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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.

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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.

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