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Preop nivolumab plus chemo ‘a quantum leap’ in NSCLC therapy
NEW ORLEANS – For patients with resectable non–small cell lung cancer (NSCLC), further
The combination resulted in significantly longer event-free survival and a 14-fold greater chance of having a pathological complete response compared with chemotherapy alone.
Adding immunotherapy (IO) to chemotherapy in the neoadjuvant setting represents “a quantum leap in lung cancer therapy,” commented David P. Carbone, MD, PhD, director of the James Thoracic Center at Ohio State University, Columbus.
“Combining IO with surgery I think is a new standard of care and will almost certainly improve overall survival [OS] in early-stage disease, for the first time in decades, in my entire career,” he said while discussing the new data at the annual meeting of the American Association for Cancer Research.
The data come from the phase 3 CheckMate 816 study, an open-label trial involving patients with stage IB-IIIA resectable NSCLC. The study was published in the New England Journal of Medicine to coincide with the presentation.
Results from this trial were the basis of the Food and Drug Administration’s recent approval of neoadjuvant therapy with nivolumab (Opdivo) and platinum-based chemotherapy in this population, which one expert described as “a turning point in how we treat resectable NSCLC.”
“Neoadjuvant IO has multiple theoretical advantages of over adjuvant IO,” commented Dr. Carbone. “CheckMate 816 suggests that practice will prove this theory correct.”
Importance of Neoadjuvant Immunotherapy
New details of the results were presented at the meeting by Nicolas Girard, MD, from Institut Curie in Paris.
Among 358 patients in the trial, the median event-free survival (EFS) was 31.6 months for patients randomly assigned to the combination of the immune checkpoint inhibitor nivolumab and platinum-base chemotherapy, compared with 20.8 months for patients assigned to chemotherapy alone. This translated into a hazard ratio for disease recurrence, progression, or death of 0.63 (P = .005).
In addition, 24% of patients assigned to the nivolumab plus chemotherapy arm had a pathological complete response (pCR) to neoadjuvant therapy, compared with only 2.2% of those assigned to chemotherapy alone (P < .001).
Dr. Girard said the study provided important clues to the importance of neoadjuvant therapy for improving objective responses.
“Event-free survival was improved in patients with a pathological complete response, compared with those without, suggesting pCR is a surrogate endpoint for long-term outcomes in resectable non–small cell lung cancer, and this is the first time [this has been shown] in a randomized, phase 3 study,” he said.
Neoadjuvant slow to catch on
About one -fourth of all patients who are diagnosed with NSCLC have resectable disease, Dr. Girard and colleagues noted. However, 30%-55% of patients who undergo surgery with curative intent ultimately experience recurrence and die from their disease.
Neoadjuvant therapy may improve chances for complete resection and prevent or delay recurrence after surgery, but the absolute difference in 5-year recurrence-free survival and OS with neoadjuvant chemotherapy alone is only about 6%, they noted.
The new results suggest that adding neoadjuvant immunotherapy to chemotherapy will improve upon this, although so far, the OS data from this trial are immature.
In an interim analysis, the median OS rate was 83% at 2 years for patients treated with nivolumab plus chemotherapy, compared with 71% for patients treated with chemotherapy alone. The published results show a significant improvement in the two primary endpoints – EFS and pCR.
In an editorial accompanying the study, Christine M. Lovly, MD, PhD, from the Vanderbilt-Ingram Cancer Center at Vanderbilt University in Nashville, Tenn., commented that the results of the trial are expected to change practice.
“However, several issues remain to be addressed,” she wrote. “First, is a pathological complete response predictive of event-free survival? Can event-free survival be used as a surrogate endpoint for overall survival? Second, although not mandated for this trial, approximately 20% of the patients received postoperative therapy. Is adjuvant therapy necessary? What criteria should be used to select patients to receive adjuvant therapy?”
Dr. Lovly also pointed out that patients with tumors harboring mutations in the genes EGFR or ALK were excluded from the trial.
“Therefore, implementation of neoadjuvant therapies requires biomarker testing for patients with early-stage disease at the time of diagnosis, a considerable alteration in the routine practice of lung-cancer medicine,” she wrote.
Fears of delaying surgery
In an interview, Upal Basu Roy, PhD, MPH, executive director of research at the LUNGevity Foundation, who was not involved in the study, gave a reason why neoadjuvant therapy is not more widely prescribed for patients with resectable NSCLC.
“Clinicians are always scared, and I think patients are as well, that giving a treatment before surgery would delay surgery,” he said. “When patients are diagnosed with lung cancer and they’re told that surgery offers the potential of cure and then hear that you’re giving them a treatment before surgery and that treatment may potentially delay surgery, that is a huge source of anxiety.”
In addition, clinicians until recently were unsure about which patients were most likely to benefit from neoadjuvant therapy when the only option was chemotherapy, “but that’s changing, obviously, with the recent approval of neoadjuvant nivolumab through CheckMate 816,” he said.
CheckMate 816 details
In the CheckMate 816 study, investigators enrolled patients with newly diagnosed resectable NSCLC (stage IB-IIIA) who had good performance status and no known sensitizing EGFR mutations or ALK alterations.
After stratification by stage, programmed death–1 status, and sex, the team randomly assigned patients to receive either nivolumab 360 mg plus platinum-based chemotherapy every 3 weeks for a total of three cycles or chemotherapy alone.
At the end of neoadjuvant therapy, patients underwent radiologic restaging and surgery within 6 weeks. Patients could also receive optional adjuvant chemotherapy with or without radiotherapy.
Of the 179 patients in each arm, 176 received the assigned treatment. In all, 149 (83%) of those assigned to the combination had definitive surgery, as did 135 (75%) of those assigned to chemotherapy alone.
In addition, 35 patients (20%) of those assigned to nivolumab-chemo and 56 (32%) assigned to chemotherapy alone received adjuvant therapy.
The coprimary endpoints of EFS and pCR favored the combination, both in the overall population and across most subgroups, including patients younger than 65, men and women, Asian patients, those with stage IIIA disease, nonsquamous histology, current smokers and never-smokers, and patients with higher levels of PD–ligand 1 expression.
The rates of grade 3 or 4 treatment-related adverse events were similar between the groups, at 33.5% with the combination and 36.9% with chemotherapy alone.
Rates of adverse events leading to study discontinuation, treatment-related adverse events, and surgery-related adverse events were similar between the groups. There were two treatment-related deaths, both in the chemotherapy-alone arm.
CheckMate 816 was funded by Bristol-Myers Squibb (manufacturer of nivolumab). Girard has consulted for and has received grant support from Bristol-Myers Squibb and other companies. Dr. Carbone has consulted for Bristol-Myers Squibb and other companies. Dr. Lovly has consulted for various companies. Dr. Roy has received grants from Bristol-Myers Squibb to the LUNGevity Foundation.
A version of this article first appeared on Medscape.com.
NEW ORLEANS – For patients with resectable non–small cell lung cancer (NSCLC), further
The combination resulted in significantly longer event-free survival and a 14-fold greater chance of having a pathological complete response compared with chemotherapy alone.
Adding immunotherapy (IO) to chemotherapy in the neoadjuvant setting represents “a quantum leap in lung cancer therapy,” commented David P. Carbone, MD, PhD, director of the James Thoracic Center at Ohio State University, Columbus.
“Combining IO with surgery I think is a new standard of care and will almost certainly improve overall survival [OS] in early-stage disease, for the first time in decades, in my entire career,” he said while discussing the new data at the annual meeting of the American Association for Cancer Research.
The data come from the phase 3 CheckMate 816 study, an open-label trial involving patients with stage IB-IIIA resectable NSCLC. The study was published in the New England Journal of Medicine to coincide with the presentation.
Results from this trial were the basis of the Food and Drug Administration’s recent approval of neoadjuvant therapy with nivolumab (Opdivo) and platinum-based chemotherapy in this population, which one expert described as “a turning point in how we treat resectable NSCLC.”
“Neoadjuvant IO has multiple theoretical advantages of over adjuvant IO,” commented Dr. Carbone. “CheckMate 816 suggests that practice will prove this theory correct.”
Importance of Neoadjuvant Immunotherapy
New details of the results were presented at the meeting by Nicolas Girard, MD, from Institut Curie in Paris.
Among 358 patients in the trial, the median event-free survival (EFS) was 31.6 months for patients randomly assigned to the combination of the immune checkpoint inhibitor nivolumab and platinum-base chemotherapy, compared with 20.8 months for patients assigned to chemotherapy alone. This translated into a hazard ratio for disease recurrence, progression, or death of 0.63 (P = .005).
In addition, 24% of patients assigned to the nivolumab plus chemotherapy arm had a pathological complete response (pCR) to neoadjuvant therapy, compared with only 2.2% of those assigned to chemotherapy alone (P < .001).
Dr. Girard said the study provided important clues to the importance of neoadjuvant therapy for improving objective responses.
“Event-free survival was improved in patients with a pathological complete response, compared with those without, suggesting pCR is a surrogate endpoint for long-term outcomes in resectable non–small cell lung cancer, and this is the first time [this has been shown] in a randomized, phase 3 study,” he said.
Neoadjuvant slow to catch on
About one -fourth of all patients who are diagnosed with NSCLC have resectable disease, Dr. Girard and colleagues noted. However, 30%-55% of patients who undergo surgery with curative intent ultimately experience recurrence and die from their disease.
Neoadjuvant therapy may improve chances for complete resection and prevent or delay recurrence after surgery, but the absolute difference in 5-year recurrence-free survival and OS with neoadjuvant chemotherapy alone is only about 6%, they noted.
The new results suggest that adding neoadjuvant immunotherapy to chemotherapy will improve upon this, although so far, the OS data from this trial are immature.
In an interim analysis, the median OS rate was 83% at 2 years for patients treated with nivolumab plus chemotherapy, compared with 71% for patients treated with chemotherapy alone. The published results show a significant improvement in the two primary endpoints – EFS and pCR.
In an editorial accompanying the study, Christine M. Lovly, MD, PhD, from the Vanderbilt-Ingram Cancer Center at Vanderbilt University in Nashville, Tenn., commented that the results of the trial are expected to change practice.
“However, several issues remain to be addressed,” she wrote. “First, is a pathological complete response predictive of event-free survival? Can event-free survival be used as a surrogate endpoint for overall survival? Second, although not mandated for this trial, approximately 20% of the patients received postoperative therapy. Is adjuvant therapy necessary? What criteria should be used to select patients to receive adjuvant therapy?”
Dr. Lovly also pointed out that patients with tumors harboring mutations in the genes EGFR or ALK were excluded from the trial.
“Therefore, implementation of neoadjuvant therapies requires biomarker testing for patients with early-stage disease at the time of diagnosis, a considerable alteration in the routine practice of lung-cancer medicine,” she wrote.
Fears of delaying surgery
In an interview, Upal Basu Roy, PhD, MPH, executive director of research at the LUNGevity Foundation, who was not involved in the study, gave a reason why neoadjuvant therapy is not more widely prescribed for patients with resectable NSCLC.
“Clinicians are always scared, and I think patients are as well, that giving a treatment before surgery would delay surgery,” he said. “When patients are diagnosed with lung cancer and they’re told that surgery offers the potential of cure and then hear that you’re giving them a treatment before surgery and that treatment may potentially delay surgery, that is a huge source of anxiety.”
In addition, clinicians until recently were unsure about which patients were most likely to benefit from neoadjuvant therapy when the only option was chemotherapy, “but that’s changing, obviously, with the recent approval of neoadjuvant nivolumab through CheckMate 816,” he said.
CheckMate 816 details
In the CheckMate 816 study, investigators enrolled patients with newly diagnosed resectable NSCLC (stage IB-IIIA) who had good performance status and no known sensitizing EGFR mutations or ALK alterations.
After stratification by stage, programmed death–1 status, and sex, the team randomly assigned patients to receive either nivolumab 360 mg plus platinum-based chemotherapy every 3 weeks for a total of three cycles or chemotherapy alone.
At the end of neoadjuvant therapy, patients underwent radiologic restaging and surgery within 6 weeks. Patients could also receive optional adjuvant chemotherapy with or without radiotherapy.
Of the 179 patients in each arm, 176 received the assigned treatment. In all, 149 (83%) of those assigned to the combination had definitive surgery, as did 135 (75%) of those assigned to chemotherapy alone.
In addition, 35 patients (20%) of those assigned to nivolumab-chemo and 56 (32%) assigned to chemotherapy alone received adjuvant therapy.
The coprimary endpoints of EFS and pCR favored the combination, both in the overall population and across most subgroups, including patients younger than 65, men and women, Asian patients, those with stage IIIA disease, nonsquamous histology, current smokers and never-smokers, and patients with higher levels of PD–ligand 1 expression.
The rates of grade 3 or 4 treatment-related adverse events were similar between the groups, at 33.5% with the combination and 36.9% with chemotherapy alone.
Rates of adverse events leading to study discontinuation, treatment-related adverse events, and surgery-related adverse events were similar between the groups. There were two treatment-related deaths, both in the chemotherapy-alone arm.
CheckMate 816 was funded by Bristol-Myers Squibb (manufacturer of nivolumab). Girard has consulted for and has received grant support from Bristol-Myers Squibb and other companies. Dr. Carbone has consulted for Bristol-Myers Squibb and other companies. Dr. Lovly has consulted for various companies. Dr. Roy has received grants from Bristol-Myers Squibb to the LUNGevity Foundation.
A version of this article first appeared on Medscape.com.
NEW ORLEANS – For patients with resectable non–small cell lung cancer (NSCLC), further
The combination resulted in significantly longer event-free survival and a 14-fold greater chance of having a pathological complete response compared with chemotherapy alone.
Adding immunotherapy (IO) to chemotherapy in the neoadjuvant setting represents “a quantum leap in lung cancer therapy,” commented David P. Carbone, MD, PhD, director of the James Thoracic Center at Ohio State University, Columbus.
“Combining IO with surgery I think is a new standard of care and will almost certainly improve overall survival [OS] in early-stage disease, for the first time in decades, in my entire career,” he said while discussing the new data at the annual meeting of the American Association for Cancer Research.
The data come from the phase 3 CheckMate 816 study, an open-label trial involving patients with stage IB-IIIA resectable NSCLC. The study was published in the New England Journal of Medicine to coincide with the presentation.
Results from this trial were the basis of the Food and Drug Administration’s recent approval of neoadjuvant therapy with nivolumab (Opdivo) and platinum-based chemotherapy in this population, which one expert described as “a turning point in how we treat resectable NSCLC.”
“Neoadjuvant IO has multiple theoretical advantages of over adjuvant IO,” commented Dr. Carbone. “CheckMate 816 suggests that practice will prove this theory correct.”
Importance of Neoadjuvant Immunotherapy
New details of the results were presented at the meeting by Nicolas Girard, MD, from Institut Curie in Paris.
