Statement: infiltrating bladder urothelial carcinoma with trophoblastic differentiation is a variant of infiltrating bladder urothelial carcinoma. it is characterized by the presence of trophoblastic differentiation within the carcinoma. the primary trial intervention protocol will continue until patients achieve complete response or suffer disease progression.
Primary_evidence: INTERVENTION 1:    Pemetrexed   600 mg/m2, intravenous (IV), every 14 days until complete response or disease progression