
Although survival outcomes were comparable among the 3 PD-1 inhibitors in the overall cohort, tislelizumab and sintilimab showed superior PFS in PD-L1–positive subgroups, suggesting biomarker-driven therapeutic selection.

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Although survival outcomes were comparable among the 3 PD-1 inhibitors in the overall cohort, tislelizumab and sintilimab showed superior PFS in PD-L1–positive subgroups, suggesting biomarker-driven therapeutic selection.