.

Dr. Garnick viewed this study as “problematic because patient accrual ends in 2036 with a readout in 2041.” He added, “What its relevance will be at that time is unlikely to provide practice changes, since in that interval there will undoubtedly be multiple advances in place.”

Newly diagnosed favorable intermediate risk prostate cancer

People with this type of cancer are eligible for an open-label, phase 4 real-world study of a radioactive diagnostic agent called piflufolastat F 18 (Pylarify) that targets prostate-specific membrane antigen (PSMA)–positive lesions. Piflufolastat is designed to enhance detection of metastases during PSMA-targeted PET.

Participants will receive a single injection of piflufolastat followed 1-2 hours later by a single whole-body PET-CT or PET-MRI scan. A study site at the Hoag Cancer Center in Irvine, California, welcomed the first of the trial’s 274 participants in February 2024. Sites in Tower Urology, Los Angeles, and the Cleveland Clinic, Ohio, are gearing up. Detection rate is the primary endpoint. Overall survival and QoL are not measured. More details at clinicaltrials.gov

Stages I-IV prostate cancer without bone metastases. People 60 years or older with this type of prostate cancer who are just starting androgen deprivation therapy are eligible for a phase 3, placebo-controlled trial investigating whether high-dose vitamin D can prevent or reduce androgen-deprivation therapy-induced bone loss.

For 1 year, participants will take tablets of high-dose vitamin D or a placebo and then undergo dual x-ray absorptiometry. The Ochsner Medical Center in Jefferson, Louisiana, started recruiting 366 trial participants in December 2023. Reduction in bone mineral density loss in the hip and spine over 1 year is the primary objective. QoL is a secondary objective, and overall survival will not be measured. More details at clinicaltrials.gov

Dr. Garnick expressed some concerns with the trial design so far, including that “the dose of vitamin D is not delineated nor is the target vitamin D level.”

All trial information is from the National Institutes of Health’s National Library of Medicine (online at clinicaltrials.gov). Dr. Garnick did not report conflicts with any of the trials.
 

A version of this article appeared on Medscape.com.

Targeted treatments, including antibody-drug conjugates and immunotherapy agents, are now standard of care for breast cancer, but there are limited data on the safety of combining these newer agents alongside radiotherapy.

One reason is studies of new drugs typically exclude concurrent radiotherapy, said Kathy Miller, MD, a contributor to this news organization and professor of oncology and medicine at the Indiana University School of Medicine, Indianapolis, Indiana.

If trials evaluating new targeted therapies included concurrent radiotherapy, it would be challenging to identify whether toxicities came from the drug itself, the radiation, or the combination, Dr. Miller explained.

Given the limited evidence, “we tend to be cautious and conservative” and not combine therapies that “we don’t know are safe or appropriate for patients,” said Chirag Shah, MD, director of breast radiology at the Cleveland Clinic, Cleveland, Ohio.

Below is a guide to what we do and don’t know about combining radiotherapy and systemic treatments in breast cancer.

1. Immunotherapy plus radiotherapy likely safe but evidence is limited

Safety data on combining immune checkpoint inhibitors and radiotherapy in breast cancer are limited because concurrent radiotherapy has typically been excluded in pivotal trials.

The 2020 KEYNOTE-522 trial did provide a rare look at concurrent radiotherapy and immunotherapy in early triple-negative breast cancer. The analysis found “no safety concerns” with concurrent radiotherapy and pembrolizumab, lead investigator Peter Schmid, MD, of Queen Mary University of London, England, told this news organization.

Research on other solid tumor types also suggests that radiotherapy “can be considered safe” alongside immunotherapy, the authors of a recent ESTRO consensus said.

Despite evidence indicating radiotherapy alongside immunotherapy can be safe in patients with breast cancer, “certain aspects, such as patient selection, total dose, and dose per fraction, remain open for debate to achieve the best therapeutic outcomes,” the ESTRO experts cautioned.

2. CDK4/6 inhibitors may be offered with radiotherapy in some settings, not others

CDK4/6 inhibitors are now standard of care for first- or second-line treatment in patients with advanced or metastatic hormone receptor–positive, human epidermal growth factor receptor 2 (HER2)–negative breast cancer.

“Unfortunately, we found no information regarding concurrent radiotherapy in the adjuvant setting” in pivotal trials for palbociclib, abemaciclib, and ribociclib, the ESTRO authors said. In the pivotal trials for palbociclib and abemaciclib, patients had to discontinue immunotherapy before initiating radiotherapy, and in the trial for ribociclib, palliative radiotherapy was allowed for relieving bone pain only.

However, in 2023, a team of experts from 12 countries attempted to piece together the available evidence, publishing a meta-analysis of 11 retrospective studies on the safety of CDK4/6 inhibitors given concurrently with radiotherapy in patients with metastatic disease.

Although most of these studies had small patient populations, the analysis revealed that CDK4/6 inhibitors given concurrently with radiotherapy in patients with metastatic breast cancer led to a similar side-effect profile to that observed in trials of the inhibitors given sequentially with adjuvant radiotherapy.

“These findings suggest that the simultaneous administration of CDK4/6 inhibitors and radiotherapy is generally well tolerated,” the ESTRO authors concluded but added that CDK4/6 inhibitors and concomitant radiotherapy should be investigated more in the adjuvant locoregional, whole brain, and intracranial stereotactic radiotherapy settings.

The expert panel did note, however, that CDK4/6 inhibitors and concomitant radiotherapy “could be offered” during palliative and ablative extracranial radiotherapy.

3. Only offer poly (ADP-ribose) polymerase (PARP) inhibitors plus radiotherapy in clinical trial setting

PARP inhibitors olaparib (Lynparza) and talazoprib (Talzenna) are standard of care in patients with metastatic breast cancer who have BRCA1/2 gene mutations. Olaparib is also indicated for high-risk early breast cancer following neoadjuvant or adjuvant chemotherapy.

But data on combining PARP inhibitors with radiotherapy in breast cancer also remain limited.

One ongoing phase 2 trial, comparing olaparib plus radiotherapy to radiotherapy alone in 300 people with inflammatory breast cancer, is aiming to tease out the safety of the combination and whether it improves local control in patients with aggressive disease.

“The desire is to explore the exciting possibility that low doses of PARP inhibition may radiosensitize tumor cells more than normal tissues,” Reshma Jagsi, MD, chair of the Department of Radiation Oncology at Emory University School of Medicine in Atlanta, Georgia, who is leading the study.

Because of potential good or bad interactions between new systemic therapies and radiotherapy, “intentional trial design” is important, Dr. Jagsi said, so we “know the best way to combine treatments in practice to optimize outcomes.”

But given the evidence to date, the ESTRO experts advised waiting until “further research provides more comprehensive safety and efficacy data” in the primary, adjuvant, and metastatic settings. The experts also advised not offering PARP inhibitors and concomitant radiotherapy to treat advanced breast cancer outside of clinical trials.

4. Phosphoinositide 3-kinase inhibitors (PI3K) inhibitors, mammalian target of rapamycin (mTOR) inhibitors, and newer targeted agents should not be offered concurrently with radiotherapy

Clinical trial data on the safety of combining PI3K and mTOR inhibitors with radiation are thin, especially in advanced breast cancer. Typically, radiotherapy within 4 weeks before randomization, or 2 weeks for palliative radiation, was excluded in pivotal trials.

For this reason, the ESTRO team recommended that concurrent radiation with either PI3K inhibitors or mTOR inhibitors “should not be offered.”

ESTRO also cautioned against providing radiation concurrently with newer anti-HER2 tyrosine-kinase drugs, such as neratinib or tucatinib, or newer antibody-drug conjugates such as trastuzumab deruxtecan, until more data emerge on the safety of these combinations.

5. Combining older HER2-targeted drugs and radiotherapy generally safe

The ESTRO authors agreed that older anti-HER2 drugs trastuzumab (Herceptin), pertuzumab (Perjeta), and lapatinib (Tykerb) can be safely used concurrently with locoregional radiotherapy as well.

One of the biggest concerns in the field is how to combine radiation with systemic therapies in the setting of brain metastases, and the data on these older anti-HER2 drugs are relatively clear that it’s safe, Dr. Miller said.

For instance, in a 2019 study of 84 patients with 487 brain metastases, stereotactic radiosurgery given alongside lapatinib led to significantly higher rates of complete responses than stereotactic radiosurgery alone (35% vs 11%) with no increased risk for radiation necrosis.

The ESTRO team agreed, noting that the latest evidence supports the use of trastuzumab, pertuzumab, or lapatinib alongside radiotherapy for whole brain and ablative intracranial stereotactic radiotherapy.

As for older antibody-drug conjugates, trastuzumab emtansine (T-DM1) plus radiotherapy “might be considered” during adjuvant locoregional radiotherapy for breast cancer but should not be offered for whole brain and ablative intracranial stereotactic radiotherapy, the ESTRO team said.

Dr. Jagsi declared the following conflicts in a recent 2024 publication: Stock options for advisory board role in Equity Quotient; grants or contracts from Genentech; and expert witness for Kleinbard, LLC, and Hawks Quindel Law. In the Keynote-522 trial publication Dr. Schmid declared relationships with AstraZeneca, Bayer, Boehringer Ingelheim, Celgene, Eisai, Hoffmann-La Roche, Genetech, Merck, Novartis, and Pfizer. Dr. Shah reported consulting for Impedimed, Videra Surgical, and PreludeDX.

A version of this article appeared on Medscape.com.

Targeted treatments, including antibody-drug conjugates and immunotherapy agents, are now standard of care for breast cancer, but there are limited data on the safety of combining these newer agents alongside radiotherapy.

One reason is studies of new drugs typically exclude concurrent radiotherapy, said Kathy Miller, MD, a contributor to this news organization and professor of oncology and medicine at the Indiana University School of Medicine, Indianapolis, Indiana.

If trials evaluating new targeted therapies included concurrent radiotherapy, it would be challenging to identify whether toxicities came from the drug itself, the radiation, or the combination, Dr. Miller explained.

Given the limited evidence, “we tend to be cautious and conservative” and not combine therapies that “we don’t know are safe or appropriate for patients,” said Chirag Shah, MD, director of breast radiology at the Cleveland Clinic, Cleveland, Ohio.

Below is a guide to what we do and don’t know about combining radiotherapy and systemic treatments in breast cancer.

1. Immunotherapy plus radiotherapy likely safe but evidence is limited

Safety data on combining immune checkpoint inhibitors and radiotherapy in breast cancer are limited because concurrent radiotherapy has typically been excluded in pivotal trials.

The 2020 KEYNOTE-522 trial did provide a rare look at concurrent radiotherapy and immunotherapy in early triple-negative breast cancer. The analysis found “no safety concerns” with concurrent radiotherapy and pembrolizumab, lead investigator Peter Schmid, MD, of Queen Mary University of London, England, told this news organization.

Research on other solid tumor types also suggests that radiotherapy “can be considered safe” alongside immunotherapy, the authors of a recent ESTRO consensus said.

Despite evidence indicating radiotherapy alongside immunotherapy can be safe in patients with breast cancer, “certain aspects, such as patient selection, total dose, and dose per fraction, remain open for debate to achieve the best therapeutic outcomes,” the ESTRO experts cautioned.

2. CDK4/6 inhibitors may be offered with radiotherapy in some settings, not others

CDK4/6 inhibitors are now standard of care for first- or second-line treatment in patients with advanced or metastatic hormone receptor–positive, human epidermal growth factor receptor 2 (HER2)–negative breast cancer.

“Unfortunately, we found no information regarding concurrent radiotherapy in the adjuvant setting” in pivotal trials for palbociclib, abemaciclib, and ribociclib, the ESTRO authors said. In the pivotal trials for palbociclib and abemaciclib, patients had to discontinue immunotherapy before initiating radiotherapy, and in the trial for ribociclib, palliative radiotherapy was allowed for relieving bone pain only.

However, in 2023, a team of experts from 12 countries attempted to piece together the available evidence, publishing a meta-analysis of 11 retrospective studies on the safety of CDK4/6 inhibitors given concurrently with radiotherapy in patients with metastatic disease.

Although most of these studies had small patient populations, the analysis revealed that CDK4/6 inhibitors given concurrently with radiotherapy in patients with metastatic breast cancer led to a similar side-effect profile to that observed in trials of the inhibitors given sequentially with adjuvant radiotherapy.

“These findings suggest that the simultaneous administration of CDK4/6 inhibitors and radiotherapy is generally well tolerated,” the ESTRO authors concluded but added that CDK4/6 inhibitors and concomitant radiotherapy should be investigated more in the adjuvant locoregional, whole brain, and intracranial stereotactic radiotherapy settings.

The expert panel did note, however, that CDK4/6 inhibitors and concomitant radiotherapy “could be offered” during palliative and ablative extracranial radiotherapy.

3. Only offer poly (ADP-ribose) polymerase (PARP) inhibitors plus radiotherapy in clinical trial setting

PARP inhibitors olaparib (Lynparza) and talazoprib (Talzenna) are standard of care in patients with metastatic breast cancer who have BRCA1/2 gene mutations. Olaparib is also indicated for high-risk early breast cancer following neoadjuvant or adjuvant chemotherapy.

But data on combining PARP inhibitors with radiotherapy in breast cancer also remain limited.

One ongoing phase 2 trial, comparing olaparib plus radiotherapy to radiotherapy alone in 300 people with inflammatory breast cancer, is aiming to tease out the safety of the combination and whether it improves local control in patients with aggressive disease.

“The desire is to explore the exciting possibility that low doses of PARP inhibition may radiosensitize tumor cells more than normal tissues,” Reshma Jagsi, MD, chair of the Department of Radiation Oncology at Emory University School of Medicine in Atlanta, Georgia, who is leading the study.

Because of potential good or bad interactions between new systemic therapies and radiotherapy, “intentional trial design” is important, Dr. Jagsi said, so we “know the best way to combine treatments in practice to optimize outcomes.”

But given the evidence to date, the ESTRO experts advised waiting until “further research provides more comprehensive safety and efficacy data” in the primary, adjuvant, and metastatic settings. The experts also advised not offering PARP inhibitors and concomitant radiotherapy to treat advanced breast cancer outside of clinical trials.

4. Phosphoinositide 3-kinase inhibitors (PI3K) inhibitors, mammalian target of rapamycin (mTOR) inhibitors, and newer targeted agents should not be offered concurrently with radiotherapy

Clinical trial data on the safety of combining PI3K and mTOR inhibitors with radiation are thin, especially in advanced breast cancer. Typically, radiotherapy within 4 weeks before randomization, or 2 weeks for palliative radiation, was excluded in pivotal trials.

For this reason, the ESTRO team recommended that concurrent radiation with either PI3K inhibitors or mTOR inhibitors “should not be offered.”

ESTRO also cautioned against providing radiation concurrently with newer anti-HER2 tyrosine-kinase drugs, such as neratinib or tucatinib, or newer antibody-drug conjugates such as trastuzumab deruxtecan, until more data emerge on the safety of these combinations.

5. Combining older HER2-targeted drugs and radiotherapy generally safe

The ESTRO authors agreed that older anti-HER2 drugs trastuzumab (Herceptin), pertuzumab (Perjeta), and lapatinib (Tykerb) can be safely used concurrently with locoregional radiotherapy as well.

One of the biggest concerns in the field is how to combine radiation with systemic therapies in the setting of brain metastases, and the data on these older anti-HER2 drugs are relatively clear that it’s safe, Dr. Miller said.

For instance, in a 2019 study of 84 patients with 487 brain metastases, stereotactic radiosurgery given alongside lapatinib led to significantly higher rates of complete responses than stereotactic radiosurgery alone (35% vs 11%) with no increased risk for radiation necrosis.

The ESTRO team agreed, noting that the latest evidence supports the use of trastuzumab, pertuzumab, or lapatinib alongside radiotherapy for whole brain and ablative intracranial stereotactic radiotherapy.

As for older antibody-drug conjugates, trastuzumab emtansine (T-DM1) plus radiotherapy “might be considered” during adjuvant locoregional radiotherapy for breast cancer but should not be offered for whole brain and ablative intracranial stereotactic radiotherapy, the ESTRO team said.

Dr. Jagsi declared the following conflicts in a recent 2024 publication: Stock options for advisory board role in Equity Quotient; grants or contracts from Genentech; and expert witness for Kleinbard, LLC, and Hawks Quindel Law. In the Keynote-522 trial publication Dr. Schmid declared relationships with AstraZeneca, Bayer, Boehringer Ingelheim, Celgene, Eisai, Hoffmann-La Roche, Genetech, Merck, Novartis, and Pfizer. Dr. Shah reported consulting for Impedimed, Videra Surgical, and PreludeDX.

A version of this article appeared on Medscape.com.

Targeted treatments, including antibody-drug conjugates and immunotherapy agents, are now standard of care for breast cancer, but there are limited data on the safety of combining these newer agents alongside radiotherapy.

One reason is studies of new drugs typically exclude concurrent radiotherapy, said Kathy Miller, MD, a contributor to this news organization and professor of oncology and medicine at the Indiana University School of Medicine, Indianapolis, Indiana.

If trials evaluating new targeted therapies included concurrent radiotherapy, it would be challenging to identify whether toxicities came from the drug itself, the radiation, or the combination, Dr. Miller explained.

Given the limited evidence, “we tend to be cautious and conservative” and not combine therapies that “we don’t know are safe or appropriate for patients,” said Chirag Shah, MD, director of breast radiology at the Cleveland Clinic, Cleveland, Ohio.

