User login
FDA Approves First Targeted Therapy for Gliomas With IDH Mutations
Specifically, the oral targeted inhibitor of IDH1 and IDH2 was approved for use after surgery in adults and children aged 12 years or older who have grade 2 astrocytoma or oligodendroglioma with a susceptible IDH1 or IDH2 mutation. According to the FDA, surgery includes biopsy, subtotal resection, or gross total resection.
Mutations in IDH1 are present in around 80% of grade 2 gliomas, whereas IDH2 mutations are more infrequent, occurring in about 4%.
Prior to the approval, which was based on progression-free survival (PFS) and safety findings from the pivotal phase 3 INDIGO trial, patients with this type of glioma had limited treatment options, said a Servier spokesperson.
The approval of vorasidenib marks “one of the biggest advances in low-grade glioma in more than two decades” and “will empower patients to take active control of their disease with a once-daily pill,” according to the spokesperson.
In the INDIGO trial, 331 patients were randomly assigned to receive 40 mg of vorasidenib once daily (n = 168) or placebo (n = 163). At a median follow-up of 14.2 months, the median PFS was more than twice as long among those who received vorasidenib vs placebo: 27.7 months vs 11.1 months, respectively (hazard ratio [HR] for disease progression or death, 0.39). The time to next intervention was also significantly longer with vorasidenib vs placebo (median not reached vs 17.8 months, respectively; HR, 0.26).
The 61% reduction in the risk for tumor progression or death observed in the trial represents “a significant sign of efficacy that has the potential to change the landscape in this disease,” first author Ingo K. Mellinghoff, MD, of Memorial Sloan Kettering Cancer Center, New York City, told this news organization in 2023, when presenting the findings at the 2023 American Society of Clinical Oncology conference. These findings were simultaneously published in The New England Journal of Medicine.
Glenn Lesser, MD, a discussant at the 2023 meeting, commented on the “striking” findings. The results are “statistically highly significant, and more importantly, they’re clinically very, very significant,” said Dr. Lesser, from Wake Forest Baptist Health in Winston-Salem, North Carolina.
Vorasidenib can also potentially delay the use of toxic chemotherapies and radiation for many years in patients with these tumors, Dr. Lesser added.
Adverse events of grade 3 or higher occurred in 22.8% of those who received vorasidenib and in 13.5% of those in the placebo group. Increased alanine aminotransferase levels of grade 3 or higher occurred in 9.6 vs 0% of patients in the groups, respectively.
The most common adverse reactions with vorasidenib, affecting at least 15% of treated patients, include fatigue, headache, COVID-19, musculoskeletal pain, diarrhea, nausea, and seizure. The most common grade 3 or 4 laboratory abnormalities were increased alanine aminotransferase, aspartate aminotransferase, gamma-glutamyl transpeptidase as well as decreased neutrophils.
The recommended dose of vorasidenib for adults is 40 mg given orally once daily until disease progression or unacceptable toxicity. In children aged 12 or older, the recommended dose is 40 mg given orally once daily for those weighing ≥ 40 kg, and 20 mg given orally once daily for those weighing < 40 kg.
A version of this article first appeared on Medscape.com.
Specifically, the oral targeted inhibitor of IDH1 and IDH2 was approved for use after surgery in adults and children aged 12 years or older who have grade 2 astrocytoma or oligodendroglioma with a susceptible IDH1 or IDH2 mutation. According to the FDA, surgery includes biopsy, subtotal resection, or gross total resection.
Mutations in IDH1 are present in around 80% of grade 2 gliomas, whereas IDH2 mutations are more infrequent, occurring in about 4%.
Prior to the approval, which was based on progression-free survival (PFS) and safety findings from the pivotal phase 3 INDIGO trial, patients with this type of glioma had limited treatment options, said a Servier spokesperson.
The approval of vorasidenib marks “one of the biggest advances in low-grade glioma in more than two decades” and “will empower patients to take active control of their disease with a once-daily pill,” according to the spokesperson.
In the INDIGO trial, 331 patients were randomly assigned to receive 40 mg of vorasidenib once daily (n = 168) or placebo (n = 163). At a median follow-up of 14.2 months, the median PFS was more than twice as long among those who received vorasidenib vs placebo: 27.7 months vs 11.1 months, respectively (hazard ratio [HR] for disease progression or death, 0.39). The time to next intervention was also significantly longer with vorasidenib vs placebo (median not reached vs 17.8 months, respectively; HR, 0.26).
The 61% reduction in the risk for tumor progression or death observed in the trial represents “a significant sign of efficacy that has the potential to change the landscape in this disease,” first author Ingo K. Mellinghoff, MD, of Memorial Sloan Kettering Cancer Center, New York City, told this news organization in 2023, when presenting the findings at the 2023 American Society of Clinical Oncology conference. These findings were simultaneously published in The New England Journal of Medicine.
Glenn Lesser, MD, a discussant at the 2023 meeting, commented on the “striking” findings. The results are “statistically highly significant, and more importantly, they’re clinically very, very significant,” said Dr. Lesser, from Wake Forest Baptist Health in Winston-Salem, North Carolina.
Vorasidenib can also potentially delay the use of toxic chemotherapies and radiation for many years in patients with these tumors, Dr. Lesser added.
Adverse events of grade 3 or higher occurred in 22.8% of those who received vorasidenib and in 13.5% of those in the placebo group. Increased alanine aminotransferase levels of grade 3 or higher occurred in 9.6 vs 0% of patients in the groups, respectively.
The most common adverse reactions with vorasidenib, affecting at least 15% of treated patients, include fatigue, headache, COVID-19, musculoskeletal pain, diarrhea, nausea, and seizure. The most common grade 3 or 4 laboratory abnormalities were increased alanine aminotransferase, aspartate aminotransferase, gamma-glutamyl transpeptidase as well as decreased neutrophils.
The recommended dose of vorasidenib for adults is 40 mg given orally once daily until disease progression or unacceptable toxicity. In children aged 12 or older, the recommended dose is 40 mg given orally once daily for those weighing ≥ 40 kg, and 20 mg given orally once daily for those weighing < 40 kg.
A version of this article first appeared on Medscape.com.
Specifically, the oral targeted inhibitor of IDH1 and IDH2 was approved for use after surgery in adults and children aged 12 years or older who have grade 2 astrocytoma or oligodendroglioma with a susceptible IDH1 or IDH2 mutation. According to the FDA, surgery includes biopsy, subtotal resection, or gross total resection.
Mutations in IDH1 are present in around 80% of grade 2 gliomas, whereas IDH2 mutations are more infrequent, occurring in about 4%.
Prior to the approval, which was based on progression-free survival (PFS) and safety findings from the pivotal phase 3 INDIGO trial, patients with this type of glioma had limited treatment options, said a Servier spokesperson.
The approval of vorasidenib marks “one of the biggest advances in low-grade glioma in more than two decades” and “will empower patients to take active control of their disease with a once-daily pill,” according to the spokesperson.
In the INDIGO trial, 331 patients were randomly assigned to receive 40 mg of vorasidenib once daily (n = 168) or placebo (n = 163). At a median follow-up of 14.2 months, the median PFS was more than twice as long among those who received vorasidenib vs placebo: 27.7 months vs 11.1 months, respectively (hazard ratio [HR] for disease progression or death, 0.39). The time to next intervention was also significantly longer with vorasidenib vs placebo (median not reached vs 17.8 months, respectively; HR, 0.26).
The 61% reduction in the risk for tumor progression or death observed in the trial represents “a significant sign of efficacy that has the potential to change the landscape in this disease,” first author Ingo K. Mellinghoff, MD, of Memorial Sloan Kettering Cancer Center, New York City, told this news organization in 2023, when presenting the findings at the 2023 American Society of Clinical Oncology conference. These findings were simultaneously published in The New England Journal of Medicine.
Glenn Lesser, MD, a discussant at the 2023 meeting, commented on the “striking” findings. The results are “statistically highly significant, and more importantly, they’re clinically very, very significant,” said Dr. Lesser, from Wake Forest Baptist Health in Winston-Salem, North Carolina.
Vorasidenib can also potentially delay the use of toxic chemotherapies and radiation for many years in patients with these tumors, Dr. Lesser added.
Adverse events of grade 3 or higher occurred in 22.8% of those who received vorasidenib and in 13.5% of those in the placebo group. Increased alanine aminotransferase levels of grade 3 or higher occurred in 9.6 vs 0% of patients in the groups, respectively.
The most common adverse reactions with vorasidenib, affecting at least 15% of treated patients, include fatigue, headache, COVID-19, musculoskeletal pain, diarrhea, nausea, and seizure. The most common grade 3 or 4 laboratory abnormalities were increased alanine aminotransferase, aspartate aminotransferase, gamma-glutamyl transpeptidase as well as decreased neutrophils.
The recommended dose of vorasidenib for adults is 40 mg given orally once daily until disease progression or unacceptable toxicity. In children aged 12 or older, the recommended dose is 40 mg given orally once daily for those weighing ≥ 40 kg, and 20 mg given orally once daily for those weighing < 40 kg.
A version of this article first appeared on Medscape.com.
FDA Expands Dostarlimab-gxly Approval for Endometrial Cancer
Prior FDA approval of the combination was granted for adults with primary advanced or recurrent endometrial cancer that was mismatch repair deficient (dMMR) or microsatellite instability–high (MSI-H).
The expanded approval, granted following a priority review, was based on efficacy and safety demonstrated in the randomized, controlled, multicenter RUBY trial, which included 494 patients who were randomized to receive the dostarlimab-gxly regimen or placebo plus carboplatin and paclitaxel, followed by placebo.
