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Merck’s KEYTRUDA® (pembrolizumab) Plus Chemotherapy Before Surgery and Continued as a Single Agent After Surgery Reduced the Risk of Event-Free Survival Events by 42% Versus Pre-Operative Chemotherapy in Resectable Stage II, IIIA or IIIB NSCLC

Published: 2023-06-03 13:00:00 ET
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Based on a subgroup analysis, improvement in event-free survival (EFS) with the KEYTRUDA-based regimen was consistent across all PD-L1 expression subgroups, histology and stage

Exploratory subgroup analysis showed a reduction in EFS events with the KEYTRUDA perioperative regimen for patients with or without pathological complete response (pCR) compared with the chemotherapy-placebo regimen

KEYNOTE-671 is the eighth positive pivotal study evaluating a KEYTRUDA-based regimen in earlier stages of cancer and the seventh positive pivotal study in lung cancer

RAHWAY, N.J.--(BUSINESS WIRE)-- Merck (NYSE: MRK), known as MSD outside of the United States and Canada, today announced positive results from the pivotal Phase 3 KEYNOTE-671 trial evaluating KEYTRUDA, Merck’s anti-PD-1 therapy, as a perioperative treatment regimen, which includes treatment before surgery (neoadjuvant) and after surgery (adjuvant), for patients with resectable stage II, IIIA or IIIB non-small cell lung cancer (NSCLC). After a median follow-up of 25.2 months, neoadjuvant KEYTRUDA plus chemotherapy followed by resection and adjuvant single-agent KEYTRUDA significantly improved EFS, reducing the risk of disease recurrence, progression or death by 42% (HR=0.58 [95% CI, 0.46-0.72]; p