Efficacy and Safety of Pembrolizumab (MK-3475) With Platinum Doublet Chemotherapy as Neoadjuvant/Adjuvant Therapy for Participants With Resectable Stage II, IIIA, and Resectable IIIB (T3-4N2) Non-small Cell Lung Cancer (MK-3475-671/KEYNOTE-671)

• Status: Recruiting
• Trial end date: 2026-06-29

Summary

This trial will evaluate the safety and efficacy of pembrolizumab (MK-3475) in combination with platinum doublet neoadjuvant chemotherapy (NAC) before surgery [neoadjuvant phase], followed by pembrolizumab alone after surgery [adjuvant phase] in participants with resectable stage II, IIIA, and resectable IIIB (T3-4N2) non-small cell lung cancer (NSCLC). The primary hypotheses of this study are that neoadjuvant pembrolizumab (vs. placebo) in combination with NAC, followed by surgery and adjuvant pembrolizumab (vs. placebo) will improve: 1) event free survival (EFS) by biopsy assessed by blinded central pathologist or by imaging using Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) assessed by blinded independent central review (BICR); and 2) overall survival (OS).

• Phase: Phase 3

Details

• Lead Sponsor: Merck Sharp & Dohme Corp.
• Treatments: Cisplatin; Gemcitabine; Pembrolizumab; Pemetrexed