CD274 and non-small cell lung carcinoma: In the phase 3 KEYNOTE-042 China study of participants enrolled in China in the global KEYNOTE-042 (NCT02220894) and China extension (NCT03850444) studies, pembrolizumab improved overall survival (OS) versus chemotherapy in locally advanced or metastatic non-small-cell lung cancer (NSCLC) with programmed cell death ligand 1 (PD-L1) tumor proportion score (TPS) ≥50% (hazard ratio [HR], 0.63; 95% CI, 0.43-0.94), ≥20% (0.66; 0.47-0.92), and ≥1% (0.67; 0.50-0.89).