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Published on: March 6, 2018
Impact of Finasteride on Survival in Bladder Cancer: A Retrospective Multi-institutional Database Analysis
Harshit Garg1, Karen M Wheeler1, Furkan Dursun1
1Department of Urology, University of Texas Health, San Antonio, TX.
Introduction:
Androgen suppression therapy has been associated with a lower incidence of bladder cancer (BCa) or improved overall/cancer-specific survival. Results are ofent conflicting; therefore, we aim to assess the impact of use of finasteride on overall survival (OS) for BCa using multi-institutional database.
Methods:
The South Texas Veterans Healthcare System from 5 medical centers was queried for patients with BCa with or without use of finasteride after diagnosis of BCa. The primary outcome was the impact of finasteride use after diagnosis on the OS in BCa and in the high-risk Non-muscle invasive BCa (NMIBC) cohort.
Results:
A total of 1890 patients were included, amongst which 619 (32.8%) men were classified as finasteride users and 1271 (67.2%) men as controls. At a median (IQR) follow up of 53.8 (27.4, 90.9) months, death due to any cause was noted in 272 (43.9%) finasteride-treated, and 672 (49.3%) control groups (P = .028). The patients in the finasteride group had significantly better OS in overall cohort (112.1 months vs. 84.8 months, P < .001) as well as in the NMIBC cohort (129.3months vs. 103.2 months, P = .0046). The use of finasteride was independently associated with improved OS in both, overall cohort (HR 0.74, 95% CI 0.63-0.86; P < .001) and in the NMIBC cohort (HR = 0.71, 95% CI 0.55-0.93; P = .011).
Conclusion:
Finasteride use is associated with the improved overall survival in patients with BCa, specifically in patients with NMIBC. We, further, propose a randomized clinical trial to investigate the use of finasteride in BCa patients.
