Summary
Intravesical chemotherapy involving the sequential instillation of mitomycin C (MMC) and Adriamycin (ADM) was performed in 40 patients with superficial bladder cancer (pathological stages Ta and T1). In all, 20 mg MMC on day 1 and 30 mg ADM on day 2 were instilled into the bladder. This treatment was repeated weekly for 6 consecutive weeks and then monthly for 22 months in cases patients who did not experience serious side effects. A total of 20 patients were treated for multiple recurrences, and the efficacy was evaluated. In all, 9 subjects (45%) achieved a complete response and 6 (30%) showed a partial response, for an overall response rate of 75%. The other 20 patients, including 9 with primary multiple or high-grade tumors and 11 with recurrent tumors, received prophylactic instillation therapy after undergoing transurethral resection (TUR) of their lesions. Of the 9 primary cases, 3 recurred at 19, 8, and 3 months after TUR, respectively, whereas 6 showed no recurrence over a mean follow-up period of 14 months. Of the 11 recurrent cases, the 100-patient-month recurrence rate of 11.9 obtained prior to this treatment fell to 1.4 after the start of therapy. Chemical cystitis was observed in 20 of the 40 patients treated, but the symptoms were transient and tolerable.
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Isaka, S., Okano, T., Abe, K. et al. Sequential instillation therapy with mitomycin C and Adriamycin for superficial bladder cancer. Cancer Chemother. Pharmacol. 30 (Suppl 1), S41–S44 (1992). https://doi.org/10.1007/BF00686940
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DOI: https://doi.org/10.1007/BF00686940