Nivolumab and Ipilimumab in Treating Patients With Rare Tumors
PRIMARY OBJECTIVES: I. To evaluate the Response Evaluation Criteria in Solid Tumors (RECIST) version (v)1.1 overall response rate (ORR) in subsets of patients with advanced rare cancers treated with ipilimumab plus nivolumab combination immunotherapy. II. To evaluate the overall response rate (ORR) in patients with gestational trophoblastic tumors treated with...