KENILWORTH, N.J.--(BUSINESS WIRE)-- Merck Announces KEYNOTE-598 Trial Evaluating KEYTRUDA (pembrolizumab) in Combination With Ipilimumab Versus KEYTRUDA Monotherapy in Certain Patients With Metastatic Non-Small Cell Lung Cancer To Stop for Futility and Patients to Discontinue Ipilimumab Merck (NYSE: MRK), known as MSD outside the United States and Canada, today announced that it will be stopping KEYNOTE-598, a Phase 3 trial investigating KEYTRUDA, Mercks anti-PD-1 therapy, in combination with ipilimumab (Yervoy), compared with KEYTRUDA monotherapy, for the first-line treatment of patients with metastatic non-small cell lung cancer (NSCLC) whose tumors express PD-L1 (tumor proportion score [TPS] 50%) with no EGFR or ALK genomic tumor aberrations. Merck is discontinuing the study following the recommendation of an independent Data Monitoring Committee (DMC), which determined the benefit/risk profile of the combination did not support continuing the trial
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