Among 358 patients in the trial, the median event-free survival (EFS) was 31.6 months for patients randomly assigned to the combination of the immune checkpoint inhibitor nivolumab and platinum-base chemotherapy, compared with 20.8 months for patients assigned to chemotherapy alone. This translated into a hazard ratio for disease recurrence, progression, or death of 0.63 (P = .005).
In addition, 24% of patients assigned to the nivolumab plus chemotherapy arm had a pathological complete response (pCR) to neoadjuvant therapy, compared with only 2.2% of those assigned to chemotherapy alone (P < .001).
Dr. Girard said the study provided important clues to the importance of neoadjuvant therapy for improving objective responses.
“Event-free survival was improved in patients with a pathological complete response, compared with those without, suggesting pCR is a surrogate endpoint for long-term outcomes in resectable non–small cell lung cancer, and this is the first time [this has been shown] in a randomized, phase 3 study,” he said.
Neoadjuvant slow to catch on
About one -fourth of all patients who are diagnosed with NSCLC have resectable disease, Dr. Girard and colleagues noted. However, 30%-55% of patients who undergo surgery with curative intent ultimately experience recurrence and die from their disease.
Neoadjuvant therapy may improve chances for complete resection and prevent or delay recurrence after surgery, but the absolute difference in 5-year recurrence-free survival and OS with neoadjuvant chemotherapy alone is only about 6%, they noted.
The new results suggest that adding neoadjuvant immunotherapy to chemotherapy will improve upon this, although so far, the OS data from this trial are immature.
In an interim analysis, the median OS rate was 83% at 2 years for patients treated with nivolumab plus chemotherapy, compared with 71% for patients treated with chemotherapy alone. The published results show a significant improvement in the two primary endpoints – EFS and pCR.
In an editorial accompanying the study, Christine M. Lovly, MD, PhD, from the Vanderbilt-Ingram Cancer Center at Vanderbilt University in Nashville, Tenn., commented that the results of the trial are expected to change practice.
“However, several issues remain to be addressed,” she wrote. “First, is a pathological complete response predictive of event-free survival? Can event-free survival be used as a surrogate endpoint for overall survival? Second, although not mandated for this trial, approximately 20% of the patients received postoperative therapy. Is adjuvant therapy necessary? What criteria should be used to select patients to receive adjuvant therapy?”
Dr. Lovly also pointed out that patients with tumors harboring mutations in the genes EGFR or ALK were excluded from the trial.
“Therefore, implementation of neoadjuvant therapies requires biomarker testing for patients with early-stage disease at the time of diagnosis, a considerable alteration in the routine practice of lung-cancer medicine,” she wrote.
Fears of delaying surgery
In an interview, Upal Basu Roy, PhD, MPH, executive director of research at the LUNGevity Foundation, who was not involved in the study, gave a reason why neoadjuvant therapy is not more widely prescribed for patients with resectable NSCLC.
“Clinicians are always scared, and I think patients are as well, that giving a treatment before surgery would delay surgery,” he said. “When patients are diagnosed with lung cancer and they’re told that surgery offers the potential of cure and then hear that you’re giving them a treatment before surgery and that treatment may potentially delay surgery, that is a huge source of anxiety.”
In addition, clinicians until recently were unsure about which patients were most likely to benefit from neoadjuvant therapy when the only option was chemotherapy, “but that’s changing, obviously, with the recent approval of neoadjuvant nivolumab through CheckMate 816,” he said.
CheckMate 816 details
In the CheckMate 816 study, investigators enrolled patients with newly diagnosed resectable NSCLC (stage IB-IIIA) who had good performance status and no known sensitizing EGFR mutations or ALK alterations.
After stratification by stage, programmed death–1 status, and sex, the team randomly assigned patients to receive either nivolumab 360 mg plus platinum-based chemotherapy every 3 weeks for a total of three cycles or chemotherapy alone.
At the end of neoadjuvant therapy, patients underwent radiologic restaging and surgery within 6 weeks. Patients could also receive optional adjuvant chemotherapy with or without radiotherapy.
Of the 179 patients in each arm, 176 received the assigned treatment. In all, 149 (83%) of those assigned to the combination had definitive surgery, as did 135 (75%) of those assigned to chemotherapy alone.
In addition, 35 patients (20%) of those assigned to nivolumab-chemo and 56 (32%) assigned to chemotherapy alone received adjuvant therapy.
The coprimary endpoints of EFS and pCR favored the combination, both in the overall population and across most subgroups, including patients younger than 65, men and women, Asian patients, those with stage IIIA disease, nonsquamous histology, current smokers and never-smokers, and patients with higher levels of PD–ligand 1 expression.
The rates of grade 3 or 4 treatment-related adverse events were similar between the groups, at 33.5% with the combination and 36.9% with chemotherapy alone.
Rates of adverse events leading to study discontinuation, treatment-related adverse events, and surgery-related adverse events were similar between the groups. There were two treatment-related deaths, both in the chemotherapy-alone arm.
CheckMate 816 was funded by Bristol-Myers Squibb (manufacturer of nivolumab). Girard has consulted for and has received grant support from Bristol-Myers Squibb and other companies. Dr. Carbone has consulted for Bristol-Myers Squibb and other companies. Dr. Lovly has consulted for various companies. Dr. Roy has received grants from Bristol-Myers Squibb to the LUNGevity Foundation.
A version of this article first appeared on Medscape.com.
AT AACR 2022
Made-to-order TILs effective against metastatic melanoma
NEW ORLEANS – In just over one-third of patients with metastatic melanoma who had experienced disease progression while receiving multiple prior lines of therapy, including immunotherapy and targeted agents,
The product, called lifileucel, is custom made for each patient and utilizes tumor-infiltrating lymphocytes (TILs) extracted from tumor lesions. This approach differs from other cell-based therapies, such as chimeric antigen receptor (CAR) T cell therapy, which utilizes T cells collected from the patient’s blood.
The new results come from a phase 2 trial conducted in 66 patients with previously treated unresectable or metastatic melanoma who received a single dose of the product. The objective response rate was 36.4%.
“Lifileucel has demonstrated efficacy and durability of response for patients with metastatic melanoma and represents a viable therapeutic option warranting further investigation,” commented Jason Alan Chesney, MD, PhD, from the James Graham Brown Cancer Center, the University of Louisville (Ky.).
He presented the new data at the virtual American Association for Cancer Research (AACR) Annual Meeting 2021.
Customized cell therapy with TILs has been explored for the treatment of melanoma for more than a decade. Some researchers have reported durable response in 25% of patients.
However, “generalizing TIL therapy has been hampered by the complex and really not absolutely defined process for generating cells,” commented Philip Greenberg, MD, professor and head of the program in immunology in the Clinical Research Division of the Fred Hutchinson Cancer Center, Seattle, who was the invited discussant.
The current study demonstrates that cell generation can be performed at a centralized facility that has the required technical expertise. The patient-specific products are then disseminated to multiple centers, he said. The study also demonstrates that TILs can be successfully generated from tumor sites other than skin or lymph nodes.
“Toxicity was, however, significant, although it was generally manageable, and it did occur early, generally within the first 2 weeks,” he noted.
Patient-derived product
Lifileucel is a tailor-made immunotherapy product created from melanoma tumor tissues resected from lesions in skin, lymph nodes, liver, lung, peritoneum, musculoskeletal system, breast, or other visceral organs. The cells are shipped to a central manufacturing facility, whre the TILs are isolated, cultured, expanded, and reinvigorated. The cells are then harvested and cryopreserved. The process takes about 22 days. The cryopreserved product is then shipped back to the treating facility.
Prior to receiving the expanded and rejuvenated TILs, patients undergo myeloablative conditioning with cyclophosphamide followed by fludarabine. The TILs are then delivered in a single infusion, followed by administration of up to six doses of interleukin-2 (IL-2).
Details from clinical trial
At the meeting, Dr. Chesney reported details on the 66 patients in the trial. They had metastatic melanoma that was progressing on treatment. The mean number of prior lines of therapy was 3.3. All of the patients had received prior anti–programmed cell death protein–1 (PD-1) or programmed cell death–ligand-1 (PD-L1) agents; 53 had received a cytotoxic T lymphocyte protein 4 (CTLA-4) inhibitor; and 15 had received a BRAF/MEK inhibitor.
These patients had a mean of six baseline target and nontarget lesions, and 28 patients had liver and/or brain metastases.
Just over a third of patients (24 of 66, 36.4%) had an objective response; three patients had a complete response; and 21 had a partial response. In addition, 29 patients had stable disease, and nine experienced disease progression. Four patients had not undergone the first assessment at the time of data cutoff.
After a median follow-up of 28.1 months, the median duration of response was not reached. It ranged from 2.2 to > 35.2 months.
Since the data cutoff in April 2020, reduction of tumor burden has occurred in 50 of 62 evaluable patients. Reductions in the target lesion sum of diameters has occurred in 11 patients. In one patient, a partial response converted to a complete response 24 months after infusion, Dr. Chesney noted.
The mean number of TILs infused was 27.3 billion (27.3 x 109). Appropriate amounts of TILs were manufactured from tumor samples acquired across all sites, and reductions in target lesion sum of diameter were seen across the range of TIL total cell doses.
All patients experienced at least one adverse event of any grade; all but two experienced grade 3 or 4 adverse events. Two patients died, one as a result of intra-abdominal hemorrhage considered possibly related to TIL therapy, and one from acute respiratory failure deemed not related to TILs.
The most common grade 3 or 4 adverse events were thrombocytopenia, anemia, febrile neutropenia, neutropenia, hypophosphatemia, and lymphopenia.
“The adverse event profile was manageable and was consistent with the underlying and the known profiles of the nonmyeloblative depletion regimen and IL-2,” Dr. Chesney said.
The decreasing frequency of adverse events over time reflects the potential benefit of the one-time infusion, and no new safety risks have been identified during more than 2 years of follow-up, he added.
Remaining questions, next steps
Dr. Greenberg commented that the one of the limitations of the study is that the investigators did not characterize the TIL product.
“Studies have predicted that there’s a particular type of cell, a stemlike T cell, that’s responsible for mediating the efficacy,” he commented. He referred to research from Steven Rosenberg, MD, PhD, and colleagues at the National Cancer Institute, where TILs were first used in 2002.
Dr. Greenberg also raised the question of whether high-dose IL-2 was required post infusion, given that the patients were lymphodepleted before receiving lifileucel.
Future steps for TIL therapy, he said, should include identification of biomarkers for success or failure; strategies to enhance generation and expansion of tumor-reactive T cells; postinfusion strategies, such as using vaccines and/or checkpoint inhibitors to increase therapeutic activity; genetic modifications to enhance the function of TILs in the tumor microenvironment; and research into other tumor types that may be effectively treated with TILs.
The study was supported by Iovance Biotherapeutics. Dr. Chesney has received research funding from Iovance and other companies and has consulted for Amgen and Replimune. Dr. Greenberg has served on scientific advisory boards, has received grant/research support, and owns stock in several companies that do not include Iovance.
A version of this article first appeared on Medscape.com.
NEW ORLEANS – In just over one-third of patients with metastatic melanoma who had experienced disease progression while receiving multiple prior lines of therapy, including immunotherapy and targeted agents,
The product, called lifileucel, is custom made for each patient and utilizes tumor-infiltrating lymphocytes (TILs) extracted from tumor lesions. This approach differs from other cell-based therapies, such as chimeric antigen receptor (CAR) T cell therapy, which utilizes T cells collected from the patient’s blood.
The new results come from a phase 2 trial conducted in 66 patients with previously treated unresectable or metastatic melanoma who received a single dose of the product. The objective response rate was 36.4%.
“Lifileucel has demonstrated efficacy and durability of response for patients with metastatic melanoma and represents a viable therapeutic option warranting further investigation,” commented Jason Alan Chesney, MD, PhD, from the James Graham Brown Cancer Center, the University of Louisville (Ky.).
He presented the new data at the virtual American Association for Cancer Research (AACR) Annual Meeting 2021.
Customized cell therapy with TILs has been explored for the treatment of melanoma for more than a decade. Some researchers have reported durable response in 25% of patients.
However, “generalizing TIL therapy has been hampered by the complex and really not absolutely defined process for generating cells,” commented Philip Greenberg, MD, professor and head of the program in immunology in the Clinical Research Division of the Fred Hutchinson Cancer Center, Seattle, who was the invited discussant.
The current study demonstrates that cell generation can be performed at a centralized facility that has the required technical expertise. The patient-specific products are then disseminated to multiple centers, he said. The study also demonstrates that TILs can be successfully generated from tumor sites other than skin or lymph nodes.
“Toxicity was, however, significant, although it was generally manageable, and it did occur early, generally within the first 2 weeks,” he noted.
Patient-derived product
Lifileucel is a tailor-made immunotherapy product created from melanoma tumor tissues resected from lesions in skin, lymph nodes, liver, lung, peritoneum, musculoskeletal system, breast, or other visceral organs. The cells are shipped to a central manufacturing facility, whre the TILs are isolated, cultured, expanded, and reinvigorated. The cells are then harvested and cryopreserved. The process takes about 22 days. The cryopreserved product is then shipped back to the treating facility.
Prior to receiving the expanded and rejuvenated TILs, patients undergo myeloablative conditioning with cyclophosphamide followed by fludarabine. The TILs are then delivered in a single infusion, followed by administration of up to six doses of interleukin-2 (IL-2).
Details from clinical trial
At the meeting, Dr. Chesney reported details on the 66 patients in the trial. They had metastatic melanoma that was progressing on treatment. The mean number of prior lines of therapy was 3.3. All of the patients had received prior anti–programmed cell death protein–1 (PD-1) or programmed cell death–ligand-1 (PD-L1) agents; 53 had received a cytotoxic T lymphocyte protein 4 (CTLA-4) inhibitor; and 15 had received a BRAF/MEK inhibitor.
These patients had a mean of six baseline target and nontarget lesions, and 28 patients had liver and/or brain metastases.
Just over a third of patients (24 of 66, 36.4%) had an objective response; three patients had a complete response; and 21 had a partial response. In addition, 29 patients had stable disease, and nine experienced disease progression. Four patients had not undergone the first assessment at the time of data cutoff.
After a median follow-up of 28.1 months, the median duration of response was not reached. It ranged from 2.2 to > 35.2 months.
Since the data cutoff in April 2020, reduction of tumor burden has occurred in 50 of 62 evaluable patients. Reductions in the target lesion sum of diameters has occurred in 11 patients. In one patient, a partial response converted to a complete response 24 months after infusion, Dr. Chesney noted.
The mean number of TILs infused was 27.3 billion (27.3 x 109). Appropriate amounts of TILs were manufactured from tumor samples acquired across all sites, and reductions in target lesion sum of diameter were seen across the range of TIL total cell doses.
