Twenty-seven patients with invasive bladder carcinoma (clinical stages T2 to T4) who were not candidates for cystectomy were treated by transurethral resection, cis-diamminedichloroplatinum (cisplatin) and full dose radiotherapy according to protocol 8 of the National Bladder Cancer Collaborative Group A. Nausea and vomiting occurred in 74 per cent of the patients but were mild in 41 per cent. Maximum followup was 27 months and during that time 3 significant toxic reactions occurred: renal failure, systemic sepsis and a transient partial small bowel obstruction. Of 17 evaluable patients complete responses of the primary bladder cancer to the treatment were achieved in 11 of 13 with stages cT2 and cT3 cancer and in 2 of 4 with stage cT4 disease. The members of National Bladder Cancer Collaborative Group A have found transurethral resection, cisplatin and full dose external beam radiotherapy practical clinically. Longer followup will be necessary to determine if the observed high initial complete response rate of the tumor indicates real lasting benefit for these patients.
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