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Avelumab, Talazoparib, and Axitinib in Treating Patients with MSS, MSI-H, and POLE-Mutated Recurrent or Persistent Endometrial Cancer

Trial Status: closed to accrual

This phase II trial studies how well avelumab together with talazoparib or axitinib work in treating patients with microsatellite stable (MSS), high frequency microsatellite instability (MSI-H), and polymerase e (POLE)-mutated endometrial cancer that has come back (recurrent) or does not go to remission despite treatment (persistent). Immunotherapy with monoclonal antibodies, such as avelumab, may help the body’s immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Talazoparib and axitinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving avelumab together with talazoparib or axitinib may work better in treating MSS endometrial cancer compared to avelumab alone.