This study is about treating a type of lung cancer called non-small cell lung cancer (NSCLC) that can’t be treated with surgery. It tests if adding a special high-dose radiation called stereotactic body radiation therapy (SBRT) to regular treatment (which includes regular radiation, chemotherapy, and immunotherapy) works better. SBRT uses special machines to aim radiation very precisely at the tumor, which might need fewer sessions and cause less harm to healthy parts of the body. The regular treatment uses drugs like cisplatin and carboplatin that stop cancer cells from growing. The study compares the usual treatment to adding SBRT to see which works better.

• Participants will be randomly assigned to two groups: one with SBRT and one with regular treatment.
• Study involves regular hospital visits for treatments and check-ups over several years.
• Participants can get regular chemotherapy and immunotherapy, with check-ups every few months.