Below is a guide to what we do and don’t know about combining radiotherapy and systemic treatments in breast cancer.

1. Immunotherapy plus radiotherapy likely safe but evidence is limited

Safety data on combining immune checkpoint inhibitors and radiotherapy in breast cancer are limited because concurrent radiotherapy has typically been excluded in pivotal trials.

The 2020 KEYNOTE-522 trial did provide a rare look at concurrent radiotherapy and immunotherapy in early triple-negative breast cancer. The analysis found “no safety concerns” with concurrent radiotherapy and pembrolizumab, lead investigator Peter Schmid, MD, of Queen Mary University of London, England, told this news organization.

Research on other solid tumor types also suggests that radiotherapy “can be considered safe” alongside immunotherapy, the authors of a recent ESTRO consensus said.

Despite evidence indicating radiotherapy alongside immunotherapy can be safe in patients with breast cancer, “certain aspects, such as patient selection, total dose, and dose per fraction, remain open for debate to achieve the best therapeutic outcomes,” the ESTRO experts cautioned.

2. CDK4/6 inhibitors may be offered with radiotherapy in some settings, not others

CDK4/6 inhibitors are now standard of care for first- or second-line treatment in patients with advanced or metastatic hormone receptor–positive, human epidermal growth factor receptor 2 (HER2)–negative breast cancer.

“Unfortunately, we found no information regarding concurrent radiotherapy in the adjuvant setting” in pivotal trials for palbociclib, abemaciclib, and ribociclib, the ESTRO authors said. In the pivotal trials for palbociclib and abemaciclib, patients had to discontinue immunotherapy before initiating radiotherapy, and in the trial for ribociclib, palliative radiotherapy was allowed for relieving bone pain only.

However, in 2023, a team of experts from 12 countries attempted to piece together the available evidence, publishing a meta-analysis of 11 retrospective studies on the safety of CDK4/6 inhibitors given concurrently with radiotherapy in patients with metastatic disease.

Although most of these studies had small patient populations, the analysis revealed that CDK4/6 inhibitors given concurrently with radiotherapy in patients with metastatic breast cancer led to a similar side-effect profile to that observed in trials of the inhibitors given sequentially with adjuvant radiotherapy.

“These findings suggest that the simultaneous administration of CDK4/6 inhibitors and radiotherapy is generally well tolerated,” the ESTRO authors concluded but added that CDK4/6 inhibitors and concomitant radiotherapy should be investigated more in the adjuvant locoregional, whole brain, and intracranial stereotactic radiotherapy settings.

The expert panel did note, however, that CDK4/6 inhibitors and concomitant radiotherapy “could be offered” during palliative and ablative extracranial radiotherapy.

3. Only offer poly (ADP-ribose) polymerase (PARP) inhibitors plus radiotherapy in clinical trial setting

PARP inhibitors olaparib (Lynparza) and talazoprib (Talzenna) are standard of care in patients with metastatic breast cancer who have BRCA1/2 gene mutations. Olaparib is also indicated for high-risk early breast cancer following neoadjuvant or adjuvant chemotherapy.

But data on combining PARP inhibitors with radiotherapy in breast cancer also remain limited.

One ongoing phase 2 trial, comparing olaparib plus radiotherapy to radiotherapy alone in 300 people with inflammatory breast cancer, is aiming to tease out the safety of the combination and whether it improves local control in patients with aggressive disease.

“The desire is to explore the exciting possibility that low doses of PARP inhibition may radiosensitize tumor cells more than normal tissues,” Reshma Jagsi, MD, chair of the Department of Radiation Oncology at Emory University School of Medicine in Atlanta, Georgia, who is leading the study.

Because of potential good or bad interactions between new systemic therapies and radiotherapy, “intentional trial design” is important, Dr. Jagsi said, so we “know the best way to combine treatments in practice to optimize outcomes.”

But given the evidence to date, the ESTRO experts advised waiting until “further research provides more comprehensive safety and efficacy data” in the primary, adjuvant, and metastatic settings. The experts also advised not offering PARP inhibitors and concomitant radiotherapy to treat advanced breast cancer outside of clinical trials.

4. Phosphoinositide 3-kinase inhibitors (PI3K) inhibitors, mammalian target of rapamycin (mTOR) inhibitors, and newer targeted agents should not be offered concurrently with radiotherapy

Clinical trial data on the safety of combining PI3K and mTOR inhibitors with radiation are thin, especially in advanced breast cancer. Typically, radiotherapy within 4 weeks before randomization, or 2 weeks for palliative radiation, was excluded in pivotal trials.

For this reason, the ESTRO team recommended that concurrent radiation with either PI3K inhibitors or mTOR inhibitors “should not be offered.”

ESTRO also cautioned against providing radiation concurrently with newer anti-HER2 tyrosine-kinase drugs, such as neratinib or tucatinib, or newer antibody-drug conjugates such as trastuzumab deruxtecan, until more data emerge on the safety of these combinations.

5. Combining older HER2-targeted drugs and radiotherapy generally safe

The ESTRO authors agreed that older anti-HER2 drugs trastuzumab (Herceptin), pertuzumab (Perjeta), and lapatinib (Tykerb) can be safely used concurrently with locoregional radiotherapy as well.

One of the biggest concerns in the field is how to combine radiation with systemic therapies in the setting of brain metastases, and the data on these older anti-HER2 drugs are relatively clear that it’s safe, Dr. Miller said.

For instance, in a 2019 study of 84 patients with 487 brain metastases, stereotactic radiosurgery given alongside lapatinib led to significantly higher rates of complete responses than stereotactic radiosurgery alone (35% vs 11%) with no increased risk for radiation necrosis.

The ESTRO team agreed, noting that the latest evidence supports the use of trastuzumab, pertuzumab, or lapatinib alongside radiotherapy for whole brain and ablative intracranial stereotactic radiotherapy.

As for older antibody-drug conjugates, trastuzumab emtansine (T-DM1) plus radiotherapy “might be considered” during adjuvant locoregional radiotherapy for breast cancer but should not be offered for whole brain and ablative intracranial stereotactic radiotherapy, the ESTRO team said.

Dr. Jagsi declared the following conflicts in a recent 2024 publication: Stock options for advisory board role in Equity Quotient; grants or contracts from Genentech; and expert witness for Kleinbard, LLC, and Hawks Quindel Law. In the Keynote-522 trial publication Dr. Schmid declared relationships with AstraZeneca, Bayer, Boehringer Ingelheim, Celgene, Eisai, Hoffmann-La Roche, Genetech, Merck, Novartis, and Pfizer. Dr. Shah reported consulting for Impedimed, Videra Surgical, and PreludeDX.

A version of this article appeared on Medscape.com.

Several clinical trials in leukemia and lymphoma have started enrolling recently. Maybe one of your patients could benefit from taking part?

Hematological malignancy scheduled for a human leukocyte antigen–mismatched unrelated donor transplant. Adult patients in this situation who are younger than 66 years may be eligible for a randomized, open-label, phase 2 study run by the Center for International Blood and Bone Marrow Transplant Research.

The purpose of the study is to test whether cyclophosphamide, which is given to prevent a dreaded complication of stem cell transplantation called graft-versus-host disease, can be safely reduced without increasing infection or reducing protection. All participants will receive cyclophosphamide on days 3 and 4 post transplant. One group will receive a reduced dose of cyclophosphamide (25 mg/kg per dose), and the other will be given a usual dose (37.5 mg/kg).

Sites in Michigan, Missouri, Oregon, Virginia, and Washington started recruiting for 190 participants in December 2023. Study centers in Florida, Massachusetts, New York, and Wisconsin are also planned. Infection-free survival is the primary endpoint, and overall survival is a secondary measure. Quality of life (QoL) is not recorded. More details at clinicaltrials.gov.

Untreated chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL). Adults who are newly diagnosed with this type of cancer and have active disease may wish to consider a randomized, open-label, phase 3 trial testing an experimental Bruton tyrosine kinase (BTK) inhibitor, nemtabrutinib (from Merck Sharp & Dohme), against standard-of-care BTK inhibitors ibrutinib (Imbruvica) and acalabrutinib (Calquence).

BTK inhibitors target B-cell proliferation in B-cell cancers such as CLL/SLL and allow for chemotherapy-free treatment of some hematological malignancies. In this study, until disease progression, unacceptable toxicity, or another reason for discontinuation occurs, participants will take daily oral nemtabrutinib, ibrutinib, or acalabrutinib.

The study opened in December 2023 in Pennsylvania, Washington, Taiwan, Israel, and the United Kingdom seeking 1200 participants. The primary outcomes are objective response rate and progression-free survival. Overall survival is a secondary outcome, and QoL is not measured. More details at clinicaltrials.gov.

Relapsed or refractory leukemia with a KMT2A-gene rearrangement (KMT2A-r). Children aged 1 month to younger than 6 years with this diagnosis may be able to join an open-label, nonrandomized, Children’s Oncology Group phase 2 study to determine the most tolerable and/or effective dose of an experimental oral drug called revumenib when added to chemotherapy.

KMT2A-gene alterations are associated with a poor prognosis in leukemia. These alterations cause blood cells to dedifferentiate and start proliferating uncontrollably as leukemia cells. The expression of the damaged KMT2A gene relies on a protein called menin. Revumenib, from Syndax Pharmaceuticals, blocks menin and prevents expression of KMT2A.

Children in the study will receive two different regimens of revumenib in combination with chemotherapy for up to a year, or until disease progression or unacceptable toxicity, and will then be followed for up to 5 years. Trial centers in 12 US states opened their doors in January 2024 looking for 78 participants. Toxicities and minimal residual disease are the primary outcomes; overall survival is a secondary outcome, and QoL is not assessed. More details at clinicaltrials.gov.

Previously untreated follicular lymphoma or diffuse large B-cell lymphoma. Adults with one of these types of lymphoma may be eligible for one of three open-label, randomized, phase 3 trials testing odronextamab (from Regeneron). This bispecific antibody is designed to ‘lock together’ CD20 on cancer cells with CD3-expressing cancer-killing T cells. It has shown anti-lymphoma activity in heavily pretreated patients.

Late in 2023, three phase 3 trials turned the spotlight on treatment-naive patients and started recruiting 2115 participants to assess odronextamab in this setting. The trial OLYMPIA-1 will compare odronextamab with standard-of-care rituximab (Rituxan) plus chemotherapy in follicular lymphoma. OLYMPIA-2 will test the drug in combination with chemotherapy, also in follicular lymphoma. OLYMPIA-3 will evaluate odronextamab plus chemotherapy against rituximab and chemotherapy in people with large B-cell lymphoma.

All study drugs, including odronextamab, will be administered by intravenous infusion, and participants will be followed for up to 5 years. Research centers across eight US states and Australia, Czechia, France, Italy, Poland, Spain, Turkey, and Thailand are currently accepting participants for the three trials. The primary outcomes are various measures of toxicity and complete response at 30 months in the follicular lymphoma studies and toxicity and progression-free survival in large B-cell lymphoma. All three trials are measuring overall survival and QoL as secondary endpoints.

Previously untreated stage II, III, or IV follicular lymphoma. Adults with this type of cancer may be eligible to participate in a randomized, open-label, phase 3 study testing whether an experimental therapy called epcoritamab (from AbbVie) improves disease response and is tolerable when added to standard therapy. For up to 120 weeks, one group of participants will receive a combination of intravenous rituximab and oral lenalidomide (Revlimid), while a second group will also receive subcutaneous injections of epcoritamab. Some participants may be offered investigators’ choice of chemotherapy as well.

Sites across Iowa, Maryland, Missouri, Ohio, Washington, and Montana started welcoming their 900 participants in February 2024. The primary outcome is complete response at 30 months. Overall survival and QoL are secondary outcomes. More details at clinicaltrials.gov.

Relapsed or refractory mantle cell lymphoma. Adults facing one of these clinical scenarios can join an Academic and Community Cancer Research United open label, phase 2 trial examining the effectiveness of combining tafasitamab (Monjuvi), lenalidomide, and venetoclax (Venclexta) for such patients.

Frontline therapy does not cure mantle cell lymphoma, and continued relapses are common. In this situation, treatments can include acalabrutinib, ibrutinib, stem cell transplantation, venetoclax, lenalidomide, and rituximab.

In this study, participants will take venetoclax and lenalidomide daily and receive intravenous tafasitamab every 2 weeks after an initial ramp-up period as per clinic standards. Participants will be followed for 5 years after entering the trial. The Mayo Clinic in Rochester, Minnesota, began recruiting the planned 100 trial participants in January 2024. The primary outcome is objective response rate; overall survival is a secondary outcome, and QoL will not be tracked. More details at clinicaltrials.gov.

All trial information is from the National Institutes of Health US National Library of Medicine (online at clinicaltrials.gov).

A version of this article appeared on Medscape.com .

Several clinical trials in leukemia and lymphoma have started enrolling recently. Maybe one of your patients could benefit from taking part?

Hematological malignancy scheduled for a human leukocyte antigen–mismatched unrelated donor transplant. Adult patients in this situation who are younger than 66 years may be eligible for a randomized, open-label, phase 2 study run by the Center for International Blood and Bone Marrow Transplant Research.

The purpose of the study is to test whether cyclophosphamide, which is given to prevent a dreaded complication of stem cell transplantation called graft-versus-host disease, can be safely reduced without increasing infection or reducing protection. All participants will receive cyclophosphamide on days 3 and 4 post transplant. One group will receive a reduced dose of cyclophosphamide (25 mg/kg per dose), and the other will be given a usual dose (37.5 mg/kg).

Sites in Michigan, Missouri, Oregon, Virginia, and Washington started recruiting for 190 participants in December 2023. Study centers in Florida, Massachusetts, New York, and Wisconsin are also planned. Infection-free survival is the primary endpoint, and overall survival is a secondary measure. Quality of life (QoL) is not recorded. More details at clinicaltrials.gov.

Untreated chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL). Adults who are newly diagnosed with this type of cancer and have active disease may wish to consider a randomized, open-label, phase 3 trial testing an experimental Bruton tyrosine kinase (BTK) inhibitor, nemtabrutinib (from Merck Sharp & Dohme), against standard-of-care BTK inhibitors ibrutinib (Imbruvica) and acalabrutinib (Calquence).

BTK inhibitors target B-cell proliferation in B-cell cancers such as CLL/SLL and allow for chemotherapy-free treatment of some hematological malignancies. In this study, until disease progression, unacceptable toxicity, or another reason for discontinuation occurs, participants will take daily oral nemtabrutinib, ibrutinib, or acalabrutinib.

The study opened in December 2023 in Pennsylvania, Washington, Taiwan, Israel, and the United Kingdom seeking 1200 participants. The primary outcomes are objective response rate and progression-free survival. Overall survival is a secondary outcome, and QoL is not measured. More details at clinicaltrials.gov.

Relapsed or refractory leukemia with a KMT2A-gene rearrangement (KMT2A-r). Children aged 1 month to younger than 6 years with this diagnosis may be able to join an open-label, nonrandomized, Children’s Oncology Group phase 2 study to determine the most tolerable and/or effective dose of an experimental oral drug called revumenib when added to chemotherapy.

KMT2A-gene alterations are associated with a poor prognosis in leukemia. These alterations cause blood cells to dedifferentiate and start proliferating uncontrollably as leukemia cells. The expression of the damaged KMT2A gene relies on a protein called menin. Revumenib, from Syndax Pharmaceuticals, blocks menin and prevents expression of KMT2A.

Children in the study will receive two different regimens of revumenib in combination with chemotherapy for up to a year, or until disease progression or unacceptable toxicity, and will then be followed for up to 5 years. Trial centers in 12 US states opened their doors in January 2024 looking for 78 participants. Toxicities and minimal residual disease are the primary outcomes; overall survival is a secondary outcome, and QoL is not assessed. More details at clinicaltrials.gov.

Previously untreated follicular lymphoma or diffuse large B-cell lymphoma. Adults with one of these types of lymphoma may be eligible for one of three open-label, randomized, phase 3 trials testing odronextamab (from Regeneron). This bispecific antibody is designed to ‘lock together’ CD20 on cancer cells with CD3-expressing cancer-killing T cells. It has shown anti-lymphoma activity in heavily pretreated patients.

Late in 2023, three phase 3 trials turned the spotlight on treatment-naive patients and started recruiting 2115 participants to assess odronextamab in this setting. The trial OLYMPIA-1 will compare odronextamab with standard-of-care rituximab (Rituxan) plus chemotherapy in follicular lymphoma. OLYMPIA-2 will test the drug in combination with chemotherapy, also in follicular lymphoma. OLYMPIA-3 will evaluate odronextamab plus chemotherapy against rituximab and chemotherapy in people with large B-cell lymphoma.

All study drugs, including odronextamab, will be administered by intravenous infusion, and participants will be followed for up to 5 years. Research centers across eight US states and Australia, Czechia, France, Italy, Poland, Spain, Turkey, and Thailand are currently accepting participants for the three trials. The primary outcomes are various measures of toxicity and complete response at 30 months in the follicular lymphoma studies and toxicity and progression-free survival in large B-cell lymphoma. All three trials are measuring overall survival and QoL as secondary endpoints.

