363 KEYNOTE-042 5-year survival update: pembrolizumab versus chemotherapy in patients with previously untreated, PD-L1–positive, locally advanced or metastatic non–small-cell lung cancer

Background Primary analysis of KEYNOTE-042 ( NCT02220894 ), a global, randomized, phase 3 trial, showed that pembrolizumab significantly improved OS versus platinum-based chemotherapy in patients with locally advanced or metastatic non–small-cell lung cancer (NSCLC) without sensitizing EGFR/ALK alterations and with PD-L1 tumor proportion score (TPS) ≥50%, ≥20%, and ≥1% with fewer treatment-related AEs than chemotherapy. We report an updated...