Fig. 5

Correlation of biomarkers or subgroups with clinical efficacy. Subgroups by age, gender, PD-L1 expression on tumor cells, the presence of CD8+ TILs, ECOG performance score, LDH serum levels, baseline tumor burden, and prior lines of treatment are compared for clinical response to JS001 treatment. PD-L1-positive status was defined as the presence of membrane staining of any intensity in ≥ 1% of tumor cells by SP142 IHC staining. Upper limit of normal (ULN) for LDH serum level is 250 U/L. Baseline tumor burden was represented by sum of diameters of target lesion(s) per RECISTv1.1, and 100 mm was used as a cutoff