Ten patients with advanced bladder cancer were treated with intra-arterial infusion therapy. The patients consisted of nine males and one female between 55 and 82 years old (median: 70 years). In all patients, cisplatinum (CDDP) (2 mg/kg), aclacinomycin (ACR) (0.5 mg/kg) and Angiotensin II (25 mg) were infused via the internal iliac artery for a period of about 30 minutes. Seven patients also received X-ray therapy with a linac. The efficacy of this therapy was assessed by computed tomographic scanning, sonography and cystoscopy. As a result of this assessment, 2 patients were rated complete response "(CR)", 6 partial response (PR) (showing 50% or more reduction in the lesion) and 2 no change "(NC)". To compare the efficacy of this therapy for two histopathologically defined groups of patients (patients with grades 2 and 3 cancer), one patient was rated "CR", four "PR" and two "NC" in the grade 3 group (total 7 patients), while one was rated "CR" and two "PR", in the grade 2 group (total 3 patients). In effective cases, pollakiuria and miction pain disappeared shortly following intra-arterial infusion therapy. As for side effects of the therapy, mild nausea or vomiting was observed in all patients, while leukopenia was noted in one patient.