Postoperative Radiotherapy for Postoperative N2 Metastases of NSCLC in the Immunotherapy Era (Phase II)

Known or suspected active autoimmune diseases, or history of autoimmune diseases (e.g., interstitial pneumonia, colitis, hepatitis, hypophysitis, vasculitis, nephritis, hyperthyroidism, hypothyroidism, etc.); History of immunodeficiency (including positive HIV test), other acquired/congenital immunodeficiency diseases, organ transplantation or allogeneic bone marrow transplantation; Interstitial lung disease, drug-induced pneumonia, radiation pneumonia requiring steroid treatment, symptomatic active pneumonia, or severe pulmonary dysfunction; Poorly controlled cardiovascular symptoms or diseases (e.g., NYHA class II or higher heart failure, unstable angina, myocardial infarction within 1 year, uncontrolled arrhythmia); Active hepatitis B (HBV DNA ≥2000 IU/mL or 10⁴ copies/mL) or hepatitis C (positive anti-HCV and HCV-RNA above detection limit); Hereditary bleeding tendency or coagulation dysfunction; bleeding symptoms within 3 months, or positive fecal occult blood (++ or above); Toxicity from prior anti-tumor therapy not recovered to ≤CTCAE grade 1 (except alopecia); Known or suspected allergy to the study drug; Pregnant or lactating women; Subjects deemed unsuitable for inclusion by the investigator.