Previously untreated stage II, III, or IV follicular lymphoma. Adults with this type of cancer may be eligible to participate in a randomized, open-label, phase 3 study testing whether an experimental therapy called epcoritamab (from AbbVie) improves disease response and is tolerable when added to standard therapy. For up to 120 weeks, one group of participants will receive a combination of intravenous rituximab and oral lenalidomide (Revlimid), while a second group will also receive subcutaneous injections of epcoritamab. Some participants may be offered investigators’ choice of chemotherapy as well.

Sites across Iowa, Maryland, Missouri, Ohio, Washington, and Montana started welcoming their 900 participants in February 2024. The primary outcome is complete response at 30 months. Overall survival and QoL are secondary outcomes. More details at clinicaltrials.gov.

Relapsed or refractory mantle cell lymphoma. Adults facing one of these clinical scenarios can join an Academic and Community Cancer Research United open label, phase 2 trial examining the effectiveness of combining tafasitamab (Monjuvi), lenalidomide, and venetoclax (Venclexta) for such patients.

Frontline therapy does not cure mantle cell lymphoma, and continued relapses are common. In this situation, treatments can include acalabrutinib, ibrutinib, stem cell transplantation, venetoclax, lenalidomide, and rituximab.

In this study, participants will take venetoclax and lenalidomide daily and receive intravenous tafasitamab every 2 weeks after an initial ramp-up period as per clinic standards. Participants will be followed for 5 years after entering the trial. The Mayo Clinic in Rochester, Minnesota, began recruiting the planned 100 trial participants in January 2024. The primary outcome is objective response rate; overall survival is a secondary outcome, and QoL will not be tracked. More details at clinicaltrials.gov.

All trial information is from the National Institutes of Health US National Library of Medicine (online at clinicaltrials.gov).

A version of this article appeared on Medscape.com .

Several clinical trials in leukemia and lymphoma have started enrolling recently. Maybe one of your patients could benefit from taking part?

Hematological malignancy scheduled for a human leukocyte antigen–mismatched unrelated donor transplant. Adult patients in this situation who are younger than 66 years may be eligible for a randomized, open-label, phase 2 study run by the Center for International Blood and Bone Marrow Transplant Research.

The purpose of the study is to test whether cyclophosphamide, which is given to prevent a dreaded complication of stem cell transplantation called graft-versus-host disease, can be safely reduced without increasing infection or reducing protection. All participants will receive cyclophosphamide on days 3 and 4 post transplant. One group will receive a reduced dose of cyclophosphamide (25 mg/kg per dose), and the other will be given a usual dose (37.5 mg/kg).

Sites in Michigan, Missouri, Oregon, Virginia, and Washington started recruiting for 190 participants in December 2023. Study centers in Florida, Massachusetts, New York, and Wisconsin are also planned. Infection-free survival is the primary endpoint, and overall survival is a secondary measure. Quality of life (QoL) is not recorded. More details at clinicaltrials.gov.

Untreated chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL). Adults who are newly diagnosed with this type of cancer and have active disease may wish to consider a randomized, open-label, phase 3 trial testing an experimental Bruton tyrosine kinase (BTK) inhibitor, nemtabrutinib (from Merck Sharp & Dohme), against standard-of-care BTK inhibitors ibrutinib (Imbruvica) and acalabrutinib (Calquence).

BTK inhibitors target B-cell proliferation in B-cell cancers such as CLL/SLL and allow for chemotherapy-free treatment of some hematological malignancies. In this study, until disease progression, unacceptable toxicity, or another reason for discontinuation occurs, participants will take daily oral nemtabrutinib, ibrutinib, or acalabrutinib.

The study opened in December 2023 in Pennsylvania, Washington, Taiwan, Israel, and the United Kingdom seeking 1200 participants. The primary outcomes are objective response rate and progression-free survival. Overall survival is a secondary outcome, and QoL is not measured. More details at clinicaltrials.gov.

Relapsed or refractory leukemia with a KMT2A-gene rearrangement (KMT2A-r). Children aged 1 month to younger than 6 years with this diagnosis may be able to join an open-label, nonrandomized, Children’s Oncology Group phase 2 study to determine the most tolerable and/or effective dose of an experimental oral drug called revumenib when added to chemotherapy.

KMT2A-gene alterations are associated with a poor prognosis in leukemia. These alterations cause blood cells to dedifferentiate and start proliferating uncontrollably as leukemia cells. The expression of the damaged KMT2A gene relies on a protein called menin. Revumenib, from Syndax Pharmaceuticals, blocks menin and prevents expression of KMT2A.

Children in the study will receive two different regimens of revumenib in combination with chemotherapy for up to a year, or until disease progression or unacceptable toxicity, and will then be followed for up to 5 years. Trial centers in 12 US states opened their doors in January 2024 looking for 78 participants. Toxicities and minimal residual disease are the primary outcomes; overall survival is a secondary outcome, and QoL is not assessed. More details at clinicaltrials.gov.

Previously untreated follicular lymphoma or diffuse large B-cell lymphoma. Adults with one of these types of lymphoma may be eligible for one of three open-label, randomized, phase 3 trials testing odronextamab (from Regeneron). This bispecific antibody is designed to ‘lock together’ CD20 on cancer cells with CD3-expressing cancer-killing T cells. It has shown anti-lymphoma activity in heavily pretreated patients.

Late in 2023, three phase 3 trials turned the spotlight on treatment-naive patients and started recruiting 2115 participants to assess odronextamab in this setting. The trial OLYMPIA-1 will compare odronextamab with standard-of-care rituximab (Rituxan) plus chemotherapy in follicular lymphoma. OLYMPIA-2 will test the drug in combination with chemotherapy, also in follicular lymphoma. OLYMPIA-3 will evaluate odronextamab plus chemotherapy against rituximab and chemotherapy in people with large B-cell lymphoma.

All study drugs, including odronextamab, will be administered by intravenous infusion, and participants will be followed for up to 5 years. Research centers across eight US states and Australia, Czechia, France, Italy, Poland, Spain, Turkey, and Thailand are currently accepting participants for the three trials. The primary outcomes are various measures of toxicity and complete response at 30 months in the follicular lymphoma studies and toxicity and progression-free survival in large B-cell lymphoma. All three trials are measuring overall survival and QoL as secondary endpoints.

Previously untreated stage II, III, or IV follicular lymphoma. Adults with this type of cancer may be eligible to participate in a randomized, open-label, phase 3 study testing whether an experimental therapy called epcoritamab (from AbbVie) improves disease response and is tolerable when added to standard therapy. For up to 120 weeks, one group of participants will receive a combination of intravenous rituximab and oral lenalidomide (Revlimid), while a second group will also receive subcutaneous injections of epcoritamab. Some participants may be offered investigators’ choice of chemotherapy as well.

Sites across Iowa, Maryland, Missouri, Ohio, Washington, and Montana started welcoming their 900 participants in February 2024. The primary outcome is complete response at 30 months. Overall survival and QoL are secondary outcomes. More details at clinicaltrials.gov.

Relapsed or refractory mantle cell lymphoma. Adults facing one of these clinical scenarios can join an Academic and Community Cancer Research United open label, phase 2 trial examining the effectiveness of combining tafasitamab (Monjuvi), lenalidomide, and venetoclax (Venclexta) for such patients.

Frontline therapy does not cure mantle cell lymphoma, and continued relapses are common. In this situation, treatments can include acalabrutinib, ibrutinib, stem cell transplantation, venetoclax, lenalidomide, and rituximab.

In this study, participants will take venetoclax and lenalidomide daily and receive intravenous tafasitamab every 2 weeks after an initial ramp-up period as per clinic standards. Participants will be followed for 5 years after entering the trial. The Mayo Clinic in Rochester, Minnesota, began recruiting the planned 100 trial participants in January 2024. The primary outcome is objective response rate; overall survival is a secondary outcome, and QoL will not be tracked. More details at clinicaltrials.gov.

All trial information is from the National Institutes of Health US National Library of Medicine (online at clinicaltrials.gov).

A version of this article appeared on Medscape.com .

Several new clinical trials in gynecologic cancers have started enrolling recently. Perhaps one of your patients is eligible to take part?

Persistent or recurrent endometrial cancer or any advanced solid gynecologic tumor with appropriate ATR mutations. Patients with one of these diagnoses may be eligible to join a phase 2, randomized, open-label study of an experimental drug called ART0380. ART0380 inhibits the ability of cancer cells to repair DNA damage by targeting a DNA repair kinase called ATR (ataxia telangiectasia–mutated and Rad3-related) protein, which is faulty in some tumors. The hope is that ART0380 will overwhelm the inadequate DNA repair processes of these cancer cells while sparing the more robust DNA repair in healthy cells. 

All participants in the trial will take daily oral ART0380 until disease progression, withdrawal of consent, or unacceptable toxicity, whichever happens first. Some individuals will receive the treatment for 3 weeks out of every 4. Sites in California, Illinois, Massachusetts, New York, Oklahoma, Pennsylvania, Rhode Island, and France started recruiting 60 participants with endometrial cancer or any solid tumor in September 2023. The primary outcome is objective response rate. Overall survival is a secondary measure and quality of life (QOL) is not assessed. More details at ClinicalTrials.gov

Maurie Markman, MD, president of medicine and science at City of Hope, Atlanta, who is not involved in this trial, explained that because “ a meaningful proportion of this population may have a defect in this DNA repair mechanism,” this hypothesis seems “worthy of clinical exploration.” 

Cancer of the endometrium, cervix, vagina, or vulva. Women with one of these types of cancer who can read and understand English or Spanish can join a randomized, open-label phase 2 trial to determine whether Reiki therapy can reduce pain and distress associated with brachytherapy. 

Reiki is a complementary therapy that involves a Reiki practitioner holding their hands lightly on or above the patient’s body for several minutes. Some hospitals in the US and the UK offer Reiki as a relaxation aid, although high-quality science is lacking.

In this study, one group of participants will each undergo Reiki in a quiet clinic room during the lengthy waiting period between placement of the vaginal cylinder and infusion of the radiation source, which is a time of anxiety and discomfort for many women. A second group of women will simply lie and wait in a clinic room, if desired accompanied by a friend or family member. 

The Huntsman Cancer Institute, Salt Lake City, Utah, started recruiting its 68 participants in October 2023. The primary outcome is self-reported anxiety. The secondary outcomes are other validated measures of anxiety, pain, and depression. Overall survival and broader measures of QOL will not be assessed. More details at ClinicalTrials.gov

Dr. Markman said that the benefits of Reiki may be “nothing more than a placebo effect.” But he highlighted the novelty of conducting a randomized trial to scientifically test Reiki’s “widely applied (without any real evidence) ‘integrative medicine’ approach to symptom management.”

Unresectable or metastatic endometrial cancer with deficient mismatch repair /high microsatellite instability. People in this clinical situation whose disease has progressed after one or two lines of prior chemotherapy, including platinum-based treatment, may be interested in an open-label nonrandomized, phase 2 investigation of bispecific antibody acasunlimab in combination with pembrolizumab (Keytruda). 

Acasunlimab stimulates T-cell antitumor activity as well as blocking programmed death ligand 1 (PD-L1) and is being tested in several types of solid-tumor cancer. For up to 2 years, all participants will receive intravenous (IV) infusions of the drug combination. Study sites in Florida and Europe opened in January 2024, ready for 80 participants. The primary outcome is objective response rate. Overall survival will not be assessed. More details at ClinicalTrials.gov

“In the absence of a randomized population to compare treatment outcomes, the results of this trial will likely provide limited data upon which to determine the clinical benefits of this novel drug combination strategy,” said Dr. Markman. However, he added, “the results will be helpful in assessing the potential toxicity of this approach.”

Recurrent or metastatic endometrial cancer with proficient mismatch repair. Women with this diagnosis who have progressed after one prior platinum chemotherapy regimen in any setting may wish to consider a randomized, triple-blind, phase 2 trial of pembrolizumab plus favezelimab. Favezelimab, which blocks the lymphocyte activation gene 3 (LAG3), appears to boost the antitumor activity of programmed cell death protein 1 (PD-1) inhibition in other cancers such as classic Hodgkin lymphoma. 

In the trial, participants will be assigned to one of four groups. One group will receive 17 doses of the combination treatment IV every 3 weeks — three doses in the neoadjuvant period and 14 as adjuvant therapy. A second group of individuals will receive IV pembrolizumab monotherapy on the same schedule. A third will be given up to 35 doses of the combo therapy every 3 weeks plus a daily capsule of lenvatinib (Lenvima). The fourth group will receive 35 doses of pembrolizumab plus daily lenvatinib. 

Sites in North Carolina, New Jersey, Pennsylvania, and four countries other than the US started recruiting 60 participants with a solid tumor in September 2023. Pathologic complete response and objective response rate are the primary endpoints. Overall survival over approximately 3.5 years is a secondary endpoint, and QOL will not be measured. More details at ClinicalTrials.gov

Unresectable advanced or metastatic HER2-positive endometrial or ovarian cancer. Adults with one of these diagnoses in whom failed platinum-based therapy has failed may enroll in an open-label, phase 2 study to see whether their disease will respond to the antibody-drug conjugate disitamab vedotin. Everyone in the trial will receive IV disitamab vedotin every 2 weeks for up to approximately 5 years. 

Study sites in California, Connecticut, Michigan, Minnesota, Montana, New York, Ohio, Texas, and Canada began welcoming their 190 participants with one of a range of solid cancers in November 2023. The primary outcome is objective response rate. Overall survival is a secondary measure and QOL will not be tracked. More details at ClinicalTrials.gov

High-risk locally advanced cervical cancer. Girls and women older than 14 years with this cancer that has not progressed after platinum-based chemoradiation are sought for a randomized, quadruple-blind, phase 3 trial to determine whether the investigational immunotherapy volrustomig can slow disease progression. Volrustomig targets PD-1 and cytotoxic T lymphocyte protein 4 (CTLA4) and is being tested in a wide range of solid cancers. 

For approximately 3 years or until disease progression or death, whichever happens first, half of participants will receive IV infusions of volrustomig while the others will receive saline. Asian research sites started seeking the study’s 1000 participants in September 2023, while centers in 12 US states and eight other countries are gearing up for patient enrollment. Progression-free survival in participants with PD-L1 expression is the primary endpoint; overall survival and QOL are secondary endpoints. More details at ClinicalTrials.gov

All trial information is from the National Institutes of Health US National Library of Medicine (online at ClinicalTrials.gov). Dr. Markman declared he is not involved with these trials.

A version of this article appeared on Medscape.com .

Several new clinical trials in gynecologic cancers have started enrolling recently. Perhaps one of your patients is eligible to take part?

Persistent or recurrent endometrial cancer or any advanced solid gynecologic tumor with appropriate ATR mutations. Patients with one of these diagnoses may be eligible to join a phase 2, randomized, open-label study of an experimental drug called ART0380. ART0380 inhibits the ability of cancer cells to repair DNA damage by targeting a DNA repair kinase called ATR (ataxia telangiectasia–mutated and Rad3-related) protein, which is faulty in some tumors. The hope is that ART0380 will overwhelm the inadequate DNA repair processes of these cancer cells while sparing the more robust DNA repair in healthy cells. 

All participants in the trial will take daily oral ART0380 until disease progression, withdrawal of consent, or unacceptable toxicity, whichever happens first. Some individuals will receive the treatment for 3 weeks out of every 4. Sites in California, Illinois, Massachusetts, New York, Oklahoma, Pennsylvania, Rhode Island, and France started recruiting 60 participants with endometrial cancer or any solid tumor in September 2023. The primary outcome is objective response rate. Overall survival is a secondary measure and quality of life (QOL) is not assessed. More details at ClinicalTrials.gov

Maurie Markman, MD, president of medicine and science at City of Hope, Atlanta, who is not involved in this trial, explained that because “ a meaningful proportion of this population may have a defect in this DNA repair mechanism,” this hypothesis seems “worthy of clinical exploration.” 

Cancer of the endometrium, cervix, vagina, or vulva. Women with one of these types of cancer who can read and understand English or Spanish can join a randomized, open-label phase 2 trial to determine whether Reiki therapy can reduce pain and distress associated with brachytherapy. 

Reiki is a complementary therapy that involves a Reiki practitioner holding their hands lightly on or above the patient’s body for several minutes. Some hospitals in the US and the UK offer Reiki as a relaxation aid, although high-quality science is lacking.

In this study, one group of participants will each undergo Reiki in a quiet clinic room during the lengthy waiting period between placement of the vaginal cylinder and infusion of the radiation source, which is a time of anxiety and discomfort for many women. A second group of women will simply lie and wait in a clinic room, if desired accompanied by a friend or family member. 

The Huntsman Cancer Institute, Salt Lake City, Utah, started recruiting its 68 participants in October 2023. The primary outcome is self-reported anxiety. The secondary outcomes are other validated measures of anxiety, pain, and depression. Overall survival and broader measures of QOL will not be assessed. More details at ClinicalTrials.gov

Dr. Markman said that the benefits of Reiki may be “nothing more than a placebo effect.” But he highlighted the novelty of conducting a randomized trial to scientifically test Reiki’s “widely applied (without any real evidence) ‘integrative medicine’ approach to symptom management.”

Unresectable or metastatic endometrial cancer with deficient mismatch repair /high microsatellite instability. People in this clinical situation whose disease has progressed after one or two lines of prior chemotherapy, including platinum-based treatment, may be interested in an open-label nonrandomized, phase 2 investigation of bispecific antibody acasunlimab in combination with pembrolizumab (Keytruda). 

