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New approval in early breast cancer: First advance in 20 years
Abemaciclib had already been approved for use in the treatment of HR+, HER2– advanced or metastatic breast cancer.
Now it is also approved for use in HR+, HER2– early breast cancer for patients who have high-risk, node-positive disease and whose tumors have a Ki-67 score of 20% or higher, as determined by a U.S. Food and Drug Administration–approved test.
The FDA also approved the Ki-67 IHC MIB-1 pharmDx (Dako Omnis) assay for use as a companion diagnostic test.
This is the first CDK4/6 inhibitor to be approved for use in this patient population.
Approximately 70% of all breast cancers are of the HR+, HER2– subtype.
The approval is based on some of the results from the monarchE study, which was presented last year at the annual meeting of the European Society of Medical Oncology and was simultaneously published in the Journal of Clinical Oncology.
The results showed that the addition of abemaciclib to endocrine therapy (tamoxifen or aromatase inhibitors) significantly improved invasive disease-free survival (IDFS), which was defined on the basis of the length of time before breast cancer comes back, any new cancer develops, or death.
The 2-year IDFS rates were 92.2% with the combination vs. 88.7% for endocrine therapy alone for the overall patient population.
“This is the first time in more than 20 years that we have seen an advance in the adjuvant treatment of this form of breast cancer,” lead investigator Stephen Johnston, MD, PhD, from the Royal Marsden Hospital NHS Foundation Trust, London, said at the meeting, as reported at the time by this news organization.
Reacting to the findings, Giuseppe Curigliano, MD, PhD, head of the division of early drug development at the European Institute of Oncology, Milan, said, “This is a very important trial and the findings will change practice.”
He predicted that once the drug is approved for use in high-risk HR+, HER2– early breast cancer, “the new standard of care for these patients will be to add 2 years of abemaciclib to endocrine therapy.”
In a press release about the new approval from the manufacturer (Lilly), another investigator on the monarchE study, Sara M. Tolaney, MD, MPH, Harvard Medical School and the Dana-Farber Cancer Institute, Boston, agreed that the results are practice changing. She said that the combination of abemaciclib and endocrine therapy is a potential new standard of care for this patient population. “We are encouraged by the marked reduction in the risk of recurrence even beyond the 2-year treatment period in these patients, and I’m grateful to be able to offer this as a treatment option to my patients,” she said.
On Twitter, she commented that restricting the indication to patients who show Ki67 ≥20% is “interesting,” inasmuch as benefits were seen in patients with both low and high Ki67.
Hal Burstein, MD, from Dana-Farber, also found this detail “interesting, as Ki67 testing remains a very controversial topic and difficult to standardize.”
Replying, Pedro Exman, MD, from the Hospital Alemão Oswaldo Cruz, in São Paulo, said: “Does it make sense to approve only in a subset of patients based in a positive subgroup analysis of a positive ITT study that was not even described in the JCO publication?”
Other experts said they were eagerly awaiting further results, particularly on overall survival, from the monarchE trial. New data are due to be presented on Oct. 14 at an ESMO virtual plenary session.
Commenting late last year about these results, George W. Sledge Jr, MD, professor of medicine at Stanford University Medical Center, Palo Alto, Calif., said that the median follow-up time “is still quite short for a study of ER+ adjuvant therapy, where the majority of recurrences and deaths occur after 5 years in many studies.”
Consequently, “we still have a long way to go to understand the ultimate effects of CDK4/6 inhibition on early-stage ER+ breast cancer, particularly on late recurrences,” he told this news organization at the time.
Agreed, said C. Kent Osborne, MD, codirector of the San Antonio Breast Cancer Symposium and founding director of the Duncan Cancer Center at Baylor College of Medicine, Houston, Tex. The results are “very encouraging, especially in the subgroup of tumors with high proliferation” (identified by the K1-67 score).
However, Dr. Osborne also urged caution in the interpretation of the results, “given the still rather short follow-up, given that that ER+ disease is known for its persistent recurrence rate, even past 10 years.”
He also noted that “this class of inhibitors is likely cytostatic, rather than cytocidal, meaning that it blocks cell proliferation rather than killing the cells.” Questions therefore remain over whether the survival curves for combination therapy will come together with those for endocrine therapy alone once patients stop taking the drug.
Study details
The monarchE trial involved patients with HR+, HER2–, high-risk early breast cancer who had undergone surgery and, as indicated, radiotherapy and/or adjuvant/neoadjuvant chemotherapy. Patients with four or more positive nodes or one to three nodes and either tumors of size ≥5 cm, histologic grade 3, or central Ki-67 ≥20% were eligible; 5,637 patients were randomly assigned in a 1:1 ratio to receive standard-of-care adjuvant endocrine therapy (ET) with or without abemaciclib (150 mg twice daily for 2 years).
A preplanned interim analysis was carried out after 323 IDFS events were observed in the intent-to-treat population. The results, as published last year in the Journal of Clinical Oncology, show that abemaciclib plus ET yielded superior IDFS in comparison with ET alone (P = .01; hazard ratio, 0.75; 95% confidence interval, 0.60-0.93), with 2-year IDFS rates of 92.2% vs. 88.7%.
In the press release announcing the approval of the new indication, the manufacturer notes that the approval was based on the results from a subgroup of 2,003 patients whose tumors had a Ki-67 score of ≥20% and who were also at high risk for recurrence (≥four positive axillary lymph nodes [ALN], or one-three positive ALN with grade 3 disease and/or tumor size ≥5 cm).
There was a statistically significant improvement in IDFS for this prespecified subgroup of patients (HR, 0.643; 95% CI, 0.475-0.872; P = .0042).
With additional follow-up, conducted post hoc, the results showed a 37% decrease in the risk for breast cancer recurrence or death, compared with ET alone (HR, 0.626; 95% CI, 0.49-0.80) and an absolute benefit in IDFS event rate of 7.1% at 3 years. IDFS was 86.1% for abemaciclib plus ET vs. 79.0% for ET alone.
Adverse reactions from monarchE were consistent with the known safety profile for abemaciclib, the company noted. Safety and tolerability were evaluated in 5,591 patients. The most common adverse reactions reported (≥10%) with abemaciclib plus ET vs. ET alone were diarrhea (84% vs. 9%), infections (51% vs. 39%), neutropenia (46% vs. 6%), fatigue (41% vs. 18%), leukopenia (38% vs. 7%), nausea (30% vs. 9%), anemia (24% vs. 4%), headache (20% vs. 15%), vomiting (18% vs. 4.6%), stomatitis (14% vs. 5%), lymphopenia (14% vs. 3%), thrombocytopenia (13% vs. 2%), decreased appetite (12% vs. 2.4%), increased ALT (12% vs. 6%), increased AST (12% vs. 5%), dizziness (11% vs. 7%), rash (11% vs. 4.5%), and alopecia (11% vs. 2.7 %).
A version of this article first appeared on Medscape.com.
Abemaciclib had already been approved for use in the treatment of HR+, HER2– advanced or metastatic breast cancer.
Now it is also approved for use in HR+, HER2– early breast cancer for patients who have high-risk, node-positive disease and whose tumors have a Ki-67 score of 20% or higher, as determined by a U.S. Food and Drug Administration–approved test.
The FDA also approved the Ki-67 IHC MIB-1 pharmDx (Dako Omnis) assay for use as a companion diagnostic test.
This is the first CDK4/6 inhibitor to be approved for use in this patient population.
Approximately 70% of all breast cancers are of the HR+, HER2– subtype.
The approval is based on some of the results from the monarchE study, which was presented last year at the annual meeting of the European Society of Medical Oncology and was simultaneously published in the Journal of Clinical Oncology.
The results showed that the addition of abemaciclib to endocrine therapy (tamoxifen or aromatase inhibitors) significantly improved invasive disease-free survival (IDFS), which was defined on the basis of the length of time before breast cancer comes back, any new cancer develops, or death.
The 2-year IDFS rates were 92.2% with the combination vs. 88.7% for endocrine therapy alone for the overall patient population.
“This is the first time in more than 20 years that we have seen an advance in the adjuvant treatment of this form of breast cancer,” lead investigator Stephen Johnston, MD, PhD, from the Royal Marsden Hospital NHS Foundation Trust, London, said at the meeting, as reported at the time by this news organization.
Reacting to the findings, Giuseppe Curigliano, MD, PhD, head of the division of early drug development at the European Institute of Oncology, Milan, said, “This is a very important trial and the findings will change practice.”
He predicted that once the drug is approved for use in high-risk HR+, HER2– early breast cancer, “the new standard of care for these patients will be to add 2 years of abemaciclib to endocrine therapy.”
In a press release about the new approval from the manufacturer (Lilly), another investigator on the monarchE study, Sara M. Tolaney, MD, MPH, Harvard Medical School and the Dana-Farber Cancer Institute, Boston, agreed that the results are practice changing. She said that the combination of abemaciclib and endocrine therapy is a potential new standard of care for this patient population. “We are encouraged by the marked reduction in the risk of recurrence even beyond the 2-year treatment period in these patients, and I’m grateful to be able to offer this as a treatment option to my patients,” she said.
On Twitter, she commented that restricting the indication to patients who show Ki67 ≥20% is “interesting,” inasmuch as benefits were seen in patients with both low and high Ki67.
Hal Burstein, MD, from Dana-Farber, also found this detail “interesting, as Ki67 testing remains a very controversial topic and difficult to standardize.”
Replying, Pedro Exman, MD, from the Hospital Alemão Oswaldo Cruz, in São Paulo, said: “Does it make sense to approve only in a subset of patients based in a positive subgroup analysis of a positive ITT study that was not even described in the JCO publication?”
Other experts said they were eagerly awaiting further results, particularly on overall survival, from the monarchE trial. New data are due to be presented on Oct. 14 at an ESMO virtual plenary session.
Commenting late last year about these results, George W. Sledge Jr, MD, professor of medicine at Stanford University Medical Center, Palo Alto, Calif., said that the median follow-up time “is still quite short for a study of ER+ adjuvant therapy, where the majority of recurrences and deaths occur after 5 years in many studies.”
Consequently, “we still have a long way to go to understand the ultimate effects of CDK4/6 inhibition on early-stage ER+ breast cancer, particularly on late recurrences,” he told this news organization at the time.
Agreed, said C. Kent Osborne, MD, codirector of the San Antonio Breast Cancer Symposium and founding director of the Duncan Cancer Center at Baylor College of Medicine, Houston, Tex. The results are “very encouraging, especially in the subgroup of tumors with high proliferation” (identified by the K1-67 score).
However, Dr. Osborne also urged caution in the interpretation of the results, “given the still rather short follow-up, given that that ER+ disease is known for its persistent recurrence rate, even past 10 years.”
He also noted that “this class of inhibitors is likely cytostatic, rather than cytocidal, meaning that it blocks cell proliferation rather than killing the cells.” Questions therefore remain over whether the survival curves for combination therapy will come together with those for endocrine therapy alone once patients stop taking the drug.
Study details
The monarchE trial involved patients with HR+, HER2–, high-risk early breast cancer who had undergone surgery and, as indicated, radiotherapy and/or adjuvant/neoadjuvant chemotherapy. Patients with four or more positive nodes or one to three nodes and either tumors of size ≥5 cm, histologic grade 3, or central Ki-67 ≥20% were eligible; 5,637 patients were randomly assigned in a 1:1 ratio to receive standard-of-care adjuvant endocrine therapy (ET) with or without abemaciclib (150 mg twice daily for 2 years).
A preplanned interim analysis was carried out after 323 IDFS events were observed in the intent-to-treat population. The results, as published last year in the Journal of Clinical Oncology, show that abemaciclib plus ET yielded superior IDFS in comparison with ET alone (P = .01; hazard ratio, 0.75; 95% confidence interval, 0.60-0.93), with 2-year IDFS rates of 92.2% vs. 88.7%.
In the press release announcing the approval of the new indication, the manufacturer notes that the approval was based on the results from a subgroup of 2,003 patients whose tumors had a Ki-67 score of ≥20% and who were also at high risk for recurrence (≥four positive axillary lymph nodes [ALN], or one-three positive ALN with grade 3 disease and/or tumor size ≥5 cm).
There was a statistically significant improvement in IDFS for this prespecified subgroup of patients (HR, 0.643; 95% CI, 0.475-0.872; P = .0042).
With additional follow-up, conducted post hoc, the results showed a 37% decrease in the risk for breast cancer recurrence or death, compared with ET alone (HR, 0.626; 95% CI, 0.49-0.80) and an absolute benefit in IDFS event rate of 7.1% at 3 years. IDFS was 86.1% for abemaciclib plus ET vs. 79.0% for ET alone.
Adverse reactions from monarchE were consistent with the known safety profile for abemaciclib, the company noted. Safety and tolerability were evaluated in 5,591 patients. The most common adverse reactions reported (≥10%) with abemaciclib plus ET vs. ET alone were diarrhea (84% vs. 9%), infections (51% vs. 39%), neutropenia (46% vs. 6%), fatigue (41% vs. 18%), leukopenia (38% vs. 7%), nausea (30% vs. 9%), anemia (24% vs. 4%), headache (20% vs. 15%), vomiting (18% vs. 4.6%), stomatitis (14% vs. 5%), lymphopenia (14% vs. 3%), thrombocytopenia (13% vs. 2%), decreased appetite (12% vs. 2.4%), increased ALT (12% vs. 6%), increased AST (12% vs. 5%), dizziness (11% vs. 7%), rash (11% vs. 4.5%), and alopecia (11% vs. 2.7 %).
A version of this article first appeared on Medscape.com.
Abemaciclib had already been approved for use in the treatment of HR+, HER2– advanced or metastatic breast cancer.
Now it is also approved for use in HR+, HER2– early breast cancer for patients who have high-risk, node-positive disease and whose tumors have a Ki-67 score of 20% or higher, as determined by a U.S. Food and Drug Administration–approved test.
The FDA also approved the Ki-67 IHC MIB-1 pharmDx (Dako Omnis) assay for use as a companion diagnostic test.
This is the first CDK4/6 inhibitor to be approved for use in this patient population.
Approximately 70% of all breast cancers are of the HR+, HER2– subtype.
The approval is based on some of the results from the monarchE study, which was presented last year at the annual meeting of the European Society of Medical Oncology and was simultaneously published in the Journal of Clinical Oncology.
The results showed that the addition of abemaciclib to endocrine therapy (tamoxifen or aromatase inhibitors) significantly improved invasive disease-free survival (IDFS), which was defined on the basis of the length of time before breast cancer comes back, any new cancer develops, or death.
The 2-year IDFS rates were 92.2% with the combination vs. 88.7% for endocrine therapy alone for the overall patient population.
