NCT03976323 2026-02-25Study of Pembrolizumab With Maintenance Olaparib or Maintenance Pemetrexed in First-line (1L) Metastatic Nonsquamous Non-Small-Cell Lung Cancer (NSCLC) (MK-7339-006, KEYLYNK-006)Merck Sharp & Dohme LLCPhase 3 Completed1,003 enrolled 23 charts