A Phase I/II Multicenter Study Evaluating the Safety and Efficacy of Induction Chemoimmunotherapy Followed by Concurrent Chemoradiotherapy and Consolidation Immunotherapy in Unresectable Locally Advanced Non-Small Cell Lung Cancer
PIVOT study is a multicenter, phase I/II clinical study designed to evaluate induction chemoimmunotherapy followed by concurrent chemoradiotherapy and consolidation immunotherapy in patients with unresectable locally advanced non-small cell lung cancer (NSCLC). Phase I consists of a single-arm safety lead-in study evaluating the safety and preliminary efficacy of the investigational regimen. If predefined safety criteria are met, the study proceeds to a phase II randomized controlled trial comparing induction chemoimmunotherapy followed by concurrent chemoradiotherapy and consolidation immunotherapy with the standard PACIFIC regimen. The objective of the phase II study is to determine whether the investigational treatment strategy improves progression-free survival while maintaining an acceptable safety profile compared with the standard PACIFIC regimen.
• Age \>18 years, male or female, with an Eastern Cooperative Oncology Group (ECOG) performance status of 0-1.
• Histologically or cytologically confirmed non-small cell lung cancer (NSCLC).
• Unresectable stage III NSCLC (according to the 8th edition of the AJCC staging system).
• No prior exposure to any other anti-tumor therapy.
• Absence of severe medical comorbidities or major organ dysfunction, as assessed by hematology, hepatic, renal, cardiac, and pulmonary function tests, meeting the following criteria: Hematology: Hemoglobin (HB) ≥ 90 g/L (without blood transfusion within 14 days prior to enrollment); absolute neutrophil count (ANC) ≥ 1.5 × 10⁹/L; platelet count (PLT) ≥ 100 × 10⁹/L. Biochemistry: Total bilirubin (TBIL) ≤ 1.5 × the upper limit of normal (ULN); alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 2.5 × ULN; serum creatinine (Cr) ≤ 1 × ULN, with an endogenous creatinine clearance rate \> 60 mL/min (calculated using the Cockcroft-Gault formula). Coagulation: Prothrombin time (PT)/international normalized ratio (INR) and activated partial thromboplastin time (aPTT) ≤ 1.5 × ULN (unless the patient is receiving anticoagulant therapy, in which case PT or aPTT must be within the expected therapeutic range for the anticoagulant used).
• Life expectancy ≥ 3 months.
• Adequate understanding of the study, ability to complete treatment, suitability for follow-up, and voluntary provision of written informed consent.