“This is the first time in more than 20 years that we have seen an advance in the adjuvant treatment of this form of breast cancer,” lead investigator Stephen Johnston, MD, PhD, from the Royal Marsden Hospital NHS Foundation Trust, London, said at the meeting, as reported at the time by this news organization.
Reacting to the findings, Giuseppe Curigliano, MD, PhD, head of the division of early drug development at the European Institute of Oncology, Milan, said, “This is a very important trial and the findings will change practice.”
He predicted that once the drug is approved for use in high-risk HR+, HER2– early breast cancer, “the new standard of care for these patients will be to add 2 years of abemaciclib to endocrine therapy.”
In a press release about the new approval from the manufacturer (Lilly), another investigator on the monarchE study, Sara M. Tolaney, MD, MPH, Harvard Medical School and the Dana-Farber Cancer Institute, Boston, agreed that the results are practice changing. She said that the combination of abemaciclib and endocrine therapy is a potential new standard of care for this patient population. “We are encouraged by the marked reduction in the risk of recurrence even beyond the 2-year treatment period in these patients, and I’m grateful to be able to offer this as a treatment option to my patients,” she said.
On Twitter, she commented that restricting the indication to patients who show Ki67 ≥20% is “interesting,” inasmuch as benefits were seen in patients with both low and high Ki67.
Hal Burstein, MD, from Dana-Farber, also found this detail “interesting, as Ki67 testing remains a very controversial topic and difficult to standardize.”
Replying, Pedro Exman, MD, from the Hospital Alemão Oswaldo Cruz, in São Paulo, said: “Does it make sense to approve only in a subset of patients based in a positive subgroup analysis of a positive ITT study that was not even described in the JCO publication?”
Other experts said they were eagerly awaiting further results, particularly on overall survival, from the monarchE trial. New data are due to be presented on Oct. 14 at an ESMO virtual plenary session.
Commenting late last year about these results, George W. Sledge Jr, MD, professor of medicine at Stanford University Medical Center, Palo Alto, Calif., said that the median follow-up time “is still quite short for a study of ER+ adjuvant therapy, where the majority of recurrences and deaths occur after 5 years in many studies.”
Consequently, “we still have a long way to go to understand the ultimate effects of CDK4/6 inhibition on early-stage ER+ breast cancer, particularly on late recurrences,” he told this news organization at the time.
Agreed, said C. Kent Osborne, MD, codirector of the San Antonio Breast Cancer Symposium and founding director of the Duncan Cancer Center at Baylor College of Medicine, Houston, Tex. The results are “very encouraging, especially in the subgroup of tumors with high proliferation” (identified by the K1-67 score).
However, Dr. Osborne also urged caution in the interpretation of the results, “given the still rather short follow-up, given that that ER+ disease is known for its persistent recurrence rate, even past 10 years.”
He also noted that “this class of inhibitors is likely cytostatic, rather than cytocidal, meaning that it blocks cell proliferation rather than killing the cells.” Questions therefore remain over whether the survival curves for combination therapy will come together with those for endocrine therapy alone once patients stop taking the drug.
Study details
The monarchE trial involved patients with HR+, HER2–, high-risk early breast cancer who had undergone surgery and, as indicated, radiotherapy and/or adjuvant/neoadjuvant chemotherapy. Patients with four or more positive nodes or one to three nodes and either tumors of size ≥5 cm, histologic grade 3, or central Ki-67 ≥20% were eligible; 5,637 patients were randomly assigned in a 1:1 ratio to receive standard-of-care adjuvant endocrine therapy (ET) with or without abemaciclib (150 mg twice daily for 2 years).
A preplanned interim analysis was carried out after 323 IDFS events were observed in the intent-to-treat population. The results, as published last year in the Journal of Clinical Oncology, show that abemaciclib plus ET yielded superior IDFS in comparison with ET alone (P = .01; hazard ratio, 0.75; 95% confidence interval, 0.60-0.93), with 2-year IDFS rates of 92.2% vs. 88.7%.
In the press release announcing the approval of the new indication, the manufacturer notes that the approval was based on the results from a subgroup of 2,003 patients whose tumors had a Ki-67 score of ≥20% and who were also at high risk for recurrence (≥four positive axillary lymph nodes [ALN], or one-three positive ALN with grade 3 disease and/or tumor size ≥5 cm).
There was a statistically significant improvement in IDFS for this prespecified subgroup of patients (HR, 0.643; 95% CI, 0.475-0.872; P = .0042).
With additional follow-up, conducted post hoc, the results showed a 37% decrease in the risk for breast cancer recurrence or death, compared with ET alone (HR, 0.626; 95% CI, 0.49-0.80) and an absolute benefit in IDFS event rate of 7.1% at 3 years. IDFS was 86.1% for abemaciclib plus ET vs. 79.0% for ET alone.
Adverse reactions from monarchE were consistent with the known safety profile for abemaciclib, the company noted. Safety and tolerability were evaluated in 5,591 patients. The most common adverse reactions reported (≥10%) with abemaciclib plus ET vs. ET alone were diarrhea (84% vs. 9%), infections (51% vs. 39%), neutropenia (46% vs. 6%), fatigue (41% vs. 18%), leukopenia (38% vs. 7%), nausea (30% vs. 9%), anemia (24% vs. 4%), headache (20% vs. 15%), vomiting (18% vs. 4.6%), stomatitis (14% vs. 5%), lymphopenia (14% vs. 3%), thrombocytopenia (13% vs. 2%), decreased appetite (12% vs. 2.4%), increased ALT (12% vs. 6%), increased AST (12% vs. 5%), dizziness (11% vs. 7%), rash (11% vs. 4.5%), and alopecia (11% vs. 2.7 %).
A version of this article first appeared on Medscape.com.
Accelerated approval now full for pembro in bladder cancer
But one such accelerated approval has now been converted to a full approval, with a small label change, by the Food and Drug Administration.
The new full approval is for pembrolizumab (Keytruda) for first-line use for patients with locally advanced or metastatic urothelial carcinoma (mUC) who are not eligible for any platinum-containing chemotherapy. (The small label change is that mention of PD-L1 status and testing for this have been removed.)
The move is in accordance with recommendations by experts at a recent meeting of the Oncologic Drugs Advisory Committee. They voted 5-3 in favor of this accelerated approval staying. They also voted 10-1 in favor of another immunotherapy, atezolizumab (Tecentriq), for the same indication.
One of the arguments put forward to support these accelerated approvals staying in place is that there is an unmet need in this population of patients who are ineligible for platinum chemotherapy.
But this argument doesn’t hold water – the mere existence of one of these negates the “unmet need” argument for the other, wrote Bishal Gyawali, MD, PhD, from Queen’s University, Kingston, Ont., in a commentary on why the FDA’s accelerated approval pathway is broken.
“Even if there is a genuine ‘unmet need’ in a particular setting, these drugs did not meet the standard of improving survival. An unmet need doesn’t imply that the treatment void should be filled with a drug that provides nothing of value to patients,” Dr. Gyawali wrote.
“When we talk about an unmet need, we are speaking of drugs that provide a clinical benefit; any true unmet needs will continue to exist despite maintaining these approvals,” he argued.
After obtaining the accelerated approval for pembrolizumab for patients with bladder cancer who are not eligible for cisplatin-containing chemotherapy, the manufacturer (Merck) carried out a subsequent clinical trial but conducted it in patients who were eligible for platinum-containing chemotherapy (KEYNOTE-361). However, this trial did not meet its prespecified dual primary endpoints of overall survival or progression-free survival in comparison with standard of care chemotherapy, the company noted in a press release.
“We are working with urgency to advance studies to help more patients living with bladder and other types of cancer,” commented Scot Ebbinghaus, MD, vice president of clinical research, Merck Research Laboratories. The company said it has “an extensive clinical development in bladder cancer” and is exploring pembrolizumab use in many settings.
In addition to the new full approval for the first-line indication for patients who are ineligible for platinum chemotherapy, pembrolizumab has two other approved indications in this therapeutic area: the treatment of patients with locally advanced urothelial carcinoma or mUC who experience disease progression during or following platinum-containing chemotherapy or within 12 months of neoadjuvant or adjuvant treatment with platinum-containing chemotherapy; and the treatment of patients with bacillus Calmette-Guérin–unresponsive, high-risk, non–muscle-invasive bladder cancer with carcinoma in situ, with or without papillary tumors, who are ineligible for or have elected not to undergo cystectomy.
A version of this article first appeared on Medscape.com.
But one such accelerated approval has now been converted to a full approval, with a small label change, by the Food and Drug Administration.
The new full approval is for pembrolizumab (Keytruda) for first-line use for patients with locally advanced or metastatic urothelial carcinoma (mUC) who are not eligible for any platinum-containing chemotherapy. (The small label change is that mention of PD-L1 status and testing for this have been removed.)
The move is in accordance with recommendations by experts at a recent meeting of the Oncologic Drugs Advisory Committee. They voted 5-3 in favor of this accelerated approval staying. They also voted 10-1 in favor of another immunotherapy, atezolizumab (Tecentriq), for the same indication.
One of the arguments put forward to support these accelerated approvals staying in place is that there is an unmet need in this population of patients who are ineligible for platinum chemotherapy.
But this argument doesn’t hold water – the mere existence of one of these negates the “unmet need” argument for the other, wrote Bishal Gyawali, MD, PhD, from Queen’s University, Kingston, Ont., in a commentary on why the FDA’s accelerated approval pathway is broken.
“Even if there is a genuine ‘unmet need’ in a particular setting, these drugs did not meet the standard of improving survival. An unmet need doesn’t imply that the treatment void should be filled with a drug that provides nothing of value to patients,” Dr. Gyawali wrote.
“When we talk about an unmet need, we are speaking of drugs that provide a clinical benefit; any true unmet needs will continue to exist despite maintaining these approvals,” he argued.
After obtaining the accelerated approval for pembrolizumab for patients with bladder cancer who are not eligible for cisplatin-containing chemotherapy, the manufacturer (Merck) carried out a subsequent clinical trial but conducted it in patients who were eligible for platinum-containing chemotherapy (KEYNOTE-361). However, this trial did not meet its prespecified dual primary endpoints of overall survival or progression-free survival in comparison with standard of care chemotherapy, the company noted in a press release.
“We are working with urgency to advance studies to help more patients living with bladder and other types of cancer,” commented Scot Ebbinghaus, MD, vice president of clinical research, Merck Research Laboratories. The company said it has “an extensive clinical development in bladder cancer” and is exploring pembrolizumab use in many settings.
In addition to the new full approval for the first-line indication for patients who are ineligible for platinum chemotherapy, pembrolizumab has two other approved indications in this therapeutic area: the treatment of patients with locally advanced urothelial carcinoma or mUC who experience disease progression during or following platinum-containing chemotherapy or within 12 months of neoadjuvant or adjuvant treatment with platinum-containing chemotherapy; and the treatment of patients with bacillus Calmette-Guérin–unresponsive, high-risk, non–muscle-invasive bladder cancer with carcinoma in situ, with or without papillary tumors, who are ineligible for or have elected not to undergo cystectomy.
A version of this article first appeared on Medscape.com.
But one such accelerated approval has now been converted to a full approval, with a small label change, by the Food and Drug Administration.
The new full approval is for pembrolizumab (Keytruda) for first-line use for patients with locally advanced or metastatic urothelial carcinoma (mUC) who are not eligible for any platinum-containing chemotherapy. (The small label change is that mention of PD-L1 status and testing for this have been removed.)
The move is in accordance with recommendations by experts at a recent meeting of the Oncologic Drugs Advisory Committee. They voted 5-3 in favor of this accelerated approval staying. They also voted 10-1 in favor of another immunotherapy, atezolizumab (Tecentriq), for the same indication.
One of the arguments put forward to support these accelerated approvals staying in place is that there is an unmet need in this population of patients who are ineligible for platinum chemotherapy.
But this argument doesn’t hold water – the mere existence of one of these negates the “unmet need” argument for the other, wrote Bishal Gyawali, MD, PhD, from Queen’s University, Kingston, Ont., in a commentary on why the FDA’s accelerated approval pathway is broken.
“Even if there is a genuine ‘unmet need’ in a particular setting, these drugs did not meet the standard of improving survival. An unmet need doesn’t imply that the treatment void should be filled with a drug that provides nothing of value to patients,” Dr. Gyawali wrote.
“When we talk about an unmet need, we are speaking of drugs that provide a clinical benefit; any true unmet needs will continue to exist despite maintaining these approvals,” he argued.
After obtaining the accelerated approval for pembrolizumab for patients with bladder cancer who are not eligible for cisplatin-containing chemotherapy, the manufacturer (Merck) carried out a subsequent clinical trial but conducted it in patients who were eligible for platinum-containing chemotherapy (KEYNOTE-361). However, this trial did not meet its prespecified dual primary endpoints of overall survival or progression-free survival in comparison with standard of care chemotherapy, the company noted in a press release.
“We are working with urgency to advance studies to help more patients living with bladder and other types of cancer,” commented Scot Ebbinghaus, MD, vice president of clinical research, Merck Research Laboratories. The company said it has “an extensive clinical development in bladder cancer” and is exploring pembrolizumab use in many settings.
In addition to the new full approval for the first-line indication for patients who are ineligible for platinum chemotherapy, pembrolizumab has two other approved indications in this therapeutic area: the treatment of patients with locally advanced urothelial carcinoma or mUC who experience disease progression during or following platinum-containing chemotherapy or within 12 months of neoadjuvant or adjuvant treatment with platinum-containing chemotherapy; and the treatment of patients with bacillus Calmette-Guérin–unresponsive, high-risk, non–muscle-invasive bladder cancer with carcinoma in situ, with or without papillary tumors, who are ineligible for or have elected not to undergo cystectomy.
A version of this article first appeared on Medscape.com.
Stop using Neutrogena and Aveeno spray sunscreen, J&J warns
Benzene is not an ingredient of sunscreen, and should not be present in these products. The levels detected were low and would not be expected to have an adverse effect on health, but the company says it is recalling the products anyway “out of an abundance of caution.”
The sunscreen products that have been recalled are:
- NEUTROGENA® Beach Defense® aerosol sunscreen.
- NEUTROGENA® Cool Dry Sport aerosol sunscreen.
- NEUTROGENA® Invisible Daily™ defense aerosol sunscreen.
- NEUTROGENA® Ultra Sheer® aerosol sunscreen.
- AVEENO® Protect + Refresh aerosol sunscreen.
These products were distributed nationwide through a variety of retail stores. Consumers should stop using these products and throw them away, the company said.
At the same time, it emphasized the importance of using alternative sunscreen products to protect the skin from excessive sun exposure, which can lead to skin cancer including melanoma.
