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  • Title: [Intravesical instillation with epirubicin as a prophylactic treatment for superficial bladder cancer--using two different schedules].
    Author: Segawa N, Nishida T, Takahara K, Nomi H, Azuma H, Katsuoka Y.
    Journal: Hinyokika Kiyo; 2008 Nov; 54(11):711-6. PubMed ID: 19068724.
    Abstract:
    Intravesical chemotherapy is performed after transurethral resection of bladder tumor (TURBT) for superficial bladder cancer. We conducted a prospective randomized controlled study on the prophylactic effects of intravesical instillation of epirubicin (EPI) against recurrence to determine the effective administration schedule. Between April 1999 and March 2003, 54 patients with superficial bladder tumor (pTa or pT1, and G1 or G2 cancer) were assigned to two groups (25 in Group A, 29 in Group B) after TURBT. The schedule of instillation (intravesically 40 mg of EPI dissolved in 40 ml saline) was subsequently once every two weeks for 3 months (7 times) starting one week after TURBT (Group A, short period), and subsequently added every two weeks for 3 months starting 6 months after TURBT (Group B, long period). The patients were followed up by cystoscopy and urinary cytology. There was no significant difference in non-recurrence rates after either one year (A; 62.5%, B; 82.8%) or three years (A; 53.6%, B; 67.3%). A univariate analysis demonstrated that tumor grade and staging were significant predictors of high risk for recurrence. A multivariate analysis performed by using the Cox's proportional hazard model showed that the schedule of instillation was an independent prognostic factor for reccurence. In the present study, only 2 patients showed progression and one patient died of UC. There was no adverse event that forced discontinuation of the therapy. In conclusion, epirubicin instillation influenced the prevention of recurrence, but the benefit of long-term period was not confirmed.
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