Acasunlimab stimulates T-cell antitumor activity as well as blocking programmed death ligand 1 (PD-L1) and is being tested in several types of solid-tumor cancer. For up to 2 years, all participants will receive intravenous (IV) infusions of the drug combination. Study sites in Florida and Europe opened in January 2024, ready for 80 participants. The primary outcome is objective response rate. Overall survival will not be assessed. More details at ClinicalTrials.gov

“In the absence of a randomized population to compare treatment outcomes, the results of this trial will likely provide limited data upon which to determine the clinical benefits of this novel drug combination strategy,” said Dr. Markman. However, he added, “the results will be helpful in assessing the potential toxicity of this approach.”

Recurrent or metastatic endometrial cancer with proficient mismatch repair. Women with this diagnosis who have progressed after one prior platinum chemotherapy regimen in any setting may wish to consider a randomized, triple-blind, phase 2 trial of pembrolizumab plus favezelimab. Favezelimab, which blocks the lymphocyte activation gene 3 (LAG3), appears to boost the antitumor activity of programmed cell death protein 1 (PD-1) inhibition in other cancers such as classic Hodgkin lymphoma. 

In the trial, participants will be assigned to one of four groups. One group will receive 17 doses of the combination treatment IV every 3 weeks — three doses in the neoadjuvant period and 14 as adjuvant therapy. A second group of individuals will receive IV pembrolizumab monotherapy on the same schedule. A third will be given up to 35 doses of the combo therapy every 3 weeks plus a daily capsule of lenvatinib (Lenvima). The fourth group will receive 35 doses of pembrolizumab plus daily lenvatinib. 

Sites in North Carolina, New Jersey, Pennsylvania, and four countries other than the US started recruiting 60 participants with a solid tumor in September 2023. Pathologic complete response and objective response rate are the primary endpoints. Overall survival over approximately 3.5 years is a secondary endpoint, and QOL will not be measured. More details at ClinicalTrials.gov

Unresectable advanced or metastatic HER2-positive endometrial or ovarian cancer. Adults with one of these diagnoses in whom failed platinum-based therapy has failed may enroll in an open-label, phase 2 study to see whether their disease will respond to the antibody-drug conjugate disitamab vedotin. Everyone in the trial will receive IV disitamab vedotin every 2 weeks for up to approximately 5 years. 

Study sites in California, Connecticut, Michigan, Minnesota, Montana, New York, Ohio, Texas, and Canada began welcoming their 190 participants with one of a range of solid cancers in November 2023. The primary outcome is objective response rate. Overall survival is a secondary measure and QOL will not be tracked. More details at ClinicalTrials.gov

High-risk locally advanced cervical cancer. Girls and women older than 14 years with this cancer that has not progressed after platinum-based chemoradiation are sought for a randomized, quadruple-blind, phase 3 trial to determine whether the investigational immunotherapy volrustomig can slow disease progression. Volrustomig targets PD-1 and cytotoxic T lymphocyte protein 4 (CTLA4) and is being tested in a wide range of solid cancers. 

For approximately 3 years or until disease progression or death, whichever happens first, half of participants will receive IV infusions of volrustomig while the others will receive saline. Asian research sites started seeking the study’s 1000 participants in September 2023, while centers in 12 US states and eight other countries are gearing up for patient enrollment. Progression-free survival in participants with PD-L1 expression is the primary endpoint; overall survival and QOL are secondary endpoints. More details at ClinicalTrials.gov

All trial information is from the National Institutes of Health US National Library of Medicine (online at ClinicalTrials.gov). Dr. Markman declared he is not involved with these trials.

A version of this article appeared on Medscape.com .

Several new clinical trials in gynecologic cancers have started enrolling recently. Perhaps one of your patients is eligible to take part?

Persistent or recurrent endometrial cancer or any advanced solid gynecologic tumor with appropriate ATR mutations. Patients with one of these diagnoses may be eligible to join a phase 2, randomized, open-label study of an experimental drug called ART0380. ART0380 inhibits the ability of cancer cells to repair DNA damage by targeting a DNA repair kinase called ATR (ataxia telangiectasia–mutated and Rad3-related) protein, which is faulty in some tumors. The hope is that ART0380 will overwhelm the inadequate DNA repair processes of these cancer cells while sparing the more robust DNA repair in healthy cells. 

All participants in the trial will take daily oral ART0380 until disease progression, withdrawal of consent, or unacceptable toxicity, whichever happens first. Some individuals will receive the treatment for 3 weeks out of every 4. Sites in California, Illinois, Massachusetts, New York, Oklahoma, Pennsylvania, Rhode Island, and France started recruiting 60 participants with endometrial cancer or any solid tumor in September 2023. The primary outcome is objective response rate. Overall survival is a secondary measure and quality of life (QOL) is not assessed. More details at ClinicalTrials.gov

Maurie Markman, MD, president of medicine and science at City of Hope, Atlanta, who is not involved in this trial, explained that because “ a meaningful proportion of this population may have a defect in this DNA repair mechanism,” this hypothesis seems “worthy of clinical exploration.” 

Cancer of the endometrium, cervix, vagina, or vulva. Women with one of these types of cancer who can read and understand English or Spanish can join a randomized, open-label phase 2 trial to determine whether Reiki therapy can reduce pain and distress associated with brachytherapy. 

Reiki is a complementary therapy that involves a Reiki practitioner holding their hands lightly on or above the patient’s body for several minutes. Some hospitals in the US and the UK offer Reiki as a relaxation aid, although high-quality science is lacking.

In this study, one group of participants will each undergo Reiki in a quiet clinic room during the lengthy waiting period between placement of the vaginal cylinder and infusion of the radiation source, which is a time of anxiety and discomfort for many women. A second group of women will simply lie and wait in a clinic room, if desired accompanied by a friend or family member. 

The Huntsman Cancer Institute, Salt Lake City, Utah, started recruiting its 68 participants in October 2023. The primary outcome is self-reported anxiety. The secondary outcomes are other validated measures of anxiety, pain, and depression. Overall survival and broader measures of QOL will not be assessed. More details at ClinicalTrials.gov

Dr. Markman said that the benefits of Reiki may be “nothing more than a placebo effect.” But he highlighted the novelty of conducting a randomized trial to scientifically test Reiki’s “widely applied (without any real evidence) ‘integrative medicine’ approach to symptom management.”

Unresectable or metastatic endometrial cancer with deficient mismatch repair /high microsatellite instability. People in this clinical situation whose disease has progressed after one or two lines of prior chemotherapy, including platinum-based treatment, may be interested in an open-label nonrandomized, phase 2 investigation of bispecific antibody acasunlimab in combination with pembrolizumab (Keytruda). 

Acasunlimab stimulates T-cell antitumor activity as well as blocking programmed death ligand 1 (PD-L1) and is being tested in several types of solid-tumor cancer. For up to 2 years, all participants will receive intravenous (IV) infusions of the drug combination. Study sites in Florida and Europe opened in January 2024, ready for 80 participants. The primary outcome is objective response rate. Overall survival will not be assessed. More details at ClinicalTrials.gov

“In the absence of a randomized population to compare treatment outcomes, the results of this trial will likely provide limited data upon which to determine the clinical benefits of this novel drug combination strategy,” said Dr. Markman. However, he added, “the results will be helpful in assessing the potential toxicity of this approach.”

Recurrent or metastatic endometrial cancer with proficient mismatch repair. Women with this diagnosis who have progressed after one prior platinum chemotherapy regimen in any setting may wish to consider a randomized, triple-blind, phase 2 trial of pembrolizumab plus favezelimab. Favezelimab, which blocks the lymphocyte activation gene 3 (LAG3), appears to boost the antitumor activity of programmed cell death protein 1 (PD-1) inhibition in other cancers such as classic Hodgkin lymphoma. 

In the trial, participants will be assigned to one of four groups. One group will receive 17 doses of the combination treatment IV every 3 weeks — three doses in the neoadjuvant period and 14 as adjuvant therapy. A second group of individuals will receive IV pembrolizumab monotherapy on the same schedule. A third will be given up to 35 doses of the combo therapy every 3 weeks plus a daily capsule of lenvatinib (Lenvima). The fourth group will receive 35 doses of pembrolizumab plus daily lenvatinib. 

Sites in North Carolina, New Jersey, Pennsylvania, and four countries other than the US started recruiting 60 participants with a solid tumor in September 2023. Pathologic complete response and objective response rate are the primary endpoints. Overall survival over approximately 3.5 years is a secondary endpoint, and QOL will not be measured. More details at ClinicalTrials.gov

Unresectable advanced or metastatic HER2-positive endometrial or ovarian cancer. Adults with one of these diagnoses in whom failed platinum-based therapy has failed may enroll in an open-label, phase 2 study to see whether their disease will respond to the antibody-drug conjugate disitamab vedotin. Everyone in the trial will receive IV disitamab vedotin every 2 weeks for up to approximately 5 years. 

Study sites in California, Connecticut, Michigan, Minnesota, Montana, New York, Ohio, Texas, and Canada began welcoming their 190 participants with one of a range of solid cancers in November 2023. The primary outcome is objective response rate. Overall survival is a secondary measure and QOL will not be tracked. More details at ClinicalTrials.gov

High-risk locally advanced cervical cancer. Girls and women older than 14 years with this cancer that has not progressed after platinum-based chemoradiation are sought for a randomized, quadruple-blind, phase 3 trial to determine whether the investigational immunotherapy volrustomig can slow disease progression. Volrustomig targets PD-1 and cytotoxic T lymphocyte protein 4 (CTLA4) and is being tested in a wide range of solid cancers. 

For approximately 3 years or until disease progression or death, whichever happens first, half of participants will receive IV infusions of volrustomig while the others will receive saline. Asian research sites started seeking the study’s 1000 participants in September 2023, while centers in 12 US states and eight other countries are gearing up for patient enrollment. Progression-free survival in participants with PD-L1 expression is the primary endpoint; overall survival and QOL are secondary endpoints. More details at ClinicalTrials.gov

All trial information is from the National Institutes of Health US National Library of Medicine (online at ClinicalTrials.gov). Dr. Markman declared he is not involved with these trials.

A version of this article appeared on Medscape.com .

TOPLINE:

The frequency of follow-up after fertility-sparing surgery for cervical cancer can be tailored based on high-risk human papillomavirus (HPV) tests and cytology.

METHODOLOGY:

• Among patients with early-stage cervical cancer, the optimal follow-up strategy to detect recurrence after fertility-sparing surgery remains unclear. The authors wanted to find out if follow-up could be tailored to the patient’s risk for recurrence instead of using the current inefficient one-size-fits-all approach.
• The retrospective cohort study, which used data from the Netherlands Cancer Registry and the Dutch Nationwide Pathology Databank, included 1462 patients aged 18-40 years with early-stage cervical cancer who received fertility-sparing surgery (large loop excision of the transformation zone, conization, or trachelectomy) between 2000 and 2020.
• The primary endpoint was the cumulative incidence of recurrent cervical intraepithelial neoplasia grade 2 or worse (CIN2+), including recurrent cervical cancer.
• The authors stratified the likelihood of recurrence by cytology and high-risk HPV results at the first follow-up visit within 12 months of fertility-sparing surgery; they also compared the cumulative incidence of recurrence — the number of new cases divided by all at-risk individuals over a specific interval — at four timepoints in 2 years (6, 12, 18, and 24 months).

TAKEAWAY:

• Overall, the 10-year recurrence-free survival for CIN2+ was 89.3%. Patients with high-grade cytology at the first follow-up had worse 10-year recurrence-free survival for CIN2+ (43.1%) than those who had normal (92.1%) and low-grade cytology (84.6%). Similarly for HPV status, patients positive for high-risk HPV at the first follow-up had worse 10-year recurrence-free survival rates for CIN2+ (73.6%) than those negative for high-risk HPV (91.1%).
• Patients negative for both high-risk HPV and high-grade cytology 6-24 months after fertility-sparing surgery had a cumulative incidence of recurrence of 0.0%-0.7% within 6 months of follow-up compared with 0.0%-33.3% among patients negative for high-risk HPV but who had high-grade cytology.
• By contrast, patients positive for high-risk HPV but not high-grade cytology had a cumulative incidence of recurrence of 0.0%-15.4% within 6 months of any follow-up visit compared with 50.0%-100.0% among those with both high-risk HPV and high-grade cytology.
• Patients who remained free of high-risk HPV and high-grade cytology at their 6-month and 12-month follow-ups had no disease recurrence over the next 6 months.

IN PRACTICE:

“Patients who are negative for high-risk HPV with normal or low-grade cytology at 6-24 months after fertility-sparing surgery could be offered a prolonged follow-up interval of 6 months,” the authors concluded, adding that this “group comprises 80% of all patients receiving fertility-sparing surgery.”

“Reducing the number of follow-up visits, and subsequently the number of follow-up tests, in patients with low risk for recurrence on the basis of co-testing has the potential to substantially reduce healthcare costs,” the authors explained.

SOURCE:

The study, led by Teska N. Schuurman, MD, of the Netherlands Cancer Institute, Amsterdam, was published in the December 2023 issue of The Lancet Oncology.

LIMITATIONS:

The retrospective design of the study meant that analysis was limited to available records, so data on patients’ symptoms, physical examinations, or colposcopic findings were not available. Follow-up biopsies, considered the gold standard for diagnosing recurrence, are not routine in the Netherlands, so recurrence could have been underreported.

DISCLOSURES:

The authors declared no competing interests.
 

A version of this article appeared on Medscape.com.

TOPLINE:

The frequency of follow-up after fertility-sparing surgery for cervical cancer can be tailored based on high-risk human papillomavirus (HPV) tests and cytology.

METHODOLOGY:

• Among patients with early-stage cervical cancer, the optimal follow-up strategy to detect recurrence after fertility-sparing surgery remains unclear. The authors wanted to find out if follow-up could be tailored to the patient’s risk for recurrence instead of using the current inefficient one-size-fits-all approach.
• The retrospective cohort study, which used data from the Netherlands Cancer Registry and the Dutch Nationwide Pathology Databank, included 1462 patients aged 18-40 years with early-stage cervical cancer who received fertility-sparing surgery (large loop excision of the transformation zone, conization, or trachelectomy) between 2000 and 2020.
• The primary endpoint was the cumulative incidence of recurrent cervical intraepithelial neoplasia grade 2 or worse (CIN2+), including recurrent cervical cancer.
• The authors stratified the likelihood of recurrence by cytology and high-risk HPV results at the first follow-up visit within 12 months of fertility-sparing surgery; they also compared the cumulative incidence of recurrence — the number of new cases divided by all at-risk individuals over a specific interval — at four timepoints in 2 years (6, 12, 18, and 24 months).

TAKEAWAY:

• Overall, the 10-year recurrence-free survival for CIN2+ was 89.3%. Patients with high-grade cytology at the first follow-up had worse 10-year recurrence-free survival for CIN2+ (43.1%) than those who had normal (92.1%) and low-grade cytology (84.6%). Similarly for HPV status, patients positive for high-risk HPV at the first follow-up had worse 10-year recurrence-free survival rates for CIN2+ (73.6%) than those negative for high-risk HPV (91.1%).
• Patients negative for both high-risk HPV and high-grade cytology 6-24 months after fertility-sparing surgery had a cumulative incidence of recurrence of 0.0%-0.7% within 6 months of follow-up compared with 0.0%-33.3% among patients negative for high-risk HPV but who had high-grade cytology.
• By contrast, patients positive for high-risk HPV but not high-grade cytology had a cumulative incidence of recurrence of 0.0%-15.4% within 6 months of any follow-up visit compared with 50.0%-100.0% among those with both high-risk HPV and high-grade cytology.
• Patients who remained free of high-risk HPV and high-grade cytology at their 6-month and 12-month follow-ups had no disease recurrence over the next 6 months.

IN PRACTICE:

“Patients who are negative for high-risk HPV with normal or low-grade cytology at 6-24 months after fertility-sparing surgery could be offered a prolonged follow-up interval of 6 months,” the authors concluded, adding that this “group comprises 80% of all patients receiving fertility-sparing surgery.”

“Reducing the number of follow-up visits, and subsequently the number of follow-up tests, in patients with low risk for recurrence on the basis of co-testing has the potential to substantially reduce healthcare costs,” the authors explained.

SOURCE:

The study, led by Teska N. Schuurman, MD, of the Netherlands Cancer Institute, Amsterdam, was published in the December 2023 issue of The Lancet Oncology.

LIMITATIONS:

The retrospective design of the study meant that analysis was limited to available records, so data on patients’ symptoms, physical examinations, or colposcopic findings were not available. Follow-up biopsies, considered the gold standard for diagnosing recurrence, are not routine in the Netherlands, so recurrence could have been underreported.

DISCLOSURES:

The authors declared no competing interests.
 

A version of this article appeared on Medscape.com.

TOPLINE:

The frequency of follow-up after fertility-sparing surgery for cervical cancer can be tailored based on high-risk human papillomavirus (HPV) tests and cytology.

