This phase II/III trial compares the addition of radiation therapy to the usual treatment (immunotherapy with or without chemotherapy) vs. usual treatment alone in treating patients with non-small cell lung cancer that has spread to nearby tissue or lymph nodes (advanced) or has spread to other places in the body (metastatic) whose tumor is also negative for a molecular marker called PD-L1. Stereotactic body radiation therapy (SBRT) is a type of radiation therapy that uses high energy x-rays to kill tumor cells and shrink tumors. This method uses special equipment to position a patient and precisely deliver radiation to tumors with fewer doses over a shorter period and may cause less damage to normal tissue than conventional radiation therapy. Immunotherapy with monoclonal antibodies, such as nivolumab, ipilimumab and pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Chemotherapy drugs, such as carboplatin, pemetrexed, paclitaxel and nab-paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. The addition of radiation therapy to usual treatment may stop the cancer from growing and increase the life of patients with advanced non-small cell lung cancer who are PD-L1 negative.
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