All patients experienced at least one adverse event of any grade; all but two experienced grade 3 or 4 adverse events. Two patients died, one as a result of intra-abdominal hemorrhage considered possibly related to TIL therapy, and one from acute respiratory failure deemed not related to TILs.
The most common grade 3 or 4 adverse events were thrombocytopenia, anemia, febrile neutropenia, neutropenia, hypophosphatemia, and lymphopenia.
“The adverse event profile was manageable and was consistent with the underlying and the known profiles of the nonmyeloblative depletion regimen and IL-2,” Dr. Chesney said.
The decreasing frequency of adverse events over time reflects the potential benefit of the one-time infusion, and no new safety risks have been identified during more than 2 years of follow-up, he added.
Remaining questions, next steps
Dr. Greenberg commented that the one of the limitations of the study is that the investigators did not characterize the TIL product.
“Studies have predicted that there’s a particular type of cell, a stemlike T cell, that’s responsible for mediating the efficacy,” he commented. He referred to research from Steven Rosenberg, MD, PhD, and colleagues at the National Cancer Institute, where TILs were first used in 2002.
Dr. Greenberg also raised the question of whether high-dose IL-2 was required post infusion, given that the patients were lymphodepleted before receiving lifileucel.
Future steps for TIL therapy, he said, should include identification of biomarkers for success or failure; strategies to enhance generation and expansion of tumor-reactive T cells; postinfusion strategies, such as using vaccines and/or checkpoint inhibitors to increase therapeutic activity; genetic modifications to enhance the function of TILs in the tumor microenvironment; and research into other tumor types that may be effectively treated with TILs.
The study was supported by Iovance Biotherapeutics. Dr. Chesney has received research funding from Iovance and other companies and has consulted for Amgen and Replimune. Dr. Greenberg has served on scientific advisory boards, has received grant/research support, and owns stock in several companies that do not include Iovance.
A version of this article first appeared on Medscape.com.
NEW ORLEANS – In just over one-third of patients with metastatic melanoma who had experienced disease progression while receiving multiple prior lines of therapy, including immunotherapy and targeted agents,
The product, called lifileucel, is custom made for each patient and utilizes tumor-infiltrating lymphocytes (TILs) extracted from tumor lesions. This approach differs from other cell-based therapies, such as chimeric antigen receptor (CAR) T cell therapy, which utilizes T cells collected from the patient’s blood.
The new results come from a phase 2 trial conducted in 66 patients with previously treated unresectable or metastatic melanoma who received a single dose of the product. The objective response rate was 36.4%.
“Lifileucel has demonstrated efficacy and durability of response for patients with metastatic melanoma and represents a viable therapeutic option warranting further investigation,” commented Jason Alan Chesney, MD, PhD, from the James Graham Brown Cancer Center, the University of Louisville (Ky.).
He presented the new data at the virtual American Association for Cancer Research (AACR) Annual Meeting 2021.
Customized cell therapy with TILs has been explored for the treatment of melanoma for more than a decade. Some researchers have reported durable response in 25% of patients.
However, “generalizing TIL therapy has been hampered by the complex and really not absolutely defined process for generating cells,” commented Philip Greenberg, MD, professor and head of the program in immunology in the Clinical Research Division of the Fred Hutchinson Cancer Center, Seattle, who was the invited discussant.
The current study demonstrates that cell generation can be performed at a centralized facility that has the required technical expertise. The patient-specific products are then disseminated to multiple centers, he said. The study also demonstrates that TILs can be successfully generated from tumor sites other than skin or lymph nodes.
“Toxicity was, however, significant, although it was generally manageable, and it did occur early, generally within the first 2 weeks,” he noted.
Patient-derived product
Lifileucel is a tailor-made immunotherapy product created from melanoma tumor tissues resected from lesions in skin, lymph nodes, liver, lung, peritoneum, musculoskeletal system, breast, or other visceral organs. The cells are shipped to a central manufacturing facility, whre the TILs are isolated, cultured, expanded, and reinvigorated. The cells are then harvested and cryopreserved. The process takes about 22 days. The cryopreserved product is then shipped back to the treating facility.
Prior to receiving the expanded and rejuvenated TILs, patients undergo myeloablative conditioning with cyclophosphamide followed by fludarabine. The TILs are then delivered in a single infusion, followed by administration of up to six doses of interleukin-2 (IL-2).
Details from clinical trial
At the meeting, Dr. Chesney reported details on the 66 patients in the trial. They had metastatic melanoma that was progressing on treatment. The mean number of prior lines of therapy was 3.3. All of the patients had received prior anti–programmed cell death protein–1 (PD-1) or programmed cell death–ligand-1 (PD-L1) agents; 53 had received a cytotoxic T lymphocyte protein 4 (CTLA-4) inhibitor; and 15 had received a BRAF/MEK inhibitor.
These patients had a mean of six baseline target and nontarget lesions, and 28 patients had liver and/or brain metastases.
Just over a third of patients (24 of 66, 36.4%) had an objective response; three patients had a complete response; and 21 had a partial response. In addition, 29 patients had stable disease, and nine experienced disease progression. Four patients had not undergone the first assessment at the time of data cutoff.
After a median follow-up of 28.1 months, the median duration of response was not reached. It ranged from 2.2 to > 35.2 months.
Since the data cutoff in April 2020, reduction of tumor burden has occurred in 50 of 62 evaluable patients. Reductions in the target lesion sum of diameters has occurred in 11 patients. In one patient, a partial response converted to a complete response 24 months after infusion, Dr. Chesney noted.
The mean number of TILs infused was 27.3 billion (27.3 x 109). Appropriate amounts of TILs were manufactured from tumor samples acquired across all sites, and reductions in target lesion sum of diameter were seen across the range of TIL total cell doses.
All patients experienced at least one adverse event of any grade; all but two experienced grade 3 or 4 adverse events. Two patients died, one as a result of intra-abdominal hemorrhage considered possibly related to TIL therapy, and one from acute respiratory failure deemed not related to TILs.
The most common grade 3 or 4 adverse events were thrombocytopenia, anemia, febrile neutropenia, neutropenia, hypophosphatemia, and lymphopenia.
“The adverse event profile was manageable and was consistent with the underlying and the known profiles of the nonmyeloblative depletion regimen and IL-2,” Dr. Chesney said.
The decreasing frequency of adverse events over time reflects the potential benefit of the one-time infusion, and no new safety risks have been identified during more than 2 years of follow-up, he added.
Remaining questions, next steps
Dr. Greenberg commented that the one of the limitations of the study is that the investigators did not characterize the TIL product.
“Studies have predicted that there’s a particular type of cell, a stemlike T cell, that’s responsible for mediating the efficacy,” he commented. He referred to research from Steven Rosenberg, MD, PhD, and colleagues at the National Cancer Institute, where TILs were first used in 2002.
Dr. Greenberg also raised the question of whether high-dose IL-2 was required post infusion, given that the patients were lymphodepleted before receiving lifileucel.
Future steps for TIL therapy, he said, should include identification of biomarkers for success or failure; strategies to enhance generation and expansion of tumor-reactive T cells; postinfusion strategies, such as using vaccines and/or checkpoint inhibitors to increase therapeutic activity; genetic modifications to enhance the function of TILs in the tumor microenvironment; and research into other tumor types that may be effectively treated with TILs.
The study was supported by Iovance Biotherapeutics. Dr. Chesney has received research funding from Iovance and other companies and has consulted for Amgen and Replimune. Dr. Greenberg has served on scientific advisory boards, has received grant/research support, and owns stock in several companies that do not include Iovance.
A version of this article first appeared on Medscape.com.
AT AACR 2022
Program successfully boosts pediatric cancer research
Even within the first year of implementation, the Research to Accelerate Cures and Equity (RACE) for Children Act has made an impact.
“In the year prior to RACE implementation, there were no approvals of therapeutics that required pediatric studies,” said Brittany Avin McKelvey, PhD, science policy analyst with Friends of Cancer Research and a childhood cancer survivor. “”
The legislation was passed by Congress in 2017 and took effect in August 2020. It requires that therapeutics that are approved for adult cancers be tested in pediatric cancers if those drugs are directed at molecular targets relevant for pediatric cancers.
The RACE Act also requires testing of therapeutics that are given an orphan drug designation. Such drugs were previously exempt from pediatric trials.
Dr. McKelvey presented the new findings at the annual meeting of the American Association for Cancer Research.
To evaluate the impact of the RACE Act during the first year of its implementation, her team assessed all the new cancer drugs approved between August 2019 and August 2021.
Nineteen drugs were identified; 63.2% were approved in the year before the RACE Act took effect, and 36.8% were approved after its implementation. The team suspects that the coronavirus pandemic may have contributed to the lower number of post-RACE approvals.
The researchers found that prior to implementation of the RACE Act, none of the approved adult cancer therapeutics were required to be studied in pediatric populations. But more than 90% of those had molecular targets that would have required that they be studied in pediatric cancers had the RACE Act been in place. The majority of these drugs were exempt because of their designation as orphan drugs.
In the post-RACE group, however, 42.9% of approved drugs are required to be studied in pediatric cancers. One example is infigratinib (Truseltiq), a drug for adult cholangiocarcinoma that targets the protein fibroblast growth factor receptor 2 (FGFR2). Truseltiq is an orphan drug – and thus would have been exempt prior to the RACE Act – but it will now be studied in pediatric patients with advanced or metastatic tumors harboring alterations in FGFR2.
“I find these results encouraging, but it is still very early,” said John Maris, MD, an attending physician and professor of pediatrics at the Children’s Hospital of Philadelphia, who was not involved in the study. “This is only 1 year into implementation, and this legislation will be around for a long time.”
In an interview, Dr. McKelvey noted that although a handful of clinical trials for pediatric cancers have been launched since implementation of RACE, many drugs are still being waived for pediatric study even when a relevant mechanism of action is present – largely because the extremely low incidence of many childhood cancers makes it impractical or, in some cases, impossible to conduct such studies. “This highlights the need for additional opportunities to help facilitate and encourage robust pediatric studies,” she said.
The main limitation of the study is that it examined data 1 year after the implementation of the RACE Act; further analysis is needed to determine the full extent of its impact, Dr. McKelvey said. “The true measure of success will be determined by whether increased pediatric studies actually translate to label expansions for pediatric patient populations and access to these therapies.”
The study was supported by funding from Friends of Cancer Research.
A version of this article first appeared on Medscape.com.
Even within the first year of implementation, the Research to Accelerate Cures and Equity (RACE) for Children Act has made an impact.
“In the year prior to RACE implementation, there were no approvals of therapeutics that required pediatric studies,” said Brittany Avin McKelvey, PhD, science policy analyst with Friends of Cancer Research and a childhood cancer survivor. “”
The legislation was passed by Congress in 2017 and took effect in August 2020. It requires that therapeutics that are approved for adult cancers be tested in pediatric cancers if those drugs are directed at molecular targets relevant for pediatric cancers.
The RACE Act also requires testing of therapeutics that are given an orphan drug designation. Such drugs were previously exempt from pediatric trials.
Dr. McKelvey presented the new findings at the annual meeting of the American Association for Cancer Research.
To evaluate the impact of the RACE Act during the first year of its implementation, her team assessed all the new cancer drugs approved between August 2019 and August 2021.
Nineteen drugs were identified; 63.2% were approved in the year before the RACE Act took effect, and 36.8% were approved after its implementation. The team suspects that the coronavirus pandemic may have contributed to the lower number of post-RACE approvals.
The researchers found that prior to implementation of the RACE Act, none of the approved adult cancer therapeutics were required to be studied in pediatric populations. But more than 90% of those had molecular targets that would have required that they be studied in pediatric cancers had the RACE Act been in place. The majority of these drugs were exempt because of their designation as orphan drugs.
In the post-RACE group, however, 42.9% of approved drugs are required to be studied in pediatric cancers. One example is infigratinib (Truseltiq), a drug for adult cholangiocarcinoma that targets the protein fibroblast growth factor receptor 2 (FGFR2). Truseltiq is an orphan drug – and thus would have been exempt prior to the RACE Act – but it will now be studied in pediatric patients with advanced or metastatic tumors harboring alterations in FGFR2.
“I find these results encouraging, but it is still very early,” said John Maris, MD, an attending physician and professor of pediatrics at the Children’s Hospital of Philadelphia, who was not involved in the study. “This is only 1 year into implementation, and this legislation will be around for a long time.”
In an interview, Dr. McKelvey noted that although a handful of clinical trials for pediatric cancers have been launched since implementation of RACE, many drugs are still being waived for pediatric study even when a relevant mechanism of action is present – largely because the extremely low incidence of many childhood cancers makes it impractical or, in some cases, impossible to conduct such studies. “This highlights the need for additional opportunities to help facilitate and encourage robust pediatric studies,” she said.
The main limitation of the study is that it examined data 1 year after the implementation of the RACE Act; further analysis is needed to determine the full extent of its impact, Dr. McKelvey said. “The true measure of success will be determined by whether increased pediatric studies actually translate to label expansions for pediatric patient populations and access to these therapies.”
The study was supported by funding from Friends of Cancer Research.
A version of this article first appeared on Medscape.com.
Even within the first year of implementation, the Research to Accelerate Cures and Equity (RACE) for Children Act has made an impact.
“In the year prior to RACE implementation, there were no approvals of therapeutics that required pediatric studies,” said Brittany Avin McKelvey, PhD, science policy analyst with Friends of Cancer Research and a childhood cancer survivor. “”
The legislation was passed by Congress in 2017 and took effect in August 2020. It requires that therapeutics that are approved for adult cancers be tested in pediatric cancers if those drugs are directed at molecular targets relevant for pediatric cancers.
The RACE Act also requires testing of therapeutics that are given an orphan drug designation. Such drugs were previously exempt from pediatric trials.
Dr. McKelvey presented the new findings at the annual meeting of the American Association for Cancer Research.
To evaluate the impact of the RACE Act during the first year of its implementation, her team assessed all the new cancer drugs approved between August 2019 and August 2021.
Nineteen drugs were identified; 63.2% were approved in the year before the RACE Act took effect, and 36.8% were approved after its implementation. The team suspects that the coronavirus pandemic may have contributed to the lower number of post-RACE approvals.
The researchers found that prior to implementation of the RACE Act, none of the approved adult cancer therapeutics were required to be studied in pediatric populations. But more than 90% of those had molecular targets that would have required that they be studied in pediatric cancers had the RACE Act been in place. The majority of these drugs were exempt because of their designation as orphan drugs.
In the post-RACE group, however, 42.9% of approved drugs are required to be studied in pediatric cancers. One example is infigratinib (Truseltiq), a drug for adult cholangiocarcinoma that targets the protein fibroblast growth factor receptor 2 (FGFR2). Truseltiq is an orphan drug – and thus would have been exempt prior to the RACE Act – but it will now be studied in pediatric patients with advanced or metastatic tumors harboring alterations in FGFR2.
