Abstract
To assess the prophylactic efficacy of postoperative single intravesical instillation with pirarubicin (THP) and mitomycin C (MMC) for low-risk non-muscle-invasive bladder cancer (NMBC). A total of 103 clinically low-risk NMBC patients were preoperatively randomized into either THP (n=49) or MMC (n=54) groups. The primary endpoint was recurrence-free survival. The median follow-up periods of the THP and MMC groups were 955 and 1008 days, respectively (p=0.76). Twelve patients (24.5%) in the THP group and 7 (13%) in the MMC group had bladder cancer recurrences. The two-year recurrence-free survival of the THP group and the MMC group was 77.8% and 86.4%, respectively (p=0.20). Neither groups had severe toxicity. In low-risk NMBC, the prophylactic effect against postoperative single intravesical instillation with THP was not superior to that with MMC.
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