Researchers observed a significant improvement in median overall survival with treatment vs placebo in the overall population — 44.6 vs 28.2 months, respectively (hazard ratio [HR], 0.69). Median progression-free survival was also significantly better in the treatment vs placebo group — 11.8 vs 7.9 months, respectively (HR, 0.64).
“Today’s expanded approval will offer even more patients the opportunity for improved outcomes,” Matthew Powell, MD, of Washington University School of Medicine, and principal investigator on the RUBY trial, said in a press release. “This is the only immuno-oncology treatment regimen that has shown a statistically significant overall survival benefit for the full patient population, which is a meaningful step forward in treating this challenging cancer.”
Adverse reactions occurring in at least 20% of patients receiving dostarlimab-gxly include anemia, increased creatinine levels, peripheral neuropathy, decreased white blood cell counts, fatigue, nausea, alopecia, low platelet counts, increased glucose levels, lymphopenia, neutropenia, liver function test abnormalities, arthralgia, rash, constipation, diarrhea, decreased albumin levels, abdominal pain, dyspnea, decreased appetite, increased amylase levels, urinary tract infection, and vomiting. Immune-mediated adverse reactions with dostarlimab-gxly were similar to those previously reported.
The recommended dostarlimab-gxly dose, according to the full prescribing information, is 500 mg every 3 weeks for six cycles administered before carboplatin and paclitaxel if given on the same day, followed by 1000 mg monotherapy every 6 weeks until disease progression or unacceptable toxicity, or up to 3 years.
A version of this article first appeared on Medscape.com.
Prior FDA approval of the combination was granted for adults with primary advanced or recurrent endometrial cancer that was mismatch repair deficient (dMMR) or microsatellite instability–high (MSI-H).
The expanded approval, granted following a priority review, was based on efficacy and safety demonstrated in the randomized, controlled, multicenter RUBY trial, which included 494 patients who were randomized to receive the dostarlimab-gxly regimen or placebo plus carboplatin and paclitaxel, followed by placebo.
Researchers observed a significant improvement in median overall survival with treatment vs placebo in the overall population — 44.6 vs 28.2 months, respectively (hazard ratio [HR], 0.69). Median progression-free survival was also significantly better in the treatment vs placebo group — 11.8 vs 7.9 months, respectively (HR, 0.64).
“Today’s expanded approval will offer even more patients the opportunity for improved outcomes,” Matthew Powell, MD, of Washington University School of Medicine, and principal investigator on the RUBY trial, said in a press release. “This is the only immuno-oncology treatment regimen that has shown a statistically significant overall survival benefit for the full patient population, which is a meaningful step forward in treating this challenging cancer.”
Adverse reactions occurring in at least 20% of patients receiving dostarlimab-gxly include anemia, increased creatinine levels, peripheral neuropathy, decreased white blood cell counts, fatigue, nausea, alopecia, low platelet counts, increased glucose levels, lymphopenia, neutropenia, liver function test abnormalities, arthralgia, rash, constipation, diarrhea, decreased albumin levels, abdominal pain, dyspnea, decreased appetite, increased amylase levels, urinary tract infection, and vomiting. Immune-mediated adverse reactions with dostarlimab-gxly were similar to those previously reported.
The recommended dostarlimab-gxly dose, according to the full prescribing information, is 500 mg every 3 weeks for six cycles administered before carboplatin and paclitaxel if given on the same day, followed by 1000 mg monotherapy every 6 weeks until disease progression or unacceptable toxicity, or up to 3 years.
A version of this article first appeared on Medscape.com.
Prior FDA approval of the combination was granted for adults with primary advanced or recurrent endometrial cancer that was mismatch repair deficient (dMMR) or microsatellite instability–high (MSI-H).
The expanded approval, granted following a priority review, was based on efficacy and safety demonstrated in the randomized, controlled, multicenter RUBY trial, which included 494 patients who were randomized to receive the dostarlimab-gxly regimen or placebo plus carboplatin and paclitaxel, followed by placebo.
Researchers observed a significant improvement in median overall survival with treatment vs placebo in the overall population — 44.6 vs 28.2 months, respectively (hazard ratio [HR], 0.69). Median progression-free survival was also significantly better in the treatment vs placebo group — 11.8 vs 7.9 months, respectively (HR, 0.64).
“Today’s expanded approval will offer even more patients the opportunity for improved outcomes,” Matthew Powell, MD, of Washington University School of Medicine, and principal investigator on the RUBY trial, said in a press release. “This is the only immuno-oncology treatment regimen that has shown a statistically significant overall survival benefit for the full patient population, which is a meaningful step forward in treating this challenging cancer.”
Adverse reactions occurring in at least 20% of patients receiving dostarlimab-gxly include anemia, increased creatinine levels, peripheral neuropathy, decreased white blood cell counts, fatigue, nausea, alopecia, low platelet counts, increased glucose levels, lymphopenia, neutropenia, liver function test abnormalities, arthralgia, rash, constipation, diarrhea, decreased albumin levels, abdominal pain, dyspnea, decreased appetite, increased amylase levels, urinary tract infection, and vomiting. Immune-mediated adverse reactions with dostarlimab-gxly were similar to those previously reported.
The recommended dostarlimab-gxly dose, according to the full prescribing information, is 500 mg every 3 weeks for six cycles administered before carboplatin and paclitaxel if given on the same day, followed by 1000 mg monotherapy every 6 weeks until disease progression or unacceptable toxicity, or up to 3 years.
A version of this article first appeared on Medscape.com.
FDA Expands Darzalex Faspro Indication in Myeloma
Approval followed priority review and was based on efficacy and safety findings from the open-label PERSEUS trial involving 709 patients under age 70 years who were randomized to receive bortezomib, lenalidomide, and dexamethasone alone or in combination with daratumumab and hyaluronidase-fihj, according to the FDA.
Compared with bortezomib, lenalidomide, and dexamethasone alone, the addition of daratumumab and hyaluronidase-fihj resulted in a 60% reduction in the risk for disease progression or death (hazard ratio, 0.40). Median progression-free survival was not reached in either group.
Adverse reactions occurring in ≥ 20% of patients were peripheral neuropathy, fatigue, edema, pyrexia, upper respiratory infection, constipation, diarrhea, musculoskeletal pain, insomnia, and rash.
The recommended dosage for this indication is 1800 mg daratumumab and 30,000 units hyaluronidase, according to the full prescribing information.
Daratumumab and hyaluronidase-fihj, which was first approved in 2020, has a range of other indications in multiple myeloma.
A version of this article first appeared on Medscape.com.
Approval followed priority review and was based on efficacy and safety findings from the open-label PERSEUS trial involving 709 patients under age 70 years who were randomized to receive bortezomib, lenalidomide, and dexamethasone alone or in combination with daratumumab and hyaluronidase-fihj, according to the FDA.
Compared with bortezomib, lenalidomide, and dexamethasone alone, the addition of daratumumab and hyaluronidase-fihj resulted in a 60% reduction in the risk for disease progression or death (hazard ratio, 0.40). Median progression-free survival was not reached in either group.
Adverse reactions occurring in ≥ 20% of patients were peripheral neuropathy, fatigue, edema, pyrexia, upper respiratory infection, constipation, diarrhea, musculoskeletal pain, insomnia, and rash.
The recommended dosage for this indication is 1800 mg daratumumab and 30,000 units hyaluronidase, according to the full prescribing information.
Daratumumab and hyaluronidase-fihj, which was first approved in 2020, has a range of other indications in multiple myeloma.
A version of this article first appeared on Medscape.com.
Approval followed priority review and was based on efficacy and safety findings from the open-label PERSEUS trial involving 709 patients under age 70 years who were randomized to receive bortezomib, lenalidomide, and dexamethasone alone or in combination with daratumumab and hyaluronidase-fihj, according to the FDA.
Compared with bortezomib, lenalidomide, and dexamethasone alone, the addition of daratumumab and hyaluronidase-fihj resulted in a 60% reduction in the risk for disease progression or death (hazard ratio, 0.40). Median progression-free survival was not reached in either group.
Adverse reactions occurring in ≥ 20% of patients were peripheral neuropathy, fatigue, edema, pyrexia, upper respiratory infection, constipation, diarrhea, musculoskeletal pain, insomnia, and rash.
The recommended dosage for this indication is 1800 mg daratumumab and 30,000 units hyaluronidase, according to the full prescribing information.
Daratumumab and hyaluronidase-fihj, which was first approved in 2020, has a range of other indications in multiple myeloma.
A version of this article first appeared on Medscape.com.
FDA Expands Darzalex Faspro Indication in Myeloma
Approval followed priority review and was based on efficacy and safety findings from the open-label PERSEUS trial involving 709 patients under age 70 years who were randomized to receive bortezomib, lenalidomide, and dexamethasone alone or in combination with daratumumab and hyaluronidase-fihj, according to the FDA.
Compared with bortezomib, lenalidomide, and dexamethasone alone, the addition of daratumumab and hyaluronidase-fihj resulted in a 60% reduction in the risk for disease progression or death (hazard ratio, 0.40). Median progression-free survival was not reached in either group.
Adverse reactions occurring in ≥ 20% of patients were peripheral neuropathy, fatigue, edema, pyrexia, upper respiratory infection, constipation, diarrhea, musculoskeletal pain, insomnia, and rash.
The recommended dosage for this indication is 1800 mg daratumumab and 30,000 units hyaluronidase, according to the full prescribing information.
Daratumumab and hyaluronidase-fihj, which was first approved in 2020, has a range of other indications in multiple myeloma.
A version of this article appeared on Medscape.com.
Approval followed priority review and was based on efficacy and safety findings from the open-label PERSEUS trial involving 709 patients under age 70 years who were randomized to receive bortezomib, lenalidomide, and dexamethasone alone or in combination with daratumumab and hyaluronidase-fihj, according to the FDA.
