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Nivolumab and IDO1 Inhibitor or Ipilimumab for the Treatment of Progressive or Recurrent Glioblastoma or Gliosarcoma

Trial Status: administratively complete

This phase I trial studies the side effects of nivolumab given together with IDO1 inhibitor or with ipilimumab in treating patients with glioblastoma or gliosarcoma that is growing, spreading, or getting worse (progressive) or has come back (recurrent). Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. IDO1 inhibitor may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving nivolumab together with IDO1 inhibitor or with ipilimumab may be safe in treating patients with glioblastoma or gliosarcoma.