Johnson & Johnson has launched an investigation into how benzene got into these products.
One of the company’s other spray sunscreen products, Neutrogena Wet Skin, was not included in the recall.
Recently, benzene was found in 78 widely-used sunscreen products in tests conducted by the online pharmacy and laboratory Valisure. Most of the products were aerosol sprays, and the company called on the Food and Drug Administration to recall them all.
That petition suggested that the finding of benzene was the result of contamination somewhere in the manufacturing process.
“This isn’t a sunscreen issue, it’s a manufacturing issue,” said Adam Friedman, MD, professor and chief of dermatology at George Washington University. “We don’t want those things to be blurred.”
There is a risk that people take away the wrong message from these findings.
“People already have ambivalence about sunscreen, and this is just going to make that worse,” Dr. Friedman said in an interview.
He pointed out that benzene is present in car exhaust, second-hand smoke, and elsewhere. Inhalation exposure has been the primary focus of toxicology investigations, as has exposure from things such as contaminated drinking water – not via topical application. “We don’t know how effectively [benzene] gets through the skin, if it gets absorbed systemically, and how that then behaves downstream,” he noted.
On the other hand, ultraviolet radiation is a well-established carcinogen. Avoiding an effective preventive measure such as sunscreen could prove more harmful than exposure to trace amounts of benzene, he said.
A version of this article first appeared on WebMD.com.
Benzene is not an ingredient of sunscreen, and should not be present in these products. The levels detected were low and would not be expected to have an adverse effect on health, but the company says it is recalling the products anyway “out of an abundance of caution.”
The sunscreen products that have been recalled are:
- NEUTROGENA® Beach Defense® aerosol sunscreen.
- NEUTROGENA® Cool Dry Sport aerosol sunscreen.
- NEUTROGENA® Invisible Daily™ defense aerosol sunscreen.
- NEUTROGENA® Ultra Sheer® aerosol sunscreen.
- AVEENO® Protect + Refresh aerosol sunscreen.
These products were distributed nationwide through a variety of retail stores. Consumers should stop using these products and throw them away, the company said.
At the same time, it emphasized the importance of using alternative sunscreen products to protect the skin from excessive sun exposure, which can lead to skin cancer including melanoma.
Johnson & Johnson has launched an investigation into how benzene got into these products.
One of the company’s other spray sunscreen products, Neutrogena Wet Skin, was not included in the recall.
Recently, benzene was found in 78 widely-used sunscreen products in tests conducted by the online pharmacy and laboratory Valisure. Most of the products were aerosol sprays, and the company called on the Food and Drug Administration to recall them all.
That petition suggested that the finding of benzene was the result of contamination somewhere in the manufacturing process.
“This isn’t a sunscreen issue, it’s a manufacturing issue,” said Adam Friedman, MD, professor and chief of dermatology at George Washington University. “We don’t want those things to be blurred.”
There is a risk that people take away the wrong message from these findings.
“People already have ambivalence about sunscreen, and this is just going to make that worse,” Dr. Friedman said in an interview.
He pointed out that benzene is present in car exhaust, second-hand smoke, and elsewhere. Inhalation exposure has been the primary focus of toxicology investigations, as has exposure from things such as contaminated drinking water – not via topical application. “We don’t know how effectively [benzene] gets through the skin, if it gets absorbed systemically, and how that then behaves downstream,” he noted.
On the other hand, ultraviolet radiation is a well-established carcinogen. Avoiding an effective preventive measure such as sunscreen could prove more harmful than exposure to trace amounts of benzene, he said.
A version of this article first appeared on WebMD.com.
Benzene is not an ingredient of sunscreen, and should not be present in these products. The levels detected were low and would not be expected to have an adverse effect on health, but the company says it is recalling the products anyway “out of an abundance of caution.”
The sunscreen products that have been recalled are:
- NEUTROGENA® Beach Defense® aerosol sunscreen.
- NEUTROGENA® Cool Dry Sport aerosol sunscreen.
- NEUTROGENA® Invisible Daily™ defense aerosol sunscreen.
- NEUTROGENA® Ultra Sheer® aerosol sunscreen.
- AVEENO® Protect + Refresh aerosol sunscreen.
These products were distributed nationwide through a variety of retail stores. Consumers should stop using these products and throw them away, the company said.
At the same time, it emphasized the importance of using alternative sunscreen products to protect the skin from excessive sun exposure, which can lead to skin cancer including melanoma.
Johnson & Johnson has launched an investigation into how benzene got into these products.
One of the company’s other spray sunscreen products, Neutrogena Wet Skin, was not included in the recall.
Recently, benzene was found in 78 widely-used sunscreen products in tests conducted by the online pharmacy and laboratory Valisure. Most of the products were aerosol sprays, and the company called on the Food and Drug Administration to recall them all.
That petition suggested that the finding of benzene was the result of contamination somewhere in the manufacturing process.
“This isn’t a sunscreen issue, it’s a manufacturing issue,” said Adam Friedman, MD, professor and chief of dermatology at George Washington University. “We don’t want those things to be blurred.”
There is a risk that people take away the wrong message from these findings.
“People already have ambivalence about sunscreen, and this is just going to make that worse,” Dr. Friedman said in an interview.
He pointed out that benzene is present in car exhaust, second-hand smoke, and elsewhere. Inhalation exposure has been the primary focus of toxicology investigations, as has exposure from things such as contaminated drinking water – not via topical application. “We don’t know how effectively [benzene] gets through the skin, if it gets absorbed systemically, and how that then behaves downstream,” he noted.
On the other hand, ultraviolet radiation is a well-established carcinogen. Avoiding an effective preventive measure such as sunscreen could prove more harmful than exposure to trace amounts of benzene, he said.
A version of this article first appeared on WebMD.com.
First drug for lung cancer with KRAS mutation gains FDA approval
The first drug to target KRAS mutations in non–small cell lung cancer (NSCLC) has been approved by the Food and Drug Administration.
KRAS mutations are the most common mutations to occur in NSCLC tumors, accounting for about 25% of them, but for a long time they appeared to be resistant to drug therapy.
The new drug, sotorasib (Lumakras), specifically targets the KRAS G12C mutation, which accounts for about 13% of NSCLC mutations.
It is considered to be something of a breakthrough in cancer research. When clinical data on the new drug (from 126 patients) were presented last year at the World Conference on Lung Cancer, lung cancer experts greeted the results enthusiastically, as reported by Medscape Medical News at the time.
“This is a historic milestone in lung cancer therapy. After four decades of scientific efforts in targeting KRAS, sotorasib has potential to be the first targeted treatment option for this patient population with a high unmet need,” Bob T. Li, MD, PhD, of Memorial Sloan Kettering Cancer Center in New York, said at the time.
Now, in a press release from the manufacturer, Amgen, he said: “Sotorasib represents a major advancement in oncology and changes the treatment paradigm for patients with KRAS G12C-mutated non–small cell lung cancer.
“Patients with non–small cell lung cancer who have progressed beyond first-line treatment face a poor prognosis and have limited treatment options available to them. Sotorasib delivers a new option for these patients, and it is the first KRAS-targeted therapy to be approved after nearly four decades of research,” he added.
Details of clinical data
This is an accelerated approval based on response rate data.
The FDA notes that the clinical data come from a study of 124 patients with locally advanced or metastatic KRAS G12C-mutated NSCLC with disease progression after receiving an immune checkpoint inhibitor and/or platinum-based chemotherapy.
The major outcome measured was overall response rate (ORR), which was 36%. Of the patients who responded, 58% had a duration of response of 6 months or longer.
Sotorasib was approved at a dose of 960 mg, and this dose was based on available clinical data as well as pharmacokinetic and pharmacodynamic modeling, the FDA noted. As part of the evaluation for this accelerated approval, the agency is requiring a postmarketing trial to investigate whether a lower dose will have a similar clinical effect.
The most common side effects include diarrhea, musculoskeletal pain, nausea, fatigue, liver damage, and cough. Sotorasib should not be used if patients develop symptoms of interstitial lung disease, and should be permanently discontinued if interstitial lung disease is confirmed.
Patients on sotorasib should have liver function tests prior to starting and while taking the drug; if liver damage develops, the drug should be stopped or the dose reduced. Patients should avoid taking acid-reducing agents, drugs that induce or are substrates for certain enzymes in the liver, and drugs that are substrates of P-glycoprotein (P-gp).
Companion diagnostic tests also approved
Along with the new drug, the FDA approved two companion diagnostic tests – the QIAGEN therascreen KRAS RGQ PCR kit (approval granted to QIAGEN GmbH) for analyzing tumor tissue and the Guardant360 CDx (approval granted to Guardant Health) for analyzing plasma specimens to determine if the KRAS G12C mutation is present. The agency notes that if the plasma test comes back negative, the patient’s tumor tissue should be tested.
A version of this article first appeared on Medscape.com.
The first drug to target KRAS mutations in non–small cell lung cancer (NSCLC) has been approved by the Food and Drug Administration.
KRAS mutations are the most common mutations to occur in NSCLC tumors, accounting for about 25% of them, but for a long time they appeared to be resistant to drug therapy.
The new drug, sotorasib (Lumakras), specifically targets the KRAS G12C mutation, which accounts for about 13% of NSCLC mutations.
It is considered to be something of a breakthrough in cancer research. When clinical data on the new drug (from 126 patients) were presented last year at the World Conference on Lung Cancer, lung cancer experts greeted the results enthusiastically, as reported by Medscape Medical News at the time.
“This is a historic milestone in lung cancer therapy. After four decades of scientific efforts in targeting KRAS, sotorasib has potential to be the first targeted treatment option for this patient population with a high unmet need,” Bob T. Li, MD, PhD, of Memorial Sloan Kettering Cancer Center in New York, said at the time.
Now, in a press release from the manufacturer, Amgen, he said: “Sotorasib represents a major advancement in oncology and changes the treatment paradigm for patients with KRAS G12C-mutated non–small cell lung cancer.
“Patients with non–small cell lung cancer who have progressed beyond first-line treatment face a poor prognosis and have limited treatment options available to them. Sotorasib delivers a new option for these patients, and it is the first KRAS-targeted therapy to be approved after nearly four decades of research,” he added.
Details of clinical data
This is an accelerated approval based on response rate data.
The FDA notes that the clinical data come from a study of 124 patients with locally advanced or metastatic KRAS G12C-mutated NSCLC with disease progression after receiving an immune checkpoint inhibitor and/or platinum-based chemotherapy.
The major outcome measured was overall response rate (ORR), which was 36%. Of the patients who responded, 58% had a duration of response of 6 months or longer.
Sotorasib was approved at a dose of 960 mg, and this dose was based on available clinical data as well as pharmacokinetic and pharmacodynamic modeling, the FDA noted. As part of the evaluation for this accelerated approval, the agency is requiring a postmarketing trial to investigate whether a lower dose will have a similar clinical effect.
The most common side effects include diarrhea, musculoskeletal pain, nausea, fatigue, liver damage, and cough. Sotorasib should not be used if patients develop symptoms of interstitial lung disease, and should be permanently discontinued if interstitial lung disease is confirmed.
Patients on sotorasib should have liver function tests prior to starting and while taking the drug; if liver damage develops, the drug should be stopped or the dose reduced. Patients should avoid taking acid-reducing agents, drugs that induce or are substrates for certain enzymes in the liver, and drugs that are substrates of P-glycoprotein (P-gp).
Companion diagnostic tests also approved
Along with the new drug, the FDA approved two companion diagnostic tests – the QIAGEN therascreen KRAS RGQ PCR kit (approval granted to QIAGEN GmbH) for analyzing tumor tissue and the Guardant360 CDx (approval granted to Guardant Health) for analyzing plasma specimens to determine if the KRAS G12C mutation is present. The agency notes that if the plasma test comes back negative, the patient’s tumor tissue should be tested.
A version of this article first appeared on Medscape.com.
The first drug to target KRAS mutations in non–small cell lung cancer (NSCLC) has been approved by the Food and Drug Administration.
KRAS mutations are the most common mutations to occur in NSCLC tumors, accounting for about 25% of them, but for a long time they appeared to be resistant to drug therapy.
The new drug, sotorasib (Lumakras), specifically targets the KRAS G12C mutation, which accounts for about 13% of NSCLC mutations.
It is considered to be something of a breakthrough in cancer research. When clinical data on the new drug (from 126 patients) were presented last year at the World Conference on Lung Cancer, lung cancer experts greeted the results enthusiastically, as reported by Medscape Medical News at the time.
“This is a historic milestone in lung cancer therapy. After four decades of scientific efforts in targeting KRAS, sotorasib has potential to be the first targeted treatment option for this patient population with a high unmet need,” Bob T. Li, MD, PhD, of Memorial Sloan Kettering Cancer Center in New York, said at the time.
Now, in a press release from the manufacturer, Amgen, he said: “Sotorasib represents a major advancement in oncology and changes the treatment paradigm for patients with KRAS G12C-mutated non–small cell lung cancer.
“Patients with non–small cell lung cancer who have progressed beyond first-line treatment face a poor prognosis and have limited treatment options available to them. Sotorasib delivers a new option for these patients, and it is the first KRAS-targeted therapy to be approved after nearly four decades of research,” he added.
Details of clinical data
This is an accelerated approval based on response rate data.
The FDA notes that the clinical data come from a study of 124 patients with locally advanced or metastatic KRAS G12C-mutated NSCLC with disease progression after receiving an immune checkpoint inhibitor and/or platinum-based chemotherapy.
The major outcome measured was overall response rate (ORR), which was 36%. Of the patients who responded, 58% had a duration of response of 6 months or longer.
Sotorasib was approved at a dose of 960 mg, and this dose was based on available clinical data as well as pharmacokinetic and pharmacodynamic modeling, the FDA noted. As part of the evaluation for this accelerated approval, the agency is requiring a postmarketing trial to investigate whether a lower dose will have a similar clinical effect.
The most common side effects include diarrhea, musculoskeletal pain, nausea, fatigue, liver damage, and cough. Sotorasib should not be used if patients develop symptoms of interstitial lung disease, and should be permanently discontinued if interstitial lung disease is confirmed.
Patients on sotorasib should have liver function tests prior to starting and while taking the drug; if liver damage develops, the drug should be stopped or the dose reduced. Patients should avoid taking acid-reducing agents, drugs that induce or are substrates for certain enzymes in the liver, and drugs that are substrates of P-glycoprotein (P-gp).
