First-Line Treatment With Merck’s KEYTRUDA® (pembrolizumab) Doubled Five-Year Survival Rate (31.9%) Versus Chemotherapy (16.3%) in Certain Patients With Metastatic Non-Small Cell Lung Cancer Whose Tumors Express PD-L1 (TPS >50%) – The Baytown Sun


Merck (NYSE: MRK), known as MSD outside the United States and Canada, today announced five-year survival results from the pivotal Phase 3 KEYNOTE-024 trial, which demonstrated a sustained, long-term survival benefit and durable responses with KEYTRUDA, Merck’s anti-PD-1 therapy, versus chemotherapy as first-line treatment in 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. At five years, the overall survival (OS) rate was twice as high for patients who received KEYTRUDA (31.9%; n=154) versus chemotherapy (16.3%; n=151). KEYTRUDA also reduced the risk of death by 38% (HR=0.62 [95% CI, 0.48-0.81) versus chemotherapy, with a median OS of 26.3 versus 13.4 months. Results from KEYNOTE-024 represent the longest follow-up and first-ever five-year survival data for an immunotherapy in a randomized Phase 3 study for the first-line treatment of NSCLC.

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