Compared with bortezomib, lenalidomide, and dexamethasone alone, the addition of daratumumab and hyaluronidase-fihj resulted in a 60% reduction in the risk for disease progression or death (hazard ratio, 0.40). Median progression-free survival was not reached in either group.
Adverse reactions occurring in ≥ 20% of patients were peripheral neuropathy, fatigue, edema, pyrexia, upper respiratory infection, constipation, diarrhea, musculoskeletal pain, insomnia, and rash.
The recommended dosage for this indication is 1800 mg daratumumab and 30,000 units hyaluronidase, according to the full prescribing information.
Daratumumab and hyaluronidase-fihj, which was first approved in 2020, has a range of other indications in multiple myeloma.
A version of this article appeared on Medscape.com.
Approval followed priority review and was based on efficacy and safety findings from the open-label PERSEUS trial involving 709 patients under age 70 years who were randomized to receive bortezomib, lenalidomide, and dexamethasone alone or in combination with daratumumab and hyaluronidase-fihj, according to the FDA.
Compared with bortezomib, lenalidomide, and dexamethasone alone, the addition of daratumumab and hyaluronidase-fihj resulted in a 60% reduction in the risk for disease progression or death (hazard ratio, 0.40). Median progression-free survival was not reached in either group.
Adverse reactions occurring in ≥ 20% of patients were peripheral neuropathy, fatigue, edema, pyrexia, upper respiratory infection, constipation, diarrhea, musculoskeletal pain, insomnia, and rash.
The recommended dosage for this indication is 1800 mg daratumumab and 30,000 units hyaluronidase, according to the full prescribing information.
Daratumumab and hyaluronidase-fihj, which was first approved in 2020, has a range of other indications in multiple myeloma.
A version of this article appeared on Medscape.com.
Two Soliris Biosimilars Approved for PNH in the US
The first, Bkemv (eculizumab-aeeb, Amgen), was approved in May, and the second, Epysqli (eculizumab-aagh, Samsung Bioepis), was approved on July 22.
Soliris (eculizumab, Alexion) is an intravenous agent indicated for the treatment of PNH and atypical hemolytic uremic syndrome, as well as generalized myasthenia gravis and neuromyelitis optical spectrum disorder.
Both Bkemv and Epysqli are monoclonal antibodies that bind to complement protein C5 and have been approved previously in Europe. Availability for Bkemv in the United States will be delayed until March 1, 2025, under a patent settlement agreement between Alexion and Amgen.
The FDA approval for Bkemv was based on findings from the double-blind, active-controlled, phase 3 DAHLIA study showing similar efficacy, safety, and immunogenicity to Soliris in adults with PNH. The agents reduce the loss of red blood cells and, thus, the need for blood transfusion in patients with PNH.
The DAHLIA study included 42 adults with PNH who had previously received Soliris for at least 6 months. These patients were then randomized to receive Soliris or Bkemv in one of two sequences delivered across two treatment periods. For study period 1 (weeks 1-53), patients were randomized to either 900 mg of intravenous (IV) Bkemv or Soliris every 14 days for 52 weeks, and for study period 2, the patients crossed over to the other treatment for 26 weeks.
Comparable efficacy was observed in both the parallel and crossover comparisons, with geometric mean values for trough total and unbound concentrations of Bkemv and Soliris similar between the treatment groups at all time points tested. Control of intravascular hemolysis was measured by lactate dehydrogenase at week 27 for the parallel comparison and by time-adjusted area under the effect curve of lactate dehydrogenase from weeks 13 to 27, from weeks 39 to 53, and from weeks 65 to 79 for the crossover comparison.
The approval for Epysqli was on the basis of phase 3 trial findings, in which 50 patients with PNH were randomized to Epysqli or Soliris through week 26, after which the treatment was switched and provided until week 50. The findings showed a mean difference in lactate dehydrogenase level at week 26 between Epysqli and Soliris was 34.48 U/L, which fell within the predefined equivalence margin. The ratio of time-adjusted area under the effect curve of lactate dehydrogenase between the two was 1.08 — also within the predefined equivalence margin — indicating bioequivalence between the biosimilar and reference product.
Similar to Soliris, the prescribing information for Bkemv and Epysqli includes a boxed warning associated with an increased risk for serious meningococcal infections. Because of this risk, both biosimilars are only available under a Risk Evaluation and Mitigation Strategy program that prescribers are required to enroll in.
According to drugs.com, Soliris (10 mg/mL) IV solution comes to about $6878 for a supply of 30 milliliters; cost information for the biosimilars is not available yet.
A version of this article first appeared on Medscape.com.
The first, Bkemv (eculizumab-aeeb, Amgen), was approved in May, and the second, Epysqli (eculizumab-aagh, Samsung Bioepis), was approved on July 22.
Soliris (eculizumab, Alexion) is an intravenous agent indicated for the treatment of PNH and atypical hemolytic uremic syndrome, as well as generalized myasthenia gravis and neuromyelitis optical spectrum disorder.
Both Bkemv and Epysqli are monoclonal antibodies that bind to complement protein C5 and have been approved previously in Europe. Availability for Bkemv in the United States will be delayed until March 1, 2025, under a patent settlement agreement between Alexion and Amgen.
The FDA approval for Bkemv was based on findings from the double-blind, active-controlled, phase 3 DAHLIA study showing similar efficacy, safety, and immunogenicity to Soliris in adults with PNH. The agents reduce the loss of red blood cells and, thus, the need for blood transfusion in patients with PNH.
The DAHLIA study included 42 adults with PNH who had previously received Soliris for at least 6 months. These patients were then randomized to receive Soliris or Bkemv in one of two sequences delivered across two treatment periods. For study period 1 (weeks 1-53), patients were randomized to either 900 mg of intravenous (IV) Bkemv or Soliris every 14 days for 52 weeks, and for study period 2, the patients crossed over to the other treatment for 26 weeks.
Comparable efficacy was observed in both the parallel and crossover comparisons, with geometric mean values for trough total and unbound concentrations of Bkemv and Soliris similar between the treatment groups at all time points tested. Control of intravascular hemolysis was measured by lactate dehydrogenase at week 27 for the parallel comparison and by time-adjusted area under the effect curve of lactate dehydrogenase from weeks 13 to 27, from weeks 39 to 53, and from weeks 65 to 79 for the crossover comparison.
The approval for Epysqli was on the basis of phase 3 trial findings, in which 50 patients with PNH were randomized to Epysqli or Soliris through week 26, after which the treatment was switched and provided until week 50. The findings showed a mean difference in lactate dehydrogenase level at week 26 between Epysqli and Soliris was 34.48 U/L, which fell within the predefined equivalence margin. The ratio of time-adjusted area under the effect curve of lactate dehydrogenase between the two was 1.08 — also within the predefined equivalence margin — indicating bioequivalence between the biosimilar and reference product.
Similar to Soliris, the prescribing information for Bkemv and Epysqli includes a boxed warning associated with an increased risk for serious meningococcal infections. Because of this risk, both biosimilars are only available under a Risk Evaluation and Mitigation Strategy program that prescribers are required to enroll in.
According to drugs.com, Soliris (10 mg/mL) IV solution comes to about $6878 for a supply of 30 milliliters; cost information for the biosimilars is not available yet.
A version of this article first appeared on Medscape.com.
The first, Bkemv (eculizumab-aeeb, Amgen), was approved in May, and the second, Epysqli (eculizumab-aagh, Samsung Bioepis), was approved on July 22.
Soliris (eculizumab, Alexion) is an intravenous agent indicated for the treatment of PNH and atypical hemolytic uremic syndrome, as well as generalized myasthenia gravis and neuromyelitis optical spectrum disorder.
Both Bkemv and Epysqli are monoclonal antibodies that bind to complement protein C5 and have been approved previously in Europe. Availability for Bkemv in the United States will be delayed until March 1, 2025, under a patent settlement agreement between Alexion and Amgen.
The FDA approval for Bkemv was based on findings from the double-blind, active-controlled, phase 3 DAHLIA study showing similar efficacy, safety, and immunogenicity to Soliris in adults with PNH. The agents reduce the loss of red blood cells and, thus, the need for blood transfusion in patients with PNH.
The DAHLIA study included 42 adults with PNH who had previously received Soliris for at least 6 months. These patients were then randomized to receive Soliris or Bkemv in one of two sequences delivered across two treatment periods. For study period 1 (weeks 1-53), patients were randomized to either 900 mg of intravenous (IV) Bkemv or Soliris every 14 days for 52 weeks, and for study period 2, the patients crossed over to the other treatment for 26 weeks.
Comparable efficacy was observed in both the parallel and crossover comparisons, with geometric mean values for trough total and unbound concentrations of Bkemv and Soliris similar between the treatment groups at all time points tested. Control of intravascular hemolysis was measured by lactate dehydrogenase at week 27 for the parallel comparison and by time-adjusted area under the effect curve of lactate dehydrogenase from weeks 13 to 27, from weeks 39 to 53, and from weeks 65 to 79 for the crossover comparison.
The approval for Epysqli was on the basis of phase 3 trial findings, in which 50 patients with PNH were randomized to Epysqli or Soliris through week 26, after which the treatment was switched and provided until week 50. The findings showed a mean difference in lactate dehydrogenase level at week 26 between Epysqli and Soliris was 34.48 U/L, which fell within the predefined equivalence margin. The ratio of time-adjusted area under the effect curve of lactate dehydrogenase between the two was 1.08 — also within the predefined equivalence margin — indicating bioequivalence between the biosimilar and reference product.
Similar to Soliris, the prescribing information for Bkemv and Epysqli includes a boxed warning associated with an increased risk for serious meningococcal infections. Because of this risk, both biosimilars are only available under a Risk Evaluation and Mitigation Strategy program that prescribers are required to enroll in.