METHODOLOGY:

• Among patients with early-stage cervical cancer, the optimal follow-up strategy to detect recurrence after fertility-sparing surgery remains unclear. The authors wanted to find out if follow-up could be tailored to the patient’s risk for recurrence instead of using the current inefficient one-size-fits-all approach.
• The retrospective cohort study, which used data from the Netherlands Cancer Registry and the Dutch Nationwide Pathology Databank, included 1462 patients aged 18-40 years with early-stage cervical cancer who received fertility-sparing surgery (large loop excision of the transformation zone, conization, or trachelectomy) between 2000 and 2020.
• The primary endpoint was the cumulative incidence of recurrent cervical intraepithelial neoplasia grade 2 or worse (CIN2+), including recurrent cervical cancer.
• The authors stratified the likelihood of recurrence by cytology and high-risk HPV results at the first follow-up visit within 12 months of fertility-sparing surgery; they also compared the cumulative incidence of recurrence — the number of new cases divided by all at-risk individuals over a specific interval — at four timepoints in 2 years (6, 12, 18, and 24 months).

TAKEAWAY:

• Overall, the 10-year recurrence-free survival for CIN2+ was 89.3%. Patients with high-grade cytology at the first follow-up had worse 10-year recurrence-free survival for CIN2+ (43.1%) than those who had normal (92.1%) and low-grade cytology (84.6%). Similarly for HPV status, patients positive for high-risk HPV at the first follow-up had worse 10-year recurrence-free survival rates for CIN2+ (73.6%) than those negative for high-risk HPV (91.1%).
• Patients negative for both high-risk HPV and high-grade cytology 6-24 months after fertility-sparing surgery had a cumulative incidence of recurrence of 0.0%-0.7% within 6 months of follow-up compared with 0.0%-33.3% among patients negative for high-risk HPV but who had high-grade cytology.
• By contrast, patients positive for high-risk HPV but not high-grade cytology had a cumulative incidence of recurrence of 0.0%-15.4% within 6 months of any follow-up visit compared with 50.0%-100.0% among those with both high-risk HPV and high-grade cytology.
• Patients who remained free of high-risk HPV and high-grade cytology at their 6-month and 12-month follow-ups had no disease recurrence over the next 6 months.

IN PRACTICE:

“Patients who are negative for high-risk HPV with normal or low-grade cytology at 6-24 months after fertility-sparing surgery could be offered a prolonged follow-up interval of 6 months,” the authors concluded, adding that this “group comprises 80% of all patients receiving fertility-sparing surgery.”

“Reducing the number of follow-up visits, and subsequently the number of follow-up tests, in patients with low risk for recurrence on the basis of co-testing has the potential to substantially reduce healthcare costs,” the authors explained.

SOURCE:

The study, led by Teska N. Schuurman, MD, of the Netherlands Cancer Institute, Amsterdam, was published in the December 2023 issue of The Lancet Oncology.

LIMITATIONS:

The retrospective design of the study meant that analysis was limited to available records, so data on patients’ symptoms, physical examinations, or colposcopic findings were not available. Follow-up biopsies, considered the gold standard for diagnosing recurrence, are not routine in the Netherlands, so recurrence could have been underreported.

DISCLOSURES:

The authors declared no competing interests.
 

A version of this article appeared on Medscape.com.

Too much or too little sleep, daytime naps, and other sleep patterns may increase the risk of developing esophageal adenocarcinoma (EAC) and esophageal squamous cell carcinoma (ESCC), suggest researchers at Washington University, St. Louis.

In their prospective study, the team found that individuals who slept more than 9 hours a night had double the risk of getting EAC after 2 or more years (hazard ratio, 2.06) compared with a person sleeping a “standard” 7 hours a night.

Conversely, people who slept fewer than 6 hours were 21% more likely to be diagnosed with EAC and 63% more likely to get ESCC after 2 years.

The research team, led by Yin Cao, ScD, associate professor of surgery, mined UK Biobank data between 2006 and 2016 for the sleep habits of 393,114 people, then followed them for up to 10 years to see how many developed esophageal cancer. During this time, 294 people developed EAC, and 95 were diagnosed with ESCC.

The study was published in Cancer, Epidemiology Biomarkers and Prevention.

Dr. Cao said that she and her team decided to conduct the study because they were intrigued by evidence suggesting a link between shorter sleep duration with ESCC and Barrett esophagus, the precursor of EAC. “Yet other sleep behaviours [had] not been comprehensively evaluated,” Dr. Cao said.

The team also assessed daytime sleep behavior. They found that taking daytime naps or experiencing sleepiness did not bode well down the road with regard to esophageal cancer, depending on the type of cancer. Individuals who “sometimes” took daytime naps were at 39% increased risk of EAC, and those who “usually” experienced sleepiness during the day had twice the risk of ESCC after 2 years.

Chronotype, a person’s natural rhythm of daytime sleepiness, also appeared to play a role. For example, being an “evening person” increased the risk of EAC by 32% and almost tripled the risk of ESCC compared to being a “morning person.”

Neither snoring nor insomnia affected the risk of either type of esophageal cancer.

Dr. Cao was surprised that both short and long sleep duration, napping, and daytime sleepiness turned out to be risk factors for esophageal cancer.

The mechanisms underlying these associations are “likely complex,” she said, adding that different aspects of sleep behavior might be driving cancer through differing routes.

“Disruption of circadian physiology could result in gastroesophageal reflux disease (GERD), the most important risk factor for EAC, via altering the expression of circadian-clock genes in esophagus tissue or reducing the expression of melatonin,” said Dr. Cao. “Both excess sleep and sleep deprivation might relate to immune dysfunction, which might lead to an increased susceptibility to esophageal cancer.”

In an interview, when asked whether other, simpler explanations were possible, Dr. Cao acknowledged that other associations were a potential source of confusion. For example, obesity is known to affect both quality of sleep and cancer risk. Dr. Cao said in their analyses, the team adjusted for a myriad of likely confounders, such as sex, smoking status, and shift-work status, in addition to body mass index and the Townsend Deprivation Index, a poverty measure.

Another factor that could have muddied the results was reverse causation, the possibility that already-present esophageal cancer was causing fatigue and poor sleep patterns instead of the other way around. For this reason, Dr. Cao’s team conducted a separate analysis that excluded patients who were diagnosed with esophageal cancer during the first 2 years of follow-up. (Data from this separate analysis, available in the supplementary tables, were used for the current article.)

Dr. Cao concluded that her team’s data “may serve as modifying risk factors for esophageal adenoma carcinoma” but that “additional validation and mechanistic studies are needed.”

The study was supported by a National Institutes of Health grant. Dr. Cao has received personal fees from Geneoscopy outside the published work.

A version of this article originally appeared on Medscape.com.

Too much or too little sleep, daytime naps, and other sleep patterns may increase the risk of developing esophageal adenocarcinoma (EAC) and esophageal squamous cell carcinoma (ESCC), suggest researchers at Washington University, St. Louis.

In their prospective study, the team found that individuals who slept more than 9 hours a night had double the risk of getting EAC after 2 or more years (hazard ratio, 2.06) compared with a person sleeping a “standard” 7 hours a night.

Conversely, people who slept fewer than 6 hours were 21% more likely to be diagnosed with EAC and 63% more likely to get ESCC after 2 years.

The research team, led by Yin Cao, ScD, associate professor of surgery, mined UK Biobank data between 2006 and 2016 for the sleep habits of 393,114 people, then followed them for up to 10 years to see how many developed esophageal cancer. During this time, 294 people developed EAC, and 95 were diagnosed with ESCC.

The study was published in Cancer, Epidemiology Biomarkers and Prevention.

Dr. Cao said that she and her team decided to conduct the study because they were intrigued by evidence suggesting a link between shorter sleep duration with ESCC and Barrett esophagus, the precursor of EAC. “Yet other sleep behaviours [had] not been comprehensively evaluated,” Dr. Cao said.

The team also assessed daytime sleep behavior. They found that taking daytime naps or experiencing sleepiness did not bode well down the road with regard to esophageal cancer, depending on the type of cancer. Individuals who “sometimes” took daytime naps were at 39% increased risk of EAC, and those who “usually” experienced sleepiness during the day had twice the risk of ESCC after 2 years.

Chronotype, a person’s natural rhythm of daytime sleepiness, also appeared to play a role. For example, being an “evening person” increased the risk of EAC by 32% and almost tripled the risk of ESCC compared to being a “morning person.”

Neither snoring nor insomnia affected the risk of either type of esophageal cancer.

Dr. Cao was surprised that both short and long sleep duration, napping, and daytime sleepiness turned out to be risk factors for esophageal cancer.

The mechanisms underlying these associations are “likely complex,” she said, adding that different aspects of sleep behavior might be driving cancer through differing routes.

“Disruption of circadian physiology could result in gastroesophageal reflux disease (GERD), the most important risk factor for EAC, via altering the expression of circadian-clock genes in esophagus tissue or reducing the expression of melatonin,” said Dr. Cao. “Both excess sleep and sleep deprivation might relate to immune dysfunction, which might lead to an increased susceptibility to esophageal cancer.”

In an interview, when asked whether other, simpler explanations were possible, Dr. Cao acknowledged that other associations were a potential source of confusion. For example, obesity is known to affect both quality of sleep and cancer risk. Dr. Cao said in their analyses, the team adjusted for a myriad of likely confounders, such as sex, smoking status, and shift-work status, in addition to body mass index and the Townsend Deprivation Index, a poverty measure.

Another factor that could have muddied the results was reverse causation, the possibility that already-present esophageal cancer was causing fatigue and poor sleep patterns instead of the other way around. For this reason, Dr. Cao’s team conducted a separate analysis that excluded patients who were diagnosed with esophageal cancer during the first 2 years of follow-up. (Data from this separate analysis, available in the supplementary tables, were used for the current article.)

Dr. Cao concluded that her team’s data “may serve as modifying risk factors for esophageal adenoma carcinoma” but that “additional validation and mechanistic studies are needed.”

The study was supported by a National Institutes of Health grant. Dr. Cao has received personal fees from Geneoscopy outside the published work.

A version of this article originally appeared on Medscape.com.

Too much or too little sleep, daytime naps, and other sleep patterns may increase the risk of developing esophageal adenocarcinoma (EAC) and esophageal squamous cell carcinoma (ESCC), suggest researchers at Washington University, St. Louis.

In their prospective study, the team found that individuals who slept more than 9 hours a night had double the risk of getting EAC after 2 or more years (hazard ratio, 2.06) compared with a person sleeping a “standard” 7 hours a night.

Conversely, people who slept fewer than 6 hours were 21% more likely to be diagnosed with EAC and 63% more likely to get ESCC after 2 years.

The research team, led by Yin Cao, ScD, associate professor of surgery, mined UK Biobank data between 2006 and 2016 for the sleep habits of 393,114 people, then followed them for up to 10 years to see how many developed esophageal cancer. During this time, 294 people developed EAC, and 95 were diagnosed with ESCC.

The study was published in Cancer, Epidemiology Biomarkers and Prevention.

Dr. Cao said that she and her team decided to conduct the study because they were intrigued by evidence suggesting a link between shorter sleep duration with ESCC and Barrett esophagus, the precursor of EAC. “Yet other sleep behaviours [had] not been comprehensively evaluated,” Dr. Cao said.

The team also assessed daytime sleep behavior. They found that taking daytime naps or experiencing sleepiness did not bode well down the road with regard to esophageal cancer, depending on the type of cancer. Individuals who “sometimes” took daytime naps were at 39% increased risk of EAC, and those who “usually” experienced sleepiness during the day had twice the risk of ESCC after 2 years.

Chronotype, a person’s natural rhythm of daytime sleepiness, also appeared to play a role. For example, being an “evening person” increased the risk of EAC by 32% and almost tripled the risk of ESCC compared to being a “morning person.”

Neither snoring nor insomnia affected the risk of either type of esophageal cancer.

Dr. Cao was surprised that both short and long sleep duration, napping, and daytime sleepiness turned out to be risk factors for esophageal cancer.

The mechanisms underlying these associations are “likely complex,” she said, adding that different aspects of sleep behavior might be driving cancer through differing routes.

“Disruption of circadian physiology could result in gastroesophageal reflux disease (GERD), the most important risk factor for EAC, via altering the expression of circadian-clock genes in esophagus tissue or reducing the expression of melatonin,” said Dr. Cao. “Both excess sleep and sleep deprivation might relate to immune dysfunction, which might lead to an increased susceptibility to esophageal cancer.”

In an interview, when asked whether other, simpler explanations were possible, Dr. Cao acknowledged that other associations were a potential source of confusion. For example, obesity is known to affect both quality of sleep and cancer risk. Dr. Cao said in their analyses, the team adjusted for a myriad of likely confounders, such as sex, smoking status, and shift-work status, in addition to body mass index and the Townsend Deprivation Index, a poverty measure.

Another factor that could have muddied the results was reverse causation, the possibility that already-present esophageal cancer was causing fatigue and poor sleep patterns instead of the other way around. For this reason, Dr. Cao’s team conducted a separate analysis that excluded patients who were diagnosed with esophageal cancer during the first 2 years of follow-up. (Data from this separate analysis, available in the supplementary tables, were used for the current article.)

Dr. Cao concluded that her team’s data “may serve as modifying risk factors for esophageal adenoma carcinoma” but that “additional validation and mechanistic studies are needed.”

The study was supported by a National Institutes of Health grant. Dr. Cao has received personal fees from Geneoscopy outside the published work.

A version of this article originally appeared on Medscape.com.

“Did you love your wife?” asks a character in “Rose,” a book by Martin Cruz Smith.

“No, but she became a fact through perseverance,” the man replied.

Medicine also has such relationships, it seems – tentative ideas that turned into fact simply by existing long enough.

Age 65 as the cutoff for cervical screening may be one such example. It has existed for 27 years with limited science to back it up. That may soon change with the launch of a $3.3 million study that is being funded by the National Institutes of Health (NIH). The study is intended to provide a more solid foundation for the benefits and harms of cervical screening for women older than 65.

It’s an important issue: 20% of all cervical cancer cases are found in women who are older than 65. Most of these patients have late-stage disease, which can be fatal. In the United States, 35% of cervical cancer deaths occur after age 65. But women in this age group are usually no longer screened for cervical cancer.

Back in 1996, the U.S. Preventive Services Task Force recommended that for women at average risk with adequate prior screening, cervical screening should stop at the age of 65. This recommendation has been carried forward year after year and has been incorporated into several other guidelines.

For example, current guidelines from the American Cancer Society, the American College of Obstetricians and Gynecologists, and the USPSTF recommend that cervical screening stop at aged 65 for patients with adequate prior screening.

“Adequate screening” is defined as three consecutive normal Pap tests or two consecutive negative human papillomavirus tests or two consecutive negative co-tests within the prior 10 years, with the most recent screening within 5 years and with no precancerous lesions in the past 25 years.

This all sounds reasonable; however, for most women, medical records aren’t up to the task of providing a clean bill of cervical health over many decades.

Explained Sarah Feldman, MD, an associate professor in obstetrics, gynecology, and reproductive biology at Harvard Medical School, Boston: “You know, when a patient says to me at 65, ‘Should I continue screening?’ I say, ‘Do you have all your results?’ And they’ll say, ‘Well, I remember I had a sort of abnormal pap 15 years ago,’ and I say, ‘All right; well, who knows what that was?’ So I’ll continue screening.”

According to George Sawaya, MD, professor of obstetrics, gynecology, and reproductive sciences at the University of California, San Francisco, up to 60% of women do not meet the criteria to end screening at age 65. This means that each year in the United States, approximately 1.7 million women turn 65 and should, in theory, continue to undergo screening for cervical cancer.

Unfortunately, the evidence base for the harms and benefits of cervical screening after age 65 is almost nonexistent – at least by the current standards of evidence-based medicine.

“We need to be clear that we don’t really know the appropriateness of the screening after 65,” said Dr. Sawaya, “which is ironic, because cervical cancer screening is probably the most commonly implemented cancer screening test in the country because it starts so early and ends so late and it’s applied so frequently.”

Dr. Feldman agrees that the age 65 cutoff is “somewhat arbitrary.” She said, “Why don’t they want to consider it continuing past 65? I don’t really understand, I have to be honest with you.”

So what’s the scientific evidence backing up the 27-year-old recommendation?

In 2018, the USPSTF’s cervical-screening guidelines concluded “with moderate certainty that the benefits of screening in women older than 65 years who have had adequate prior screening and are not otherwise at high risk for cervical cancer do not outweigh the potential harms.”

This recommendation was based on a new decision model commissioned by the USPSTF. The model was needed because, as noted by the guidelines’ authors, “None of the screening trials enrolled women older than 65 years, so direct evidence on when to stop screening is not available.”

In 2020, the ACS carried out a fresh literature review and published its own recommendations. The ACS concluded that “the evidence for the effectiveness of screening beyond age 65 is limited, based solely on observational and modeling studies.”

As a result, the ACS assigned a “qualified recommendation” to the age-65 moratorium (defined as “less certainty about the balance of benefits and harms or about patients’ values and preferences”).

Most recently, the 2021 Updated Cervical Cancer Screening Guidelines, published by the American College of Obstetricians and Gynecologists, endorsed the recommendations of the USPSTF.

Dr. Sawaya said, “The whole issue about screening over 65 is complicated from a lot of perspectives. We don’t know a lot about the safety. We don’t really know a lot about patients’ perceptions of it. But we do know that there has to be an upper age limit after which screening is just simply imprudent.”

Dr. Sawaya acknowledges that there exists a “heck-why-not” attitude toward cervical screening after 65 among some physicians, given that the tests are quick and cheap and could save a life, but he sounds a note of caution.

“It’s like when we used to use old cameras: the film was cheap, but the developing was really expensive,” Dr. Sawaya said. “So it’s not necessarily about the tests being cheap, it’s about the cascade of events [that follow].”

