Head-to-head evidence
Pembrolizumab vs Sintilimab
Same mechanism, same race: design-graded trial evidence for both assets, with the grading rationale shown. Grades describe the quality of the evidence, never the merits of either security.
Non-Small Cell Lung Cancer
Shared mechanism: PD-1 · full Non-Small Cell Lung Cancer pipeline
Pembrolizumab
Marketed by Merck & Co.
NCT02142738 · Phase 3 · completed
The trial randomized 305 participants to pembrolizumab or active platinum-based chemotherapy, but treatment was open-label rather than double-blinded. Its radiographically assessed primary endpoint, 6-month progression-free survival, was met: 62.1% with pembrolizumab versus 50.3% with chemotherapy, with p<0.001 and a hazard ratio of 0.50 (95% CI 0.37–0.68).
Next expected readout: October 2026 · NCT06447662 (registry estimate)
Sintilimab
Developed by Innovent Biologics and partners
NCT03607539 · Phase 3 · completed
This trial was randomized, quadruple-blinded, and placebo-controlled with a reasonably large sample (397 patients) and used a hard clinical primary endpoint (progression-free survival), which is a strong design overall. However, the results record reports only median PFS values and confidence intervals for each arm (8.9 vs 5.0 months) without a p-value or hazard ratio, so whether the primary comparison reached statistical significance cannot be confirmed from the data provided.
Next expected readout: December 2026 · NCT06198907 (registry estimate)
The full competitive landscape for each asset (every same-race competitor with aligned evidence, sortable) is on the asset pages: Pembrolizumab's landscape · Sintilimab's landscape