According to drugs.com, Soliris (10 mg/mL) IV solution comes to about $6878 for a supply of 30 milliliters; cost information for the biosimilars is not available yet.
A version of this article first appeared on Medscape.com.
AML: Shorter Venetoclax Course Shows Promise for Some
However, the azacitidine plus venetoclax therapy — the “7+7” regimen — was associated with lower platelet transfusion requirements and lower 8-week mortality, suggesting the regimen might be preferable in certain patient populations, Alexandre Bazinet, MD, of the University of Texas MD Anderson Cancer Center, Houston, reported at the American Society of Clinical Oncology (ASCO) annual meeting.
The composite complete remission (CRc) rate, including complete remission with or without complete count recovery, was identical at 72% among 82 patients treated with the 7+7 regimen and 166 treated with standard therapy, and the complete remission (CR) rate was 57% and 55%, respectively, Dr. Bazinet said.
The median number of cycles to first response was one in both groups, but 42% of responders in the 7+7 group required more than one cycle to achieve their first response, compared with just 1% of those in the standard therapy group, he noted, adding that the median number of cycles to achieve best response was two in the 7+7 group and one in the standard therapy group.
The mortality rate at 4 weeks was similar in the groups (2% vs 5% for 7+7 vs standard therapy), but at 8 weeks, the mortality rate was significantly higher in the standard therapy group (6% vs 16%, respectively). Median overall survival (OS) was 11.2 months versus 10.3 months, and median 2-year survival was 27.7% versus 33.6% in the groups, respectively.
Event-free survival was 6.5 versus 7.4 months, and 2-year event-free survival was 24.5% versus 27.0%, respectively.
Of note, fewer patients in the 7+7 group required platelet transfusions during cycle 1 (62% vs 77%) and the cycle 1 rates of neutropenic fever and red cell transfusion requirements were similar in the two treatment groups, Dr. Bazinet said.
Study participants were 82 adults from seven centers in France who received the 7+7 regimen, and 166 adults from MD Anderson who received standard therapy with a hypomethylating agent plus venetoclax doublets given for 21-28 days during induction. Preliminary data on the 7+7 regimen in patients from the French centers were reported previously and “suggested preserved efficacy with potentially less toxicity,” he noted.
“A hypomethylating agent plus venetoclax doublets are standard-of-care in patients with AML who are older or ineligible for chemotherapy due to comorbidities,” Dr. Bazinet explained, adding that although the venetoclax label calls for 28 days of drug per cycle, shorter courses of 14 to 21 days are commonly used.
These findings are limited by the retrospective study design and by small patient numbers in many subgroups, he said.
“In addition, the cohorts were heterogeneous, consisting of patients treated with a variety of different regimens and across multiple centers and countries. The distribution of FLT3-ITD and NRAS/KRAS mutations differed significantly between cohorts,” he explained, also noting that prophylactic azole use differed across the cohort. “Furthermore, analysis of the toxicity results was also limited by likely differing transfusion polices in different centers.”
Overall, however, the findings suggest that reducing the duration of venetoclax is safe and results in similar CRc rates, although responses may be faster with standard dosing, he said, adding that “7+7 is potentially less toxic and is attractive in patients who are more frail or at risk for complications.”
“Our data support further study of shorter venetoclax duration, within emerging triplet regimens in patients with intermediate or low predictive benefit to mitigate toxicity,” he concluded.
Dr. Bazinet reported having no disclosures.
However, the azacitidine plus venetoclax therapy — the “7+7” regimen — was associated with lower platelet transfusion requirements and lower 8-week mortality, suggesting the regimen might be preferable in certain patient populations, Alexandre Bazinet, MD, of the University of Texas MD Anderson Cancer Center, Houston, reported at the American Society of Clinical Oncology (ASCO) annual meeting.
The composite complete remission (CRc) rate, including complete remission with or without complete count recovery, was identical at 72% among 82 patients treated with the 7+7 regimen and 166 treated with standard therapy, and the complete remission (CR) rate was 57% and 55%, respectively, Dr. Bazinet said.
The median number of cycles to first response was one in both groups, but 42% of responders in the 7+7 group required more than one cycle to achieve their first response, compared with just 1% of those in the standard therapy group, he noted, adding that the median number of cycles to achieve best response was two in the 7+7 group and one in the standard therapy group.
The mortality rate at 4 weeks was similar in the groups (2% vs 5% for 7+7 vs standard therapy), but at 8 weeks, the mortality rate was significantly higher in the standard therapy group (6% vs 16%, respectively). Median overall survival (OS) was 11.2 months versus 10.3 months, and median 2-year survival was 27.7% versus 33.6% in the groups, respectively.
Event-free survival was 6.5 versus 7.4 months, and 2-year event-free survival was 24.5% versus 27.0%, respectively.
Of note, fewer patients in the 7+7 group required platelet transfusions during cycle 1 (62% vs 77%) and the cycle 1 rates of neutropenic fever and red cell transfusion requirements were similar in the two treatment groups, Dr. Bazinet said.
Study participants were 82 adults from seven centers in France who received the 7+7 regimen, and 166 adults from MD Anderson who received standard therapy with a hypomethylating agent plus venetoclax doublets given for 21-28 days during induction. Preliminary data on the 7+7 regimen in patients from the French centers were reported previously and “suggested preserved efficacy with potentially less toxicity,” he noted.
“A hypomethylating agent plus venetoclax doublets are standard-of-care in patients with AML who are older or ineligible for chemotherapy due to comorbidities,” Dr. Bazinet explained, adding that although the venetoclax label calls for 28 days of drug per cycle, shorter courses of 14 to 21 days are commonly used.
These findings are limited by the retrospective study design and by small patient numbers in many subgroups, he said.
“In addition, the cohorts were heterogeneous, consisting of patients treated with a variety of different regimens and across multiple centers and countries. The distribution of FLT3-ITD and NRAS/KRAS mutations differed significantly between cohorts,” he explained, also noting that prophylactic azole use differed across the cohort. “Furthermore, analysis of the toxicity results was also limited by likely differing transfusion polices in different centers.”
Overall, however, the findings suggest that reducing the duration of venetoclax is safe and results in similar CRc rates, although responses may be faster with standard dosing, he said, adding that “7+7 is potentially less toxic and is attractive in patients who are more frail or at risk for complications.”
“Our data support further study of shorter venetoclax duration, within emerging triplet regimens in patients with intermediate or low predictive benefit to mitigate toxicity,” he concluded.
Dr. Bazinet reported having no disclosures.
However, the azacitidine plus venetoclax therapy — the “7+7” regimen — was associated with lower platelet transfusion requirements and lower 8-week mortality, suggesting the regimen might be preferable in certain patient populations, Alexandre Bazinet, MD, of the University of Texas MD Anderson Cancer Center, Houston, reported at the American Society of Clinical Oncology (ASCO) annual meeting.
The composite complete remission (CRc) rate, including complete remission with or without complete count recovery, was identical at 72% among 82 patients treated with the 7+7 regimen and 166 treated with standard therapy, and the complete remission (CR) rate was 57% and 55%, respectively, Dr. Bazinet said.
The median number of cycles to first response was one in both groups, but 42% of responders in the 7+7 group required more than one cycle to achieve their first response, compared with just 1% of those in the standard therapy group, he noted, adding that the median number of cycles to achieve best response was two in the 7+7 group and one in the standard therapy group.
The mortality rate at 4 weeks was similar in the groups (2% vs 5% for 7+7 vs standard therapy), but at 8 weeks, the mortality rate was significantly higher in the standard therapy group (6% vs 16%, respectively). Median overall survival (OS) was 11.2 months versus 10.3 months, and median 2-year survival was 27.7% versus 33.6% in the groups, respectively.
Event-free survival was 6.5 versus 7.4 months, and 2-year event-free survival was 24.5% versus 27.0%, respectively.
Of note, fewer patients in the 7+7 group required platelet transfusions during cycle 1 (62% vs 77%) and the cycle 1 rates of neutropenic fever and red cell transfusion requirements were similar in the two treatment groups, Dr. Bazinet said.
Study participants were 82 adults from seven centers in France who received the 7+7 regimen, and 166 adults from MD Anderson who received standard therapy with a hypomethylating agent plus venetoclax doublets given for 21-28 days during induction. Preliminary data on the 7+7 regimen in patients from the French centers were reported previously and “suggested preserved efficacy with potentially less toxicity,” he noted.
“A hypomethylating agent plus venetoclax doublets are standard-of-care in patients with AML who are older or ineligible for chemotherapy due to comorbidities,” Dr. Bazinet explained, adding that although the venetoclax label calls for 28 days of drug per cycle, shorter courses of 14 to 21 days are commonly used.
These findings are limited by the retrospective study design and by small patient numbers in many subgroups, he said.
“In addition, the cohorts were heterogeneous, consisting of patients treated with a variety of different regimens and across multiple centers and countries. The distribution of FLT3-ITD and NRAS/KRAS mutations differed significantly between cohorts,” he explained, also noting that prophylactic azole use differed across the cohort. “Furthermore, analysis of the toxicity results was also limited by likely differing transfusion polices in different centers.”
Overall, however, the findings suggest that reducing the duration of venetoclax is safe and results in similar CRc rates, although responses may be faster with standard dosing, he said, adding that “7+7 is potentially less toxic and is attractive in patients who are more frail or at risk for complications.”
“Our data support further study of shorter venetoclax duration, within emerging triplet regimens in patients with intermediate or low predictive benefit to mitigate toxicity,” he concluded.
Dr. Bazinet reported having no disclosures.
FROM ASCO 2024
B-ALL: New Findings Confirm Efficacy of CAR T Product
These findings also highlight the favorable impact of CAR T persistence on treatment outcomes, and suggest that consolidative stem cell transplant (SCT) in R/R B-ALL patients treated with obe-cel does not improve outcomes, Elias Jabbour, MD, of the University of Texas MD Anderson Cancer Center, Houston, reported at the American Society of Clinical Oncology (ASCO) annual meeting.