Follow-up for cervical cancer can be more hazardous for a postmenopausal patient than for a younger woman, explained Dr. Sawaya, because the transformation zone of the cervix may be difficult to see on colposcopy. Instead of a straightforward 5-minute procedure in the doctor’s office, the older patient may need the operating room simply to provide the first biopsy.

In addition, treatments such as cone biopsy, loop excision, or ablation are also more worrying for older women, said Dr. Sawaya, “So you start thinking about the risks of anesthesia, you start thinking about the risks of bleeding and infection, etc. And these have not been well described in older people.”

To add to the uncertainty about the merits and risks of hunting out cervical cancer in older women, a lot has changed in women’s health since 1996.

Explained Dr. Sawaya, “This stake was put in the ground in 1996, ... but since that time, life expectancy has gained 5 years. So a logical person would say, ‘Oh, well, let’s just say it should be 70 now, right?’ [But] can we even use old studies to inform the current cohort of women who are entering this 65-year-and-older age group?”

To answer all these questions, a 5-year, $3.3 million study funded by the NIH through the National Cancer Institute is now underway.

The project, named Comparative Effectiveness Research to Validate and Improve Cervical Cancer Screening (CERVICCS 2), will be led by Dr. Sawaya and Michael Silverberg, PhD, associate director of the Behavioral Health, Aging and Infectious Diseases Section of Kaiser Permanente Northern California’s Division of Research.

Dr. Sawaya concluded: “There’s very few things that are packaged away and thought to be just the truth. And this is why we always have to be vigilant. ... And that’s what keeps science so interesting and exciting.”

Dr. Sawaya has disclosed no relevant financial relationships. Dr. Feldman writes for UpToDate and receives several NIH grants.

A version of this article first appeared on Medscape.com.

“Did you love your wife?” asks a character in “Rose,” a book by Martin Cruz Smith.

“No, but she became a fact through perseverance,” the man replied.

Medicine also has such relationships, it seems – tentative ideas that turned into fact simply by existing long enough.

Age 65 as the cutoff for cervical screening may be one such example. It has existed for 27 years with limited science to back it up. That may soon change with the launch of a $3.3 million study that is being funded by the National Institutes of Health (NIH). The study is intended to provide a more solid foundation for the benefits and harms of cervical screening for women older than 65.

It’s an important issue: 20% of all cervical cancer cases are found in women who are older than 65. Most of these patients have late-stage disease, which can be fatal. In the United States, 35% of cervical cancer deaths occur after age 65. But women in this age group are usually no longer screened for cervical cancer.

Back in 1996, the U.S. Preventive Services Task Force recommended that for women at average risk with adequate prior screening, cervical screening should stop at the age of 65. This recommendation has been carried forward year after year and has been incorporated into several other guidelines.

For example, current guidelines from the American Cancer Society, the American College of Obstetricians and Gynecologists, and the USPSTF recommend that cervical screening stop at aged 65 for patients with adequate prior screening.

“Adequate screening” is defined as three consecutive normal Pap tests or two consecutive negative human papillomavirus tests or two consecutive negative co-tests within the prior 10 years, with the most recent screening within 5 years and with no precancerous lesions in the past 25 years.

This all sounds reasonable; however, for most women, medical records aren’t up to the task of providing a clean bill of cervical health over many decades.

Explained Sarah Feldman, MD, an associate professor in obstetrics, gynecology, and reproductive biology at Harvard Medical School, Boston: “You know, when a patient says to me at 65, ‘Should I continue screening?’ I say, ‘Do you have all your results?’ And they’ll say, ‘Well, I remember I had a sort of abnormal pap 15 years ago,’ and I say, ‘All right; well, who knows what that was?’ So I’ll continue screening.”

According to George Sawaya, MD, professor of obstetrics, gynecology, and reproductive sciences at the University of California, San Francisco, up to 60% of women do not meet the criteria to end screening at age 65. This means that each year in the United States, approximately 1.7 million women turn 65 and should, in theory, continue to undergo screening for cervical cancer.

Unfortunately, the evidence base for the harms and benefits of cervical screening after age 65 is almost nonexistent – at least by the current standards of evidence-based medicine.

“We need to be clear that we don’t really know the appropriateness of the screening after 65,” said Dr. Sawaya, “which is ironic, because cervical cancer screening is probably the most commonly implemented cancer screening test in the country because it starts so early and ends so late and it’s applied so frequently.”

Dr. Feldman agrees that the age 65 cutoff is “somewhat arbitrary.” She said, “Why don’t they want to consider it continuing past 65? I don’t really understand, I have to be honest with you.”

So what’s the scientific evidence backing up the 27-year-old recommendation?

In 2018, the USPSTF’s cervical-screening guidelines concluded “with moderate certainty that the benefits of screening in women older than 65 years who have had adequate prior screening and are not otherwise at high risk for cervical cancer do not outweigh the potential harms.”

This recommendation was based on a new decision model commissioned by the USPSTF. The model was needed because, as noted by the guidelines’ authors, “None of the screening trials enrolled women older than 65 years, so direct evidence on when to stop screening is not available.”

In 2020, the ACS carried out a fresh literature review and published its own recommendations. The ACS concluded that “the evidence for the effectiveness of screening beyond age 65 is limited, based solely on observational and modeling studies.”

As a result, the ACS assigned a “qualified recommendation” to the age-65 moratorium (defined as “less certainty about the balance of benefits and harms or about patients’ values and preferences”).

Most recently, the 2021 Updated Cervical Cancer Screening Guidelines, published by the American College of Obstetricians and Gynecologists, endorsed the recommendations of the USPSTF.

Dr. Sawaya said, “The whole issue about screening over 65 is complicated from a lot of perspectives. We don’t know a lot about the safety. We don’t really know a lot about patients’ perceptions of it. But we do know that there has to be an upper age limit after which screening is just simply imprudent.”

Dr. Sawaya acknowledges that there exists a “heck-why-not” attitude toward cervical screening after 65 among some physicians, given that the tests are quick and cheap and could save a life, but he sounds a note of caution.

“It’s like when we used to use old cameras: the film was cheap, but the developing was really expensive,” Dr. Sawaya said. “So it’s not necessarily about the tests being cheap, it’s about the cascade of events [that follow].”

Follow-up for cervical cancer can be more hazardous for a postmenopausal patient than for a younger woman, explained Dr. Sawaya, because the transformation zone of the cervix may be difficult to see on colposcopy. Instead of a straightforward 5-minute procedure in the doctor’s office, the older patient may need the operating room simply to provide the first biopsy.

In addition, treatments such as cone biopsy, loop excision, or ablation are also more worrying for older women, said Dr. Sawaya, “So you start thinking about the risks of anesthesia, you start thinking about the risks of bleeding and infection, etc. And these have not been well described in older people.”

To add to the uncertainty about the merits and risks of hunting out cervical cancer in older women, a lot has changed in women’s health since 1996.

Explained Dr. Sawaya, “This stake was put in the ground in 1996, ... but since that time, life expectancy has gained 5 years. So a logical person would say, ‘Oh, well, let’s just say it should be 70 now, right?’ [But] can we even use old studies to inform the current cohort of women who are entering this 65-year-and-older age group?”

To answer all these questions, a 5-year, $3.3 million study funded by the NIH through the National Cancer Institute is now underway.

The project, named Comparative Effectiveness Research to Validate and Improve Cervical Cancer Screening (CERVICCS 2), will be led by Dr. Sawaya and Michael Silverberg, PhD, associate director of the Behavioral Health, Aging and Infectious Diseases Section of Kaiser Permanente Northern California’s Division of Research.

Dr. Sawaya concluded: “There’s very few things that are packaged away and thought to be just the truth. And this is why we always have to be vigilant. ... And that’s what keeps science so interesting and exciting.”

Dr. Sawaya has disclosed no relevant financial relationships. Dr. Feldman writes for UpToDate and receives several NIH grants.

A version of this article first appeared on Medscape.com.

“Did you love your wife?” asks a character in “Rose,” a book by Martin Cruz Smith.

“No, but she became a fact through perseverance,” the man replied.

Medicine also has such relationships, it seems – tentative ideas that turned into fact simply by existing long enough.

Age 65 as the cutoff for cervical screening may be one such example. It has existed for 27 years with limited science to back it up. That may soon change with the launch of a $3.3 million study that is being funded by the National Institutes of Health (NIH). The study is intended to provide a more solid foundation for the benefits and harms of cervical screening for women older than 65.

It’s an important issue: 20% of all cervical cancer cases are found in women who are older than 65. Most of these patients have late-stage disease, which can be fatal. In the United States, 35% of cervical cancer deaths occur after age 65. But women in this age group are usually no longer screened for cervical cancer.

Back in 1996, the U.S. Preventive Services Task Force recommended that for women at average risk with adequate prior screening, cervical screening should stop at the age of 65. This recommendation has been carried forward year after year and has been incorporated into several other guidelines.

For example, current guidelines from the American Cancer Society, the American College of Obstetricians and Gynecologists, and the USPSTF recommend that cervical screening stop at aged 65 for patients with adequate prior screening.

“Adequate screening” is defined as three consecutive normal Pap tests or two consecutive negative human papillomavirus tests or two consecutive negative co-tests within the prior 10 years, with the most recent screening within 5 years and with no precancerous lesions in the past 25 years.

This all sounds reasonable; however, for most women, medical records aren’t up to the task of providing a clean bill of cervical health over many decades.

Explained Sarah Feldman, MD, an associate professor in obstetrics, gynecology, and reproductive biology at Harvard Medical School, Boston: “You know, when a patient says to me at 65, ‘Should I continue screening?’ I say, ‘Do you have all your results?’ And they’ll say, ‘Well, I remember I had a sort of abnormal pap 15 years ago,’ and I say, ‘All right; well, who knows what that was?’ So I’ll continue screening.”

According to George Sawaya, MD, professor of obstetrics, gynecology, and reproductive sciences at the University of California, San Francisco, up to 60% of women do not meet the criteria to end screening at age 65. This means that each year in the United States, approximately 1.7 million women turn 65 and should, in theory, continue to undergo screening for cervical cancer.

Unfortunately, the evidence base for the harms and benefits of cervical screening after age 65 is almost nonexistent – at least by the current standards of evidence-based medicine.

“We need to be clear that we don’t really know the appropriateness of the screening after 65,” said Dr. Sawaya, “which is ironic, because cervical cancer screening is probably the most commonly implemented cancer screening test in the country because it starts so early and ends so late and it’s applied so frequently.”

Dr. Feldman agrees that the age 65 cutoff is “somewhat arbitrary.” She said, “Why don’t they want to consider it continuing past 65? I don’t really understand, I have to be honest with you.”

So what’s the scientific evidence backing up the 27-year-old recommendation?

In 2018, the USPSTF’s cervical-screening guidelines concluded “with moderate certainty that the benefits of screening in women older than 65 years who have had adequate prior screening and are not otherwise at high risk for cervical cancer do not outweigh the potential harms.”

This recommendation was based on a new decision model commissioned by the USPSTF. The model was needed because, as noted by the guidelines’ authors, “None of the screening trials enrolled women older than 65 years, so direct evidence on when to stop screening is not available.”

In 2020, the ACS carried out a fresh literature review and published its own recommendations. The ACS concluded that “the evidence for the effectiveness of screening beyond age 65 is limited, based solely on observational and modeling studies.”

As a result, the ACS assigned a “qualified recommendation” to the age-65 moratorium (defined as “less certainty about the balance of benefits and harms or about patients’ values and preferences”).

Most recently, the 2021 Updated Cervical Cancer Screening Guidelines, published by the American College of Obstetricians and Gynecologists, endorsed the recommendations of the USPSTF.

Dr. Sawaya said, “The whole issue about screening over 65 is complicated from a lot of perspectives. We don’t know a lot about the safety. We don’t really know a lot about patients’ perceptions of it. But we do know that there has to be an upper age limit after which screening is just simply imprudent.”

Dr. Sawaya acknowledges that there exists a “heck-why-not” attitude toward cervical screening after 65 among some physicians, given that the tests are quick and cheap and could save a life, but he sounds a note of caution.

“It’s like when we used to use old cameras: the film was cheap, but the developing was really expensive,” Dr. Sawaya said. “So it’s not necessarily about the tests being cheap, it’s about the cascade of events [that follow].”

Follow-up for cervical cancer can be more hazardous for a postmenopausal patient than for a younger woman, explained Dr. Sawaya, because the transformation zone of the cervix may be difficult to see on colposcopy. Instead of a straightforward 5-minute procedure in the doctor’s office, the older patient may need the operating room simply to provide the first biopsy.

In addition, treatments such as cone biopsy, loop excision, or ablation are also more worrying for older women, said Dr. Sawaya, “So you start thinking about the risks of anesthesia, you start thinking about the risks of bleeding and infection, etc. And these have not been well described in older people.”

To add to the uncertainty about the merits and risks of hunting out cervical cancer in older women, a lot has changed in women’s health since 1996.

Explained Dr. Sawaya, “This stake was put in the ground in 1996, ... but since that time, life expectancy has gained 5 years. So a logical person would say, ‘Oh, well, let’s just say it should be 70 now, right?’ [But] can we even use old studies to inform the current cohort of women who are entering this 65-year-and-older age group?”

To answer all these questions, a 5-year, $3.3 million study funded by the NIH through the National Cancer Institute is now underway.

The project, named Comparative Effectiveness Research to Validate and Improve Cervical Cancer Screening (CERVICCS 2), will be led by Dr. Sawaya and Michael Silverberg, PhD, associate director of the Behavioral Health, Aging and Infectious Diseases Section of Kaiser Permanente Northern California’s Division of Research.

Dr. Sawaya concluded: “There’s very few things that are packaged away and thought to be just the truth. And this is why we always have to be vigilant. ... And that’s what keeps science so interesting and exciting.”

Dr. Sawaya has disclosed no relevant financial relationships. Dr. Feldman writes for UpToDate and receives several NIH grants.

A version of this article first appeared on Medscape.com.

Patients with advanced renal cell carcinoma who are taking a tyrosine kinase inhibitor (TKI) to prolong their lives will typically keep going without a break until the disease progresses or toxicities such as severe fatigue and diarrhea become intolerable.

That might soon change with the publication of a unique study. Lasting 10 years, the phase 3 STAR trial involved 920 patients across 60 cancer centers. These patients had advanced kidney cancer and were taking either sunitinib (Sutent) or pazopanib (Votrient).

The results showed that taking an occasional respite from TKI therapy had little impact on the patient’s survival.

The study was published online in The Lancet Oncology.

The study was funded by the United Kingdom’s National Institute for Health and Care Research because drug companies never run studies on how to reduce the use of their drug, commented lead author Janet Brown, MD, of the University of Sheffield (England).

“We rely on the NIHR to do these important trials that … companies wouldn’t do,” she commented to this news organization.

Commenting on the rationale for STAR, coauthor Jenny Hewison, PhD, of Leeds (England) University School of Medicine, explained that patients often find it difficult to tolerate TKIs. “Although these patients are getting the best treatment that we can offer them, it’s very demanding. … It could make them feel tired, quite unwell. And there can be a range of other effects including sickness and diarrhea.”

As an example, 77% of patients in the pivotal trial of sunitinib in kidney cancer experienced grade 3 or 4 adverse events such as hypertension (13%), fatigue (15%), diarrhea (10%) and hand-foot syndrome (8%).

Both sunitinib and pazopanib carry label warnings of severe and fatal hepatotoxicity.

Also, in contrast to conventional chemotherapy, which is usually given in a finite number of courses, treatment with TKIs carries on indefinitely.

“It feels like you’re taking [TKIs] for the whole of the rest of your life,” said Dr. Brown.
 

Study details

The STAR trial, an open-label, noninferiority, randomized controlled study, is the first phase 3 study of treatment breaks in renal cell carcinoma. The participants had inoperable locoregional or metastatic clear cell renal cell carcinoma (ccRCC) and had received no systemic therapy for advanced disease.

They were randomly assigned before TKI treatment to a conventional continuation strategy or a drug-free interval approach. The treating physician decided whether a patient would take sunitinib or pazopanib.

All participants took their drugs for four cycles (6 weeks each cycle). At the 24-week point, those with a complete response, partial response, or stable disease began their randomized assignment.

Individuals who took a break continued until their disease progressed, at which point therapy was resumed. They could take further treatment breaks once their disease was back under control. The group on continuous treatment kept going until disease progression or intolerable toxicities. Median follow up was 58 months.

In both the per-protocol and intent-to-treat (ITT) populations, overall survival was 28 months for the people who received continuous treatment vs. 27 months for those who took a break. Statistical noninferiority was established in the ITT population but not in the per-protocol population.

The median length of all treatment breaks was 87 days. Many people took two or more breaks; one patient took nine breaks overall. The breaks were popular: only 3% of participants who were meant to stop therapy withdrew from the study in order to continue their treatment.

Said Dr. Hewison: “In the very early days of planning the study there were some doubts as to whether it would succeed because of potential unwillingness of people to stop treatment for a while.”

Dr. Brown agreed: “People did worry about that initially, but it actually seemed to be more the other way around. By that time – 6 months – people were relieved to be there. …We actually had some people from the other arm asking, could they also have a break?”

To understand better the benefits of treatment breaks to patients, Janine Bestall, PhD, a senior research fellow in applied health research at the University of Leeds, conducted a qualitative study in parallel with the main trial.

