an evident trendP ≤ 0 . 001
Moreover, there was an evident trend to favour ICIs than control therapies for cancer patients in control group with placebo (OS: HR: 0.64, 95% CI: 0.53–0.77, P ≤ 0 . 001 ; PFS: HR: 0.55, 95% CI: 0.47–0.65; P ≤ 0 . 001 ) and chemotherapy (OS: HR: 0.74, 95% CI: 0.68–0.80, P ≤ 0 . 001 ; PFS: HR: 0.79, 95% CI: 0.69–0.90; P ≤ 0 . 001 ), but not with biologics (OS: HR: 0.93, 95% CI: 0.74–1.16, P = 0 . 496 PFS: HR: 0.97, 95% CI: 0.80–1.17; P = 0 . 730 ).