“I find these results encouraging, but it is still very early,” said John Maris, MD, an attending physician and professor of pediatrics at the Children’s Hospital of Philadelphia, who was not involved in the study. “This is only 1 year into implementation, and this legislation will be around for a long time.”
In an interview, Dr. McKelvey noted that although a handful of clinical trials for pediatric cancers have been launched since implementation of RACE, many drugs are still being waived for pediatric study even when a relevant mechanism of action is present – largely because the extremely low incidence of many childhood cancers makes it impractical or, in some cases, impossible to conduct such studies. “This highlights the need for additional opportunities to help facilitate and encourage robust pediatric studies,” she said.
The main limitation of the study is that it examined data 1 year after the implementation of the RACE Act; further analysis is needed to determine the full extent of its impact, Dr. McKelvey said. “The true measure of success will be determined by whether increased pediatric studies actually translate to label expansions for pediatric patient populations and access to these therapies.”
The study was supported by funding from Friends of Cancer Research.
A version of this article first appeared on Medscape.com.
FROM AACR 2022
Recurrent DCIS can be genetically distinct from primary lesion
according to a study presented at the annual meeting of the American Association for Cancer Research.
If these findings of de novo tumor recurrences hold true, “it should change how you should treat the patients in the clinic,” commented lead author Tanjina Kader, PhD, a postdoctoral researcher in the department of oncology at the Peter MacCallum Cancer Centre in the University of Melbourne.
Up to a quarter of cases of DCIS recur, and half of those cases emerge in the form of invasive breast cancer. Currently, all recurrent tumor patients are provided the same treatment on the assumption that all recurrences arise from the primary lesion, Dr. Kader commented.
But the new findings could change this practice. If a patient with DCIS returns to the clinic with a tumor independent of the primary lesion, physicians should consider preventive therapies, such as mastectomy or genetic counseling, she said in an interview.
For their study, Dr. Kader and colleagues gathered patient samples and extracted 67 pairs of primary DCIS and their recurrences from the same breast. They also collected 32 samples from nonrecurrent cases of DCIS.
They then used advanced DNA sequencing methods to conduct detailed molecular analyses in order to determine whether the recurrences were genetically distinct from the original lesion.
The team found that 82% of cases appeared to be clonal – derived from the same ancestral cell as the original tumor – and 18% were nonclonal – arose independently of the original DCIS.
The researchers also identified specific genetic changes, including a mutation in the TP53 gene, that were present in recurrences of DCIS but not in nonrecurrent or nonclonal cases.
“It was surprising to see that nonclonal tumors have a similar genetic profile as nonrecurrent tumors,” Dr. Kader said. This means that, if these genetic changes are used as biomarkers to predict the recurrence of DCIS, they could lead to the undertreatment of patients who could develop nonclonal tumors, since these individuals may be categorized as having a low risk of recurrence, she explained.
“For the last 10 years, everyone has been trying their best to find a biomarker without actually taking into account that independent tumors can actually arise on the same breast independently,” Dr. Kader said.
The main limitation of this study was the lack of DNA from matched healthy cells to compare to the patient samples, said Dr. Kader. Because of the lack of these samples, the study focused only on chromosomal changes.
This study is “highly relevant, as it adds to our knowledge to what extent DCIS can be considered a precursor lesion as well as a risk lesion,” said Jelle Wesseling, MD, PhD, a breast pathologist at the Netherlands Cancer Institute. He was not involved in this research, but his team has also found that primary DCIS lesions and their subsequent events can be clonally unrelated.
Dr. Wesseling said there are still many questions, such as whether inherited genetic variants or the tumor microenvironment contribute to DCIS recurrences. “There is a lot more work to be done here to tease this out in more detail.”
The study was funded by grants from the National Breast Cancer Foundation, the Cancer Council Victoria, and the Victorian Cancer Agency.
A version of this article first appeared on Medscape.com.
according to a study presented at the annual meeting of the American Association for Cancer Research.
If these findings of de novo tumor recurrences hold true, “it should change how you should treat the patients in the clinic,” commented lead author Tanjina Kader, PhD, a postdoctoral researcher in the department of oncology at the Peter MacCallum Cancer Centre in the University of Melbourne.
Up to a quarter of cases of DCIS recur, and half of those cases emerge in the form of invasive breast cancer. Currently, all recurrent tumor patients are provided the same treatment on the assumption that all recurrences arise from the primary lesion, Dr. Kader commented.
But the new findings could change this practice. If a patient with DCIS returns to the clinic with a tumor independent of the primary lesion, physicians should consider preventive therapies, such as mastectomy or genetic counseling, she said in an interview.
For their study, Dr. Kader and colleagues gathered patient samples and extracted 67 pairs of primary DCIS and their recurrences from the same breast. They also collected 32 samples from nonrecurrent cases of DCIS.
They then used advanced DNA sequencing methods to conduct detailed molecular analyses in order to determine whether the recurrences were genetically distinct from the original lesion.
The team found that 82% of cases appeared to be clonal – derived from the same ancestral cell as the original tumor – and 18% were nonclonal – arose independently of the original DCIS.
The researchers also identified specific genetic changes, including a mutation in the TP53 gene, that were present in recurrences of DCIS but not in nonrecurrent or nonclonal cases.
“It was surprising to see that nonclonal tumors have a similar genetic profile as nonrecurrent tumors,” Dr. Kader said. This means that, if these genetic changes are used as biomarkers to predict the recurrence of DCIS, they could lead to the undertreatment of patients who could develop nonclonal tumors, since these individuals may be categorized as having a low risk of recurrence, she explained.
“For the last 10 years, everyone has been trying their best to find a biomarker without actually taking into account that independent tumors can actually arise on the same breast independently,” Dr. Kader said.
The main limitation of this study was the lack of DNA from matched healthy cells to compare to the patient samples, said Dr. Kader. Because of the lack of these samples, the study focused only on chromosomal changes.
This study is “highly relevant, as it adds to our knowledge to what extent DCIS can be considered a precursor lesion as well as a risk lesion,” said Jelle Wesseling, MD, PhD, a breast pathologist at the Netherlands Cancer Institute. He was not involved in this research, but his team has also found that primary DCIS lesions and their subsequent events can be clonally unrelated.
Dr. Wesseling said there are still many questions, such as whether inherited genetic variants or the tumor microenvironment contribute to DCIS recurrences. “There is a lot more work to be done here to tease this out in more detail.”
The study was funded by grants from the National Breast Cancer Foundation, the Cancer Council Victoria, and the Victorian Cancer Agency.
A version of this article first appeared on Medscape.com.
according to a study presented at the annual meeting of the American Association for Cancer Research.
If these findings of de novo tumor recurrences hold true, “it should change how you should treat the patients in the clinic,” commented lead author Tanjina Kader, PhD, a postdoctoral researcher in the department of oncology at the Peter MacCallum Cancer Centre in the University of Melbourne.
Up to a quarter of cases of DCIS recur, and half of those cases emerge in the form of invasive breast cancer. Currently, all recurrent tumor patients are provided the same treatment on the assumption that all recurrences arise from the primary lesion, Dr. Kader commented.
But the new findings could change this practice. If a patient with DCIS returns to the clinic with a tumor independent of the primary lesion, physicians should consider preventive therapies, such as mastectomy or genetic counseling, she said in an interview.
For their study, Dr. Kader and colleagues gathered patient samples and extracted 67 pairs of primary DCIS and their recurrences from the same breast. They also collected 32 samples from nonrecurrent cases of DCIS.
They then used advanced DNA sequencing methods to conduct detailed molecular analyses in order to determine whether the recurrences were genetically distinct from the original lesion.
The team found that 82% of cases appeared to be clonal – derived from the same ancestral cell as the original tumor – and 18% were nonclonal – arose independently of the original DCIS.
The researchers also identified specific genetic changes, including a mutation in the TP53 gene, that were present in recurrences of DCIS but not in nonrecurrent or nonclonal cases.
“It was surprising to see that nonclonal tumors have a similar genetic profile as nonrecurrent tumors,” Dr. Kader said. This means that, if these genetic changes are used as biomarkers to predict the recurrence of DCIS, they could lead to the undertreatment of patients who could develop nonclonal tumors, since these individuals may be categorized as having a low risk of recurrence, she explained.
“For the last 10 years, everyone has been trying their best to find a biomarker without actually taking into account that independent tumors can actually arise on the same breast independently,” Dr. Kader said.
The main limitation of this study was the lack of DNA from matched healthy cells to compare to the patient samples, said Dr. Kader. Because of the lack of these samples, the study focused only on chromosomal changes.
This study is “highly relevant, as it adds to our knowledge to what extent DCIS can be considered a precursor lesion as well as a risk lesion,” said Jelle Wesseling, MD, PhD, a breast pathologist at the Netherlands Cancer Institute. He was not involved in this research, but his team has also found that primary DCIS lesions and their subsequent events can be clonally unrelated.
Dr. Wesseling said there are still many questions, such as whether inherited genetic variants or the tumor microenvironment contribute to DCIS recurrences. “There is a lot more work to be done here to tease this out in more detail.”
The study was funded by grants from the National Breast Cancer Foundation, the Cancer Council Victoria, and the Victorian Cancer Agency.
A version of this article first appeared on Medscape.com.
FROM AACR 2022
‘Major advance’: Sotorasib benefit persists in KRAS+ NSCLC
NEW ORLEANS – with the first-in-class KRAS inhibitor sotorasib (Lumakras, Amgen).
The finding comes from an analysis of long-term follow-up data from the CodeBreaK100 trial, which showed a 2-year overall survival (OS) rate of 32.5% in pretreated patients with KRASG12C-mutant disease.
That rate compares favorably with historical data on NSCLC therapies, said Grace K. Dy, MD, from Roswell Park Comprehensive Cancer Center in Buffalo, N.Y.
“We expect about half of that [survival rate] in patients who are treated with docetaxel,” she said in a plenary session at the annual meeting of the American Association for Cancer Research.
Sotorasib was approved by the Food and Drug Administration in May 2021 as the first drug for patients with NSCLC and KRAS mutations and was described as a “historic milestone.”
In this most recent analysis, which combined data from patients enrolled in phases 1 and 2 of the trial, the “objective response rate of 41% of patients was achieved with sotorasib, with a durable [disease] control rate of 84% and a median duration of response of 12.3 months, with no new safety signals emerging,” she said.
Nearly one-fourth of patients saw long-term benefit, as defined by progression-free survival of at least 12 months, and this long-term benefit was seen across variant allele frequencies of KRASG12C, programmed death–ligand 1 (PD-L1) tumor proportion score, and other comutations, she noted.
“KRASG12C inhibitors represent a major advance in the treatment of KRAS-mutant lung cancers and other types as well,” said invited discussant Mark M. Awad, MD, PhD, director of clinical research at the Lowe Center for Thoracic Oncology at Dana-Farber Cancer Center, Boston.
He cautioned, however, that “the therapeutic efficacy of these G12C inhibitors is currently limited by several things, including patient factors, intrinsic biology, and the emergence of complex resistance mechanisms.”
New approaches will be needed, he said, “to delay and overcome drug resistance to hopefully keep kicking cancer’s KRAS.”
At a media briefing where Dr. Dy presented the data prior to the oral abstract session, moderator Timothy A. Yap, MBBS, PhD, from the University of Texas MD Anderson Cancer Center, Houston, commented that the development of drug resistance is common in oncology.
“That is exactly why we’re now actively working on multiple different combinatorial approaches in the clinic. There have been pretty compelling data published from Mirati [Therapeutics] and from other companies, from Amgen, that really show the resistance mechanisms that actually come about upon monotherapy with KRASG12C inhibitors, including CDK4/6, including P13K-Akt pathways,” he said.
“The solution there really is, No. 1, we need to identify proactively the resistance mechanisms involved and driving each cancer’s resistance, and No. 2, then apply the combinatorial agent, to bring in a combination that’s a rational approach to match a patient’s molecular profile upon resistance,” he said.
Tarnished triumph
As previously reported, sotorasib was hailed as “a triumph of drug discovery” when early results of the trial were reported at the European Society of Medical Oncology annual meeting in 2020.
Sotorasib is a small-molecule, specific, and irreversible inhibitor of KRAS that interacts with a “pocket” on the gene’s surface that is present only in an inactive conformation of KRAS. The drug inhibits oncogenic signaling and tumorigenesis by preventing cycling of the oncogene into its active form.
But as Dr. Awad reported at the 2021 AACR annual meeting, the efficacy of sotorasib and other KRAS inhibitors in development has been threatened by the development of resistance caused by a wide range of genomic and histologic mechanisms.
Dr. Awad reported that among 30 patients with NSCLC or colorectal cancer bearing the KRASG12C mutation who had disease progression while being treated with the investigational inhibitor adagrasib in clinical trials, investigators found multiple on-target KRAS alterations and off-target bypass mechanisms of acquired resistance to the drug.
“Diverse mechanisms confer resistance to the KRASG12C inhibitors, including secondary KRAS mutations, MAP [mitogen-activated protein] kinase pathway alterations, acquired genomic rearrangements, and histologic transformation,” he said.
Long follow-up
The long-term data reported at the 2022 meeting by Dr. Dy and colleagues included data on 48 patients enrolled in phase 1 of the trial, which had a primary endpoint of safety and tolerability, and 126 patients enrolled in phase 2, with a primary endpoint of objective response rate by blinded independent review.
The trial was conducted in centers in the United States, Europe, Australia, Japan, and South Korea.
Nearly all patients were pretreated: 92.5% of patients had received prior platinum-based chemotherapy and 90.2% had received anti–PD-1/PD-L1 immunotherapy.
Patients received oral sotorasib 960 mg once daily and were followed with radiographic scans every 6 weeks for the first year and once every 12 weeks thereafter.
Of the 174 patients enrolled, two were not evaluable for response at 2 years because of a lack of measurable lesions at baseline.
At a median follow-up of 24.9 months, 5 patients (2.9%) had a complete response and 65 (37.8%) had a partial response, for an objective response rate of 40.7%. An additional 74 patients (43%) had stable disease, for a disease control rate of 83.7%. Of the remaining patients, 23 (13.4%) had disease progression, and 5 were either not evaluable or had missing scan data.
Median progression-free survival was 6.3 months. Median time to response was 6 weeks, and median duration of response was 12.3 months. Half of patients who had a response retained that response for at least 12 months.
Median OS was 12.5 months. The 1-year and 2-year OS rates were 50.8% and 32.5%, respectively.
Grade 3 or 4 treatment-related adverse events occurred in 21% of patients, and one patient had new-onset grade 3 hemolytic anemia 1 year after starting therapy. There were no treatment-related deaths and no treatment-related adverse events leading to discontinuation after the first year.