Summing up the patients’ experiences, Dr. Bestall said the drug-free periods “gave them more time.”

Dr. Bestall quoted one patient who said: “I know that things can happen and it grows back, but you’ve always got the buffer there knowing that you can go back and get help. But you actually lead a normal life and the advantage is, yeah, you can go on holiday, you can actually do more things in the garden, cleaning up, painting, whatever needs doing, you do it.”

Dr. Brown said, “I had a lady who, when she was on the trial, had four breaks in total, one when her daughter got married, and [she said] that was really nice for her to do all the shopping and all the normal things that you do, and not be on something that was making her tired and causing sore hands and diarrhea.” 

The drug-free interval strategy provided annual cost savings of 3,235 pounds sterling ($3,850) and a noninferior quality-adjusted life-year (QALY) benefit in both the ITT and per-protocol populations.

Serious adverse reactions occurred in 9% of patients in the treatment-break group versus 12% of the continuous-treatment group.

The authors of the study concluded, “Treatment breaks might be a feasible and cost-effective option with lifestyle benefits for patients during tyrosine kinase inhibitor therapy in patients with renal cell carcinoma.”
 

Changes in treatment strategies

The STAR trial started recruiting in January 2012.

Since that time, immunotherapy has taken over as first-line treatment for many patients with advanced ccRCC in both the United Kingdom and the United States.

However, TKIs still have a place. The NCCN Kidney Cancer 2022 Guidelines recommend both sunitinib and pazopanib as options for first-line therapy in advanced disease. The 2022 ASCO Metastatic ccRCC guidelines recommend either drug as first-line treatment in combination with an immune checkpoint inhibitor or in monotherapy if there are “coexisting medical problems.”

In the United States, intermittent sunitinib in metastatic RCC was tested in a small study in 2017 with little activity in the literature since then. The authors, led by Moshe Ornstein, MD, from the Cleveland Clinic, concluded at the time that sunitinib treatment breaks were feasible and “clinical efficacy does not seem to be compromised.” Dr. Ornstein was approached for comment on this latest U.K. study but declined.

Back in the United Kingdom, the results of STAR arrived just in time.

Said Dr. Brown: “This has … been really helpful in the U.K. in the pandemic when people said, can these patients have extra breaks? At the worst of the pandemic we were able to say, sure, if it’s stable, we can keep them off for 3-6 months. …And so that’s already had a powerful impact.”

Dr. Brown concluded, “I think what the trial does allow us to do, as individual oncologists, is to look at the patients that this might be suitable for – it won’t be everybody – and to say yes, it’s okay to personalize things.”

The study was funded by the U.K.’s National Institute for Health and Care Research. Dr. Bestall reported no relevant financial relationships. Dr. Hewison reported funding to her institution from the NIHR Health Technology Assessment. Dr. Brown reports having served as a consultant or adviser for Novartis, Ipsen, Amgen, Merck Sharp & Dohme, Bristol-Myers Squibb, and Bayer; honoraria from Novartis, Ipsen, Amgen, Merck Sharp & Dohme, Bristol-Myers Squibb, and Bayer; research funding paid to their institution from the National Institute for Health and Care Research; and travel expenses from Ipsen. Other coauthors reported numerous relationships with industry.

A version of this article first appeared on Medscape.com.

Patients with advanced renal cell carcinoma who are taking a tyrosine kinase inhibitor (TKI) to prolong their lives will typically keep going without a break until the disease progresses or toxicities such as severe fatigue and diarrhea become intolerable.

That might soon change with the publication of a unique study. Lasting 10 years, the phase 3 STAR trial involved 920 patients across 60 cancer centers. These patients had advanced kidney cancer and were taking either sunitinib (Sutent) or pazopanib (Votrient).

The results showed that taking an occasional respite from TKI therapy had little impact on the patient’s survival.

The study was published online in The Lancet Oncology.

The study was funded by the United Kingdom’s National Institute for Health and Care Research because drug companies never run studies on how to reduce the use of their drug, commented lead author Janet Brown, MD, of the University of Sheffield (England).

“We rely on the NIHR to do these important trials that … companies wouldn’t do,” she commented to this news organization.

Commenting on the rationale for STAR, coauthor Jenny Hewison, PhD, of Leeds (England) University School of Medicine, explained that patients often find it difficult to tolerate TKIs. “Although these patients are getting the best treatment that we can offer them, it’s very demanding. … It could make them feel tired, quite unwell. And there can be a range of other effects including sickness and diarrhea.”

As an example, 77% of patients in the pivotal trial of sunitinib in kidney cancer experienced grade 3 or 4 adverse events such as hypertension (13%), fatigue (15%), diarrhea (10%) and hand-foot syndrome (8%).

Both sunitinib and pazopanib carry label warnings of severe and fatal hepatotoxicity.

Also, in contrast to conventional chemotherapy, which is usually given in a finite number of courses, treatment with TKIs carries on indefinitely.

“It feels like you’re taking [TKIs] for the whole of the rest of your life,” said Dr. Brown.
 

Study details

The STAR trial, an open-label, noninferiority, randomized controlled study, is the first phase 3 study of treatment breaks in renal cell carcinoma. The participants had inoperable locoregional or metastatic clear cell renal cell carcinoma (ccRCC) and had received no systemic therapy for advanced disease.

They were randomly assigned before TKI treatment to a conventional continuation strategy or a drug-free interval approach. The treating physician decided whether a patient would take sunitinib or pazopanib.

All participants took their drugs for four cycles (6 weeks each cycle). At the 24-week point, those with a complete response, partial response, or stable disease began their randomized assignment.

Individuals who took a break continued until their disease progressed, at which point therapy was resumed. They could take further treatment breaks once their disease was back under control. The group on continuous treatment kept going until disease progression or intolerable toxicities. Median follow up was 58 months.

In both the per-protocol and intent-to-treat (ITT) populations, overall survival was 28 months for the people who received continuous treatment vs. 27 months for those who took a break. Statistical noninferiority was established in the ITT population but not in the per-protocol population.

The median length of all treatment breaks was 87 days. Many people took two or more breaks; one patient took nine breaks overall. The breaks were popular: only 3% of participants who were meant to stop therapy withdrew from the study in order to continue their treatment.

Said Dr. Hewison: “In the very early days of planning the study there were some doubts as to whether it would succeed because of potential unwillingness of people to stop treatment for a while.”

Dr. Brown agreed: “People did worry about that initially, but it actually seemed to be more the other way around. By that time – 6 months – people were relieved to be there. …We actually had some people from the other arm asking, could they also have a break?”

To understand better the benefits of treatment breaks to patients, Janine Bestall, PhD, a senior research fellow in applied health research at the University of Leeds, conducted a qualitative study in parallel with the main trial.

Summing up the patients’ experiences, Dr. Bestall said the drug-free periods “gave them more time.”

Dr. Bestall quoted one patient who said: “I know that things can happen and it grows back, but you’ve always got the buffer there knowing that you can go back and get help. But you actually lead a normal life and the advantage is, yeah, you can go on holiday, you can actually do more things in the garden, cleaning up, painting, whatever needs doing, you do it.”

Dr. Brown said, “I had a lady who, when she was on the trial, had four breaks in total, one when her daughter got married, and [she said] that was really nice for her to do all the shopping and all the normal things that you do, and not be on something that was making her tired and causing sore hands and diarrhea.” 

The drug-free interval strategy provided annual cost savings of 3,235 pounds sterling ($3,850) and a noninferior quality-adjusted life-year (QALY) benefit in both the ITT and per-protocol populations.

Serious adverse reactions occurred in 9% of patients in the treatment-break group versus 12% of the continuous-treatment group.

The authors of the study concluded, “Treatment breaks might be a feasible and cost-effective option with lifestyle benefits for patients during tyrosine kinase inhibitor therapy in patients with renal cell carcinoma.”
 

Changes in treatment strategies

The STAR trial started recruiting in January 2012.

Since that time, immunotherapy has taken over as first-line treatment for many patients with advanced ccRCC in both the United Kingdom and the United States.

However, TKIs still have a place. The NCCN Kidney Cancer 2022 Guidelines recommend both sunitinib and pazopanib as options for first-line therapy in advanced disease. The 2022 ASCO Metastatic ccRCC guidelines recommend either drug as first-line treatment in combination with an immune checkpoint inhibitor or in monotherapy if there are “coexisting medical problems.”

In the United States, intermittent sunitinib in metastatic RCC was tested in a small study in 2017 with little activity in the literature since then. The authors, led by Moshe Ornstein, MD, from the Cleveland Clinic, concluded at the time that sunitinib treatment breaks were feasible and “clinical efficacy does not seem to be compromised.” Dr. Ornstein was approached for comment on this latest U.K. study but declined.

Back in the United Kingdom, the results of STAR arrived just in time.

Said Dr. Brown: “This has … been really helpful in the U.K. in the pandemic when people said, can these patients have extra breaks? At the worst of the pandemic we were able to say, sure, if it’s stable, we can keep them off for 3-6 months. …And so that’s already had a powerful impact.”

Dr. Brown concluded, “I think what the trial does allow us to do, as individual oncologists, is to look at the patients that this might be suitable for – it won’t be everybody – and to say yes, it’s okay to personalize things.”

The study was funded by the U.K.’s National Institute for Health and Care Research. Dr. Bestall reported no relevant financial relationships. Dr. Hewison reported funding to her institution from the NIHR Health Technology Assessment. Dr. Brown reports having served as a consultant or adviser for Novartis, Ipsen, Amgen, Merck Sharp & Dohme, Bristol-Myers Squibb, and Bayer; honoraria from Novartis, Ipsen, Amgen, Merck Sharp & Dohme, Bristol-Myers Squibb, and Bayer; research funding paid to their institution from the National Institute for Health and Care Research; and travel expenses from Ipsen. Other coauthors reported numerous relationships with industry.

A version of this article first appeared on Medscape.com.

Patients with advanced renal cell carcinoma who are taking a tyrosine kinase inhibitor (TKI) to prolong their lives will typically keep going without a break until the disease progresses or toxicities such as severe fatigue and diarrhea become intolerable.

That might soon change with the publication of a unique study. Lasting 10 years, the phase 3 STAR trial involved 920 patients across 60 cancer centers. These patients had advanced kidney cancer and were taking either sunitinib (Sutent) or pazopanib (Votrient).

The results showed that taking an occasional respite from TKI therapy had little impact on the patient’s survival.

The study was published online in The Lancet Oncology.

The study was funded by the United Kingdom’s National Institute for Health and Care Research because drug companies never run studies on how to reduce the use of their drug, commented lead author Janet Brown, MD, of the University of Sheffield (England).

“We rely on the NIHR to do these important trials that … companies wouldn’t do,” she commented to this news organization.

Commenting on the rationale for STAR, coauthor Jenny Hewison, PhD, of Leeds (England) University School of Medicine, explained that patients often find it difficult to tolerate TKIs. “Although these patients are getting the best treatment that we can offer them, it’s very demanding. … It could make them feel tired, quite unwell. And there can be a range of other effects including sickness and diarrhea.”

As an example, 77% of patients in the pivotal trial of sunitinib in kidney cancer experienced grade 3 or 4 adverse events such as hypertension (13%), fatigue (15%), diarrhea (10%) and hand-foot syndrome (8%).

Both sunitinib and pazopanib carry label warnings of severe and fatal hepatotoxicity.

Also, in contrast to conventional chemotherapy, which is usually given in a finite number of courses, treatment with TKIs carries on indefinitely.

“It feels like you’re taking [TKIs] for the whole of the rest of your life,” said Dr. Brown.
 

Study details

The STAR trial, an open-label, noninferiority, randomized controlled study, is the first phase 3 study of treatment breaks in renal cell carcinoma. The participants had inoperable locoregional or metastatic clear cell renal cell carcinoma (ccRCC) and had received no systemic therapy for advanced disease.

They were randomly assigned before TKI treatment to a conventional continuation strategy or a drug-free interval approach. The treating physician decided whether a patient would take sunitinib or pazopanib.

All participants took their drugs for four cycles (6 weeks each cycle). At the 24-week point, those with a complete response, partial response, or stable disease began their randomized assignment.

Individuals who took a break continued until their disease progressed, at which point therapy was resumed. They could take further treatment breaks once their disease was back under control. The group on continuous treatment kept going until disease progression or intolerable toxicities. Median follow up was 58 months.

In both the per-protocol and intent-to-treat (ITT) populations, overall survival was 28 months for the people who received continuous treatment vs. 27 months for those who took a break. Statistical noninferiority was established in the ITT population but not in the per-protocol population.

The median length of all treatment breaks was 87 days. Many people took two or more breaks; one patient took nine breaks overall. The breaks were popular: only 3% of participants who were meant to stop therapy withdrew from the study in order to continue their treatment.

Said Dr. Hewison: “In the very early days of planning the study there were some doubts as to whether it would succeed because of potential unwillingness of people to stop treatment for a while.”

Dr. Brown agreed: “People did worry about that initially, but it actually seemed to be more the other way around. By that time – 6 months – people were relieved to be there. …We actually had some people from the other arm asking, could they also have a break?”

To understand better the benefits of treatment breaks to patients, Janine Bestall, PhD, a senior research fellow in applied health research at the University of Leeds, conducted a qualitative study in parallel with the main trial.

Summing up the patients’ experiences, Dr. Bestall said the drug-free periods “gave them more time.”

Dr. Bestall quoted one patient who said: “I know that things can happen and it grows back, but you’ve always got the buffer there knowing that you can go back and get help. But you actually lead a normal life and the advantage is, yeah, you can go on holiday, you can actually do more things in the garden, cleaning up, painting, whatever needs doing, you do it.”

Dr. Brown said, “I had a lady who, when she was on the trial, had four breaks in total, one when her daughter got married, and [she said] that was really nice for her to do all the shopping and all the normal things that you do, and not be on something that was making her tired and causing sore hands and diarrhea.” 

The drug-free interval strategy provided annual cost savings of 3,235 pounds sterling ($3,850) and a noninferior quality-adjusted life-year (QALY) benefit in both the ITT and per-protocol populations.

Serious adverse reactions occurred in 9% of patients in the treatment-break group versus 12% of the continuous-treatment group.

The authors of the study concluded, “Treatment breaks might be a feasible and cost-effective option with lifestyle benefits for patients during tyrosine kinase inhibitor therapy in patients with renal cell carcinoma.”
 

Changes in treatment strategies

The STAR trial started recruiting in January 2012.

Since that time, immunotherapy has taken over as first-line treatment for many patients with advanced ccRCC in both the United Kingdom and the United States.

However, TKIs still have a place. The NCCN Kidney Cancer 2022 Guidelines recommend both sunitinib and pazopanib as options for first-line therapy in advanced disease. The 2022 ASCO Metastatic ccRCC guidelines recommend either drug as first-line treatment in combination with an immune checkpoint inhibitor or in monotherapy if there are “coexisting medical problems.”

In the United States, intermittent sunitinib in metastatic RCC was tested in a small study in 2017 with little activity in the literature since then. The authors, led by Moshe Ornstein, MD, from the Cleveland Clinic, concluded at the time that sunitinib treatment breaks were feasible and “clinical efficacy does not seem to be compromised.” Dr. Ornstein was approached for comment on this latest U.K. study but declined.

Back in the United Kingdom, the results of STAR arrived just in time.

Said Dr. Brown: “This has … been really helpful in the U.K. in the pandemic when people said, can these patients have extra breaks? At the worst of the pandemic we were able to say, sure, if it’s stable, we can keep them off for 3-6 months. …And so that’s already had a powerful impact.”

Dr. Brown concluded, “I think what the trial does allow us to do, as individual oncologists, is to look at the patients that this might be suitable for – it won’t be everybody – and to say yes, it’s okay to personalize things.”

The study was funded by the U.K.’s National Institute for Health and Care Research. Dr. Bestall reported no relevant financial relationships. Dr. Hewison reported funding to her institution from the NIHR Health Technology Assessment. Dr. Brown reports having served as a consultant or adviser for Novartis, Ipsen, Amgen, Merck Sharp & Dohme, Bristol-Myers Squibb, and Bayer; honoraria from Novartis, Ipsen, Amgen, Merck Sharp & Dohme, Bristol-Myers Squibb, and Bayer; research funding paid to their institution from the National Institute for Health and Care Research; and travel expenses from Ipsen. Other coauthors reported numerous relationships with industry.

A version of this article first appeared on Medscape.com.

A number of new studies in lung cancer have started in recent months. Could one of your patients benefit from participating?

Untreated advanced non–small cell lung cancer (NSCLC). Adult patients with stage IIIB, IIIC, or IV disease without actionable genomic alterations can join a randomized, open-label, phase 3 study testing the survival advantage of datopotamab deruxtecan (Dato-DXd) (AstraZeneca/Daiichi Sankyo). Dato-DXd is one of a half dozen experimental antibody-drug conjugates that target TROP2, a transmembrane glycoprotein that is overexpressed in several solid tumors, including NSCLC. One group of participants will receive an intravenous (IV) infusion of Dato-DXd plus durvalumab (Imfinzi) for up to 4 years, and over the first 12 weeks, they will receive four rounds of IV carboplatin (Paraplatin). The other group will receive IV infusions of pembrolizumab (Keytruda) every 3 weeks plus a combination of standard IV chemotherapy appropriate for the patient’s histology (nonsquamous or squamous NSCLC). In the United States, centers in Arkansas, Nebraska, Ohio, and Texas started recruiting in December 2020; trial sites are planned in 16 other states and 23 other countries. The trialists plan to enroll 1,000 participants. Overall survival (OS) and progression-free survival (PFS) are the primary endpoints; quality of life (QoL) is not being tracked. More details at clinicaltrials.gov.