Companion diagnostic tests also approved
Along with the new drug, the FDA approved two companion diagnostic tests – the QIAGEN therascreen KRAS RGQ PCR kit (approval granted to QIAGEN GmbH) for analyzing tumor tissue and the Guardant360 CDx (approval granted to Guardant Health) for analyzing plasma specimens to determine if the KRAS G12C mutation is present. The agency notes that if the plasma test comes back negative, the patient’s tumor tissue should be tested.
A version of this article first appeared on Medscape.com.
FDA approves loncastuximab for diffuse large B-cell lymphomas
The Food and Drug Administration granted an accelerated approval April 24, 2021, for a new drug for use in patients with relapsed/refractory diffuse large B-cell lymphomas (DLBCL) who have tried at least two prior systemic therapies.
The new product, loncastuximab tesirine-lpyl (Zynlonta, ADC Therapeutics), is the first and only CD19-targeted antibody-drug conjugate approved for this disease.
DLBCL is the most common type of non-Hodgkin lymphoma in the United States, but the indication also includes DLBCL not otherwise specified, DLBCL arising from low grade lymphoma, and high-grade B-cell lymphoma.
“There is a significant unmet need for treatment options for patients with [relapsed or refractory] DLBCL, including those who have been heavily pretreated and have difficult-to-treat disease,” Paolo F. Caimi, MD, University Hospitals Cleveland Medical Center and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, said in a company press release.
The company also cited data from previous clinical trials showing that more than 40% of first-line DLBCL treatments fail, and that these patients have a poor prognosis, worsening with each line of therapy that is tried.
Accelerated approval based on ORR
The accelerated approval was based on overall response rate data from the single-arm LOTIS-2 trial. All patients received the new drug, administered as a 30-minute infusion once every 3 weeks for 1 year.
The trial was conducted in 145 patients with relapsed/refractory DLBCL who had already tried at least two lines of systemic therapy. Dr. Caimi noted that this included patients who had been heavily pretreated, as the population included patients who previously received stem cell transplant or chimeric antigen receptor T-cell therapy.
The ORR was 48.3% (70/145 patients), which included a complete response rate of 24.1% (35/145 patients) and a partial response rate of 24.1% (35/145 patients).
Patients had a median time to response of 1.3 months and the median duration of response for the 70 responders was 10.3 months.
“Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial,” the company noted.
A phase 3 confirmatory is underway: the LOTIS 5 trial (NCT04384484) compares the combination of loncastuximab tesirine and rituximab versus chemoimmunotherapy in patients with relapsed/refractory DLBCL.
The company also noted that in a pooled safety population the most common adverse reactions (≥20%) were thrombocytopenia, an increase in levels of the liver enzyme gamma-glutamyltransferase, neutropenia, anemia, hyperglycemia, transaminase elevation, fatigue, hypoalbuminemia, rash, edema, nausea, and musculoskeletal pain.
In the LOTIS-2 trial, the most common (≥10%) grade 3 or higher treatment-emergent adverse events were neutropenia (26.2%), thrombocytopenia (17.9%), GGT increase (17.2%) and anemia (10.3%).
Permanent treatment discontinuation as the result of an adverse reaction occurred in 19% of patients, and these included a GGT increase, edema, and effusion.
Dose reductions because of an adverse reaction occurred in 8% of patients, and most were the result of a GGT increase. Dosage interruptions because of an adverse reaction occurred in 49% of patients, and these included a GGT increase, neutropenia, thrombocytopenia, and edema.
Warnings on effusions, infections, and skin reactions
The product carries a warning that serious effusion and edema has been reported. Grade 3 edema occurred in 3% (primarily peripheral edema or ascites), grade 3 pleural effusion occurred in 3%, and grade 3 or 4 pericardial effusion occurred in 1%.
Prescribers are recommended to monitor patients for new or worsening edema or effusions, and to consider diagnostic imaging in patients who develop symptoms of pleural effusion or pericardial effusion, such as new or worsened dyspnea, chest pain, and/or ascites such as swelling in the abdomen and bloating.
The product also carries a warning about fatal and serious infections, including opportunistic infections, and serious cutaneous reactions, including photosensitivity reaction, rash (including exfoliative and maculopapular), and erythema.
A version of this article first appeared on Medscape.com.
The Food and Drug Administration granted an accelerated approval April 24, 2021, for a new drug for use in patients with relapsed/refractory diffuse large B-cell lymphomas (DLBCL) who have tried at least two prior systemic therapies.
The new product, loncastuximab tesirine-lpyl (Zynlonta, ADC Therapeutics), is the first and only CD19-targeted antibody-drug conjugate approved for this disease.
DLBCL is the most common type of non-Hodgkin lymphoma in the United States, but the indication also includes DLBCL not otherwise specified, DLBCL arising from low grade lymphoma, and high-grade B-cell lymphoma.
“There is a significant unmet need for treatment options for patients with [relapsed or refractory] DLBCL, including those who have been heavily pretreated and have difficult-to-treat disease,” Paolo F. Caimi, MD, University Hospitals Cleveland Medical Center and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, said in a company press release.
The company also cited data from previous clinical trials showing that more than 40% of first-line DLBCL treatments fail, and that these patients have a poor prognosis, worsening with each line of therapy that is tried.
Accelerated approval based on ORR
The accelerated approval was based on overall response rate data from the single-arm LOTIS-2 trial. All patients received the new drug, administered as a 30-minute infusion once every 3 weeks for 1 year.
The trial was conducted in 145 patients with relapsed/refractory DLBCL who had already tried at least two lines of systemic therapy. Dr. Caimi noted that this included patients who had been heavily pretreated, as the population included patients who previously received stem cell transplant or chimeric antigen receptor T-cell therapy.
The ORR was 48.3% (70/145 patients), which included a complete response rate of 24.1% (35/145 patients) and a partial response rate of 24.1% (35/145 patients).
Patients had a median time to response of 1.3 months and the median duration of response for the 70 responders was 10.3 months.
“Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial,” the company noted.
A phase 3 confirmatory is underway: the LOTIS 5 trial (NCT04384484) compares the combination of loncastuximab tesirine and rituximab versus chemoimmunotherapy in patients with relapsed/refractory DLBCL.
The company also noted that in a pooled safety population the most common adverse reactions (≥20%) were thrombocytopenia, an increase in levels of the liver enzyme gamma-glutamyltransferase, neutropenia, anemia, hyperglycemia, transaminase elevation, fatigue, hypoalbuminemia, rash, edema, nausea, and musculoskeletal pain.
In the LOTIS-2 trial, the most common (≥10%) grade 3 or higher treatment-emergent adverse events were neutropenia (26.2%), thrombocytopenia (17.9%), GGT increase (17.2%) and anemia (10.3%).
Permanent treatment discontinuation as the result of an adverse reaction occurred in 19% of patients, and these included a GGT increase, edema, and effusion.
Dose reductions because of an adverse reaction occurred in 8% of patients, and most were the result of a GGT increase. Dosage interruptions because of an adverse reaction occurred in 49% of patients, and these included a GGT increase, neutropenia, thrombocytopenia, and edema.
Warnings on effusions, infections, and skin reactions
The product carries a warning that serious effusion and edema has been reported. Grade 3 edema occurred in 3% (primarily peripheral edema or ascites), grade 3 pleural effusion occurred in 3%, and grade 3 or 4 pericardial effusion occurred in 1%.
Prescribers are recommended to monitor patients for new or worsening edema or effusions, and to consider diagnostic imaging in patients who develop symptoms of pleural effusion or pericardial effusion, such as new or worsened dyspnea, chest pain, and/or ascites such as swelling in the abdomen and bloating.
The product also carries a warning about fatal and serious infections, including opportunistic infections, and serious cutaneous reactions, including photosensitivity reaction, rash (including exfoliative and maculopapular), and erythema.
A version of this article first appeared on Medscape.com.
The Food and Drug Administration granted an accelerated approval April 24, 2021, for a new drug for use in patients with relapsed/refractory diffuse large B-cell lymphomas (DLBCL) who have tried at least two prior systemic therapies.
The new product, loncastuximab tesirine-lpyl (Zynlonta, ADC Therapeutics), is the first and only CD19-targeted antibody-drug conjugate approved for this disease.
DLBCL is the most common type of non-Hodgkin lymphoma in the United States, but the indication also includes DLBCL not otherwise specified, DLBCL arising from low grade lymphoma, and high-grade B-cell lymphoma.
“There is a significant unmet need for treatment options for patients with [relapsed or refractory] DLBCL, including those who have been heavily pretreated and have difficult-to-treat disease,” Paolo F. Caimi, MD, University Hospitals Cleveland Medical Center and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, said in a company press release.
The company also cited data from previous clinical trials showing that more than 40% of first-line DLBCL treatments fail, and that these patients have a poor prognosis, worsening with each line of therapy that is tried.
Accelerated approval based on ORR
The accelerated approval was based on overall response rate data from the single-arm LOTIS-2 trial. All patients received the new drug, administered as a 30-minute infusion once every 3 weeks for 1 year.
The trial was conducted in 145 patients with relapsed/refractory DLBCL who had already tried at least two lines of systemic therapy. Dr. Caimi noted that this included patients who had been heavily pretreated, as the population included patients who previously received stem cell transplant or chimeric antigen receptor T-cell therapy.
The ORR was 48.3% (70/145 patients), which included a complete response rate of 24.1% (35/145 patients) and a partial response rate of 24.1% (35/145 patients).
Patients had a median time to response of 1.3 months and the median duration of response for the 70 responders was 10.3 months.
“Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial,” the company noted.
A phase 3 confirmatory is underway: the LOTIS 5 trial (NCT04384484) compares the combination of loncastuximab tesirine and rituximab versus chemoimmunotherapy in patients with relapsed/refractory DLBCL.
The company also noted that in a pooled safety population the most common adverse reactions (≥20%) were thrombocytopenia, an increase in levels of the liver enzyme gamma-glutamyltransferase, neutropenia, anemia, hyperglycemia, transaminase elevation, fatigue, hypoalbuminemia, rash, edema, nausea, and musculoskeletal pain.
In the LOTIS-2 trial, the most common (≥10%) grade 3 or higher treatment-emergent adverse events were neutropenia (26.2%), thrombocytopenia (17.9%), GGT increase (17.2%) and anemia (10.3%).
Permanent treatment discontinuation as the result of an adverse reaction occurred in 19% of patients, and these included a GGT increase, edema, and effusion.
Dose reductions because of an adverse reaction occurred in 8% of patients, and most were the result of a GGT increase. Dosage interruptions because of an adverse reaction occurred in 49% of patients, and these included a GGT increase, neutropenia, thrombocytopenia, and edema.
Warnings on effusions, infections, and skin reactions
The product carries a warning that serious effusion and edema has been reported. Grade 3 edema occurred in 3% (primarily peripheral edema or ascites), grade 3 pleural effusion occurred in 3%, and grade 3 or 4 pericardial effusion occurred in 1%.
Prescribers are recommended to monitor patients for new or worsening edema or effusions, and to consider diagnostic imaging in patients who develop symptoms of pleural effusion or pericardial effusion, such as new or worsened dyspnea, chest pain, and/or ascites such as swelling in the abdomen and bloating.
The product also carries a warning about fatal and serious infections, including opportunistic infections, and serious cutaneous reactions, including photosensitivity reaction, rash (including exfoliative and maculopapular), and erythema.
A version of this article first appeared on Medscape.com.
First CAR T-cell therapy for multiple myeloma: Abecma
Chimeric antigen receptor (CAR) T-cell therapy, described as a “living drug,” is now available for patients with relapsed/refractory multiple myeloma who have been treated with four or more prior lines of therapy.
The Food and Drug Administration said these patients represent an “unmet medical need” when it granted approval for the new product – idecabtagene vicleucel (ide-cel; Abecma), developed by bluebird bio and Bristol-Myers Squibb.
Ide-cel is the first CAR T-cell therapy to gain approval for use in multiple myeloma. It is also the first CAR T-cell therapy to target B-cell maturation antigen.
Previously approved CAR T-cell products target CD19 and have been approved for use in certain types of leukemia and lymphoma.
All the CAR T-cell therapies are customized treatments that are created specifically for each individual patient from their own blood. The patient’s own T cells are removed from the blood, are genetically modified and expanded, and are then infused back into the patient. These modified T cells then seek out and destroy blood cancer cells, and they continue to do so long term.
In some patients, this has led to eradication of disease that had previously progressed with every other treatment that had been tried – results that have been described as “absolutely remarkable” and “one-shot therapy that looks to be curative.”
However, this cell therapy comes with serious adverse effects, including neurologic toxicity and cytokine release syndrome (CRS), which can be life threatening. For this reason, all these products have a risk evaluation and mitigation strategy, and the use of CAR T-cell therapies is limited to designated centers.
In addition, these CAR T-cells products are phenomenally expensive; hospitals have reported heavy financial losses with their use, and patients have turned to crowdfunding to pay for these therapies.
‘Phenomenal’ results in MM
The FDA noted that approval of ide-cel for multiple myeloma is based on data from a multicenter study that involved 127 patients with relapsed/refractory disease who had received at least three prior lines of treatment.
The results from this trial were published Feb. 25 in the New England Journal of Medicine.
An expert not involved in the trial described the results as “phenomenal.”
Krina Patel, MD, an associate professor in the department of lymphoma/myeloma at the University of Texas MD Anderson Cancer Center, Houston, said that “the response rate of 73% in a patient population with a median of six lines of therapy, and with one-third of those patients achieving a deep response of complete response or better, is phenomenal.
“We are very excited as a myeloma community for this study of idecabtagene vicleucel for relapsed/refractory patients,” Dr. Patel told this news organization at the time.
The lead investigator of the study, Nikhil Munshi, MD, of Dana-Farber Cancer Institute, Boston, commented:
Both experts highlighted the poor prognosis for patients with relapsed/refractory disease. Recent decades have seen a flurry of new agents for myeloma, and there are now three main classes of agents: immunomodulatory agents, proteasome inhibitors, and anti-CD38 antibodies.
Nevertheless, in some patients, the disease continues to progress. For patients for whom treatments with all three classes of drugs have failed, the median progression-free survival is 3-4 months, and the median overall survival is 9 months.
In contrast, the results reported in the NEJM article showed that overall median progression-free survival was 8.8 months, but it was more than double that (20.2 months) for patients who achieved a complete or stringent complete response.
Estimated median overall survival was 19.4 months, and the overall survival was 78% at 12 months. The authors note that overall survival data are not yet mature.
The patients who were enrolled in the CAR T-cell trial had undergone many previous treatments. They had undergone a median of six prior drug therapies (range, 3-16), and most of the patients (120, 94%) had also undergone autologous hematopoietic stem cell transplant.
