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Change in sexual function in men with lower urinary tract symptoms/benign prostatic hyperplasia associated with long-term treatment with doxazosin, finasteride and combined therapy.

Author(s): Fwu CW(1), Eggers PW(2), Kirkali Z(2), McVary KT(3), Burrows PK(4), Kusek JW(2).

Affiliation(s): Author information: (1)Social & Scientific Systems, Inc., Silver Spring, Maryland. Electronic address: cfwu@s-3.com. (2)Division of Kidney, Urologic and Hematologic Diseases, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland. (3)Division of Urology, Southern Illinois University School of Medicine, Springfield, Illinois. (4)George Washington University Biostatistics Center, Rockville, Maryland.

Publication date & source: 2014, J Urol. , 191(6):1828-34

PURPOSE: We examined the effects of doxazosin, finasteride and combined therapy in men with lower urinary tract symptoms associated with benign prostatic hyperplasia on sexual function, as assessed by the Brief Male Sexual Function Inventory during 4 years. MATERIALS AND METHODS: The MTOPS (Medical Therapy of Prostatic Symptoms) study was a multicenter, randomized, double-blind, placebo controlled clinical trial with a primary outcome of time to benign prostatic hyperplasia progression. Change in sexual function was a secondary outcome. We analyzed the records of 2,783 men enrolled in the study who completed the inventory at baseline and at least once during followup. RESULTS: In men enrolled in MTOPS sexual function decreased with time. Men assigned to finasteride and combined therapy experienced overall statistically significant but slight worsening of ejaculatory function compared with men on placebo. Men assigned to combined therapy also experienced significant worsening in erectile function and sexual problem assessment. There was no significant difference in changes in any inventory domain in men assigned to doxazosin alone compared to placebo. CONCLUSIONS: This study significantly extends understanding of the effects of long-term treatment with these drugs on sexual function in men with lower urinary tract symptoms associated with benign prostatic hyperplasia. Treatment with finasteride or combined therapy was associated with worsening sexual function while treatment with doxazosin alone was associated with minimal negative impact, if any. Physicians should discuss with their patients the possible long-term effects of these drugs for lower urinary tract symptoms associated with benign prostatic hyperplasia on sexual function.

Page last updated: 2014-11-30

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