Untreated advanced or metastatic NSCLC. Adult patients in this clinical situation without actionable genomic alterations as well as those with a PD-L1 tumor proportion score (TPS) of < 50% are eligible to participate in a randomized, open-label, phase 3 trial of Dato-DXd in combination with pembrolizumab, with or without chemotherapy. One group of participants will receive IV Dato-DXd and pembrolizumab every 3 weeks. For the second group of patients, IV platinum chemotherapy will be added to the Dato-DXd and pembrolizumab for the first four rounds of treatment. The third group of individuals make up the comparator arm and will receive thrice-weekly IV pembrolizumab, pemetrexed (Alimta), plus platinum chemotherapy. All participants will be treated for approximately 2.5 years or until disease progression or death. The trial began recruiting 975 participants in Arizona, Florida, Maryland, and New Jersey, and in Japan in January 2023. The primary endpoints are OS and PFS; QoL will not be assessed. More details at clinicaltrials.gov.

Metastatic NSCLC. Individuals with this cancer who have a TPS of > 50% can also receive an antibody-drug conjugate targeting TROP2 in combination with pembrolizumab. This time, the product is sacituzumab govitecan (Trodelvy). The randomized, open-label phase 3 trial is testing whether the two drugs in combination improve survival and slow progression better than pembrolizumab alone. For approximately 2 years, one group of people in the trial will receive IV pembrolizumab every 3 weeks. The other group, in addition to the pembrolizumab, will receive IV sacituzumab govitecan weekly for 2 weeks then 1 week off until unacceptable toxicity, disease progression, withdrawal of consent, or death. Study sites in the states of Florida and Georgia, and in Australia, Taiwan, and Turkey, opened in February 2023 with the aim of recruiting 614 participants. Overall survival over 4 years and PFS are the primary outcomes. QoL is a secondary outcome. More details at clinicaltrials.gov.

Unresectable metastatic NSCLC. Individuals with this type of lung cancer are being recruited for a nonrandomized, phase 1/2 study to determine whether a combination of amivantamab (Rybrevant) and capmatinib (Tabrecta) is tolerable and more effective than either therapy alone. The two drugs inhibit different stages of mesenchymal-epithelial transition (MET), a step in cell development that is crucial for metastasis because it enhances cell mobility, invasion, and resistance to apoptosis. In the phase 1 study, participants will start with twice-daily tablets of capmatinib and IV amivantamab once weekly for 4 weeks then every 2 weeks. Doses will be adjusted on the basis of toxicities. In phase 2, a new group of participants will receive the refined doses for up to 2 years until progression or death. The study opened at the Oncology Institute of Hope and Innovation in Whittier, Calif., in December 2020 with the aim of recruiting 161 participants. Sites are gearing up in five more U.S. states and in Canada, Europe, and Asia. Objective response rate is the primary outcome of the phase 2 study, with OS and QoL as secondary endpoints. More details at clinicaltrials.gov.

Locally advanced or metastatic NSCLC with EGFR-exon-20 insertion mutations. Adults with this diagnosis who have not yet been treated and are not amenable to curative surgery or radiotherapy are sought for a randomized, open-label phase 3 trial testing whether investigational EGFR tyrosine-kinase inhibitor furmonertinib (from ArriVent) is more effective than chemotherapy for first-line treatment. Chemotherapy is currently standard of care in this indication with targeted therapies amivantamab-vmjw (Rybrevant) and mobocertinib succinate (Exkivity) as second-line options. Individuals in the trial will take daily tablets of furmonertinib or platinum-based IV chemotherapy for 32 months or until disease progression, whichever comes first. The study opened in December in sites across 15 U.S. states. Centers in a further nine states are gearing up, with the aim of enrolling a total of 375 people. The primary outcome is PFS. QoL and OS at 5 years are secondary outcomes. More details at clinicaltrials.gov.

NSCLC previously treated with at least one platinum chemotherapy and at least one targeted treatment. Adults aged 70 or younger with this type of lung cancer are eligible for a National Cancer Institute phase 2 investigation of autologous T-cell receptor (TCR) gene therapy. Unlike CAR T-cell therapy, which only reaches the 20% of cancer neoantigens that are expressed extracellularly, TCR technology can target the 80% of abnormal proteins that are expressed inside cancer cells. Participants will receive a single infusion of their own engineered T cells. They will attend follow-up visits every 3-6 months for 3 years, then join a long-term study in which they will be followed for 12 more years. The National Institutes of Health Clinical Center in Bethesda, Md., started recruiting for the trial’s 210 participants with one of a selection of solid cancers in February 2023. Response rate measured by objective tumor regression is the primary endpoint. OS and QoL will not be tracked. More details at clinicaltrials.gov.

All trial information is from the National Institutes of Health U.S. National Library of Medicine (online at clinicaltrials.gov).

A version of this article first appeared on Medscape.com.

Editor’s note: This article was changed on 24 February to remove an incorrect reference to osimertinib.

A number of new studies in lung cancer have started in recent months. Could one of your patients benefit from participating?

Untreated advanced non–small cell lung cancer (NSCLC). Adult patients with stage IIIB, IIIC, or IV disease without actionable genomic alterations can join a randomized, open-label, phase 3 study testing the survival advantage of datopotamab deruxtecan (Dato-DXd) (AstraZeneca/Daiichi Sankyo). Dato-DXd is one of a half dozen experimental antibody-drug conjugates that target TROP2, a transmembrane glycoprotein that is overexpressed in several solid tumors, including NSCLC. One group of participants will receive an intravenous (IV) infusion of Dato-DXd plus durvalumab (Imfinzi) for up to 4 years, and over the first 12 weeks, they will receive four rounds of IV carboplatin (Paraplatin). The other group will receive IV infusions of pembrolizumab (Keytruda) every 3 weeks plus a combination of standard IV chemotherapy appropriate for the patient’s histology (nonsquamous or squamous NSCLC). In the United States, centers in Arkansas, Nebraska, Ohio, and Texas started recruiting in December 2020; trial sites are planned in 16 other states and 23 other countries. The trialists plan to enroll 1,000 participants. Overall survival (OS) and progression-free survival (PFS) are the primary endpoints; quality of life (QoL) is not being tracked. More details at clinicaltrials.gov.

Untreated advanced or metastatic NSCLC. Adult patients in this clinical situation without actionable genomic alterations as well as those with a PD-L1 tumor proportion score (TPS) of < 50% are eligible to participate in a randomized, open-label, phase 3 trial of Dato-DXd in combination with pembrolizumab, with or without chemotherapy. One group of participants will receive IV Dato-DXd and pembrolizumab every 3 weeks. For the second group of patients, IV platinum chemotherapy will be added to the Dato-DXd and pembrolizumab for the first four rounds of treatment. The third group of individuals make up the comparator arm and will receive thrice-weekly IV pembrolizumab, pemetrexed (Alimta), plus platinum chemotherapy. All participants will be treated for approximately 2.5 years or until disease progression or death. The trial began recruiting 975 participants in Arizona, Florida, Maryland, and New Jersey, and in Japan in January 2023. The primary endpoints are OS and PFS; QoL will not be assessed. More details at clinicaltrials.gov.

Metastatic NSCLC. Individuals with this cancer who have a TPS of > 50% can also receive an antibody-drug conjugate targeting TROP2 in combination with pembrolizumab. This time, the product is sacituzumab govitecan (Trodelvy). The randomized, open-label phase 3 trial is testing whether the two drugs in combination improve survival and slow progression better than pembrolizumab alone. For approximately 2 years, one group of people in the trial will receive IV pembrolizumab every 3 weeks. The other group, in addition to the pembrolizumab, will receive IV sacituzumab govitecan weekly for 2 weeks then 1 week off until unacceptable toxicity, disease progression, withdrawal of consent, or death. Study sites in the states of Florida and Georgia, and in Australia, Taiwan, and Turkey, opened in February 2023 with the aim of recruiting 614 participants. Overall survival over 4 years and PFS are the primary outcomes. QoL is a secondary outcome. More details at clinicaltrials.gov.

Unresectable metastatic NSCLC. Individuals with this type of lung cancer are being recruited for a nonrandomized, phase 1/2 study to determine whether a combination of amivantamab (Rybrevant) and capmatinib (Tabrecta) is tolerable and more effective than either therapy alone. The two drugs inhibit different stages of mesenchymal-epithelial transition (MET), a step in cell development that is crucial for metastasis because it enhances cell mobility, invasion, and resistance to apoptosis. In the phase 1 study, participants will start with twice-daily tablets of capmatinib and IV amivantamab once weekly for 4 weeks then every 2 weeks. Doses will be adjusted on the basis of toxicities. In phase 2, a new group of participants will receive the refined doses for up to 2 years until progression or death. The study opened at the Oncology Institute of Hope and Innovation in Whittier, Calif., in December 2020 with the aim of recruiting 161 participants. Sites are gearing up in five more U.S. states and in Canada, Europe, and Asia. Objective response rate is the primary outcome of the phase 2 study, with OS and QoL as secondary endpoints. More details at clinicaltrials.gov.

Locally advanced or metastatic NSCLC with EGFR-exon-20 insertion mutations. Adults with this diagnosis who have not yet been treated and are not amenable to curative surgery or radiotherapy are sought for a randomized, open-label phase 3 trial testing whether investigational EGFR tyrosine-kinase inhibitor furmonertinib (from ArriVent) is more effective than chemotherapy for first-line treatment. Chemotherapy is currently standard of care in this indication with targeted therapies amivantamab-vmjw (Rybrevant) and mobocertinib succinate (Exkivity) as second-line options. Individuals in the trial will take daily tablets of furmonertinib or platinum-based IV chemotherapy for 32 months or until disease progression, whichever comes first. The study opened in December in sites across 15 U.S. states. Centers in a further nine states are gearing up, with the aim of enrolling a total of 375 people. The primary outcome is PFS. QoL and OS at 5 years are secondary outcomes. More details at clinicaltrials.gov.

NSCLC previously treated with at least one platinum chemotherapy and at least one targeted treatment. Adults aged 70 or younger with this type of lung cancer are eligible for a National Cancer Institute phase 2 investigation of autologous T-cell receptor (TCR) gene therapy. Unlike CAR T-cell therapy, which only reaches the 20% of cancer neoantigens that are expressed extracellularly, TCR technology can target the 80% of abnormal proteins that are expressed inside cancer cells. Participants will receive a single infusion of their own engineered T cells. They will attend follow-up visits every 3-6 months for 3 years, then join a long-term study in which they will be followed for 12 more years. The National Institutes of Health Clinical Center in Bethesda, Md., started recruiting for the trial’s 210 participants with one of a selection of solid cancers in February 2023. Response rate measured by objective tumor regression is the primary endpoint. OS and QoL will not be tracked. More details at clinicaltrials.gov.

All trial information is from the National Institutes of Health U.S. National Library of Medicine (online at clinicaltrials.gov).

A version of this article first appeared on Medscape.com.

Editor’s note: This article was changed on 24 February to remove an incorrect reference to osimertinib.

A number of new studies in lung cancer have started in recent months. Could one of your patients benefit from participating?

Untreated advanced non–small cell lung cancer (NSCLC). Adult patients with stage IIIB, IIIC, or IV disease without actionable genomic alterations can join a randomized, open-label, phase 3 study testing the survival advantage of datopotamab deruxtecan (Dato-DXd) (AstraZeneca/Daiichi Sankyo). Dato-DXd is one of a half dozen experimental antibody-drug conjugates that target TROP2, a transmembrane glycoprotein that is overexpressed in several solid tumors, including NSCLC. One group of participants will receive an intravenous (IV) infusion of Dato-DXd plus durvalumab (Imfinzi) for up to 4 years, and over the first 12 weeks, they will receive four rounds of IV carboplatin (Paraplatin). The other group will receive IV infusions of pembrolizumab (Keytruda) every 3 weeks plus a combination of standard IV chemotherapy appropriate for the patient’s histology (nonsquamous or squamous NSCLC). In the United States, centers in Arkansas, Nebraska, Ohio, and Texas started recruiting in December 2020; trial sites are planned in 16 other states and 23 other countries. The trialists plan to enroll 1,000 participants. Overall survival (OS) and progression-free survival (PFS) are the primary endpoints; quality of life (QoL) is not being tracked. More details at clinicaltrials.gov.

Untreated advanced or metastatic NSCLC. Adult patients in this clinical situation without actionable genomic alterations as well as those with a PD-L1 tumor proportion score (TPS) of < 50% are eligible to participate in a randomized, open-label, phase 3 trial of Dato-DXd in combination with pembrolizumab, with or without chemotherapy. One group of participants will receive IV Dato-DXd and pembrolizumab every 3 weeks. For the second group of patients, IV platinum chemotherapy will be added to the Dato-DXd and pembrolizumab for the first four rounds of treatment. The third group of individuals make up the comparator arm and will receive thrice-weekly IV pembrolizumab, pemetrexed (Alimta), plus platinum chemotherapy. All participants will be treated for approximately 2.5 years or until disease progression or death. The trial began recruiting 975 participants in Arizona, Florida, Maryland, and New Jersey, and in Japan in January 2023. The primary endpoints are OS and PFS; QoL will not be assessed. More details at clinicaltrials.gov.

Metastatic NSCLC. Individuals with this cancer who have a TPS of > 50% can also receive an antibody-drug conjugate targeting TROP2 in combination with pembrolizumab. This time, the product is sacituzumab govitecan (Trodelvy). The randomized, open-label phase 3 trial is testing whether the two drugs in combination improve survival and slow progression better than pembrolizumab alone. For approximately 2 years, one group of people in the trial will receive IV pembrolizumab every 3 weeks. The other group, in addition to the pembrolizumab, will receive IV sacituzumab govitecan weekly for 2 weeks then 1 week off until unacceptable toxicity, disease progression, withdrawal of consent, or death. Study sites in the states of Florida and Georgia, and in Australia, Taiwan, and Turkey, opened in February 2023 with the aim of recruiting 614 participants. Overall survival over 4 years and PFS are the primary outcomes. QoL is a secondary outcome. More details at clinicaltrials.gov.

Unresectable metastatic NSCLC. Individuals with this type of lung cancer are being recruited for a nonrandomized, phase 1/2 study to determine whether a combination of amivantamab (Rybrevant) and capmatinib (Tabrecta) is tolerable and more effective than either therapy alone. The two drugs inhibit different stages of mesenchymal-epithelial transition (MET), a step in cell development that is crucial for metastasis because it enhances cell mobility, invasion, and resistance to apoptosis. In the phase 1 study, participants will start with twice-daily tablets of capmatinib and IV amivantamab once weekly for 4 weeks then every 2 weeks. Doses will be adjusted on the basis of toxicities. In phase 2, a new group of participants will receive the refined doses for up to 2 years until progression or death. The study opened at the Oncology Institute of Hope and Innovation in Whittier, Calif., in December 2020 with the aim of recruiting 161 participants. Sites are gearing up in five more U.S. states and in Canada, Europe, and Asia. Objective response rate is the primary outcome of the phase 2 study, with OS and QoL as secondary endpoints. More details at clinicaltrials.gov.

Locally advanced or metastatic NSCLC with EGFR-exon-20 insertion mutations. Adults with this diagnosis who have not yet been treated and are not amenable to curative surgery or radiotherapy are sought for a randomized, open-label phase 3 trial testing whether investigational EGFR tyrosine-kinase inhibitor furmonertinib (from ArriVent) is more effective than chemotherapy for first-line treatment. Chemotherapy is currently standard of care in this indication with targeted therapies amivantamab-vmjw (Rybrevant) and mobocertinib succinate (Exkivity) as second-line options. Individuals in the trial will take daily tablets of furmonertinib or platinum-based IV chemotherapy for 32 months or until disease progression, whichever comes first. The study opened in December in sites across 15 U.S. states. Centers in a further nine states are gearing up, with the aim of enrolling a total of 375 people. The primary outcome is PFS. QoL and OS at 5 years are secondary outcomes. More details at clinicaltrials.gov.

NSCLC previously treated with at least one platinum chemotherapy and at least one targeted treatment. Adults aged 70 or younger with this type of lung cancer are eligible for a National Cancer Institute phase 2 investigation of autologous T-cell receptor (TCR) gene therapy. Unlike CAR T-cell therapy, which only reaches the 20% of cancer neoantigens that are expressed extracellularly, TCR technology can target the 80% of abnormal proteins that are expressed inside cancer cells. Participants will receive a single infusion of their own engineered T cells. They will attend follow-up visits every 3-6 months for 3 years, then join a long-term study in which they will be followed for 12 more years. The National Institutes of Health Clinical Center in Bethesda, Md., started recruiting for the trial’s 210 participants with one of a selection of solid cancers in February 2023. Response rate measured by objective tumor regression is the primary endpoint. OS and QoL will not be tracked. More details at clinicaltrials.gov.

All trial information is from the National Institutes of Health U.S. National Library of Medicine (online at clinicaltrials.gov).

A version of this article first appeared on Medscape.com.

Editor’s note: This article was changed on 24 February to remove an incorrect reference to osimertinib.