Efficacy and safety of the coadministration of tadalafil once daily with finasteride for 6 months in men with lower urinary tract symptoms and prostatic enlargement secondary to benign prostatic hyperplasia
Abstract
PURPOSE: Medical treatment for men with lower urinary tract symptoms and prostatic enlargement secondary to benign prostatic hyperplasia is 5α-reductase inhibitor monotherapy or coadministration with an α-blocker. We assessed the effects of tadalafil 5 mg coadministered with finasteride 5 mg during 26 weeks on lower urinary tract symptoms and sexual symptoms.
MATERIALS AND METHODS: In an international, randomized, double-blind, parallel study of men 45 years old or older who were 5α-reductase inhibitor naïve and had an I-PSS (International Prostate Symptom Score) of 13 or greater and prostate volume 30 ml or greater, 350 were treated with placebo/finasteride and 345 received tadalafil/finasteride for 26 weeks. Changes in lower urinary tract symptoms secondary to benign prostatic hyperplasia were assessed with the I-PSS, erectile dysfunction improvements were assessed with the IIEF-EF (International Index of Erectile Function-Erectile Function) in sexually active men and safety was assessed by evaluating adverse events.
RESULTS: Least squares mean changes from baseline in I-PSS after 4, 12 and 26 weeks of tadalafil/finasteride coadministration were -4.0, -5.2 and -5.5, respectively. Corresponding values for placebo/finasteride coadministration were -2.3, -3.8 and -4.5 (p ≤ 0.022 at all visits favoring tadalafil/finasteride coadministration). I-PSS subscores (storage and voiding) and quality of life index were also numerically improved with tadalafil/finasteride…
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Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design.
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