The overall complete remission or complete remission with incomplete count recovery rate was 78% among 127 patients enrolled in the open-label, single-arm study and infused with obe-cel. Among the 99 patients who responded, 18 proceeded to consolidative SCT while in remission, Dr. Jabbour said, noting that all 18 who received SCT were in minimal residual disease (MRD)–negative remission at the time of transplant.
Of those 18 patients, 10 had ongoing CAR T persistence prior to transplant, he said.
At median follow-up of 21.5 months, 40% of responders were in ongoing remission without the need for subsequent consolidation with SCT or other therapy, whereas SCT did not appear to improve outcomes.
The median event-free survival (EFS) after censoring for transplant was 11.9 months, and the 12-month EFS rate was 49.5%. Without censoring for transplant, the EFS and 12-month EFS rate were 9.0 months and 44%, respectively.
“I would like to highlight that the time to transplant was 100 days, and of those 18 patients, all in MRD-negative status ... 80% relapsed or died from transplant-related complications,” Dr. Jabbour said.
Median overall survival (OS) without censoring for transplant was 15.6 months, and the 12-month OS rate was 61.1%. After censoring for transplant, the median OS and 12-month OS rate 23.8 months 63.7%, respectively. The survival curves were fully overlapping, indicating that transplant did not improve OS outcomes.
“Furthermore, when you look at the EFS and [OS], both show a potential plateau for a long-term outcome, and this trend is similar to what was reported in a phase 1 trial with 2 years of follow up and more,” Dr. Jabbour said.
The investigators also assessed the impact of loss of CAR T-cell persistence and loss of B-cell aplasia and found that “both ongoing CAR T-cell persistence and ongoing B-cell aplasia, were correlated with better event-free survival,” he noted, explaining that the risk of relapse was 2.7 times greater in those who lost versus maintained CAR T-cell persistence, and 1.7 times greater in those who lost versus maintained B-cell aplasia.
Among those with ongoing remission at 6 months, median EFS was 15.1 months in those who lost CAR T-cell persistence, whereas the median EFS was not reached in those who maintained CAR T-cell persistence.
Obe-cel is an autologous CAR T-cell product with a fast off-rate CD19 binder designed to mitigate immunotoxicity and improve CAR T-cell expansion and persistence, Dr. Jabbour said, noting that pooled efficacy and safety results from the FELIX phase 1b and 2 trials of heavily pretreated patients have previously been reported.
The findings support the use of obe-cel as a standard treatment in this patient population, and demonstrate that ongoing CAR T-cell persistence and B-cell aplasia are associated with improved EFS — without further consolidation therapy after treatment, he concluded.
This study was funded by Autolus Therapeutics. Dr. Jabbour disclosed ties with Abbvie, Ascentage Pharma, Adaptive Biotechnologies, Amgen, Astellas Pharma, Bristol-Myers Squibb, Genentech, Incyte, Pfizer, and Takeda.
These findings also highlight the favorable impact of CAR T persistence on treatment outcomes, and suggest that consolidative stem cell transplant (SCT) in R/R B-ALL patients treated with obe-cel does not improve outcomes, Elias Jabbour, MD, of the University of Texas MD Anderson Cancer Center, Houston, reported at the American Society of Clinical Oncology (ASCO) annual meeting.
The overall complete remission or complete remission with incomplete count recovery rate was 78% among 127 patients enrolled in the open-label, single-arm study and infused with obe-cel. Among the 99 patients who responded, 18 proceeded to consolidative SCT while in remission, Dr. Jabbour said, noting that all 18 who received SCT were in minimal residual disease (MRD)–negative remission at the time of transplant.
Of those 18 patients, 10 had ongoing CAR T persistence prior to transplant, he said.
At median follow-up of 21.5 months, 40% of responders were in ongoing remission without the need for subsequent consolidation with SCT or other therapy, whereas SCT did not appear to improve outcomes.
The median event-free survival (EFS) after censoring for transplant was 11.9 months, and the 12-month EFS rate was 49.5%. Without censoring for transplant, the EFS and 12-month EFS rate were 9.0 months and 44%, respectively.
“I would like to highlight that the time to transplant was 100 days, and of those 18 patients, all in MRD-negative status ... 80% relapsed or died from transplant-related complications,” Dr. Jabbour said.
Median overall survival (OS) without censoring for transplant was 15.6 months, and the 12-month OS rate was 61.1%. After censoring for transplant, the median OS and 12-month OS rate 23.8 months 63.7%, respectively. The survival curves were fully overlapping, indicating that transplant did not improve OS outcomes.
“Furthermore, when you look at the EFS and [OS], both show a potential plateau for a long-term outcome, and this trend is similar to what was reported in a phase 1 trial with 2 years of follow up and more,” Dr. Jabbour said.
The investigators also assessed the impact of loss of CAR T-cell persistence and loss of B-cell aplasia and found that “both ongoing CAR T-cell persistence and ongoing B-cell aplasia, were correlated with better event-free survival,” he noted, explaining that the risk of relapse was 2.7 times greater in those who lost versus maintained CAR T-cell persistence, and 1.7 times greater in those who lost versus maintained B-cell aplasia.
Among those with ongoing remission at 6 months, median EFS was 15.1 months in those who lost CAR T-cell persistence, whereas the median EFS was not reached in those who maintained CAR T-cell persistence.
Obe-cel is an autologous CAR T-cell product with a fast off-rate CD19 binder designed to mitigate immunotoxicity and improve CAR T-cell expansion and persistence, Dr. Jabbour said, noting that pooled efficacy and safety results from the FELIX phase 1b and 2 trials of heavily pretreated patients have previously been reported.
The findings support the use of obe-cel as a standard treatment in this patient population, and demonstrate that ongoing CAR T-cell persistence and B-cell aplasia are associated with improved EFS — without further consolidation therapy after treatment, he concluded.
This study was funded by Autolus Therapeutics. Dr. Jabbour disclosed ties with Abbvie, Ascentage Pharma, Adaptive Biotechnologies, Amgen, Astellas Pharma, Bristol-Myers Squibb, Genentech, Incyte, Pfizer, and Takeda.
These findings also highlight the favorable impact of CAR T persistence on treatment outcomes, and suggest that consolidative stem cell transplant (SCT) in R/R B-ALL patients treated with obe-cel does not improve outcomes, Elias Jabbour, MD, of the University of Texas MD Anderson Cancer Center, Houston, reported at the American Society of Clinical Oncology (ASCO) annual meeting.
The overall complete remission or complete remission with incomplete count recovery rate was 78% among 127 patients enrolled in the open-label, single-arm study and infused with obe-cel. Among the 99 patients who responded, 18 proceeded to consolidative SCT while in remission, Dr. Jabbour said, noting that all 18 who received SCT were in minimal residual disease (MRD)–negative remission at the time of transplant.
Of those 18 patients, 10 had ongoing CAR T persistence prior to transplant, he said.
At median follow-up of 21.5 months, 40% of responders were in ongoing remission without the need for subsequent consolidation with SCT or other therapy, whereas SCT did not appear to improve outcomes.
The median event-free survival (EFS) after censoring for transplant was 11.9 months, and the 12-month EFS rate was 49.5%. Without censoring for transplant, the EFS and 12-month EFS rate were 9.0 months and 44%, respectively.
“I would like to highlight that the time to transplant was 100 days, and of those 18 patients, all in MRD-negative status ... 80% relapsed or died from transplant-related complications,” Dr. Jabbour said.
Median overall survival (OS) without censoring for transplant was 15.6 months, and the 12-month OS rate was 61.1%. After censoring for transplant, the median OS and 12-month OS rate 23.8 months 63.7%, respectively. The survival curves were fully overlapping, indicating that transplant did not improve OS outcomes.
“Furthermore, when you look at the EFS and [OS], both show a potential plateau for a long-term outcome, and this trend is similar to what was reported in a phase 1 trial with 2 years of follow up and more,” Dr. Jabbour said.
The investigators also assessed the impact of loss of CAR T-cell persistence and loss of B-cell aplasia and found that “both ongoing CAR T-cell persistence and ongoing B-cell aplasia, were correlated with better event-free survival,” he noted, explaining that the risk of relapse was 2.7 times greater in those who lost versus maintained CAR T-cell persistence, and 1.7 times greater in those who lost versus maintained B-cell aplasia.
Among those with ongoing remission at 6 months, median EFS was 15.1 months in those who lost CAR T-cell persistence, whereas the median EFS was not reached in those who maintained CAR T-cell persistence.
Obe-cel is an autologous CAR T-cell product with a fast off-rate CD19 binder designed to mitigate immunotoxicity and improve CAR T-cell expansion and persistence, Dr. Jabbour said, noting that pooled efficacy and safety results from the FELIX phase 1b and 2 trials of heavily pretreated patients have previously been reported.
The findings support the use of obe-cel as a standard treatment in this patient population, and demonstrate that ongoing CAR T-cell persistence and B-cell aplasia are associated with improved EFS — without further consolidation therapy after treatment, he concluded.
This study was funded by Autolus Therapeutics. Dr. Jabbour disclosed ties with Abbvie, Ascentage Pharma, Adaptive Biotechnologies, Amgen, Astellas Pharma, Bristol-Myers Squibb, Genentech, Incyte, Pfizer, and Takeda.
FROM ASCO 2024
ESOPEC: FLOT Bests CROSS in Resectable Esophageal Cancer
The study results, presented as a late-breaking abstract at the annual meeting of the American Society of Clinical Oncology (ASCO), help settle a long-standing debate about whether chemotherapy with FLOT — 5-florouracil, leucovorin, oxaliplatin, and docetaxel — before and after surgery, or neoadjuvant radiation plus CROSS — carboplatin and paclitaxel — followed by surgery is the best approach.
