A high level of baseline PD-L1 was associated with a numerically elevated ORR (combined positive score [CPS] ≥1 vs. < 1: 40.0% vs. 25.7%; CPS ≥ 5 vs. < 5: 37.5% vs. 28.6%; CPS ≥ 10 vs. < 10: 60.0% vs. 26.7%; tumor proportion score [TPS] 1–49% vs. < 1%: 66.7% vs. 25.0%). Here, CD274 is linked to neoplasm.