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Merck Announces Phase 3 KEYNOTE-355 Trial Met Primary Endpoint of Overall Survival (OS) in Patients with Metastatic Triple-Negative Breast Cancer Whose Tumors Expressed PD-L1 (CPS ≥10)
July 27, 2021 6:45 AM EDTKEYTRUDA Is the First Anti-PD-1 Therapy in Combination With Chemotherapy to Show Statistically Significant OS for This Patient Population
KENILWORTH, N.J.--(BUSINESS WIRE)-- Merck (NYSE: MRK), known as MSD outside the United States and Canada, today announced positive overall survival (OS) results from the pivotal Phase 3 KEYNOTE-355 trial evaluating KEYTRUDA, Mercks anti-PD-1 therapy, in combination with chemotherapy for the treatment of patients with metastatic triple-negative breast cancer (mTNBC). Findings from the final analysis show first-line treatment with KEYTRUDA in combination with chemotherapy (nab-paclitaxel, paclitaxel or gemcitabine/carboplatin) demonstrated... More
