Positive Data on Keytruda in Ovarian Cancer: Merck

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Merck says its Keytruda Phase 3 KEYNOTE-B96 trial, also known as ENGOT-ov65, met its primary endpoint of progression-free survival (PFS) for treating patients with platinum-resistant recurrent ovarian cancer whose tumors expressed PD-L1. The study is evaluating Keytruda (pembrolizumab) in combination with chemotherapy (paclitaxel) with or without bevacizumab (Genentech’s Avastin) for these patients. The company says the study also met a secondary endpoint of overall survival (OS) in patients whose tumors express PD-L1, adding that the trial is continuing and OS will be evaluated in the full study population during a future analysis.

“This marks the first time a Keytruda-based regimen has shown the ability to help certain patients with platinum-resistant ovarian cancer live longer, and the first time an immune checkpoint inhibitor-based regimen has demonstrated an overall survival benefit in ovarian cancer,” the company says.

Additionally, the study showed that Keytruda’s safety profile was consistent with that observed in previously reported studies, with no new safety signals being identified, according to Merck. Results will be presented at an upcoming medical meeting and shared with regulatory authorities worldwide, it says.

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