In addition, the majority of patients (84%) had disease that was triple refractory (to an immunomodulatory agent, a proteasome inhibitor, and an anti-CD38 antibody), 60% had disease that was penta-exposed (to bortezomib, carfilzomib, lenalidomide, pomalidomide, and daratumumab), and 26% had disease that was penta-refractory.
In the NEJM article, the authors report that about a third of patients had a complete response to CAR T-cell therapy.
At a median follow-up of 13.3 months, 94 of 128 patients (73%) showed a response to therapy (P < .001); 42 (33%) showed a complete or stringent complete response; and 67 patients (52%) showed a “very good partial response or better,” they write.
In the FDA announcement of the product approval, the figures for complete response were slightly lower. “Of those studied, 28% of patients showed complete response – or disappearance of all signs of multiple myeloma – to Abecma, and 65% of this group remained in complete response to the treatment for at least 12 months,” the agency noted.
The FDA also noted that treatment with Abecma can cause severe side effects. The label carries a boxed warning regarding CRS, hemophagocytic lymphohistiocytosis/macrophage activation syndrome, neurologic toxicity, and prolonged cytopenia, all of which can be fatal or life threatening.
The most common side effects of Abecma are CRS, infections, fatigue, musculoskeletal pain, and a weakened immune system. Side effects from treatment usually appear within the first 1-2 weeks after treatment, but some side effects may occur later.
The agency also noted that, to further evaluate the long-term safety of the drug, it is requiring the manufacturer to conduct a postmarketing observational study.
“The FDA remains committed to advancing novel treatment options for areas of unmet patient need,” said Peter Marks, MD, PhD, director of the FDA’s Center for Biologics Evaluation and Research.
“While there is no cure for multiple myeloma, the long-term outlook can vary based on the individual’s age and the stage of the condition at the time of diagnosis. Today’s approval provides a new treatment option for patients who have this uncommon type of cancer.”
A version of this article first appeared on Medscape.com.
Chimeric antigen receptor (CAR) T-cell therapy, described as a “living drug,” is now available for patients with relapsed/refractory multiple myeloma who have been treated with four or more prior lines of therapy.
The Food and Drug Administration said these patients represent an “unmet medical need” when it granted approval for the new product – idecabtagene vicleucel (ide-cel; Abecma), developed by bluebird bio and Bristol-Myers Squibb.
Ide-cel is the first CAR T-cell therapy to gain approval for use in multiple myeloma. It is also the first CAR T-cell therapy to target B-cell maturation antigen.
Previously approved CAR T-cell products target CD19 and have been approved for use in certain types of leukemia and lymphoma.
All the CAR T-cell therapies are customized treatments that are created specifically for each individual patient from their own blood. The patient’s own T cells are removed from the blood, are genetically modified and expanded, and are then infused back into the patient. These modified T cells then seek out and destroy blood cancer cells, and they continue to do so long term.
In some patients, this has led to eradication of disease that had previously progressed with every other treatment that had been tried – results that have been described as “absolutely remarkable” and “one-shot therapy that looks to be curative.”
However, this cell therapy comes with serious adverse effects, including neurologic toxicity and cytokine release syndrome (CRS), which can be life threatening. For this reason, all these products have a risk evaluation and mitigation strategy, and the use of CAR T-cell therapies is limited to designated centers.
In addition, these CAR T-cells products are phenomenally expensive; hospitals have reported heavy financial losses with their use, and patients have turned to crowdfunding to pay for these therapies.
‘Phenomenal’ results in MM
The FDA noted that approval of ide-cel for multiple myeloma is based on data from a multicenter study that involved 127 patients with relapsed/refractory disease who had received at least three prior lines of treatment.
The results from this trial were published Feb. 25 in the New England Journal of Medicine.
An expert not involved in the trial described the results as “phenomenal.”
Krina Patel, MD, an associate professor in the department of lymphoma/myeloma at the University of Texas MD Anderson Cancer Center, Houston, said that “the response rate of 73% in a patient population with a median of six lines of therapy, and with one-third of those patients achieving a deep response of complete response or better, is phenomenal.
“We are very excited as a myeloma community for this study of idecabtagene vicleucel for relapsed/refractory patients,” Dr. Patel told this news organization at the time.
The lead investigator of the study, Nikhil Munshi, MD, of Dana-Farber Cancer Institute, Boston, commented:
Both experts highlighted the poor prognosis for patients with relapsed/refractory disease. Recent decades have seen a flurry of new agents for myeloma, and there are now three main classes of agents: immunomodulatory agents, proteasome inhibitors, and anti-CD38 antibodies.
Nevertheless, in some patients, the disease continues to progress. For patients for whom treatments with all three classes of drugs have failed, the median progression-free survival is 3-4 months, and the median overall survival is 9 months.
In contrast, the results reported in the NEJM article showed that overall median progression-free survival was 8.8 months, but it was more than double that (20.2 months) for patients who achieved a complete or stringent complete response.
Estimated median overall survival was 19.4 months, and the overall survival was 78% at 12 months. The authors note that overall survival data are not yet mature.
The patients who were enrolled in the CAR T-cell trial had undergone many previous treatments. They had undergone a median of six prior drug therapies (range, 3-16), and most of the patients (120, 94%) had also undergone autologous hematopoietic stem cell transplant.
In addition, the majority of patients (84%) had disease that was triple refractory (to an immunomodulatory agent, a proteasome inhibitor, and an anti-CD38 antibody), 60% had disease that was penta-exposed (to bortezomib, carfilzomib, lenalidomide, pomalidomide, and daratumumab), and 26% had disease that was penta-refractory.
In the NEJM article, the authors report that about a third of patients had a complete response to CAR T-cell therapy.
At a median follow-up of 13.3 months, 94 of 128 patients (73%) showed a response to therapy (P < .001); 42 (33%) showed a complete or stringent complete response; and 67 patients (52%) showed a “very good partial response or better,” they write.
In the FDA announcement of the product approval, the figures for complete response were slightly lower. “Of those studied, 28% of patients showed complete response – or disappearance of all signs of multiple myeloma – to Abecma, and 65% of this group remained in complete response to the treatment for at least 12 months,” the agency noted.
The FDA also noted that treatment with Abecma can cause severe side effects. The label carries a boxed warning regarding CRS, hemophagocytic lymphohistiocytosis/macrophage activation syndrome, neurologic toxicity, and prolonged cytopenia, all of which can be fatal or life threatening.
The most common side effects of Abecma are CRS, infections, fatigue, musculoskeletal pain, and a weakened immune system. Side effects from treatment usually appear within the first 1-2 weeks after treatment, but some side effects may occur later.
The agency also noted that, to further evaluate the long-term safety of the drug, it is requiring the manufacturer to conduct a postmarketing observational study.
“The FDA remains committed to advancing novel treatment options for areas of unmet patient need,” said Peter Marks, MD, PhD, director of the FDA’s Center for Biologics Evaluation and Research.
“While there is no cure for multiple myeloma, the long-term outlook can vary based on the individual’s age and the stage of the condition at the time of diagnosis. Today’s approval provides a new treatment option for patients who have this uncommon type of cancer.”
A version of this article first appeared on Medscape.com.
Chimeric antigen receptor (CAR) T-cell therapy, described as a “living drug,” is now available for patients with relapsed/refractory multiple myeloma who have been treated with four or more prior lines of therapy.
The Food and Drug Administration said these patients represent an “unmet medical need” when it granted approval for the new product – idecabtagene vicleucel (ide-cel; Abecma), developed by bluebird bio and Bristol-Myers Squibb.
Ide-cel is the first CAR T-cell therapy to gain approval for use in multiple myeloma. It is also the first CAR T-cell therapy to target B-cell maturation antigen.
Previously approved CAR T-cell products target CD19 and have been approved for use in certain types of leukemia and lymphoma.
All the CAR T-cell therapies are customized treatments that are created specifically for each individual patient from their own blood. The patient’s own T cells are removed from the blood, are genetically modified and expanded, and are then infused back into the patient. These modified T cells then seek out and destroy blood cancer cells, and they continue to do so long term.
In some patients, this has led to eradication of disease that had previously progressed with every other treatment that had been tried – results that have been described as “absolutely remarkable” and “one-shot therapy that looks to be curative.”
However, this cell therapy comes with serious adverse effects, including neurologic toxicity and cytokine release syndrome (CRS), which can be life threatening. For this reason, all these products have a risk evaluation and mitigation strategy, and the use of CAR T-cell therapies is limited to designated centers.
In addition, these CAR T-cells products are phenomenally expensive; hospitals have reported heavy financial losses with their use, and patients have turned to crowdfunding to pay for these therapies.
‘Phenomenal’ results in MM
The FDA noted that approval of ide-cel for multiple myeloma is based on data from a multicenter study that involved 127 patients with relapsed/refractory disease who had received at least three prior lines of treatment.
The results from this trial were published Feb. 25 in the New England Journal of Medicine.
An expert not involved in the trial described the results as “phenomenal.”
Krina Patel, MD, an associate professor in the department of lymphoma/myeloma at the University of Texas MD Anderson Cancer Center, Houston, said that “the response rate of 73% in a patient population with a median of six lines of therapy, and with one-third of those patients achieving a deep response of complete response or better, is phenomenal.
“We are very excited as a myeloma community for this study of idecabtagene vicleucel for relapsed/refractory patients,” Dr. Patel told this news organization at the time.
The lead investigator of the study, Nikhil Munshi, MD, of Dana-Farber Cancer Institute, Boston, commented:
Both experts highlighted the poor prognosis for patients with relapsed/refractory disease. Recent decades have seen a flurry of new agents for myeloma, and there are now three main classes of agents: immunomodulatory agents, proteasome inhibitors, and anti-CD38 antibodies.
Nevertheless, in some patients, the disease continues to progress. For patients for whom treatments with all three classes of drugs have failed, the median progression-free survival is 3-4 months, and the median overall survival is 9 months.
In contrast, the results reported in the NEJM article showed that overall median progression-free survival was 8.8 months, but it was more than double that (20.2 months) for patients who achieved a complete or stringent complete response.
Estimated median overall survival was 19.4 months, and the overall survival was 78% at 12 months. The authors note that overall survival data are not yet mature.
The patients who were enrolled in the CAR T-cell trial had undergone many previous treatments. They had undergone a median of six prior drug therapies (range, 3-16), and most of the patients (120, 94%) had also undergone autologous hematopoietic stem cell transplant.
In addition, the majority of patients (84%) had disease that was triple refractory (to an immunomodulatory agent, a proteasome inhibitor, and an anti-CD38 antibody), 60% had disease that was penta-exposed (to bortezomib, carfilzomib, lenalidomide, pomalidomide, and daratumumab), and 26% had disease that was penta-refractory.
In the NEJM article, the authors report that about a third of patients had a complete response to CAR T-cell therapy.
At a median follow-up of 13.3 months, 94 of 128 patients (73%) showed a response to therapy (P < .001); 42 (33%) showed a complete or stringent complete response; and 67 patients (52%) showed a “very good partial response or better,” they write.
In the FDA announcement of the product approval, the figures for complete response were slightly lower. “Of those studied, 28% of patients showed complete response – or disappearance of all signs of multiple myeloma – to Abecma, and 65% of this group remained in complete response to the treatment for at least 12 months,” the agency noted.
The FDA also noted that treatment with Abecma can cause severe side effects. The label carries a boxed warning regarding CRS, hemophagocytic lymphohistiocytosis/macrophage activation syndrome, neurologic toxicity, and prolonged cytopenia, all of which can be fatal or life threatening.
The most common side effects of Abecma are CRS, infections, fatigue, musculoskeletal pain, and a weakened immune system. Side effects from treatment usually appear within the first 1-2 weeks after treatment, but some side effects may occur later.
The agency also noted that, to further evaluate the long-term safety of the drug, it is requiring the manufacturer to conduct a postmarketing observational study.
“The FDA remains committed to advancing novel treatment options for areas of unmet patient need,” said Peter Marks, MD, PhD, director of the FDA’s Center for Biologics Evaluation and Research.
“While there is no cure for multiple myeloma, the long-term outlook can vary based on the individual’s age and the stage of the condition at the time of diagnosis. Today’s approval provides a new treatment option for patients who have this uncommon type of cancer.”
A version of this article first appeared on Medscape.com.
FDA approves first drug that protects against chemo-induced myelosuppression
A novel drug that offers multilineage protection from chemotherapy-induced myelosuppression has been approved by the Food and Drug Administration.
The drug, trilaciclib (Cosela, G1 Therapeutics) is administered intravenously as a 30-minute infusion within 4 hours prior to the start of chemotherapy. It is indicated specifically for use in adults with extensive-stage small-cell lung cancer (ES-SCLC) who are receiving chemotherapy.
Trilaciclib is a CDK4/6 inhibitor, and this action appears to protect normal bone marrow cells from the harmful effects of chemotherapy.
“For patients with extensive-stage small-cell lung cancer, protecting bone marrow function may help make their chemotherapy safer and allow them to complete their course of treatment on time and according to plan,” Albert Deisseroth, MD, PhD, of the FDA’s Center for Drug Evaluation and Research, said in an FDA press release.
First drug of its type
Trilaciclib “is the first and only therapy designed to help protect bone marrow (myeloprotection) when administered prior to treatment with chemotherapy,” according to the drug’s manufacturer.
Myelosuppression is one of the most severe adverse effects of chemotherapy, and it can be life-threatening. It can increase the risk of infection and lead to severe anemia and/or bleeding.
“These complications impact patients’ quality of life and may also result in chemotherapy dose reductions and delays,” Jeffrey Crawford, MD, of Duke Cancer Institute, Durham, N.C., said in a company press release.
“To date, approaches have included the use of growth factor agents to accelerate blood cell recovery after the bone marrow injury has occurred, along with antibiotics and transfusions as needed. By contrast, trilaciclib provides the first proactive approach to myelosuppression through a unique mechanism of action that helps protect the bone marrow from damage by chemotherapy.”
Approval based on randomized, placebo-controlled trials
The approval of trilaciclib is based on data from three randomized, double-blind, placebo-controlled studies, involving a total of 245 patients with ES-SCLC.
These patients were being treated with chemotherapy regimens that were based on the combination of carboplatin and etoposide (with or without the immunotherapy atezolizumab) or regimens that were based on topotecan.
Before receiving the chemotherapy, patients were randomly assigned to receive trilaciclib or placebo.
Results showed that patients who had received an infusion of trilaciclib before receiving chemotherapy had a lower chance of developing severe neutropenia compared with patients who received a placebo, the FDA noted. In addition, among the patients who did develop severe neutropenia, this had a shorter duration among patients who received trilaciclib than among those who received placebo.
The most common side effects of trilaciclib were fatigue; low levels of calcium, potassium, and phosphate in the blood; increased levels of aspartate aminotransferase; headache; and pneumonia.
