The authors report the results of a trial of the treatment of recurrences of advanced carcinomas of the bladder using Cis-Diamino-Dichloro-Platinum administered by continuous IV infusion over a period of 24 hours at a dose of 100 mg/m2, under cover of hyperhydration and anti-haematizing drugs. The trial involved 10 patients who has had the following initial treatment : - excision for 8 of them (2 total cystectomies for T4, one total cystectomy for T3B, 2 total cystectomies for T3A and 3 partial cystectomy for T1); - preoperative cobalt therapy for 7 of them (2 flashes of 7.5 gray) - postoperative chemotherapy (VM26 and 5FU) for 5 patients. The targets evaluated were : 7 remaining pelvic tumours or recurrences, 3 lung metastases, two cases of venous compression with oedema of the lower limbs, 3 node metastases, 3 bone and 1 sciatic metastases. Results : - 1 complete remission with disappearance for 10 months in the same patient of pulmonary metastases, venous compression and an inguinal node; - 3 partial remissions for 2 to 9 months; - 2 minor remissions of 3 to 5 months; - 3 stabilizations and 1 progression. It is interesting to note the greater efficacy on distant metastases (2/3 complete disappearances of lung metastases, 2/2 disappearances of oedema of the lower limbs) than on pelvic tumours (4/7 regressions). In total, 4 objective responses out of 10 occurring between the 2nd and 6th week after the first course. The authors announce a valuable synergism of DDP with cyclophosphamide and adriamycin.