In exploratory analyses, the benefit of the drug was seen across tumors with varying levels of PD-L1 expression and the oncogenic STK11 comutation, and across KRASG12C variant allele frequency.
The investigators also reported that baseline circulating tumor DNA levels correlated with tumor burden, and that patients who had long-term benefits had lower baseline ctDNA. This finding is consistent with the documented role of ctDNA as a marker for poor prognosis regardless of therapy.
Dr. Dy reported receiving consulting fees from AstraZeneca, Eli Lilly, Mirati Therapeutics, and Takeda in the past 2 years. Dr. Yap disclosed receiving consulting fees from multiple companies. Dr. Awad disclosed consulting for multiple companies.
A version of this article first appeared on Medscape.com.
NEW ORLEANS – with the first-in-class KRAS inhibitor sotorasib (Lumakras, Amgen).
The finding comes from an analysis of long-term follow-up data from the CodeBreaK100 trial, which showed a 2-year overall survival (OS) rate of 32.5% in pretreated patients with KRASG12C-mutant disease.
That rate compares favorably with historical data on NSCLC therapies, said Grace K. Dy, MD, from Roswell Park Comprehensive Cancer Center in Buffalo, N.Y.
“We expect about half of that [survival rate] in patients who are treated with docetaxel,” she said in a plenary session at the annual meeting of the American Association for Cancer Research.
Sotorasib was approved by the Food and Drug Administration in May 2021 as the first drug for patients with NSCLC and KRAS mutations and was described as a “historic milestone.”
In this most recent analysis, which combined data from patients enrolled in phases 1 and 2 of the trial, the “objective response rate of 41% of patients was achieved with sotorasib, with a durable [disease] control rate of 84% and a median duration of response of 12.3 months, with no new safety signals emerging,” she said.
Nearly one-fourth of patients saw long-term benefit, as defined by progression-free survival of at least 12 months, and this long-term benefit was seen across variant allele frequencies of KRASG12C, programmed death–ligand 1 (PD-L1) tumor proportion score, and other comutations, she noted.
“KRASG12C inhibitors represent a major advance in the treatment of KRAS-mutant lung cancers and other types as well,” said invited discussant Mark M. Awad, MD, PhD, director of clinical research at the Lowe Center for Thoracic Oncology at Dana-Farber Cancer Center, Boston.
He cautioned, however, that “the therapeutic efficacy of these G12C inhibitors is currently limited by several things, including patient factors, intrinsic biology, and the emergence of complex resistance mechanisms.”
New approaches will be needed, he said, “to delay and overcome drug resistance to hopefully keep kicking cancer’s KRAS.”
At a media briefing where Dr. Dy presented the data prior to the oral abstract session, moderator Timothy A. Yap, MBBS, PhD, from the University of Texas MD Anderson Cancer Center, Houston, commented that the development of drug resistance is common in oncology.
“That is exactly why we’re now actively working on multiple different combinatorial approaches in the clinic. There have been pretty compelling data published from Mirati [Therapeutics] and from other companies, from Amgen, that really show the resistance mechanisms that actually come about upon monotherapy with KRASG12C inhibitors, including CDK4/6, including P13K-Akt pathways,” he said.
“The solution there really is, No. 1, we need to identify proactively the resistance mechanisms involved and driving each cancer’s resistance, and No. 2, then apply the combinatorial agent, to bring in a combination that’s a rational approach to match a patient’s molecular profile upon resistance,” he said.
Tarnished triumph
As previously reported, sotorasib was hailed as “a triumph of drug discovery” when early results of the trial were reported at the European Society of Medical Oncology annual meeting in 2020.
Sotorasib is a small-molecule, specific, and irreversible inhibitor of KRAS that interacts with a “pocket” on the gene’s surface that is present only in an inactive conformation of KRAS. The drug inhibits oncogenic signaling and tumorigenesis by preventing cycling of the oncogene into its active form.
But as Dr. Awad reported at the 2021 AACR annual meeting, the efficacy of sotorasib and other KRAS inhibitors in development has been threatened by the development of resistance caused by a wide range of genomic and histologic mechanisms.
Dr. Awad reported that among 30 patients with NSCLC or colorectal cancer bearing the KRASG12C mutation who had disease progression while being treated with the investigational inhibitor adagrasib in clinical trials, investigators found multiple on-target KRAS alterations and off-target bypass mechanisms of acquired resistance to the drug.
“Diverse mechanisms confer resistance to the KRASG12C inhibitors, including secondary KRAS mutations, MAP [mitogen-activated protein] kinase pathway alterations, acquired genomic rearrangements, and histologic transformation,” he said.
Long follow-up
The long-term data reported at the 2022 meeting by Dr. Dy and colleagues included data on 48 patients enrolled in phase 1 of the trial, which had a primary endpoint of safety and tolerability, and 126 patients enrolled in phase 2, with a primary endpoint of objective response rate by blinded independent review.
The trial was conducted in centers in the United States, Europe, Australia, Japan, and South Korea.
Nearly all patients were pretreated: 92.5% of patients had received prior platinum-based chemotherapy and 90.2% had received anti–PD-1/PD-L1 immunotherapy.
Patients received oral sotorasib 960 mg once daily and were followed with radiographic scans every 6 weeks for the first year and once every 12 weeks thereafter.
Of the 174 patients enrolled, two were not evaluable for response at 2 years because of a lack of measurable lesions at baseline.
At a median follow-up of 24.9 months, 5 patients (2.9%) had a complete response and 65 (37.8%) had a partial response, for an objective response rate of 40.7%. An additional 74 patients (43%) had stable disease, for a disease control rate of 83.7%. Of the remaining patients, 23 (13.4%) had disease progression, and 5 were either not evaluable or had missing scan data.
Median progression-free survival was 6.3 months. Median time to response was 6 weeks, and median duration of response was 12.3 months. Half of patients who had a response retained that response for at least 12 months.
Median OS was 12.5 months. The 1-year and 2-year OS rates were 50.8% and 32.5%, respectively.
Grade 3 or 4 treatment-related adverse events occurred in 21% of patients, and one patient had new-onset grade 3 hemolytic anemia 1 year after starting therapy. There were no treatment-related deaths and no treatment-related adverse events leading to discontinuation after the first year.
In exploratory analyses, the benefit of the drug was seen across tumors with varying levels of PD-L1 expression and the oncogenic STK11 comutation, and across KRASG12C variant allele frequency.
The investigators also reported that baseline circulating tumor DNA levels correlated with tumor burden, and that patients who had long-term benefits had lower baseline ctDNA. This finding is consistent with the documented role of ctDNA as a marker for poor prognosis regardless of therapy.
Dr. Dy reported receiving consulting fees from AstraZeneca, Eli Lilly, Mirati Therapeutics, and Takeda in the past 2 years. Dr. Yap disclosed receiving consulting fees from multiple companies. Dr. Awad disclosed consulting for multiple companies.
A version of this article first appeared on Medscape.com.
NEW ORLEANS – with the first-in-class KRAS inhibitor sotorasib (Lumakras, Amgen).
The finding comes from an analysis of long-term follow-up data from the CodeBreaK100 trial, which showed a 2-year overall survival (OS) rate of 32.5% in pretreated patients with KRASG12C-mutant disease.
That rate compares favorably with historical data on NSCLC therapies, said Grace K. Dy, MD, from Roswell Park Comprehensive Cancer Center in Buffalo, N.Y.
“We expect about half of that [survival rate] in patients who are treated with docetaxel,” she said in a plenary session at the annual meeting of the American Association for Cancer Research.
Sotorasib was approved by the Food and Drug Administration in May 2021 as the first drug for patients with NSCLC and KRAS mutations and was described as a “historic milestone.”
In this most recent analysis, which combined data from patients enrolled in phases 1 and 2 of the trial, the “objective response rate of 41% of patients was achieved with sotorasib, with a durable [disease] control rate of 84% and a median duration of response of 12.3 months, with no new safety signals emerging,” she said.
Nearly one-fourth of patients saw long-term benefit, as defined by progression-free survival of at least 12 months, and this long-term benefit was seen across variant allele frequencies of KRASG12C, programmed death–ligand 1 (PD-L1) tumor proportion score, and other comutations, she noted.
“KRASG12C inhibitors represent a major advance in the treatment of KRAS-mutant lung cancers and other types as well,” said invited discussant Mark M. Awad, MD, PhD, director of clinical research at the Lowe Center for Thoracic Oncology at Dana-Farber Cancer Center, Boston.
He cautioned, however, that “the therapeutic efficacy of these G12C inhibitors is currently limited by several things, including patient factors, intrinsic biology, and the emergence of complex resistance mechanisms.”
New approaches will be needed, he said, “to delay and overcome drug resistance to hopefully keep kicking cancer’s KRAS.”
At a media briefing where Dr. Dy presented the data prior to the oral abstract session, moderator Timothy A. Yap, MBBS, PhD, from the University of Texas MD Anderson Cancer Center, Houston, commented that the development of drug resistance is common in oncology.
“That is exactly why we’re now actively working on multiple different combinatorial approaches in the clinic. There have been pretty compelling data published from Mirati [Therapeutics] and from other companies, from Amgen, that really show the resistance mechanisms that actually come about upon monotherapy with KRASG12C inhibitors, including CDK4/6, including P13K-Akt pathways,” he said.
“The solution there really is, No. 1, we need to identify proactively the resistance mechanisms involved and driving each cancer’s resistance, and No. 2, then apply the combinatorial agent, to bring in a combination that’s a rational approach to match a patient’s molecular profile upon resistance,” he said.
Tarnished triumph
As previously reported, sotorasib was hailed as “a triumph of drug discovery” when early results of the trial were reported at the European Society of Medical Oncology annual meeting in 2020.
Sotorasib is a small-molecule, specific, and irreversible inhibitor of KRAS that interacts with a “pocket” on the gene’s surface that is present only in an inactive conformation of KRAS. The drug inhibits oncogenic signaling and tumorigenesis by preventing cycling of the oncogene into its active form.
But as Dr. Awad reported at the 2021 AACR annual meeting, the efficacy of sotorasib and other KRAS inhibitors in development has been threatened by the development of resistance caused by a wide range of genomic and histologic mechanisms.
Dr. Awad reported that among 30 patients with NSCLC or colorectal cancer bearing the KRASG12C mutation who had disease progression while being treated with the investigational inhibitor adagrasib in clinical trials, investigators found multiple on-target KRAS alterations and off-target bypass mechanisms of acquired resistance to the drug.
“Diverse mechanisms confer resistance to the KRASG12C inhibitors, including secondary KRAS mutations, MAP [mitogen-activated protein] kinase pathway alterations, acquired genomic rearrangements, and histologic transformation,” he said.
Long follow-up
The long-term data reported at the 2022 meeting by Dr. Dy and colleagues included data on 48 patients enrolled in phase 1 of the trial, which had a primary endpoint of safety and tolerability, and 126 patients enrolled in phase 2, with a primary endpoint of objective response rate by blinded independent review.
The trial was conducted in centers in the United States, Europe, Australia, Japan, and South Korea.
Nearly all patients were pretreated: 92.5% of patients had received prior platinum-based chemotherapy and 90.2% had received anti–PD-1/PD-L1 immunotherapy.
Patients received oral sotorasib 960 mg once daily and were followed with radiographic scans every 6 weeks for the first year and once every 12 weeks thereafter.
Of the 174 patients enrolled, two were not evaluable for response at 2 years because of a lack of measurable lesions at baseline.
At a median follow-up of 24.9 months, 5 patients (2.9%) had a complete response and 65 (37.8%) had a partial response, for an objective response rate of 40.7%. An additional 74 patients (43%) had stable disease, for a disease control rate of 83.7%. Of the remaining patients, 23 (13.4%) had disease progression, and 5 were either not evaluable or had missing scan data.
Median progression-free survival was 6.3 months. Median time to response was 6 weeks, and median duration of response was 12.3 months. Half of patients who had a response retained that response for at least 12 months.
Median OS was 12.5 months. The 1-year and 2-year OS rates were 50.8% and 32.5%, respectively.
Grade 3 or 4 treatment-related adverse events occurred in 21% of patients, and one patient had new-onset grade 3 hemolytic anemia 1 year after starting therapy. There were no treatment-related deaths and no treatment-related adverse events leading to discontinuation after the first year.
In exploratory analyses, the benefit of the drug was seen across tumors with varying levels of PD-L1 expression and the oncogenic STK11 comutation, and across KRASG12C variant allele frequency.
The investigators also reported that baseline circulating tumor DNA levels correlated with tumor burden, and that patients who had long-term benefits had lower baseline ctDNA. This finding is consistent with the documented role of ctDNA as a marker for poor prognosis regardless of therapy.
Dr. Dy reported receiving consulting fees from AstraZeneca, Eli Lilly, Mirati Therapeutics, and Takeda in the past 2 years. Dr. Yap disclosed receiving consulting fees from multiple companies. Dr. Awad disclosed consulting for multiple companies.
A version of this article first appeared on Medscape.com.
AT AACR 2022
Cancer diet studies: Veggies get another rave, while red meat’s busted again
Researchers report that high consumption of vegetables – especially lettuce, legumes, and cruciferous varieties – appears to lower the risk of liver cancer/liver disease. A separate team suggests that high consumption of red meat, organ meats, and processed meats boosts the risk of gastric cancer.
The findings of the latter study “reinforce the idea that avoidance of red meat and processed meat is probably good beyond [the prevention of] colorectal cancer,” said corresponding author and epidemiologist Paolo Boffetta, MD, MPH, of Stony Brook University Cancer Center, New York, in an interview. “The possible carcinogenic effect may extend beyond the colon.”
Both studies were released at the annual meeting of the American Association for Cancer Research.
For the red meat study, researchers examined statistics from the Golestan cohort study, which is prospectively tracking 50,045 people aged 40-75 from northeastern Iran. The study focuses on esophageal cancer due to the region’s high rate of the disease.
Red meat consumption is fairly rare in the region, where residents typically prefer chicken, said study lead author Giulia Collatuzzo, MD, a resident physician in occupational medicine at the University of Bologna, Italy, in an interview. On average, participants reported eating 18.4 grams daily of red meat and 72.1 grams daily of white meat.
The researchers tracked study participants for a median 12-year follow-up, during which 369 developed esophageal cancer and 368 developed gastric cancer. Red meat was only linked to more esophageal cancer in women (hazard ratio, 1.13, 95% confidence interval, 1.00-1.18, for each quintile increase in consumption).
Overall red meat consumption (including red meat, organ meat, and processed meat) was linked to higher rates of gastric cancer (HR, 1.08, 95% CI, 1.00-1.17) for each quartile increase in consumption, as was consumption of the red meat subtype alone (HR, 1.09, 95% CI, 1.00-1.18).