The FDA noted that patients should also be advised about injection site reactions, acute drug hypersensitivity, interstitial lung disease/pneumonitis, and embryo-fetal toxicity.
The approval received a priority review, based on the drug’s breakthrough therapy designation. As is common for such products, the company plans postmarketing activities that will assess the effects of trilaciclib on disease progression or survival with at least a 2-year follow up. This clinical trial is scheduled to start in 2022.
A version of this article first appeared on Medscape.com.
A novel drug that offers multilineage protection from chemotherapy-induced myelosuppression has been approved by the Food and Drug Administration.
The drug, trilaciclib (Cosela, G1 Therapeutics) is administered intravenously as a 30-minute infusion within 4 hours prior to the start of chemotherapy. It is indicated specifically for use in adults with extensive-stage small-cell lung cancer (ES-SCLC) who are receiving chemotherapy.
Trilaciclib is a CDK4/6 inhibitor, and this action appears to protect normal bone marrow cells from the harmful effects of chemotherapy.
“For patients with extensive-stage small-cell lung cancer, protecting bone marrow function may help make their chemotherapy safer and allow them to complete their course of treatment on time and according to plan,” Albert Deisseroth, MD, PhD, of the FDA’s Center for Drug Evaluation and Research, said in an FDA press release.
First drug of its type
Trilaciclib “is the first and only therapy designed to help protect bone marrow (myeloprotection) when administered prior to treatment with chemotherapy,” according to the drug’s manufacturer.
Myelosuppression is one of the most severe adverse effects of chemotherapy, and it can be life-threatening. It can increase the risk of infection and lead to severe anemia and/or bleeding.
“These complications impact patients’ quality of life and may also result in chemotherapy dose reductions and delays,” Jeffrey Crawford, MD, of Duke Cancer Institute, Durham, N.C., said in a company press release.
“To date, approaches have included the use of growth factor agents to accelerate blood cell recovery after the bone marrow injury has occurred, along with antibiotics and transfusions as needed. By contrast, trilaciclib provides the first proactive approach to myelosuppression through a unique mechanism of action that helps protect the bone marrow from damage by chemotherapy.”
Approval based on randomized, placebo-controlled trials
The approval of trilaciclib is based on data from three randomized, double-blind, placebo-controlled studies, involving a total of 245 patients with ES-SCLC.
These patients were being treated with chemotherapy regimens that were based on the combination of carboplatin and etoposide (with or without the immunotherapy atezolizumab) or regimens that were based on topotecan.
Before receiving the chemotherapy, patients were randomly assigned to receive trilaciclib or placebo.
Results showed that patients who had received an infusion of trilaciclib before receiving chemotherapy had a lower chance of developing severe neutropenia compared with patients who received a placebo, the FDA noted. In addition, among the patients who did develop severe neutropenia, this had a shorter duration among patients who received trilaciclib than among those who received placebo.
The most common side effects of trilaciclib were fatigue; low levels of calcium, potassium, and phosphate in the blood; increased levels of aspartate aminotransferase; headache; and pneumonia.
The FDA noted that patients should also be advised about injection site reactions, acute drug hypersensitivity, interstitial lung disease/pneumonitis, and embryo-fetal toxicity.
The approval received a priority review, based on the drug’s breakthrough therapy designation. As is common for such products, the company plans postmarketing activities that will assess the effects of trilaciclib on disease progression or survival with at least a 2-year follow up. This clinical trial is scheduled to start in 2022.
A version of this article first appeared on Medscape.com.
A novel drug that offers multilineage protection from chemotherapy-induced myelosuppression has been approved by the Food and Drug Administration.
The drug, trilaciclib (Cosela, G1 Therapeutics) is administered intravenously as a 30-minute infusion within 4 hours prior to the start of chemotherapy. It is indicated specifically for use in adults with extensive-stage small-cell lung cancer (ES-SCLC) who are receiving chemotherapy.
Trilaciclib is a CDK4/6 inhibitor, and this action appears to protect normal bone marrow cells from the harmful effects of chemotherapy.
“For patients with extensive-stage small-cell lung cancer, protecting bone marrow function may help make their chemotherapy safer and allow them to complete their course of treatment on time and according to plan,” Albert Deisseroth, MD, PhD, of the FDA’s Center for Drug Evaluation and Research, said in an FDA press release.
First drug of its type
Trilaciclib “is the first and only therapy designed to help protect bone marrow (myeloprotection) when administered prior to treatment with chemotherapy,” according to the drug’s manufacturer.
Myelosuppression is one of the most severe adverse effects of chemotherapy, and it can be life-threatening. It can increase the risk of infection and lead to severe anemia and/or bleeding.
“These complications impact patients’ quality of life and may also result in chemotherapy dose reductions and delays,” Jeffrey Crawford, MD, of Duke Cancer Institute, Durham, N.C., said in a company press release.
“To date, approaches have included the use of growth factor agents to accelerate blood cell recovery after the bone marrow injury has occurred, along with antibiotics and transfusions as needed. By contrast, trilaciclib provides the first proactive approach to myelosuppression through a unique mechanism of action that helps protect the bone marrow from damage by chemotherapy.”
Approval based on randomized, placebo-controlled trials
The approval of trilaciclib is based on data from three randomized, double-blind, placebo-controlled studies, involving a total of 245 patients with ES-SCLC.
These patients were being treated with chemotherapy regimens that were based on the combination of carboplatin and etoposide (with or without the immunotherapy atezolizumab) or regimens that were based on topotecan.
Before receiving the chemotherapy, patients were randomly assigned to receive trilaciclib or placebo.
Results showed that patients who had received an infusion of trilaciclib before receiving chemotherapy had a lower chance of developing severe neutropenia compared with patients who received a placebo, the FDA noted. In addition, among the patients who did develop severe neutropenia, this had a shorter duration among patients who received trilaciclib than among those who received placebo.
The most common side effects of trilaciclib were fatigue; low levels of calcium, potassium, and phosphate in the blood; increased levels of aspartate aminotransferase; headache; and pneumonia.
The FDA noted that patients should also be advised about injection site reactions, acute drug hypersensitivity, interstitial lung disease/pneumonitis, and embryo-fetal toxicity.
The approval received a priority review, based on the drug’s breakthrough therapy designation. As is common for such products, the company plans postmarketing activities that will assess the effects of trilaciclib on disease progression or survival with at least a 2-year follow up. This clinical trial is scheduled to start in 2022.
A version of this article first appeared on Medscape.com.
FDA approves first agent for PSMA-PET imaging in prostate cancer
A radioactive diagnostic agent has been approved by the U.S. Food and Drug Administration for use in patients with prostate cancer, but only for those treated at two institutions in California.
The product, Gallium 68 PSMA-11 (Ga 68 PSMA-11), is the first agent approved specifically for use in positron-emission tomography (PET) imaging of prostate-specific membrane antigen (PSMA)–positive lesions in men with prostate cancer, the FDA noted.
This imaging approach can “detect whether or not the cancer has spread to other parts of the body,” commented Alex Gorovets, MD, acting deputy director of the Office of Specialty Medicine in the FDA’s Center for Drug Evaluation and Research.
Ga 68 PSMA-11 is indicated for use in patients with suspected prostate cancer metastasis whose conditions are potentially curable by surgery or radiotherapy and in patients with suspected prostate cancer recurrence, as determined on the basis of elevated serum prostate-specific antigen (PSA) levels.
Institutional use only
Ga 68 PSMA-11 has been approved for institutional use at the University of California, Los Angeles and the University of California, San Francisco under an academic new drug application (NDA).
The FDA approval was based partly on a clinical trial conducted by the UCSF and UCLA research teams on the effectiveness of PSMA-PET.
“It is rare for academic institutions to obtain FDA approval of a drug, and this unique collaboration has led to what is one of the first coapprovals of a drug at two institutions,” said Thomas Hope, MD, an associate professor at UCSF. “We hope that this first step will lead to a more widespread availability of this imaging test to men with prostate cancer throughout the country.”
Ga 68 PSMA-11 was developed outside the United States at the University of Heidelberg (Germany).
A commercial NDA from Telix Pharmaceuticals for TL591-CDx, a radiopharmaceutical cold kit for the preparation of Ga 68 PSMA-11 injection, is under consideration by the FDA.
The agency noted that two other PET diagnostic agents – fluciclovine F18 and choline C11 – are approved for prostate cancer imaging. However, they are only approved for use in patients with suspected cancer recurrence.
Trial results with PSMA-PET/CT
“PSMA-PET/CT is a novel molecular and functional imaging modality specific for prostate cancer cells that has good sensitivity and outstanding specificity in detecting metastasis,” commented T. Martin Ma, MD, PhD, of UCLA.
Dr. Ma presented a U.S. study on the technique at the recent annual meeting of the American Society for Radiation Oncology. That study showed that PSMA-PET/CT led to nodal upstaging in 19.7% of patients and metastasis upstaging in 9.4%.
He said these results were similar to those from the Australian proPSMA trial, which was published in The Lancet earlier this year. That trial found PSMA-PET/CT to be superior to conventional imaging with CT and bone scanning for primary staging of high-risk prostate cancer.
“These findings carry significant clinical implications and can affect treatment decision-making,” Dr. Ma commented.
“PSMA-PET has been a real game changer in high-risk prostate cancer and has implications in the various stages of prostate cancer management from diagnosis and staging to theranostics,” said Renu Eapen, MBBS, of Peter MacCallum Cancer Center, Melbourne, who was not involved in either study.
“PSMA-PET/CT has challenged conventional imaging in staging before curative-intent surgery or radiotherapy,” Dr. Eapen added.
The accuracy of PSMA-PET/CT was 27% higher than that of conventional imaging in the proPSMA trial, she noted in an interview last month. This superior accuracy can ultimately affect management. The imaging has additional benefits of lower radiation dose as well as reproducibility with high reporter agreement, potentially making it a “one-stop-shop” scan.
Trial results with Ga 68 PSMA-11
The safety and efficacy of Ga 68 PSMA-11 were evaluated in two prospective clinical trials with a total of 960 men with prostate cancer, each of whom received one injection of the product.
The first trial involved 325 patients with biopsy-proven prostate cancer who underwent PET/CT or PET/MRI scans performed with Ga 68 PSMA-11.
“These patients were candidates for surgical removal of the prostate gland and pelvic lymph nodes and were considered at higher risk for metastasis. Among the patients who proceeded to surgery, those with positive readings in the pelvic lymph nodes on Ga 68 PSMA-11 PET had a clinically important rate of metastatic cancer confirmed by surgical pathology,” the FDA noted.
“The availability of this information prior to treatment is expected to have important implications for patient care,” the FDA commented. “For example, it may spare certain patients from undergoing unnecessary surgery.”
The second trial enrolled 635 patients with rising serum PSA levels after initial prostate surgery or radiotherapy. All patients received a single Ga 68 PSMA-11 PET/CT scan or PET/MRI scan.
About three-quarters of patients (74%) had at least one positive lesion detected by Ga 68 PSMA-11 PET in at least one region – bone, prostate bed, pelvic lymph node, or extra-pelvic soft tissue.
“In patients with positive Ga 68 PSMA-11 PET readings who had correlative tissue pathology from biopsies, results from baseline or follow-up imaging by conventional methods, and serial PSA levels available for comparison, local recurrence or metastasis of prostate cancer was confirmed in an estimated 91% of cases,” the FDA noted.
“Thus, the second trial demonstrated that Ga 68 PSMA-11 PET can detect sites of disease in patients with biochemical evidence of recurrent prostate cancer, thereby providing important information that may impact the approach to therapy,” the agency added.
The FDA also noted that no serious adverse reactions were attributed to Ga 68 PSMA-11. The most common adverse reactions were nausea, diarrhea, and dizziness.
The FDA said there is a risk for misdiagnosis because Ga 68 PSMA-11 binding may occur in other types of cancer, and certain nonmalignant processes may lead to errors in interpreting images. In addition, there are radiation risks because Ga 68 PSMA-11 contributes to a patient’s overall long-term cumulative radiation exposure, which is associated with an increased risk for cancer.
A version of this article originally appeared on Medscape.com.
A radioactive diagnostic agent has been approved by the U.S. Food and Drug Administration for use in patients with prostate cancer, but only for those treated at two institutions in California.
The product, Gallium 68 PSMA-11 (Ga 68 PSMA-11), is the first agent approved specifically for use in positron-emission tomography (PET) imaging of prostate-specific membrane antigen (PSMA)–positive lesions in men with prostate cancer, the FDA noted.
This imaging approach can “detect whether or not the cancer has spread to other parts of the body,” commented Alex Gorovets, MD, acting deputy director of the Office of Specialty Medicine in the FDA’s Center for Drug Evaluation and Research.
Ga 68 PSMA-11 is indicated for use in patients with suspected prostate cancer metastasis whose conditions are potentially curable by surgery or radiotherapy and in patients with suspected prostate cancer recurrence, as determined on the basis of elevated serum prostate-specific antigen (PSA) levels.
Institutional use only
Ga 68 PSMA-11 has been approved for institutional use at the University of California, Los Angeles and the University of California, San Francisco under an academic new drug application (NDA).
The FDA approval was based partly on a clinical trial conducted by the UCSF and UCLA research teams on the effectiveness of PSMA-PET.
“It is rare for academic institutions to obtain FDA approval of a drug, and this unique collaboration has led to what is one of the first coapprovals of a drug at two institutions,” said Thomas Hope, MD, an associate professor at UCSF. “We hope that this first step will lead to a more widespread availability of this imaging test to men with prostate cancer throughout the country.”
Ga 68 PSMA-11 was developed outside the United States at the University of Heidelberg (Germany).
A commercial NDA from Telix Pharmaceuticals for TL591-CDx, a radiopharmaceutical cold kit for the preparation of Ga 68 PSMA-11 injection, is under consideration by the FDA.
The agency noted that two other PET diagnostic agents – fluciclovine F18 and choline C11 – are approved for prostate cancer imaging. However, they are only approved for use in patients with suspected cancer recurrence.
Trial results with PSMA-PET/CT
“PSMA-PET/CT is a novel molecular and functional imaging modality specific for prostate cancer cells that has good sensitivity and outstanding specificity in detecting metastasis,” commented T. Martin Ma, MD, PhD, of UCLA.
Dr. Ma presented a U.S. study on the technique at the recent annual meeting of the American Society for Radiation Oncology. That study showed that PSMA-PET/CT led to nodal upstaging in 19.7% of patients and metastasis upstaging in 9.4%.
