A Randomized Phase 2 Study of Hypofractionated Concurrent Chemoradiotherapy Combined With Tislelizumab and Surufatinib in Patients With Unresectable Stage III Non-Small Cell Lung Cancer
This phase II trial employs a prospective, randomized, parallel-group design to evaluate the efficacy and safety of hypofractionated radiotherapy combined with tislelizumab and surufatinib. Eligible patients are randomly assigned to one of two arms: Experimental Group A receives hypofractionated chemoradiotherapy plus concurrent tislelizumab and surufatinib, followed by consolidation therapy with tislelizumab plus surufatinib; Experimental Group B receives the same hypofractionated chemoradiotherapy plus concurrent tislelizumab alone, followed by tislelizumab consolidation.
• Males or females aged 18 to 75 years or older;
• Patients must have histologically or cytologically confirmed non-small cell lung cancer (NSCLC);
• Unresectable Stage III disease according to AJCC 8th staging system;
• Negative for known driver gene mutations；
• Newly diagnosed patients or patients treated with ≤ 4 cycles of chemotherapy combined with or without immunotherapy;
• Expected survival ≥ 12 weeks;
• WHO Performance Status (PS) score of 0 or 1;
• Female subjects must not be breastfeeding;
• Women of childbearing potential (WOCBP) must agree to use contraception during the study treatment and for 5 months after the last dose of study drug (i.e., 30 days \[one ovulation cycle\] plus approximately five half-lives of the study drug);
• Adequate organ and bone marrow function as defined by the following criteria:
• Forced Expiratory Volume in 1 second (FEV1) ≥ 800 mL;
• Absolute neutrophil count ≥ 1.5 × 10⁹/L;
• Platelets ≥ 100 × 10⁹/L;
• Hemoglobin ≥ 9.0 g/dL;
• Creatinine clearance ≥ 50 mL/min as calculated by the Cockcroft-Gault formula (Cockcroft and Gault, 1976);
• Serum bilirubin ≤ 1.5 × upper limit of normal (ULN);
• AST and ALT ≤ 2.5 × ULN.