According to Dr. Collatuzzo, the findings suggest that those in the highest quartile of overall red meat consumption may have around a 25% increase in risk, compared with the lowest quartile.
Overall, she said, the study findings aren’t surprising. The lack of a connection between red meat consumption and esophageal cancer may be due to the fact that meat only temporarily transits through the esophagus, she said.
For the liver cancer/liver disease study, researchers examined the medical records of 470,653 subjects in the NIH-AARP Diet and Health Study. They were recruited in 1995-1996 when they were 50-71 years old. Over a median follow-up of 15.5 years, 899 developed liver cancer, and 934 died of chronic liver disease.
The median intakes of vegetables in quintile 5 (highest) and quintile 1 (lowest) were 3.7 cups daily and 1.0 cups daily, respectively, said study lead author Long-Gang Zhao, MS, a graduate student at Harvard University.
After adjusting for possible cofounders, those in the highest quintile of vegetable consumption were a third less likely to develop liver cancer, compared with the lowest quintile (HR, 0.66, 95% CI, 0.53-0.82, P < 0.01). Several types of vegetables appeared to be the strongest cancer fighters: cruciferous (broccoli, cauliflower), lettuce, legumes, and carrots. These kinds of vegetables were also linked to lower rates of chronic liver disease mortality (all P < 0.01), as was total vegetable intake for the top quintile versus the lowest quintile (HR, 0.60, 95% CI, 0.49-0.74, P = < 0.01).
“A one-cup increase (8 oz or 225 g) in vegetable intake was associated with about 20% decreased risk of liver cancer incidence and chronic liver mortality,” Zhao said.
There was no statistically significant link between fruit consumption and liver cancer or chronic liver disease mortality.
The findings provide more insight into diet and liver disease, Zhao said. “Chronic liver disease, which predisposes to liver cancer, is the tenth cause of death worldwide, causing two million deaths each year. It shares some etiological processes with liver cancer. Therefore, examining both chronic liver disease mortality and liver cancer incidence in our study may provide a more general picture for the prevention of liver diseases.”
As for limitations, both studies are based on self-reports about food consumption, which can be unreliable, and the subjects in the fruit/vegetable analysis were mainly of European origin.
The authors of both studies report no relevant disclosures. No funding is reported for either study.
Researchers report that high consumption of vegetables – especially lettuce, legumes, and cruciferous varieties – appears to lower the risk of liver cancer/liver disease. A separate team suggests that high consumption of red meat, organ meats, and processed meats boosts the risk of gastric cancer.
The findings of the latter study “reinforce the idea that avoidance of red meat and processed meat is probably good beyond [the prevention of] colorectal cancer,” said corresponding author and epidemiologist Paolo Boffetta, MD, MPH, of Stony Brook University Cancer Center, New York, in an interview. “The possible carcinogenic effect may extend beyond the colon.”
Both studies were released at the annual meeting of the American Association for Cancer Research.
For the red meat study, researchers examined statistics from the Golestan cohort study, which is prospectively tracking 50,045 people aged 40-75 from northeastern Iran. The study focuses on esophageal cancer due to the region’s high rate of the disease.
Red meat consumption is fairly rare in the region, where residents typically prefer chicken, said study lead author Giulia Collatuzzo, MD, a resident physician in occupational medicine at the University of Bologna, Italy, in an interview. On average, participants reported eating 18.4 grams daily of red meat and 72.1 grams daily of white meat.
The researchers tracked study participants for a median 12-year follow-up, during which 369 developed esophageal cancer and 368 developed gastric cancer. Red meat was only linked to more esophageal cancer in women (hazard ratio, 1.13, 95% confidence interval, 1.00-1.18, for each quintile increase in consumption).
Overall red meat consumption (including red meat, organ meat, and processed meat) was linked to higher rates of gastric cancer (HR, 1.08, 95% CI, 1.00-1.17) for each quartile increase in consumption, as was consumption of the red meat subtype alone (HR, 1.09, 95% CI, 1.00-1.18).
According to Dr. Collatuzzo, the findings suggest that those in the highest quartile of overall red meat consumption may have around a 25% increase in risk, compared with the lowest quartile.
Overall, she said, the study findings aren’t surprising. The lack of a connection between red meat consumption and esophageal cancer may be due to the fact that meat only temporarily transits through the esophagus, she said.
For the liver cancer/liver disease study, researchers examined the medical records of 470,653 subjects in the NIH-AARP Diet and Health Study. They were recruited in 1995-1996 when they were 50-71 years old. Over a median follow-up of 15.5 years, 899 developed liver cancer, and 934 died of chronic liver disease.
The median intakes of vegetables in quintile 5 (highest) and quintile 1 (lowest) were 3.7 cups daily and 1.0 cups daily, respectively, said study lead author Long-Gang Zhao, MS, a graduate student at Harvard University.
After adjusting for possible cofounders, those in the highest quintile of vegetable consumption were a third less likely to develop liver cancer, compared with the lowest quintile (HR, 0.66, 95% CI, 0.53-0.82, P < 0.01). Several types of vegetables appeared to be the strongest cancer fighters: cruciferous (broccoli, cauliflower), lettuce, legumes, and carrots. These kinds of vegetables were also linked to lower rates of chronic liver disease mortality (all P < 0.01), as was total vegetable intake for the top quintile versus the lowest quintile (HR, 0.60, 95% CI, 0.49-0.74, P = < 0.01).
“A one-cup increase (8 oz or 225 g) in vegetable intake was associated with about 20% decreased risk of liver cancer incidence and chronic liver mortality,” Zhao said.
There was no statistically significant link between fruit consumption and liver cancer or chronic liver disease mortality.
The findings provide more insight into diet and liver disease, Zhao said. “Chronic liver disease, which predisposes to liver cancer, is the tenth cause of death worldwide, causing two million deaths each year. It shares some etiological processes with liver cancer. Therefore, examining both chronic liver disease mortality and liver cancer incidence in our study may provide a more general picture for the prevention of liver diseases.”
As for limitations, both studies are based on self-reports about food consumption, which can be unreliable, and the subjects in the fruit/vegetable analysis were mainly of European origin.
The authors of both studies report no relevant disclosures. No funding is reported for either study.
Researchers report that high consumption of vegetables – especially lettuce, legumes, and cruciferous varieties – appears to lower the risk of liver cancer/liver disease. A separate team suggests that high consumption of red meat, organ meats, and processed meats boosts the risk of gastric cancer.
The findings of the latter study “reinforce the idea that avoidance of red meat and processed meat is probably good beyond [the prevention of] colorectal cancer,” said corresponding author and epidemiologist Paolo Boffetta, MD, MPH, of Stony Brook University Cancer Center, New York, in an interview. “The possible carcinogenic effect may extend beyond the colon.”
Both studies were released at the annual meeting of the American Association for Cancer Research.
For the red meat study, researchers examined statistics from the Golestan cohort study, which is prospectively tracking 50,045 people aged 40-75 from northeastern Iran. The study focuses on esophageal cancer due to the region’s high rate of the disease.
Red meat consumption is fairly rare in the region, where residents typically prefer chicken, said study lead author Giulia Collatuzzo, MD, a resident physician in occupational medicine at the University of Bologna, Italy, in an interview. On average, participants reported eating 18.4 grams daily of red meat and 72.1 grams daily of white meat.
The researchers tracked study participants for a median 12-year follow-up, during which 369 developed esophageal cancer and 368 developed gastric cancer. Red meat was only linked to more esophageal cancer in women (hazard ratio, 1.13, 95% confidence interval, 1.00-1.18, for each quintile increase in consumption).
Overall red meat consumption (including red meat, organ meat, and processed meat) was linked to higher rates of gastric cancer (HR, 1.08, 95% CI, 1.00-1.17) for each quartile increase in consumption, as was consumption of the red meat subtype alone (HR, 1.09, 95% CI, 1.00-1.18).
According to Dr. Collatuzzo, the findings suggest that those in the highest quartile of overall red meat consumption may have around a 25% increase in risk, compared with the lowest quartile.
Overall, she said, the study findings aren’t surprising. The lack of a connection between red meat consumption and esophageal cancer may be due to the fact that meat only temporarily transits through the esophagus, she said.
For the liver cancer/liver disease study, researchers examined the medical records of 470,653 subjects in the NIH-AARP Diet and Health Study. They were recruited in 1995-1996 when they were 50-71 years old. Over a median follow-up of 15.5 years, 899 developed liver cancer, and 934 died of chronic liver disease.
The median intakes of vegetables in quintile 5 (highest) and quintile 1 (lowest) were 3.7 cups daily and 1.0 cups daily, respectively, said study lead author Long-Gang Zhao, MS, a graduate student at Harvard University.
After adjusting for possible cofounders, those in the highest quintile of vegetable consumption were a third less likely to develop liver cancer, compared with the lowest quintile (HR, 0.66, 95% CI, 0.53-0.82, P < 0.01). Several types of vegetables appeared to be the strongest cancer fighters: cruciferous (broccoli, cauliflower), lettuce, legumes, and carrots. These kinds of vegetables were also linked to lower rates of chronic liver disease mortality (all P < 0.01), as was total vegetable intake for the top quintile versus the lowest quintile (HR, 0.60, 95% CI, 0.49-0.74, P = < 0.01).
“A one-cup increase (8 oz or 225 g) in vegetable intake was associated with about 20% decreased risk of liver cancer incidence and chronic liver mortality,” Zhao said.
There was no statistically significant link between fruit consumption and liver cancer or chronic liver disease mortality.
The findings provide more insight into diet and liver disease, Zhao said. “Chronic liver disease, which predisposes to liver cancer, is the tenth cause of death worldwide, causing two million deaths each year. It shares some etiological processes with liver cancer. Therefore, examining both chronic liver disease mortality and liver cancer incidence in our study may provide a more general picture for the prevention of liver diseases.”
As for limitations, both studies are based on self-reports about food consumption, which can be unreliable, and the subjects in the fruit/vegetable analysis were mainly of European origin.
The authors of both studies report no relevant disclosures. No funding is reported for either study.
FROM AACR 2022
Novel COVID-19 vaccine could fill the void for patients with blood cancers
according to study results presented at the annual meeting of the American Association for Cancer Research.
The phase 1/2 trial included 54 patients with a B-cell deficiency (mean age, 63 years; 28% female): 4 had congenital B-cell deficiency and 50 had a blood cancer (lymphocytic leukemia or lymphoma). T-cell immune responses were observed in 86% of patients 28 days after vaccination with a single CoVac-1 dose. The potency of CoVac-1–induced T-cell responses exceeded those seen typically with B cell–deficient patient responses after mRNA vaccine treatment and were comparable with those seen among nonimmunocompromised COVID-19 patients.
In the majority of individuals, currently approved SARS-CoV-2 vaccines induce a robust immune response, however, their efficacy, has been shown to be decreased among individuals who are immunocompromised. Patients treated for hematologic cancers, in particular, receive treatment regimens that damage healthy immune cells, particularly B cells, said Juliane Walz, MD, the study’s senior author and professor of medicine at University Hospital Tübingen (Germany).
“In the clinic, we see many cancer patients who do not mount sufficient humoral immune responses after vaccination with available SARS-CoV-2 vaccines,” Dr. Walz said. “These patients are at a high risk for a severe course of COVID-19.”
B-cell deficiency, she stated, can be compensated for by enhancing T-cell responses against SARS-CoV-2, which can then combat infections in the absence of neutralizing antibodies.
In a prior study of CoVac-1 among 36 adults without immune deficiency, the vaccine elicited T-cell responses that were still robust 3 months post vaccination, and that included responses against omicron and other key SARS-CoV-2 variants.
While mRNA-based or adenoviral vector-based vaccines are limited to the spike protein and are thus prone to loss of activity because of viral mutations, CoVac-1–induced T-cell immunity is far more intense and broader, Dr. Walz said.
CoVac-1 is a peptide vaccine that is injected directly rather than being encoded via mRNA and targets different viral components. It would not be given, however, to healthy, immunocompetent adults because it is important for them to have both B-cell antibody and T-cell response.
The patients with B-cell deficiency recruited for the study were given a single dose of CoVac-1 and assessed for safety and immunogenicity until day 56. Prior vaccinations with an approved SARS-CoV-2 vaccine had failed to elicit a humoral response in 87% of the subjects.
“Our vaccine does not induce antibody responses,” Dr. Walz said. “However, it could be used to induce broad T-cell responses as a complementary or additive vaccine for elderly adults. In the elderly, antibody responses decline very, very fast after vaccination.”
Dr. Walz said that CoVac-1 could find application in various syndromes associated with congenital B-cell deficiencies, in autoimmune diseases such as rheumatoid arthritis and multiple sclerosis, or diseases treated with rituximab or other B cell–depleting therapies (for example, ofatumumab, blinatumomab, or chimeric antigen receptor T cells), and in transplant patients.
A phase 3 study of CoVac-1 versus placebo is under discussion and would require about 300-500 subjects, Dr. Walz said.
“CoVac-1 is designed to induce broad and long-lasting SARS-CoV-2 T-cell immunity, even in individuals who have impaired ability to mount sufficient immunity from a currently approved vaccine, and thus protect these high-risk patients from a severe course of COVID-19,” Dr. Walz said.
“Having an option for these patients is just critical – so this is significant work,” said Ana Maria Lopez, MD, MPH, of the Sidney Kimmel Cancer Center–Jefferson Health, Philadelphia.
Limitations of this study included the small sample size with low racial and ethnic diversity, Dr. Walz stated.
Funding was provided by the Ministry of Science, Research and the Arts of the state of Baden-Württemberg; the Federal Ministry of Research and Education in Germany; the German Research Foundation under Germany’s Excellence Strategy; and the Clinical Cooperation Unit Translational Immunology at University Hospital Tübingen. Dr. Walz holds the CoVac-1 patent.
according to study results presented at the annual meeting of the American Association for Cancer Research.
The phase 1/2 trial included 54 patients with a B-cell deficiency (mean age, 63 years; 28% female): 4 had congenital B-cell deficiency and 50 had a blood cancer (lymphocytic leukemia or lymphoma). T-cell immune responses were observed in 86% of patients 28 days after vaccination with a single CoVac-1 dose. The potency of CoVac-1–induced T-cell responses exceeded those seen typically with B cell–deficient patient responses after mRNA vaccine treatment and were comparable with those seen among nonimmunocompromised COVID-19 patients.
In the majority of individuals, currently approved SARS-CoV-2 vaccines induce a robust immune response, however, their efficacy, has been shown to be decreased among individuals who are immunocompromised. Patients treated for hematologic cancers, in particular, receive treatment regimens that damage healthy immune cells, particularly B cells, said Juliane Walz, MD, the study’s senior author and professor of medicine at University Hospital Tübingen (Germany).