He said these results were similar to those from the Australian proPSMA trial, which was published in The Lancet earlier this year. That trial found PSMA-PET/CT to be superior to conventional imaging with CT and bone scanning for primary staging of high-risk prostate cancer.
“These findings carry significant clinical implications and can affect treatment decision-making,” Dr. Ma commented.
“PSMA-PET has been a real game changer in high-risk prostate cancer and has implications in the various stages of prostate cancer management from diagnosis and staging to theranostics,” said Renu Eapen, MBBS, of Peter MacCallum Cancer Center, Melbourne, who was not involved in either study.
“PSMA-PET/CT has challenged conventional imaging in staging before curative-intent surgery or radiotherapy,” Dr. Eapen added.
The accuracy of PSMA-PET/CT was 27% higher than that of conventional imaging in the proPSMA trial, she noted in an interview last month. This superior accuracy can ultimately affect management. The imaging has additional benefits of lower radiation dose as well as reproducibility with high reporter agreement, potentially making it a “one-stop-shop” scan.
Trial results with Ga 68 PSMA-11
The safety and efficacy of Ga 68 PSMA-11 were evaluated in two prospective clinical trials with a total of 960 men with prostate cancer, each of whom received one injection of the product.
The first trial involved 325 patients with biopsy-proven prostate cancer who underwent PET/CT or PET/MRI scans performed with Ga 68 PSMA-11.
“These patients were candidates for surgical removal of the prostate gland and pelvic lymph nodes and were considered at higher risk for metastasis. Among the patients who proceeded to surgery, those with positive readings in the pelvic lymph nodes on Ga 68 PSMA-11 PET had a clinically important rate of metastatic cancer confirmed by surgical pathology,” the FDA noted.
“The availability of this information prior to treatment is expected to have important implications for patient care,” the FDA commented. “For example, it may spare certain patients from undergoing unnecessary surgery.”
The second trial enrolled 635 patients with rising serum PSA levels after initial prostate surgery or radiotherapy. All patients received a single Ga 68 PSMA-11 PET/CT scan or PET/MRI scan.
About three-quarters of patients (74%) had at least one positive lesion detected by Ga 68 PSMA-11 PET in at least one region – bone, prostate bed, pelvic lymph node, or extra-pelvic soft tissue.
“In patients with positive Ga 68 PSMA-11 PET readings who had correlative tissue pathology from biopsies, results from baseline or follow-up imaging by conventional methods, and serial PSA levels available for comparison, local recurrence or metastasis of prostate cancer was confirmed in an estimated 91% of cases,” the FDA noted.
“Thus, the second trial demonstrated that Ga 68 PSMA-11 PET can detect sites of disease in patients with biochemical evidence of recurrent prostate cancer, thereby providing important information that may impact the approach to therapy,” the agency added.
The FDA also noted that no serious adverse reactions were attributed to Ga 68 PSMA-11. The most common adverse reactions were nausea, diarrhea, and dizziness.
The FDA said there is a risk for misdiagnosis because Ga 68 PSMA-11 binding may occur in other types of cancer, and certain nonmalignant processes may lead to errors in interpreting images. In addition, there are radiation risks because Ga 68 PSMA-11 contributes to a patient’s overall long-term cumulative radiation exposure, which is associated with an increased risk for cancer.
A version of this article originally appeared on Medscape.com.
A radioactive diagnostic agent has been approved by the U.S. Food and Drug Administration for use in patients with prostate cancer, but only for those treated at two institutions in California.
The product, Gallium 68 PSMA-11 (Ga 68 PSMA-11), is the first agent approved specifically for use in positron-emission tomography (PET) imaging of prostate-specific membrane antigen (PSMA)–positive lesions in men with prostate cancer, the FDA noted.
This imaging approach can “detect whether or not the cancer has spread to other parts of the body,” commented Alex Gorovets, MD, acting deputy director of the Office of Specialty Medicine in the FDA’s Center for Drug Evaluation and Research.
Ga 68 PSMA-11 is indicated for use in patients with suspected prostate cancer metastasis whose conditions are potentially curable by surgery or radiotherapy and in patients with suspected prostate cancer recurrence, as determined on the basis of elevated serum prostate-specific antigen (PSA) levels.
Institutional use only
Ga 68 PSMA-11 has been approved for institutional use at the University of California, Los Angeles and the University of California, San Francisco under an academic new drug application (NDA).
The FDA approval was based partly on a clinical trial conducted by the UCSF and UCLA research teams on the effectiveness of PSMA-PET.
“It is rare for academic institutions to obtain FDA approval of a drug, and this unique collaboration has led to what is one of the first coapprovals of a drug at two institutions,” said Thomas Hope, MD, an associate professor at UCSF. “We hope that this first step will lead to a more widespread availability of this imaging test to men with prostate cancer throughout the country.”
Ga 68 PSMA-11 was developed outside the United States at the University of Heidelberg (Germany).
A commercial NDA from Telix Pharmaceuticals for TL591-CDx, a radiopharmaceutical cold kit for the preparation of Ga 68 PSMA-11 injection, is under consideration by the FDA.
The agency noted that two other PET diagnostic agents – fluciclovine F18 and choline C11 – are approved for prostate cancer imaging. However, they are only approved for use in patients with suspected cancer recurrence.
Trial results with PSMA-PET/CT
“PSMA-PET/CT is a novel molecular and functional imaging modality specific for prostate cancer cells that has good sensitivity and outstanding specificity in detecting metastasis,” commented T. Martin Ma, MD, PhD, of UCLA.
Dr. Ma presented a U.S. study on the technique at the recent annual meeting of the American Society for Radiation Oncology. That study showed that PSMA-PET/CT led to nodal upstaging in 19.7% of patients and metastasis upstaging in 9.4%.
He said these results were similar to those from the Australian proPSMA trial, which was published in The Lancet earlier this year. That trial found PSMA-PET/CT to be superior to conventional imaging with CT and bone scanning for primary staging of high-risk prostate cancer.
“These findings carry significant clinical implications and can affect treatment decision-making,” Dr. Ma commented.
“PSMA-PET has been a real game changer in high-risk prostate cancer and has implications in the various stages of prostate cancer management from diagnosis and staging to theranostics,” said Renu Eapen, MBBS, of Peter MacCallum Cancer Center, Melbourne, who was not involved in either study.
“PSMA-PET/CT has challenged conventional imaging in staging before curative-intent surgery or radiotherapy,” Dr. Eapen added.
The accuracy of PSMA-PET/CT was 27% higher than that of conventional imaging in the proPSMA trial, she noted in an interview last month. This superior accuracy can ultimately affect management. The imaging has additional benefits of lower radiation dose as well as reproducibility with high reporter agreement, potentially making it a “one-stop-shop” scan.
Trial results with Ga 68 PSMA-11
The safety and efficacy of Ga 68 PSMA-11 were evaluated in two prospective clinical trials with a total of 960 men with prostate cancer, each of whom received one injection of the product.
The first trial involved 325 patients with biopsy-proven prostate cancer who underwent PET/CT or PET/MRI scans performed with Ga 68 PSMA-11.
“These patients were candidates for surgical removal of the prostate gland and pelvic lymph nodes and were considered at higher risk for metastasis. Among the patients who proceeded to surgery, those with positive readings in the pelvic lymph nodes on Ga 68 PSMA-11 PET had a clinically important rate of metastatic cancer confirmed by surgical pathology,” the FDA noted.
“The availability of this information prior to treatment is expected to have important implications for patient care,” the FDA commented. “For example, it may spare certain patients from undergoing unnecessary surgery.”
The second trial enrolled 635 patients with rising serum PSA levels after initial prostate surgery or radiotherapy. All patients received a single Ga 68 PSMA-11 PET/CT scan or PET/MRI scan.
About three-quarters of patients (74%) had at least one positive lesion detected by Ga 68 PSMA-11 PET in at least one region – bone, prostate bed, pelvic lymph node, or extra-pelvic soft tissue.
“In patients with positive Ga 68 PSMA-11 PET readings who had correlative tissue pathology from biopsies, results from baseline or follow-up imaging by conventional methods, and serial PSA levels available for comparison, local recurrence or metastasis of prostate cancer was confirmed in an estimated 91% of cases,” the FDA noted.
“Thus, the second trial demonstrated that Ga 68 PSMA-11 PET can detect sites of disease in patients with biochemical evidence of recurrent prostate cancer, thereby providing important information that may impact the approach to therapy,” the agency added.
The FDA also noted that no serious adverse reactions were attributed to Ga 68 PSMA-11. The most common adverse reactions were nausea, diarrhea, and dizziness.
The FDA said there is a risk for misdiagnosis because Ga 68 PSMA-11 binding may occur in other types of cancer, and certain nonmalignant processes may lead to errors in interpreting images. In addition, there are radiation risks because Ga 68 PSMA-11 contributes to a patient’s overall long-term cumulative radiation exposure, which is associated with an increased risk for cancer.
A version of this article originally appeared on Medscape.com.
New drug approved for relapsed/refractory neuroblastoma
The Food and Drug Administration has granted accelerated approval for naxitamab (Danyelza) to treat certain patients with neuroblastoma, based on response rates in two small trials.
Naxitamab is a humanized monoclonal antibody that targets GD2, a disialoganglioside highly expressed on neuroblastomas.
The FDA approved naxitamab for use in combination with granulocyte-macrophage colony-stimulating factor (GM-CSF) in adults and children aged 1 year and older who have relapsed or refractory, high-risk neuroblastoma in the bone or bone marrow that demonstrated a partial response, minor response, or stable disease to prior therapy.
Naxitamab was originally developed at Memorial Sloan Kettering Cancer Center in New York, and licensed exclusively to Y-mAbs Therapeutics. As a result of the licensing arrangement, MSKCC has institutional financial interests in the product, the company noted.
Study results
The accelerated approval of naxitamab was based on the overall response rate (ORR) and duration of response in two single-arm, open-label trials: Study 201 (NCT03363373) in 22 patients and Study 12-230 (NCT01757626) in 38 patients.
In both studies, patients received naxitamab at 3 mg/kg administered as an intravenous infusion on days 1, 3, and 5 of each 4-week cycle in combination with GM-CSF subcutaneously at 250 mcg/m2/day on days -4 to 0 and at 500 mcg/m2/day on days 1-5.
Some patients also received radiotherapy. At the investigator’s discretion, patients were permitted to receive preplanned radiation to the primary disease site in Study 201 and radiation to nontarget bony lesions or soft tissue disease in Study 12-230.
The ORR was 45% in Study 201 and 34% in Study 12-230. Responses were observed in the bone and/or bone marrow, the FDA noted.
Less than a third of patients had a duration of response that lasted 6 months or more – 30% of responders in Study 201 and 23% of responders in Study 12-230.
The FDA noted that continued approval of naxitamab may be contingent upon verification and description of clinical benefit in confirmatory trials.
The agency also noted that naxitamab was granted priority review, breakthrough therapy, and orphan drug designation. In addition, a priority review voucher was issued for the rare pediatric disease product application.
Boxed warning and adverse events
Naxitamab has a boxed warning about serious infusion-related reactions and neurotoxicity.
The product information notes that, in clinical studies, naxitamab has been shown to cause serious infusion reactions, including anaphylaxis, cardiac arrest, bronchospasm, stridor, and hypotension. Infusion reactions generally occurred within 24 hours of completing an infusion, most often within 30 minutes of initiation. Infusion reactions were most frequent during the first infusion in each cycle.
To mitigate these risks, Y-mAbs Therapeutics recommends premedication with an antihistamine, acetaminophen, an H2 antagonist, and corticosteroid, as well as close monitoring of patients during and for at least 2 hours after each infusion in a setting where cardiopulmonary resuscitation medication and equipment are available.
Based on its mechanism of action, naxitamab can cause severe pain, according to Y-mAbs Therapeutics. The company recommends premedication with gabapentin and, for example, oral oxycodone, and recommends treating break-through pain with intravenous hydromorphone or an equivalent intervention.
In addition, naxitamab may cause severe hypertension. The onset of hypertension may be delayed, so blood pressure should be monitored both during and after infusion.
The product insert also notes that one case of transverse myelitis (grade 3) and two cases of posterior reversible encephalopathy syndrome have been reported.
The most common adverse reactions (incidence ≥ 25% in either trial) were infusion-related reactions, pain, tachycardia, vomiting, cough, nausea, diarrhea, decreased appetite, hypertension, fatigue, erythema multiforme, peripheral neuropathy, urticaria, pyrexia, headache, injection site reaction, edema, anxiety, localized edema, and irritability.
The most common grade 3 or 4 laboratory abnormalities (≥ 5% in either trial) were decreased lymphocytes, decreased neutrophils, decreased hemoglobin, decreased platelet count, decreased potassium, increased alanine aminotransferase, decreased glucose, decreased calcium, decreased albumin, decreased sodium, and decreased phosphate.
A version of this article appeared on Medscape.com.
The Food and Drug Administration has granted accelerated approval for naxitamab (Danyelza) to treat certain patients with neuroblastoma, based on response rates in two small trials.
Naxitamab is a humanized monoclonal antibody that targets GD2, a disialoganglioside highly expressed on neuroblastomas.
The FDA approved naxitamab for use in combination with granulocyte-macrophage colony-stimulating factor (GM-CSF) in adults and children aged 1 year and older who have relapsed or refractory, high-risk neuroblastoma in the bone or bone marrow that demonstrated a partial response, minor response, or stable disease to prior therapy.
Naxitamab was originally developed at Memorial Sloan Kettering Cancer Center in New York, and licensed exclusively to Y-mAbs Therapeutics. As a result of the licensing arrangement, MSKCC has institutional financial interests in the product, the company noted.
Study results
The accelerated approval of naxitamab was based on the overall response rate (ORR) and duration of response in two single-arm, open-label trials: Study 201 (NCT03363373) in 22 patients and Study 12-230 (NCT01757626) in 38 patients.
In both studies, patients received naxitamab at 3 mg/kg administered as an intravenous infusion on days 1, 3, and 5 of each 4-week cycle in combination with GM-CSF subcutaneously at 250 mcg/m2/day on days -4 to 0 and at 500 mcg/m2/day on days 1-5.
Some patients also received radiotherapy. At the investigator’s discretion, patients were permitted to receive preplanned radiation to the primary disease site in Study 201 and radiation to nontarget bony lesions or soft tissue disease in Study 12-230.
The ORR was 45% in Study 201 and 34% in Study 12-230. Responses were observed in the bone and/or bone marrow, the FDA noted.
Less than a third of patients had a duration of response that lasted 6 months or more – 30% of responders in Study 201 and 23% of responders in Study 12-230.
The FDA noted that continued approval of naxitamab may be contingent upon verification and description of clinical benefit in confirmatory trials.
