Nivolumab With or Without Ipilimumab or Chemotherapy in Treating Patients With Previously Untreated Stage I-IIIA Non-small Cell Lung Cancer

This phase II trial studies how well nivolumab works when given alone and in combination with ipilimumab or chemotherapy in treating patients with previously untreated stage I-IIIA non-small cell lung cancer. Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the tumor, and may interfere with the ability of tumor cells to grow and spread. Drugs used in chemotherapy, such as cisplatin, docetaxel, and pemetrexed, 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. Giving nivolumab with ipilimumab or chemotherapy may work better in treating patients with non-small cell lung cancer compared to chemotherapy alone.