The relationship between the expression of PD-L1 and clinicopathological characteristics was analyzed. Survival curves between groups of high and low PD-L1 expression were compared by Log-rank method….In patients with high expression both on vascular endothelial cells and tumor cells who experienced TQ-B2450 alone, the mPFS was significantly shorter than that of patients receiving anlotinib plus TQ-B2450 (89 days vs 246 days, P=0.002).