A Study on the Efficacy of Androgen Deprivation Therapy Combined With Anti-PD-1 Therapy in Advanced Lung Cancer

3.Inclusion Criteria: 1. Male patients aged ≥60 years. 2. ECOG performance status score of 0 \~1. 3. Expected survival time of more than 3 months. 4. Histologically or cytologically diagnosed advanced lung cancer according to the TNM staging system established by AJCC. 5. Patients who have not previously received any anti-PD-1 treatment. 6. Patients with adequate bone marrow function, no significant hepatic, renal, or coagulation dysfunction as per laboratory test criteria. 7. At least one tumor lesion meeting the following criteria: * No prior local treatments such as radiotherapy * Not biopsied during the screening period (if biopsy needed, baseline tumor assessment at least 14 days after the screening biopsy). * Measurable at baseline (longest diameter of the lesion ≥10 mm; For a lymph node, short diameter ≥15 mm). * If only one measurable lesion, no prior local treatments such as radiotherapy. 8. Ability to understand and voluntarily sign a written informed consent form. 9. Willingness to follow the study protocol and follow-up examinations. Exclusion Criteria: * Exclusion of cases that do not meet the inclusion criteria