“In the clinic, we see many cancer patients who do not mount sufficient humoral immune responses after vaccination with available SARS-CoV-2 vaccines,” Dr. Walz said. “These patients are at a high risk for a severe course of COVID-19.”
B-cell deficiency, she stated, can be compensated for by enhancing T-cell responses against SARS-CoV-2, which can then combat infections in the absence of neutralizing antibodies.
In a prior study of CoVac-1 among 36 adults without immune deficiency, the vaccine elicited T-cell responses that were still robust 3 months post vaccination, and that included responses against omicron and other key SARS-CoV-2 variants.
While mRNA-based or adenoviral vector-based vaccines are limited to the spike protein and are thus prone to loss of activity because of viral mutations, CoVac-1–induced T-cell immunity is far more intense and broader, Dr. Walz said.
CoVac-1 is a peptide vaccine that is injected directly rather than being encoded via mRNA and targets different viral components. It would not be given, however, to healthy, immunocompetent adults because it is important for them to have both B-cell antibody and T-cell response.
The patients with B-cell deficiency recruited for the study were given a single dose of CoVac-1 and assessed for safety and immunogenicity until day 56. Prior vaccinations with an approved SARS-CoV-2 vaccine had failed to elicit a humoral response in 87% of the subjects.
“Our vaccine does not induce antibody responses,” Dr. Walz said. “However, it could be used to induce broad T-cell responses as a complementary or additive vaccine for elderly adults. In the elderly, antibody responses decline very, very fast after vaccination.”
Dr. Walz said that CoVac-1 could find application in various syndromes associated with congenital B-cell deficiencies, in autoimmune diseases such as rheumatoid arthritis and multiple sclerosis, or diseases treated with rituximab or other B cell–depleting therapies (for example, ofatumumab, blinatumomab, or chimeric antigen receptor T cells), and in transplant patients.
A phase 3 study of CoVac-1 versus placebo is under discussion and would require about 300-500 subjects, Dr. Walz said.
“CoVac-1 is designed to induce broad and long-lasting SARS-CoV-2 T-cell immunity, even in individuals who have impaired ability to mount sufficient immunity from a currently approved vaccine, and thus protect these high-risk patients from a severe course of COVID-19,” Dr. Walz said.
“Having an option for these patients is just critical – so this is significant work,” said Ana Maria Lopez, MD, MPH, of the Sidney Kimmel Cancer Center–Jefferson Health, Philadelphia.
Limitations of this study included the small sample size with low racial and ethnic diversity, Dr. Walz stated.
Funding was provided by the Ministry of Science, Research and the Arts of the state of Baden-Württemberg; the Federal Ministry of Research and Education in Germany; the German Research Foundation under Germany’s Excellence Strategy; and the Clinical Cooperation Unit Translational Immunology at University Hospital Tübingen. Dr. Walz holds the CoVac-1 patent.
according to study results presented at the annual meeting of the American Association for Cancer Research.
The phase 1/2 trial included 54 patients with a B-cell deficiency (mean age, 63 years; 28% female): 4 had congenital B-cell deficiency and 50 had a blood cancer (lymphocytic leukemia or lymphoma). T-cell immune responses were observed in 86% of patients 28 days after vaccination with a single CoVac-1 dose. The potency of CoVac-1–induced T-cell responses exceeded those seen typically with B cell–deficient patient responses after mRNA vaccine treatment and were comparable with those seen among nonimmunocompromised COVID-19 patients.
In the majority of individuals, currently approved SARS-CoV-2 vaccines induce a robust immune response, however, their efficacy, has been shown to be decreased among individuals who are immunocompromised. Patients treated for hematologic cancers, in particular, receive treatment regimens that damage healthy immune cells, particularly B cells, said Juliane Walz, MD, the study’s senior author and professor of medicine at University Hospital Tübingen (Germany).
“In the clinic, we see many cancer patients who do not mount sufficient humoral immune responses after vaccination with available SARS-CoV-2 vaccines,” Dr. Walz said. “These patients are at a high risk for a severe course of COVID-19.”
B-cell deficiency, she stated, can be compensated for by enhancing T-cell responses against SARS-CoV-2, which can then combat infections in the absence of neutralizing antibodies.
In a prior study of CoVac-1 among 36 adults without immune deficiency, the vaccine elicited T-cell responses that were still robust 3 months post vaccination, and that included responses against omicron and other key SARS-CoV-2 variants.
While mRNA-based or adenoviral vector-based vaccines are limited to the spike protein and are thus prone to loss of activity because of viral mutations, CoVac-1–induced T-cell immunity is far more intense and broader, Dr. Walz said.
CoVac-1 is a peptide vaccine that is injected directly rather than being encoded via mRNA and targets different viral components. It would not be given, however, to healthy, immunocompetent adults because it is important for them to have both B-cell antibody and T-cell response.
The patients with B-cell deficiency recruited for the study were given a single dose of CoVac-1 and assessed for safety and immunogenicity until day 56. Prior vaccinations with an approved SARS-CoV-2 vaccine had failed to elicit a humoral response in 87% of the subjects.
“Our vaccine does not induce antibody responses,” Dr. Walz said. “However, it could be used to induce broad T-cell responses as a complementary or additive vaccine for elderly adults. In the elderly, antibody responses decline very, very fast after vaccination.”
Dr. Walz said that CoVac-1 could find application in various syndromes associated with congenital B-cell deficiencies, in autoimmune diseases such as rheumatoid arthritis and multiple sclerosis, or diseases treated with rituximab or other B cell–depleting therapies (for example, ofatumumab, blinatumomab, or chimeric antigen receptor T cells), and in transplant patients.
A phase 3 study of CoVac-1 versus placebo is under discussion and would require about 300-500 subjects, Dr. Walz said.
“CoVac-1 is designed to induce broad and long-lasting SARS-CoV-2 T-cell immunity, even in individuals who have impaired ability to mount sufficient immunity from a currently approved vaccine, and thus protect these high-risk patients from a severe course of COVID-19,” Dr. Walz said.
“Having an option for these patients is just critical – so this is significant work,” said Ana Maria Lopez, MD, MPH, of the Sidney Kimmel Cancer Center–Jefferson Health, Philadelphia.
Limitations of this study included the small sample size with low racial and ethnic diversity, Dr. Walz stated.
Funding was provided by the Ministry of Science, Research and the Arts of the state of Baden-Württemberg; the Federal Ministry of Research and Education in Germany; the German Research Foundation under Germany’s Excellence Strategy; and the Clinical Cooperation Unit Translational Immunology at University Hospital Tübingen. Dr. Walz holds the CoVac-1 patent.
FROM AACR 2022
1 in 7 breast cancer patients report worsening personal finances
a new study found. Factors like disease severity and treatment type didn’t seem to have an impact on financial status.
The findings, presented at the annual meeting of the American Association for Cancer Research, were unexpected. “We were surprised that we did not find that patients who received more aggressive therapies were more likely to experience worsening financial concerns,” said corresponding author and medical oncologist Kathryn J. Ruddy, MD, of the Mayo Clinici in Rochester, Minn.
The study was undertaken to understand the financial stress facing patients with breast cancer. The question was whether individual or disease factors, or both, were at play.
The study is based on results from the Mayo Clinic Breast Disease Registry, a prospective cohort of patient who were at Mayo Clinic Rochester. Participants answered questions about their finances at baseline and then again at annual follow-ups.
Researchers examined survey findings from 1,957 patients (mean age 58.5, 99.1% female, 95.4% White, 54.9% bachelor degree or higher) who answered questions at least twice from 2015-2020. The average time between diagnosis and the most recent follow-up was 25.6 months.
Of the 1,957 patients, 357 (18.2%) said their finances deteriorated as measured by a 1 point or higher decline on a 10-point scale.
There was no statistically significant link between deteriorating finances and age, race, employment status, stage of cancer at diagnosis, type of cancer, or treatment type. There was a slight link between deteriorating finances and reporting that they were in the category of “pay bills, no money for special things” near diagnosis.
Other research has suggested that breast cancer may not disrupt finances to a large extent, at least early on. Earlier in 2022, Stanford (Calif.) University researchers reported the results of a survey of 273 breast and gynecologic cancer patients who were surveyed about their finances at a mean of 3.4 years after diagnosis. While one-third said their cancer caused career changes, the study described overall financial toxicity as mild.
In regard to limitations, the subject population of the new study is overwhelmingly White, and the finances were self-reported by those who participated in the survey. Also, “because our participants were recruited at a tertiary medical center, there were relatively financially secure at baseline,” Dr. Ruddy said. “More financial hardship would be expected in a more financially diverse population.”
In an interview, Cathy Bradley, PhD, associate dean for research at the University of Colorado at Denver and deputy director of the University of Colorado Cancer Center, both in Aurora, praised the study as “an important start toward assessing financial burden in the clinic. Having more universal assessments in the clinic would remove stigma.”
She cautioned about interpreting a seemingly low number of patients whose financial situation worsened. “This was for a single site where there is a high rate of health insurance either through Medicare or Medicaid. There may be some selection bias as well given that Mayo may attract a wealthier patient population. Most women completed treatment and may not have been on long-term therapies.”
Moving forward, Dr. Ruddy said, “we hope to study cost of oncologic care in more geographically and financially diverse populations with breast cancer and other cancers.”
The study was funded by the Breast Cancer Research Foundation and National Cancer Institute. The study authors and Dr. Ruddy report no relevant disclosures.
a new study found. Factors like disease severity and treatment type didn’t seem to have an impact on financial status.
The findings, presented at the annual meeting of the American Association for Cancer Research, were unexpected. “We were surprised that we did not find that patients who received more aggressive therapies were more likely to experience worsening financial concerns,” said corresponding author and medical oncologist Kathryn J. Ruddy, MD, of the Mayo Clinici in Rochester, Minn.
The study was undertaken to understand the financial stress facing patients with breast cancer. The question was whether individual or disease factors, or both, were at play.
The study is based on results from the Mayo Clinic Breast Disease Registry, a prospective cohort of patient who were at Mayo Clinic Rochester. Participants answered questions about their finances at baseline and then again at annual follow-ups.
Researchers examined survey findings from 1,957 patients (mean age 58.5, 99.1% female, 95.4% White, 54.9% bachelor degree or higher) who answered questions at least twice from 2015-2020. The average time between diagnosis and the most recent follow-up was 25.6 months.
Of the 1,957 patients, 357 (18.2%) said their finances deteriorated as measured by a 1 point or higher decline on a 10-point scale.
There was no statistically significant link between deteriorating finances and age, race, employment status, stage of cancer at diagnosis, type of cancer, or treatment type. There was a slight link between deteriorating finances and reporting that they were in the category of “pay bills, no money for special things” near diagnosis.
Other research has suggested that breast cancer may not disrupt finances to a large extent, at least early on. Earlier in 2022, Stanford (Calif.) University researchers reported the results of a survey of 273 breast and gynecologic cancer patients who were surveyed about their finances at a mean of 3.4 years after diagnosis. While one-third said their cancer caused career changes, the study described overall financial toxicity as mild.
In regard to limitations, the subject population of the new study is overwhelmingly White, and the finances were self-reported by those who participated in the survey. Also, “because our participants were recruited at a tertiary medical center, there were relatively financially secure at baseline,” Dr. Ruddy said. “More financial hardship would be expected in a more financially diverse population.”
In an interview, Cathy Bradley, PhD, associate dean for research at the University of Colorado at Denver and deputy director of the University of Colorado Cancer Center, both in Aurora, praised the study as “an important start toward assessing financial burden in the clinic. Having more universal assessments in the clinic would remove stigma.”
She cautioned about interpreting a seemingly low number of patients whose financial situation worsened. “This was for a single site where there is a high rate of health insurance either through Medicare or Medicaid. There may be some selection bias as well given that Mayo may attract a wealthier patient population. Most women completed treatment and may not have been on long-term therapies.”
Moving forward, Dr. Ruddy said, “we hope to study cost of oncologic care in more geographically and financially diverse populations with breast cancer and other cancers.”
The study was funded by the Breast Cancer Research Foundation and National Cancer Institute. The study authors and Dr. Ruddy report no relevant disclosures.
a new study found. Factors like disease severity and treatment type didn’t seem to have an impact on financial status.
The findings, presented at the annual meeting of the American Association for Cancer Research, were unexpected. “We were surprised that we did not find that patients who received more aggressive therapies were more likely to experience worsening financial concerns,” said corresponding author and medical oncologist Kathryn J. Ruddy, MD, of the Mayo Clinici in Rochester, Minn.
The study was undertaken to understand the financial stress facing patients with breast cancer. The question was whether individual or disease factors, or both, were at play.
The study is based on results from the Mayo Clinic Breast Disease Registry, a prospective cohort of patient who were at Mayo Clinic Rochester. Participants answered questions about their finances at baseline and then again at annual follow-ups.
Researchers examined survey findings from 1,957 patients (mean age 58.5, 99.1% female, 95.4% White, 54.9% bachelor degree or higher) who answered questions at least twice from 2015-2020. The average time between diagnosis and the most recent follow-up was 25.6 months.
Of the 1,957 patients, 357 (18.2%) said their finances deteriorated as measured by a 1 point or higher decline on a 10-point scale.
There was no statistically significant link between deteriorating finances and age, race, employment status, stage of cancer at diagnosis, type of cancer, or treatment type. There was a slight link between deteriorating finances and reporting that they were in the category of “pay bills, no money for special things” near diagnosis.
Other research has suggested that breast cancer may not disrupt finances to a large extent, at least early on. Earlier in 2022, Stanford (Calif.) University researchers reported the results of a survey of 273 breast and gynecologic cancer patients who were surveyed about their finances at a mean of 3.4 years after diagnosis. While one-third said their cancer caused career changes, the study described overall financial toxicity as mild.
In regard to limitations, the subject population of the new study is overwhelmingly White, and the finances were self-reported by those who participated in the survey. Also, “because our participants were recruited at a tertiary medical center, there were relatively financially secure at baseline,” Dr. Ruddy said. “More financial hardship would be expected in a more financially diverse population.”
In an interview, Cathy Bradley, PhD, associate dean for research at the University of Colorado at Denver and deputy director of the University of Colorado Cancer Center, both in Aurora, praised the study as “an important start toward assessing financial burden in the clinic. Having more universal assessments in the clinic would remove stigma.”
She cautioned about interpreting a seemingly low number of patients whose financial situation worsened. “This was for a single site where there is a high rate of health insurance either through Medicare or Medicaid. There may be some selection bias as well given that Mayo may attract a wealthier patient population. Most women completed treatment and may not have been on long-term therapies.”
Moving forward, Dr. Ruddy said, “we hope to study cost of oncologic care in more geographically and financially diverse populations with breast cancer and other cancers.”