The agency also noted that naxitamab was granted priority review, breakthrough therapy, and orphan drug designation. In addition, a priority review voucher was issued for the rare pediatric disease product application.
Boxed warning and adverse events
Naxitamab has a boxed warning about serious infusion-related reactions and neurotoxicity.
The product information notes that, in clinical studies, naxitamab has been shown to cause serious infusion reactions, including anaphylaxis, cardiac arrest, bronchospasm, stridor, and hypotension. Infusion reactions generally occurred within 24 hours of completing an infusion, most often within 30 minutes of initiation. Infusion reactions were most frequent during the first infusion in each cycle.
To mitigate these risks, Y-mAbs Therapeutics recommends premedication with an antihistamine, acetaminophen, an H2 antagonist, and corticosteroid, as well as close monitoring of patients during and for at least 2 hours after each infusion in a setting where cardiopulmonary resuscitation medication and equipment are available.
Based on its mechanism of action, naxitamab can cause severe pain, according to Y-mAbs Therapeutics. The company recommends premedication with gabapentin and, for example, oral oxycodone, and recommends treating break-through pain with intravenous hydromorphone or an equivalent intervention.
In addition, naxitamab may cause severe hypertension. The onset of hypertension may be delayed, so blood pressure should be monitored both during and after infusion.
The product insert also notes that one case of transverse myelitis (grade 3) and two cases of posterior reversible encephalopathy syndrome have been reported.
The most common adverse reactions (incidence ≥ 25% in either trial) were infusion-related reactions, pain, tachycardia, vomiting, cough, nausea, diarrhea, decreased appetite, hypertension, fatigue, erythema multiforme, peripheral neuropathy, urticaria, pyrexia, headache, injection site reaction, edema, anxiety, localized edema, and irritability.
The most common grade 3 or 4 laboratory abnormalities (≥ 5% in either trial) were decreased lymphocytes, decreased neutrophils, decreased hemoglobin, decreased platelet count, decreased potassium, increased alanine aminotransferase, decreased glucose, decreased calcium, decreased albumin, decreased sodium, and decreased phosphate.
A version of this article appeared on Medscape.com.
The Food and Drug Administration has granted accelerated approval for naxitamab (Danyelza) to treat certain patients with neuroblastoma, based on response rates in two small trials.
Naxitamab is a humanized monoclonal antibody that targets GD2, a disialoganglioside highly expressed on neuroblastomas.
The FDA approved naxitamab for use in combination with granulocyte-macrophage colony-stimulating factor (GM-CSF) in adults and children aged 1 year and older who have relapsed or refractory, high-risk neuroblastoma in the bone or bone marrow that demonstrated a partial response, minor response, or stable disease to prior therapy.
Naxitamab was originally developed at Memorial Sloan Kettering Cancer Center in New York, and licensed exclusively to Y-mAbs Therapeutics. As a result of the licensing arrangement, MSKCC has institutional financial interests in the product, the company noted.
Study results
The accelerated approval of naxitamab was based on the overall response rate (ORR) and duration of response in two single-arm, open-label trials: Study 201 (NCT03363373) in 22 patients and Study 12-230 (NCT01757626) in 38 patients.
In both studies, patients received naxitamab at 3 mg/kg administered as an intravenous infusion on days 1, 3, and 5 of each 4-week cycle in combination with GM-CSF subcutaneously at 250 mcg/m2/day on days -4 to 0 and at 500 mcg/m2/day on days 1-5.
Some patients also received radiotherapy. At the investigator’s discretion, patients were permitted to receive preplanned radiation to the primary disease site in Study 201 and radiation to nontarget bony lesions or soft tissue disease in Study 12-230.
The ORR was 45% in Study 201 and 34% in Study 12-230. Responses were observed in the bone and/or bone marrow, the FDA noted.
Less than a third of patients had a duration of response that lasted 6 months or more – 30% of responders in Study 201 and 23% of responders in Study 12-230.
The FDA noted that continued approval of naxitamab may be contingent upon verification and description of clinical benefit in confirmatory trials.
The agency also noted that naxitamab was granted priority review, breakthrough therapy, and orphan drug designation. In addition, a priority review voucher was issued for the rare pediatric disease product application.
Boxed warning and adverse events
Naxitamab has a boxed warning about serious infusion-related reactions and neurotoxicity.
The product information notes that, in clinical studies, naxitamab has been shown to cause serious infusion reactions, including anaphylaxis, cardiac arrest, bronchospasm, stridor, and hypotension. Infusion reactions generally occurred within 24 hours of completing an infusion, most often within 30 minutes of initiation. Infusion reactions were most frequent during the first infusion in each cycle.
To mitigate these risks, Y-mAbs Therapeutics recommends premedication with an antihistamine, acetaminophen, an H2 antagonist, and corticosteroid, as well as close monitoring of patients during and for at least 2 hours after each infusion in a setting where cardiopulmonary resuscitation medication and equipment are available.
Based on its mechanism of action, naxitamab can cause severe pain, according to Y-mAbs Therapeutics. The company recommends premedication with gabapentin and, for example, oral oxycodone, and recommends treating break-through pain with intravenous hydromorphone or an equivalent intervention.
In addition, naxitamab may cause severe hypertension. The onset of hypertension may be delayed, so blood pressure should be monitored both during and after infusion.
The product insert also notes that one case of transverse myelitis (grade 3) and two cases of posterior reversible encephalopathy syndrome have been reported.
The most common adverse reactions (incidence ≥ 25% in either trial) were infusion-related reactions, pain, tachycardia, vomiting, cough, nausea, diarrhea, decreased appetite, hypertension, fatigue, erythema multiforme, peripheral neuropathy, urticaria, pyrexia, headache, injection site reaction, edema, anxiety, localized edema, and irritability.
The most common grade 3 or 4 laboratory abnormalities (≥ 5% in either trial) were decreased lymphocytes, decreased neutrophils, decreased hemoglobin, decreased platelet count, decreased potassium, increased alanine aminotransferase, decreased glucose, decreased calcium, decreased albumin, decreased sodium, and decreased phosphate.
A version of this article appeared on Medscape.com.
Pralsetinib: Second drug for RET+ NSCLC approved in U.S.
A second drug is now available in the United States for use in the treatment of patients with metastatic non–small cell lung cancer (NSCLC) that tests positive for rearranged during transfection (RET) fusions.
The new drug is pralsetinib (Gavreto). The Food and Drug Administration granted it an accelerated approval for this indication on the basis of response rate data. Continued approval for this indication depends on clinical benefit in a confirmatory trial.
Pralsetinib joins selpercatinib (Retevmo), which was approved in the United States in May 2020 as the first RET-targeted therapy. Selpercatinib is also indicated for use in RET+ NSCLC and was approved for use in RET+ medullary thyroid cancer and RET+ thyroid cancer.
Pralsetinib is still awaiting approval for these thyroid cancer indications.
Both drugs are taken orally; pralsetinib is taken once daily, and selpercatinib is taken twice daily.
For both drugs, before treatment is initiated, laboratory testing is needed to show that a RET gene alteration is present in the tumor.
RET fusions are found in approximately 1%-2% of patients with NSCLC.
They are the latest of a number of tumor-specific gene alterations found in NSCLC that are targeted with an approved drug.
“Targeted therapies have dramatically improved care for patients with non–small cell lung cancer driven by oncogenes, including EGFR and ALK, and the approval of the selective RET inhibitor pralsetinib, or Gavreto, marks another milestone in a paradigm shift toward precision medicine,” Vivek Subbiah, MD, of the University of Texas MD Anderson Cancer Center, Houston, said in a press release.
Dr. Subbiah was an investigator of the phase 1/2 clinical trial known as ARROW, which provided the data on which the accelerated approval was based. In this trial, patients with RET+ NSCLC were found by testing with next-generation sequencing, FISH (fluorescence in situ hybridization), or other methods.
The ARROW trial involved one cohort of 87 patients who had previously been treated with platinum-based chemotherapy. In these patients, the overall response rate (ORR) was 57%, the complete response (CR) rate was 5.7%, and the median duration of response (DOR) was not estimable, according to the manufacturer, Blueprint Medicines.
The trial also involved 27 treatment-naive patients who were ineligible for platinum-based chemotherapy per the study protocol. In this group, the ORR was 70%, and the CR rate was 11%. The median DOR was 9.0 months.
“Patients treated with [pralsetinib] had durable clinical responses, with a subset achieving complete responses characterized by the resolution of all target lesions, an uncommon outcome in metastatic lung cancer,” Dr. Subbiah commented.
“We observed this activity with or without prior therapy and regardless of RET fusion partner or the presence of brain metastases. This approval represents an important advance with the potential to change standards of care for patients with RET fusion-positive NSCLC, who have historically had limited treatment options,” Dr. Subbiah added.
Product information for pralsetinib has warnings and precautions of interstitial lung disease/pneumonitis, hypertension, hepatotoxicity, hemorrhagic events, risk for impaired wound healing, and risk for embryo-fetal toxicity.
This article first appeared on Medscape.com.
A second drug is now available in the United States for use in the treatment of patients with metastatic non–small cell lung cancer (NSCLC) that tests positive for rearranged during transfection (RET) fusions.
The new drug is pralsetinib (Gavreto). The Food and Drug Administration granted it an accelerated approval for this indication on the basis of response rate data. Continued approval for this indication depends on clinical benefit in a confirmatory trial.
Pralsetinib joins selpercatinib (Retevmo), which was approved in the United States in May 2020 as the first RET-targeted therapy. Selpercatinib is also indicated for use in RET+ NSCLC and was approved for use in RET+ medullary thyroid cancer and RET+ thyroid cancer.
Pralsetinib is still awaiting approval for these thyroid cancer indications.
Both drugs are taken orally; pralsetinib is taken once daily, and selpercatinib is taken twice daily.
For both drugs, before treatment is initiated, laboratory testing is needed to show that a RET gene alteration is present in the tumor.
RET fusions are found in approximately 1%-2% of patients with NSCLC.
They are the latest of a number of tumor-specific gene alterations found in NSCLC that are targeted with an approved drug.
“Targeted therapies have dramatically improved care for patients with non–small cell lung cancer driven by oncogenes, including EGFR and ALK, and the approval of the selective RET inhibitor pralsetinib, or Gavreto, marks another milestone in a paradigm shift toward precision medicine,” Vivek Subbiah, MD, of the University of Texas MD Anderson Cancer Center, Houston, said in a press release.
Dr. Subbiah was an investigator of the phase 1/2 clinical trial known as ARROW, which provided the data on which the accelerated approval was based. In this trial, patients with RET+ NSCLC were found by testing with next-generation sequencing, FISH (fluorescence in situ hybridization), or other methods.
The ARROW trial involved one cohort of 87 patients who had previously been treated with platinum-based chemotherapy. In these patients, the overall response rate (ORR) was 57%, the complete response (CR) rate was 5.7%, and the median duration of response (DOR) was not estimable, according to the manufacturer, Blueprint Medicines.
The trial also involved 27 treatment-naive patients who were ineligible for platinum-based chemotherapy per the study protocol. In this group, the ORR was 70%, and the CR rate was 11%. The median DOR was 9.0 months.
“Patients treated with [pralsetinib] had durable clinical responses, with a subset achieving complete responses characterized by the resolution of all target lesions, an uncommon outcome in metastatic lung cancer,” Dr. Subbiah commented.
“We observed this activity with or without prior therapy and regardless of RET fusion partner or the presence of brain metastases. This approval represents an important advance with the potential to change standards of care for patients with RET fusion-positive NSCLC, who have historically had limited treatment options,” Dr. Subbiah added.
Product information for pralsetinib has warnings and precautions of interstitial lung disease/pneumonitis, hypertension, hepatotoxicity, hemorrhagic events, risk for impaired wound healing, and risk for embryo-fetal toxicity.
This article first appeared on Medscape.com.
A second drug is now available in the United States for use in the treatment of patients with metastatic non–small cell lung cancer (NSCLC) that tests positive for rearranged during transfection (RET) fusions.
The new drug is pralsetinib (Gavreto). The Food and Drug Administration granted it an accelerated approval for this indication on the basis of response rate data. Continued approval for this indication depends on clinical benefit in a confirmatory trial.
Pralsetinib joins selpercatinib (Retevmo), which was approved in the United States in May 2020 as the first RET-targeted therapy. Selpercatinib is also indicated for use in RET+ NSCLC and was approved for use in RET+ medullary thyroid cancer and RET+ thyroid cancer.
Pralsetinib is still awaiting approval for these thyroid cancer indications.
Both drugs are taken orally; pralsetinib is taken once daily, and selpercatinib is taken twice daily.
For both drugs, before treatment is initiated, laboratory testing is needed to show that a RET gene alteration is present in the tumor.
RET fusions are found in approximately 1%-2% of patients with NSCLC.
They are the latest of a number of tumor-specific gene alterations found in NSCLC that are targeted with an approved drug.
“Targeted therapies have dramatically improved care for patients with non–small cell lung cancer driven by oncogenes, including EGFR and ALK, and the approval of the selective RET inhibitor pralsetinib, or Gavreto, marks another milestone in a paradigm shift toward precision medicine,” Vivek Subbiah, MD, of the University of Texas MD Anderson Cancer Center, Houston, said in a press release.
Dr. Subbiah was an investigator of the phase 1/2 clinical trial known as ARROW, which provided the data on which the accelerated approval was based. In this trial, patients with RET+ NSCLC were found by testing with next-generation sequencing, FISH (fluorescence in situ hybridization), or other methods.
The ARROW trial involved one cohort of 87 patients who had previously been treated with platinum-based chemotherapy. In these patients, the overall response rate (ORR) was 57%, the complete response (CR) rate was 5.7%, and the median duration of response (DOR) was not estimable, according to the manufacturer, Blueprint Medicines.
The trial also involved 27 treatment-naive patients who were ineligible for platinum-based chemotherapy per the study protocol. In this group, the ORR was 70%, and the CR rate was 11%. The median DOR was 9.0 months.
“Patients treated with [pralsetinib] had durable clinical responses, with a subset achieving complete responses characterized by the resolution of all target lesions, an uncommon outcome in metastatic lung cancer,” Dr. Subbiah commented.
“We observed this activity with or without prior therapy and regardless of RET fusion partner or the presence of brain metastases. This approval represents an important advance with the potential to change standards of care for patients with RET fusion-positive NSCLC, who have historically had limited treatment options,” Dr. Subbiah added.
Product information for pralsetinib has warnings and precautions of interstitial lung disease/pneumonitis, hypertension, hepatotoxicity, hemorrhagic events, risk for impaired wound healing, and risk for embryo-fetal toxicity.
This article first appeared on Medscape.com.