There has been “considerable disagreement as to whether giving all adjuvant therapy upfront versus ‘sandwich’ adjuvant therapy before and after surgery is the better standard of care for locally advanced resectable esophageal cancer,” Jennifer Tseng, MD, of Boston Medical Center, Boston, said in an ASCO press release. This randomized clinical trial shows the sandwich approach “provides better outcomes.”
The practice-changing ESOPEC findings will have an important effect on the management of patients with resectable esophageal adenocarcinoma and gastroesophageal junction adenocarcinoma, but local and distant failures remain a challenge in this population, explained invited discussant Karyn A. Goodman, MD.
Advances since the initiation of ESOPEC — such as immunotherapy options and personalized strategies — suggest the esophageal adenocarcinoma story is still evolving, said Dr. Goodman, professor and vice chair of research and quality in the Department of Radiation Oncology at Icahn School of Medicine at Mount Sinai, New York.
The ESOPEC trial
Both the FLOT and CROSS regimens are established standards of care in resectable esophageal adenocarcinoma, and the choice of treatment has largely varied based on geographical location.
The current randomized, prospective, open-label ESOPEC trial, however, demonstrated that FLOT can prolong overall survival, first author Jens Hoeppner, MD, from the University of Bielefeld in Detmold, Germany, reported.
Overall, 438 patients with locally advanced, resectable esophageal adenocarcinoma recruited between February 2016 and April 2020 from 25 sites in Germany and randomized to either FLOT (n = 221) or CROSS (n = 217). The median age was 63 years, and most (89.3%) were men. Patients were followed until November 2023, and median follow-up was 55 months.
Patients in the FLOT arm received four cycles — one every 2 weeks for 8 weeks — followed by surgery 4-6 weeks later. FLOT cycles were reinitiated 4-6 weeks after surgery and given every 2 weeks for 8 weeks.
Those in the CROSS arm received one cycle per week of radiation therapy for 5 weeks plus carboplatin and paclitaxel followed by surgery 4-6 weeks after the last cycle.
Overall, 86% received both neoadjuvant therapy and surgery in the FLOT arm versus 82.9% in the CROSS group. Among these patients, 16.8% in the FLOT group achieved a pathological complete remission versus 10.0% in the CROSS arm.
In the intention-to-treat population, median overall survival was almost twice as long in the FLOT group — 66 months versus 37 months. At 3 years, those who received FLOT had a 30% lower risk of dying (hazard ratio [HR], 0.70), with 57.4% of patients alive at that point, compared with 50.7% patients in the CROSS arm.
The 5-year overall survival was 50.6% in the FLOT group versus 38.7% in the CROSS group.
Patients receiving FLOT also demonstrated improved progression-free survival (PFS), with a median PFS of 38 months versus 16 months. The 3-year PFS was 51.6% with FLOT versus 35.0% with CROSS (HR, 0.66). The exploratory subgroup analyses for sex, age, ECOG status, and clinical T and N stages also favored FLOT.
The 30-day postoperative mortality was 1.0% in the FLOT group and 1.7% in the CROSS group, and the 90-day postoperative mortality rate was 3.2% and 5.6%, respectively.
Based on these findings, perioperative chemotherapy with FLOT should be preferred over neoadjuvant chemoradiation with CROSS, Dr. Hoeppner concluded.
Dr. Goodman agreed, noting that, in the wake of ESOPEC, FLOT will likely be adopted as a more standard approach in the United States for patients who are fit. And, for patients who are not candidates for FLOT, CROSS is a reasonable option, she said.
But, she asked, does it really have to be an either/or situation?
Multiple studies, including Dr. Goodman’s 2021 Alliance/CALGB 80803 study, have demonstrated promising outcomes with combined modalities and adapting therapy based on treatment response. Several trials, for instance, are evaluating combining FLOT and CROSS, with some showing the approach is feasible and comes with manageable toxicity.
It’s also important to look outside of FLOT and CROSS. During ESOPEC, new approaches entered the treatment landscape, including the use of adjuvant immunotherapy following neoadjuvant chemoradiation and surgery for noncomplete response.
Take the CheckMate 577 study, which found that adjuvant nivolumab immunotherapy after preoperative CROSS and surgery significantly reduced metastatic recurrence and doubled disease-free survival in patients who did not achieve a complete response. This approach is now a standard of care for those patients.
FLOT plus neoadjuvant nivolumab may also be a viable option, Dr. Goodman noted, but we haven’t yet seen “any benefit in survival with the combo of chemotherapy and immunotherapy for resectable esophago-gastric cancer.”
Further studies are needed to evaluate the synergy of immunotherapy and radiotherapy. The next chapter of the esophageal adenocarcinoma story may feature a “best-of-both-worlds” approach that combines induction chemotherapy, followed by personalized chemoradiation, surgery, and potentially adjuvant immunotherapy, Dr. Goodman explained.
While the ESOPEC findings are impressive, the 5-year overall survival of only 50% is still suboptimal, she noted. “Given the poor prognosis with this disease, we need to continue to develop clinical trials to identify better targets, novel treatment combinations, and select patients that will respond best to specific treatment.”
ESOPEC was funded by the Deutsche Forschungsgemeinschaft (German Research Foundation). Dr. Hoeppner reported receiving travel, accommodations, and expenses from Intuitive Surgical. Dr. Goodman reported a relationship with the National Cancer Institute and consulting or advisory roles for Novartis, Philips Healthcare, RenovoRX, and Roche/Genentech.
A version of this article first appeared on Medscape.com.
The study results, presented as a late-breaking abstract at the annual meeting of the American Society of Clinical Oncology (ASCO), help settle a long-standing debate about whether chemotherapy with FLOT — 5-florouracil, leucovorin, oxaliplatin, and docetaxel — before and after surgery, or neoadjuvant radiation plus CROSS — carboplatin and paclitaxel — followed by surgery is the best approach.
There has been “considerable disagreement as to whether giving all adjuvant therapy upfront versus ‘sandwich’ adjuvant therapy before and after surgery is the better standard of care for locally advanced resectable esophageal cancer,” Jennifer Tseng, MD, of Boston Medical Center, Boston, said in an ASCO press release. This randomized clinical trial shows the sandwich approach “provides better outcomes.”
The practice-changing ESOPEC findings will have an important effect on the management of patients with resectable esophageal adenocarcinoma and gastroesophageal junction adenocarcinoma, but local and distant failures remain a challenge in this population, explained invited discussant Karyn A. Goodman, MD.
Advances since the initiation of ESOPEC — such as immunotherapy options and personalized strategies — suggest the esophageal adenocarcinoma story is still evolving, said Dr. Goodman, professor and vice chair of research and quality in the Department of Radiation Oncology at Icahn School of Medicine at Mount Sinai, New York.
The ESOPEC trial
Both the FLOT and CROSS regimens are established standards of care in resectable esophageal adenocarcinoma, and the choice of treatment has largely varied based on geographical location.
The current randomized, prospective, open-label ESOPEC trial, however, demonstrated that FLOT can prolong overall survival, first author Jens Hoeppner, MD, from the University of Bielefeld in Detmold, Germany, reported.
Overall, 438 patients with locally advanced, resectable esophageal adenocarcinoma recruited between February 2016 and April 2020 from 25 sites in Germany and randomized to either FLOT (n = 221) or CROSS (n = 217). The median age was 63 years, and most (89.3%) were men. Patients were followed until November 2023, and median follow-up was 55 months.
Patients in the FLOT arm received four cycles — one every 2 weeks for 8 weeks — followed by surgery 4-6 weeks later. FLOT cycles were reinitiated 4-6 weeks after surgery and given every 2 weeks for 8 weeks.
Those in the CROSS arm received one cycle per week of radiation therapy for 5 weeks plus carboplatin and paclitaxel followed by surgery 4-6 weeks after the last cycle.
Overall, 86% received both neoadjuvant therapy and surgery in the FLOT arm versus 82.9% in the CROSS group. Among these patients, 16.8% in the FLOT group achieved a pathological complete remission versus 10.0% in the CROSS arm.
In the intention-to-treat population, median overall survival was almost twice as long in the FLOT group — 66 months versus 37 months. At 3 years, those who received FLOT had a 30% lower risk of dying (hazard ratio [HR], 0.70), with 57.4% of patients alive at that point, compared with 50.7% patients in the CROSS arm.
The 5-year overall survival was 50.6% in the FLOT group versus 38.7% in the CROSS group.
Patients receiving FLOT also demonstrated improved progression-free survival (PFS), with a median PFS of 38 months versus 16 months. The 3-year PFS was 51.6% with FLOT versus 35.0% with CROSS (HR, 0.66). The exploratory subgroup analyses for sex, age, ECOG status, and clinical T and N stages also favored FLOT.
The 30-day postoperative mortality was 1.0% in the FLOT group and 1.7% in the CROSS group, and the 90-day postoperative mortality rate was 3.2% and 5.6%, respectively.
Based on these findings, perioperative chemotherapy with FLOT should be preferred over neoadjuvant chemoradiation with CROSS, Dr. Hoeppner concluded.
Dr. Goodman agreed, noting that, in the wake of ESOPEC, FLOT will likely be adopted as a more standard approach in the United States for patients who are fit. And, for patients who are not candidates for FLOT, CROSS is a reasonable option, she said.
But, she asked, does it really have to be an either/or situation?
Multiple studies, including Dr. Goodman’s 2021 Alliance/CALGB 80803 study, have demonstrated promising outcomes with combined modalities and adapting therapy based on treatment response. Several trials, for instance, are evaluating combining FLOT and CROSS, with some showing the approach is feasible and comes with manageable toxicity.