The study was funded by the Breast Cancer Research Foundation and National Cancer Institute. The study authors and Dr. Ruddy report no relevant disclosures.
FROM AACR 2022
Omega-3 fatty acids linked to less FOXA1 in benign breast tissue
in benign breast tissue, potentially pointing the way toward the use of the pioneer transcription factor as a helpful biomarker for breast cancer researchers.
The findings were released at the annual meeting of the American Association for Cancer Research.
In the study, researchers who were led by Bruce F. Kimler, PhD, a radiation biologist and breast cancer researcher at the University of Kansas Medical Center, Kansas City, examined benign breast tissue cells aspirated from 12 women (mean age, 53 years; 7 on low-dose hormone replacement) before and after 6 months of high-dose omega-3 fatty acid supplementation. After the supplementation, FOXA1 positive cells fell in 11 of 12 women (P = .019). “There was a robust linear relationship between stain positivity for FOXA1 and AGR2,” the researchers reported (P < .001).
Increased FOXA1 activity along with GRHL2) transcription factor can boost endocrine resistance, while omega-3 fatty acids can reduce it.
In an interview, Robert S. Chapkin, PhD, the Allen Endowed Chair in Nutrition and Chronic Disease Prevention at Texas A&M University, College Station, said it’s important to examine the value of omega-3 fatty acid supplementation, and the understanding of biomarkers is crucial. “Omega 3 fatty acids are pleiotropic, dose dependent, and likely impact multiple signaling mechanisms in select cells types and cancer contexts. The key is to dissect out the highest impact targets and pursue them in the context of preclinical and clinical studies.”
However, he said, “in many cases, the lack of a mechanistic understanding detracts from the merit of the work.”
Studies like this are useful in the development of clinical trials to test the value of high-dose omega-3 fatty acids in breast cancer prevention trials, said Carol Fabian, MD, a breast medical oncologist with the University of Kansas Medical Center, and the study’s first author.
“They help us understand both what dose will be needed and biomarkers that will likely be helpful in predicting response. Early-phase trials with biomarker modulation as a primary endpoint are generally necessary to make sure you have the right dose for the target population prior to committing to a long-term cancer incidence study involving thousands of women and tens of millions of dollars,” she said.
What’s next? “This work was done on reserved specimens from a prior pilot trial,” Dr. Fabian said. “We need a placebo-controlled study to know for sure that omega-3 FA in a dose of about 3.2g daily, or about 2% of calories, modulates FOXA1 and/or AGR2 in postmenopausal women.”
Previously, she said, the researchers “found that high dose omega-3 administered to overweight peri- and postmenopausal high-risk women undergoing a 6-month weight loss intervention increased the number of systemic risk biomarkers which were favorably modulated compared to placebo despite the same median weight loss in each group [–10%],” Dr. Fabian said. “We want to duplicate that finding in a larger study as well as determine if omega-3 fatty acids can block tamoxifen-induced increases in AGR2 associated with endocrine resistance.”
The study was funded by the Breast Cancer Research Foundation, the Morris Family Foundation, and the University of Kansas Cancer Center. The authors and Chapkin report no relevant disclosures.
in benign breast tissue, potentially pointing the way toward the use of the pioneer transcription factor as a helpful biomarker for breast cancer researchers.
The findings were released at the annual meeting of the American Association for Cancer Research.
In the study, researchers who were led by Bruce F. Kimler, PhD, a radiation biologist and breast cancer researcher at the University of Kansas Medical Center, Kansas City, examined benign breast tissue cells aspirated from 12 women (mean age, 53 years; 7 on low-dose hormone replacement) before and after 6 months of high-dose omega-3 fatty acid supplementation. After the supplementation, FOXA1 positive cells fell in 11 of 12 women (P = .019). “There was a robust linear relationship between stain positivity for FOXA1 and AGR2,” the researchers reported (P < .001).
Increased FOXA1 activity along with GRHL2) transcription factor can boost endocrine resistance, while omega-3 fatty acids can reduce it.
In an interview, Robert S. Chapkin, PhD, the Allen Endowed Chair in Nutrition and Chronic Disease Prevention at Texas A&M University, College Station, said it’s important to examine the value of omega-3 fatty acid supplementation, and the understanding of biomarkers is crucial. “Omega 3 fatty acids are pleiotropic, dose dependent, and likely impact multiple signaling mechanisms in select cells types and cancer contexts. The key is to dissect out the highest impact targets and pursue them in the context of preclinical and clinical studies.”
However, he said, “in many cases, the lack of a mechanistic understanding detracts from the merit of the work.”
Studies like this are useful in the development of clinical trials to test the value of high-dose omega-3 fatty acids in breast cancer prevention trials, said Carol Fabian, MD, a breast medical oncologist with the University of Kansas Medical Center, and the study’s first author.
“They help us understand both what dose will be needed and biomarkers that will likely be helpful in predicting response. Early-phase trials with biomarker modulation as a primary endpoint are generally necessary to make sure you have the right dose for the target population prior to committing to a long-term cancer incidence study involving thousands of women and tens of millions of dollars,” she said.
What’s next? “This work was done on reserved specimens from a prior pilot trial,” Dr. Fabian said. “We need a placebo-controlled study to know for sure that omega-3 FA in a dose of about 3.2g daily, or about 2% of calories, modulates FOXA1 and/or AGR2 in postmenopausal women.”
Previously, she said, the researchers “found that high dose omega-3 administered to overweight peri- and postmenopausal high-risk women undergoing a 6-month weight loss intervention increased the number of systemic risk biomarkers which were favorably modulated compared to placebo despite the same median weight loss in each group [–10%],” Dr. Fabian said. “We want to duplicate that finding in a larger study as well as determine if omega-3 fatty acids can block tamoxifen-induced increases in AGR2 associated with endocrine resistance.”
The study was funded by the Breast Cancer Research Foundation, the Morris Family Foundation, and the University of Kansas Cancer Center. The authors and Chapkin report no relevant disclosures.
in benign breast tissue, potentially pointing the way toward the use of the pioneer transcription factor as a helpful biomarker for breast cancer researchers.
The findings were released at the annual meeting of the American Association for Cancer Research.
In the study, researchers who were led by Bruce F. Kimler, PhD, a radiation biologist and breast cancer researcher at the University of Kansas Medical Center, Kansas City, examined benign breast tissue cells aspirated from 12 women (mean age, 53 years; 7 on low-dose hormone replacement) before and after 6 months of high-dose omega-3 fatty acid supplementation. After the supplementation, FOXA1 positive cells fell in 11 of 12 women (P = .019). “There was a robust linear relationship between stain positivity for FOXA1 and AGR2,” the researchers reported (P < .001).
Increased FOXA1 activity along with GRHL2) transcription factor can boost endocrine resistance, while omega-3 fatty acids can reduce it.
In an interview, Robert S. Chapkin, PhD, the Allen Endowed Chair in Nutrition and Chronic Disease Prevention at Texas A&M University, College Station, said it’s important to examine the value of omega-3 fatty acid supplementation, and the understanding of biomarkers is crucial. “Omega 3 fatty acids are pleiotropic, dose dependent, and likely impact multiple signaling mechanisms in select cells types and cancer contexts. The key is to dissect out the highest impact targets and pursue them in the context of preclinical and clinical studies.”
However, he said, “in many cases, the lack of a mechanistic understanding detracts from the merit of the work.”
Studies like this are useful in the development of clinical trials to test the value of high-dose omega-3 fatty acids in breast cancer prevention trials, said Carol Fabian, MD, a breast medical oncologist with the University of Kansas Medical Center, and the study’s first author.
“They help us understand both what dose will be needed and biomarkers that will likely be helpful in predicting response. Early-phase trials with biomarker modulation as a primary endpoint are generally necessary to make sure you have the right dose for the target population prior to committing to a long-term cancer incidence study involving thousands of women and tens of millions of dollars,” she said.
What’s next? “This work was done on reserved specimens from a prior pilot trial,” Dr. Fabian said. “We need a placebo-controlled study to know for sure that omega-3 FA in a dose of about 3.2g daily, or about 2% of calories, modulates FOXA1 and/or AGR2 in postmenopausal women.”
Previously, she said, the researchers “found that high dose omega-3 administered to overweight peri- and postmenopausal high-risk women undergoing a 6-month weight loss intervention increased the number of systemic risk biomarkers which were favorably modulated compared to placebo despite the same median weight loss in each group [–10%],” Dr. Fabian said. “We want to duplicate that finding in a larger study as well as determine if omega-3 fatty acids can block tamoxifen-induced increases in AGR2 associated with endocrine resistance.”
The study was funded by the Breast Cancer Research Foundation, the Morris Family Foundation, and the University of Kansas Cancer Center. The authors and Chapkin report no relevant disclosures.
FROM AACR 2022
Assay-guided chemo in recurrent glioma linked to longer survival
New research suggests that chemotherapy treatments for recurrent high-grade gliomas indicated by an assay-guided tool called ChemoID can boost median survival, compared with physician choice.
The randomized, phase 3 trial results were presented at the annual meeting of the American Association for Cancer Research.
Over a median follow-up of 9 months, median overall survival in the ChemoID group was 12.5 months (95% confidence interval, 10.2-14.7), compared with 9 months (95% CI, 4.2-13.8) in the group whose treatments were chosen by physicians (P = .010).
“While the prognosis is very dismal, we’re still providing a 3.5-month benefit in the guided arm versus physician choice,” said study coauthor Jagan Valluri, PhD, professor of cellular biology and integrative medicine at Marshall University, Huntington, W. Va.
As Dr. Valluri noted, patients with recurrent high-grade gliomas typically have failed radiation and are left with poor prognoses. Fewer than one in four patients respond to chemotherapy at this point, he said, and the response is inconsistent from patient to patient.
“We developed ChemoID since cancer is very unique,” he said, “and any kind of chemotherapy should be tailored to each individual patient on a case-by-case basis.”
The ChemoID tool, a proprietary assay, tests the response of patient cells to various chemotherapy treatments. A test costs $3,500, and some insurers cover it, Dr. Valluri said.
For the new study, researchers randomly assigned 50 patients with grade III/IV recurrent glioma to be treated with chemotherapy chosen by physicians or chemotherapy recommended by the ChemoID tool.
Risk of death in the ChemoID group was lower than in the physician-guided group (hazard ratio, 0.44; 95% CI, 0.24-0.81; P = .008), and median progression-free survival was higher in the ChemoID group (10.1 months vs. 3.5 months; 95% CI, 4.8-15.4 vs. 1.9-5.1; HR, 0.25; 95% CI, 0.14-0.44; P < .001).
“We want the treating physician to have actionable tools in front of them before they treat the patient,” Dr. Valluri said. “We want this assay to become mainstream and part of the standard care workup.”
The study is funded by Cordgenics, where Dr. Valluri serves as chief operating officer.
New research suggests that chemotherapy treatments for recurrent high-grade gliomas indicated by an assay-guided tool called ChemoID can boost median survival, compared with physician choice.
The randomized, phase 3 trial results were presented at the annual meeting of the American Association for Cancer Research.
Over a median follow-up of 9 months, median overall survival in the ChemoID group was 12.5 months (95% confidence interval, 10.2-14.7), compared with 9 months (95% CI, 4.2-13.8) in the group whose treatments were chosen by physicians (P = .010).
“While the prognosis is very dismal, we’re still providing a 3.5-month benefit in the guided arm versus physician choice,” said study coauthor Jagan Valluri, PhD, professor of cellular biology and integrative medicine at Marshall University, Huntington, W. Va.
As Dr. Valluri noted, patients with recurrent high-grade gliomas typically have failed radiation and are left with poor prognoses. Fewer than one in four patients respond to chemotherapy at this point, he said, and the response is inconsistent from patient to patient.
“We developed ChemoID since cancer is very unique,” he said, “and any kind of chemotherapy should be tailored to each individual patient on a case-by-case basis.”
The ChemoID tool, a proprietary assay, tests the response of patient cells to various chemotherapy treatments. A test costs $3,500, and some insurers cover it, Dr. Valluri said.
For the new study, researchers randomly assigned 50 patients with grade III/IV recurrent glioma to be treated with chemotherapy chosen by physicians or chemotherapy recommended by the ChemoID tool.
Risk of death in the ChemoID group was lower than in the physician-guided group (hazard ratio, 0.44; 95% CI, 0.24-0.81; P = .008), and median progression-free survival was higher in the ChemoID group (10.1 months vs. 3.5 months; 95% CI, 4.8-15.4 vs. 1.9-5.1; HR, 0.25; 95% CI, 0.14-0.44; P < .001).
“We want the treating physician to have actionable tools in front of them before they treat the patient,” Dr. Valluri said. “We want this assay to become mainstream and part of the standard care workup.”
The study is funded by Cordgenics, where Dr. Valluri serves as chief operating officer.
New research suggests that chemotherapy treatments for recurrent high-grade gliomas indicated by an assay-guided tool called ChemoID can boost median survival, compared with physician choice.
The randomized, phase 3 trial results were presented at the annual meeting of the American Association for Cancer Research.
Over a median follow-up of 9 months, median overall survival in the ChemoID group was 12.5 months (95% confidence interval, 10.2-14.7), compared with 9 months (95% CI, 4.2-13.8) in the group whose treatments were chosen by physicians (P = .010).
“While the prognosis is very dismal, we’re still providing a 3.5-month benefit in the guided arm versus physician choice,” said study coauthor Jagan Valluri, PhD, professor of cellular biology and integrative medicine at Marshall University, Huntington, W. Va.
As Dr. Valluri noted, patients with recurrent high-grade gliomas typically have failed radiation and are left with poor prognoses. Fewer than one in four patients respond to chemotherapy at this point, he said, and the response is inconsistent from patient to patient.
“We developed ChemoID since cancer is very unique,” he said, “and any kind of chemotherapy should be tailored to each individual patient on a case-by-case basis.”
The ChemoID tool, a proprietary assay, tests the response of patient cells to various chemotherapy treatments. A test costs $3,500, and some insurers cover it, Dr. Valluri said.
For the new study, researchers randomly assigned 50 patients with grade III/IV recurrent glioma to be treated with chemotherapy chosen by physicians or chemotherapy recommended by the ChemoID tool.
Risk of death in the ChemoID group was lower than in the physician-guided group (hazard ratio, 0.44; 95% CI, 0.24-0.81; P = .008), and median progression-free survival was higher in the ChemoID group (10.1 months vs. 3.5 months; 95% CI, 4.8-15.4 vs. 1.9-5.1; HR, 0.25; 95% CI, 0.14-0.44; P < .001).
“We want the treating physician to have actionable tools in front of them before they treat the patient,” Dr. Valluri said. “We want this assay to become mainstream and part of the standard care workup.”
The study is funded by Cordgenics, where Dr. Valluri serves as chief operating officer.
FROM AACR 2022