It’s also important to look outside of FLOT and CROSS. During ESOPEC, new approaches entered the treatment landscape, including the use of adjuvant immunotherapy following neoadjuvant chemoradiation and surgery for noncomplete response.
Take the CheckMate 577 study, which found that adjuvant nivolumab immunotherapy after preoperative CROSS and surgery significantly reduced metastatic recurrence and doubled disease-free survival in patients who did not achieve a complete response. This approach is now a standard of care for those patients.
FLOT plus neoadjuvant nivolumab may also be a viable option, Dr. Goodman noted, but we haven’t yet seen “any benefit in survival with the combo of chemotherapy and immunotherapy for resectable esophago-gastric cancer.”
Further studies are needed to evaluate the synergy of immunotherapy and radiotherapy. The next chapter of the esophageal adenocarcinoma story may feature a “best-of-both-worlds” approach that combines induction chemotherapy, followed by personalized chemoradiation, surgery, and potentially adjuvant immunotherapy, Dr. Goodman explained.
While the ESOPEC findings are impressive, the 5-year overall survival of only 50% is still suboptimal, she noted. “Given the poor prognosis with this disease, we need to continue to develop clinical trials to identify better targets, novel treatment combinations, and select patients that will respond best to specific treatment.”
ESOPEC was funded by the Deutsche Forschungsgemeinschaft (German Research Foundation). Dr. Hoeppner reported receiving travel, accommodations, and expenses from Intuitive Surgical. Dr. Goodman reported a relationship with the National Cancer Institute and consulting or advisory roles for Novartis, Philips Healthcare, RenovoRX, and Roche/Genentech.
A version of this article first appeared on Medscape.com.
The study results, presented as a late-breaking abstract at the annual meeting of the American Society of Clinical Oncology (ASCO), help settle a long-standing debate about whether chemotherapy with FLOT — 5-florouracil, leucovorin, oxaliplatin, and docetaxel — before and after surgery, or neoadjuvant radiation plus CROSS — carboplatin and paclitaxel — followed by surgery is the best approach.
There has been “considerable disagreement as to whether giving all adjuvant therapy upfront versus ‘sandwich’ adjuvant therapy before and after surgery is the better standard of care for locally advanced resectable esophageal cancer,” Jennifer Tseng, MD, of Boston Medical Center, Boston, said in an ASCO press release. This randomized clinical trial shows the sandwich approach “provides better outcomes.”
The practice-changing ESOPEC findings will have an important effect on the management of patients with resectable esophageal adenocarcinoma and gastroesophageal junction adenocarcinoma, but local and distant failures remain a challenge in this population, explained invited discussant Karyn A. Goodman, MD.
Advances since the initiation of ESOPEC — such as immunotherapy options and personalized strategies — suggest the esophageal adenocarcinoma story is still evolving, said Dr. Goodman, professor and vice chair of research and quality in the Department of Radiation Oncology at Icahn School of Medicine at Mount Sinai, New York.
The ESOPEC trial
Both the FLOT and CROSS regimens are established standards of care in resectable esophageal adenocarcinoma, and the choice of treatment has largely varied based on geographical location.
The current randomized, prospective, open-label ESOPEC trial, however, demonstrated that FLOT can prolong overall survival, first author Jens Hoeppner, MD, from the University of Bielefeld in Detmold, Germany, reported.
Overall, 438 patients with locally advanced, resectable esophageal adenocarcinoma recruited between February 2016 and April 2020 from 25 sites in Germany and randomized to either FLOT (n = 221) or CROSS (n = 217). The median age was 63 years, and most (89.3%) were men. Patients were followed until November 2023, and median follow-up was 55 months.
Patients in the FLOT arm received four cycles — one every 2 weeks for 8 weeks — followed by surgery 4-6 weeks later. FLOT cycles were reinitiated 4-6 weeks after surgery and given every 2 weeks for 8 weeks.
Those in the CROSS arm received one cycle per week of radiation therapy for 5 weeks plus carboplatin and paclitaxel followed by surgery 4-6 weeks after the last cycle.
Overall, 86% received both neoadjuvant therapy and surgery in the FLOT arm versus 82.9% in the CROSS group. Among these patients, 16.8% in the FLOT group achieved a pathological complete remission versus 10.0% in the CROSS arm.
In the intention-to-treat population, median overall survival was almost twice as long in the FLOT group — 66 months versus 37 months. At 3 years, those who received FLOT had a 30% lower risk of dying (hazard ratio [HR], 0.70), with 57.4% of patients alive at that point, compared with 50.7% patients in the CROSS arm.
The 5-year overall survival was 50.6% in the FLOT group versus 38.7% in the CROSS group.
Patients receiving FLOT also demonstrated improved progression-free survival (PFS), with a median PFS of 38 months versus 16 months. The 3-year PFS was 51.6% with FLOT versus 35.0% with CROSS (HR, 0.66). The exploratory subgroup analyses for sex, age, ECOG status, and clinical T and N stages also favored FLOT.
The 30-day postoperative mortality was 1.0% in the FLOT group and 1.7% in the CROSS group, and the 90-day postoperative mortality rate was 3.2% and 5.6%, respectively.
Based on these findings, perioperative chemotherapy with FLOT should be preferred over neoadjuvant chemoradiation with CROSS, Dr. Hoeppner concluded.
Dr. Goodman agreed, noting that, in the wake of ESOPEC, FLOT will likely be adopted as a more standard approach in the United States for patients who are fit. And, for patients who are not candidates for FLOT, CROSS is a reasonable option, she said.
But, she asked, does it really have to be an either/or situation?
Multiple studies, including Dr. Goodman’s 2021 Alliance/CALGB 80803 study, have demonstrated promising outcomes with combined modalities and adapting therapy based on treatment response. Several trials, for instance, are evaluating combining FLOT and CROSS, with some showing the approach is feasible and comes with manageable toxicity.
It’s also important to look outside of FLOT and CROSS. During ESOPEC, new approaches entered the treatment landscape, including the use of adjuvant immunotherapy following neoadjuvant chemoradiation and surgery for noncomplete response.
Take the CheckMate 577 study, which found that adjuvant nivolumab immunotherapy after preoperative CROSS and surgery significantly reduced metastatic recurrence and doubled disease-free survival in patients who did not achieve a complete response. This approach is now a standard of care for those patients.
FLOT plus neoadjuvant nivolumab may also be a viable option, Dr. Goodman noted, but we haven’t yet seen “any benefit in survival with the combo of chemotherapy and immunotherapy for resectable esophago-gastric cancer.”
Further studies are needed to evaluate the synergy of immunotherapy and radiotherapy. The next chapter of the esophageal adenocarcinoma story may feature a “best-of-both-worlds” approach that combines induction chemotherapy, followed by personalized chemoradiation, surgery, and potentially adjuvant immunotherapy, Dr. Goodman explained.
While the ESOPEC findings are impressive, the 5-year overall survival of only 50% is still suboptimal, she noted. “Given the poor prognosis with this disease, we need to continue to develop clinical trials to identify better targets, novel treatment combinations, and select patients that will respond best to specific treatment.”
ESOPEC was funded by the Deutsche Forschungsgemeinschaft (German Research Foundation). Dr. Hoeppner reported receiving travel, accommodations, and expenses from Intuitive Surgical. Dr. Goodman reported a relationship with the National Cancer Institute and consulting or advisory roles for Novartis, Philips Healthcare, RenovoRX, and Roche/Genentech.
A version of this article first appeared on Medscape.com.
FROM ASCO 2024
FDA Approves Adagrasib for KRAS G12C–Mutated CRC
More specifically, the highly selective and potent small-molecule KRAS G12C inhibitor is now indicated for patients with locally advanced or metastatic KRAS G12C–mutated CRC — as determined by an FDA-approved test — who previously received fluoropyrimidine-, oxaliplatin-, and irinotecan-based chemotherapy and, if eligible, a vascular endothelial growth factor inhibitor, according to an FDA press release.
The agent is the first KRAS inhibitor approved for CRC. Adagrasib was previously granted accelerated approval for KRAS G12C–mutated non–small cell lung cancer, based on findings from the KRYSTAL-12 trial.
The CRC approval was based on findings from the KRYSTAL-1 multicenter, single-arm expansion cohort trial, which reported an overall response rate of 34% among 94 enrolled patients.
All responses were partial responses, and the median duration of response was 5.8 months, with 31% of responding patients experiencing a duration of response of at least 6 months.
Patients received 600 mg of adagrasib twice daily plus cetuximab administered in either a biweekly 500 mg/m2 dose or an initial dose of 400 mg/m2 followed by weekly doses of 250 mg/m2. Those who discontinued adagrasib also had to discontinue cetuximab, but adagrasib could be continued if cetuximab was discontinued.
The recommended adagrasib dose is 600 mg given orally twice daily until disease progression or unacceptable toxicity, according to the prescribing information.
Adverse reactions occurring in at least 20% of treated patients included rash, nausea, diarrhea, vomiting, fatigue, musculoskeletal pain, hepatotoxicity, headache, dry skin, abdominal pain, decreased appetite, edema, anemia, cough, dizziness, constipation, and peripheral neuropathy.
“Patients with KRAS G12C–mutated colorectal cancer have historically faced poor prognoses and remain in need of additional treatment options,” Scott Kopetz, MD, PhD, of the University of Texas MD Anderson Cancer Center, Houston, stated earlier this year in a press release announcing the FDA’s decision to accept the drug application for priority review.
“Although KRAS had previously been considered ‘undruggable,’ these data from KRYSTAL-1 reinforce the potential benefit of adagrasib for these specific patients,” Dr. Kopetz said in the statement from Bristol Myers Squibb, which acquired Mirati Therapeutics in 2023.
A version of this article first appeared on Medscape.com.
More specifically, the highly selective and potent small-molecule KRAS G12C inhibitor is now indicated for patients with locally advanced or metastatic KRAS G12C–mutated CRC — as determined by an FDA-approved test — who previously received fluoropyrimidine-, oxaliplatin-, and irinotecan-based chemotherapy and, if eligible, a vascular endothelial growth factor inhibitor, according to an FDA press release.
The agent is the first KRAS inhibitor approved for CRC. Adagrasib was previously granted accelerated approval for KRAS G12C–mutated non–small cell lung cancer, based on findings from the KRYSTAL-12 trial.
The CRC approval was based on findings from the KRYSTAL-1 multicenter, single-arm expansion cohort trial, which reported an overall response rate of 34% among 94 enrolled patients.
All responses were partial responses, and the median duration of response was 5.8 months, with 31% of responding patients experiencing a duration of response of at least 6 months.
Patients received 600 mg of adagrasib twice daily plus cetuximab administered in either a biweekly 500 mg/m2 dose or an initial dose of 400 mg/m2 followed by weekly doses of 250 mg/m2. Those who discontinued adagrasib also had to discontinue cetuximab, but adagrasib could be continued if cetuximab was discontinued.
The recommended adagrasib dose is 600 mg given orally twice daily until disease progression or unacceptable toxicity, according to the prescribing information.
Adverse reactions occurring in at least 20% of treated patients included rash, nausea, diarrhea, vomiting, fatigue, musculoskeletal pain, hepatotoxicity, headache, dry skin, abdominal pain, decreased appetite, edema, anemia, cough, dizziness, constipation, and peripheral neuropathy.
“Patients with KRAS G12C–mutated colorectal cancer have historically faced poor prognoses and remain in need of additional treatment options,” Scott Kopetz, MD, PhD, of the University of Texas MD Anderson Cancer Center, Houston, stated earlier this year in a press release announcing the FDA’s decision to accept the drug application for priority review.
“Although KRAS had previously been considered ‘undruggable,’ these data from KRYSTAL-1 reinforce the potential benefit of adagrasib for these specific patients,” Dr. Kopetz said in the statement from Bristol Myers Squibb, which acquired Mirati Therapeutics in 2023.
A version of this article first appeared on Medscape.com.
More specifically, the highly selective and potent small-molecule KRAS G12C inhibitor is now indicated for patients with locally advanced or metastatic KRAS G12C–mutated CRC — as determined by an FDA-approved test — who previously received fluoropyrimidine-, oxaliplatin-, and irinotecan-based chemotherapy and, if eligible, a vascular endothelial growth factor inhibitor, according to an FDA press release.
The agent is the first KRAS inhibitor approved for CRC. Adagrasib was previously granted accelerated approval for KRAS G12C–mutated non–small cell lung cancer, based on findings from the KRYSTAL-12 trial.
The CRC approval was based on findings from the KRYSTAL-1 multicenter, single-arm expansion cohort trial, which reported an overall response rate of 34% among 94 enrolled patients.
All responses were partial responses, and the median duration of response was 5.8 months, with 31% of responding patients experiencing a duration of response of at least 6 months.
Patients received 600 mg of adagrasib twice daily plus cetuximab administered in either a biweekly 500 mg/m2 dose or an initial dose of 400 mg/m2 followed by weekly doses of 250 mg/m2. Those who discontinued adagrasib also had to discontinue cetuximab, but adagrasib could be continued if cetuximab was discontinued.
The recommended adagrasib dose is 600 mg given orally twice daily until disease progression or unacceptable toxicity, according to the prescribing information.
Adverse reactions occurring in at least 20% of treated patients included rash, nausea, diarrhea, vomiting, fatigue, musculoskeletal pain, hepatotoxicity, headache, dry skin, abdominal pain, decreased appetite, edema, anemia, cough, dizziness, constipation, and peripheral neuropathy.
“Patients with KRAS G12C–mutated colorectal cancer have historically faced poor prognoses and remain in need of additional treatment options,” Scott Kopetz, MD, PhD, of the University of Texas MD Anderson Cancer Center, Houston, stated earlier this year in a press release announcing the FDA’s decision to accept the drug application for priority review.
“Although KRAS had previously been considered ‘undruggable,’ these data from KRYSTAL-1 reinforce the potential benefit of adagrasib for these specific patients,” Dr. Kopetz said in the statement from Bristol Myers Squibb, which acquired Mirati Therapeutics in 2023.
A version of this article first appeared on Medscape.com.
FDA Expands Pembrolizumab Approval for Endometrial Cancer
The Food and Drug Administration has expanded the indication for pembrolizumab (Keytruda, Merck) to include the use of the targeted immunotherapy agent plus chemotherapy followed by single-agent pembrolizumab in adults with primary advanced or recurrent endometrial cancer.
Approval in this setting was granted following priority review and was based on efficacy demonstrated in the randomized, placebo-controlled, phase 3 KEYNOTE-868/NRG-GY018 trial. The multicenter trial showed improved progression-free survival (PFS) with chemotherapy plus pembrolizumab versus chemotherapy plus placebo in patients with stage 3 or 4 disease or stage IVB recurrent disease in two cohorts: 222 patients with mismatch repair (MMR) deficiency, and 588 patients with MMR proficiency.
Among the MMR-deficient patients, median PFS was not reached in the treatment arm and was 6.5 months in the control arm (hazard ratio, 0.30). Among the MMR-proficient patients, the median PFS was 11.1 versus 8.5 months in the study arms, respectively (HR, 0.60), according to an FDA press release.
Patients in both cohorts were randomized 1:1 to receive 200 mg of either pembrolizumab or placebo every 3 weeks, followed by paclitaxel at a dose of 175 mg/m2 and carboplatin at a dose of AUC 5 mg/mL/min for six cycles and then 400 mg of pembrolizumab or placebo every 6 weeks for up to 14 cycles.
“Adverse reactions associated with pembrolizumab and chemotherapy were generally similar to those previously reported for pembrolizumab or chemotherapy with the exception of a higher incidence of rash,” the FDA noted.
According to the full prescribing information for pembrolizumab, the recommended dose is 200 mg every 3 weeks or 400 mg every 6 weeks until disease progression, unacceptable toxicity, or for up to 24 months.
A version of this article first appeared on Medscape.com.
The Food and Drug Administration has expanded the indication for pembrolizumab (Keytruda, Merck) to include the use of the targeted immunotherapy agent plus chemotherapy followed by single-agent pembrolizumab in adults with primary advanced or recurrent endometrial cancer.
Approval in this setting was granted following priority review and was based on efficacy demonstrated in the randomized, placebo-controlled, phase 3 KEYNOTE-868/NRG-GY018 trial. The multicenter trial showed improved progression-free survival (PFS) with chemotherapy plus pembrolizumab versus chemotherapy plus placebo in patients with stage 3 or 4 disease or stage IVB recurrent disease in two cohorts: 222 patients with mismatch repair (MMR) deficiency, and 588 patients with MMR proficiency.
Among the MMR-deficient patients, median PFS was not reached in the treatment arm and was 6.5 months in the control arm (hazard ratio, 0.30). Among the MMR-proficient patients, the median PFS was 11.1 versus 8.5 months in the study arms, respectively (HR, 0.60), according to an FDA press release.
Patients in both cohorts were randomized 1:1 to receive 200 mg of either pembrolizumab or placebo every 3 weeks, followed by paclitaxel at a dose of 175 mg/m2 and carboplatin at a dose of AUC 5 mg/mL/min for six cycles and then 400 mg of pembrolizumab or placebo every 6 weeks for up to 14 cycles.
“Adverse reactions associated with pembrolizumab and chemotherapy were generally similar to those previously reported for pembrolizumab or chemotherapy with the exception of a higher incidence of rash,” the FDA noted.
According to the full prescribing information for pembrolizumab, the recommended dose is 200 mg every 3 weeks or 400 mg every 6 weeks until disease progression, unacceptable toxicity, or for up to 24 months.
A version of this article first appeared on Medscape.com.
The Food and Drug Administration has expanded the indication for pembrolizumab (Keytruda, Merck) to include the use of the targeted immunotherapy agent plus chemotherapy followed by single-agent pembrolizumab in adults with primary advanced or recurrent endometrial cancer.
Approval in this setting was granted following priority review and was based on efficacy demonstrated in the randomized, placebo-controlled, phase 3 KEYNOTE-868/NRG-GY018 trial. The multicenter trial showed improved progression-free survival (PFS) with chemotherapy plus pembrolizumab versus chemotherapy plus placebo in patients with stage 3 or 4 disease or stage IVB recurrent disease in two cohorts: 222 patients with mismatch repair (MMR) deficiency, and 588 patients with MMR proficiency.
Among the MMR-deficient patients, median PFS was not reached in the treatment arm and was 6.5 months in the control arm (hazard ratio, 0.30). Among the MMR-proficient patients, the median PFS was 11.1 versus 8.5 months in the study arms, respectively (HR, 0.60), according to an FDA press release.
Patients in both cohorts were randomized 1:1 to receive 200 mg of either pembrolizumab or placebo every 3 weeks, followed by paclitaxel at a dose of 175 mg/m2 and carboplatin at a dose of AUC 5 mg/mL/min for six cycles and then 400 mg of pembrolizumab or placebo every 6 weeks for up to 14 cycles.
“Adverse reactions associated with pembrolizumab and chemotherapy were generally similar to those previously reported for pembrolizumab or chemotherapy with the exception of a higher incidence of rash,” the FDA noted.
According to the full prescribing information for pembrolizumab, the recommended dose is 200 mg every 3 weeks or 400 mg every 6 weeks until disease progression, unacceptable toxicity, or for up to 24 months.
A version of this article first appeared on Medscape.com.