• Raymond C Rosen, Claus G Roehrborn, Michael J Manyak, Juan Manuel Palacios-Moreno, Timothy H Wilson, Zrinka Lulic, and Francois Giuliano.
• HealthCore/New England Research Institutes, Watertown, Massachusetts.
• Int. J. Clin. Pract. 2019 Sep 1; 73 (9): 1-9.

AimsFive-α reductase inhibitor (5ARI) therapy has been associated with sexual dysfunction in some patients. This study assessed the impact of a fixed-dose combination of the 5ARI dutasteride 0.5 mg and the α1 -adrenoceptor antagonist tamsulosin 0.4 mg (DUT-TAM FDC) on Men's Sexual Health Questionnaire (MSHQ) domain scores in patients with lower urinary tract symptoms secondary to benign prostatic hyperplasia (BPH).MethodsThis was a post hoc analysis of a double-blind, randomised, placebo-controlled, parallel-group, multicentre study in sexually active patients, aged ≥50 years, with a confirmed clinical diagnosis of BPH. Sexual activity, sexual desire, and bother domain scores of the MSHQ were assessed at baseline and at Months 1, 3, 6, 9, and 12. Correlation between MSHQ sexual activity/desire scores and ejaculation, erection, and satisfaction domains at baseline was also evaluated.ResultsIn the intent-to-treat population (N = 489), 243 and 246 patients were randomised to DUT-TAM FDC and placebo groups, respectively. Compared with placebo, DUT-TAM FDC therapy resulted in statistically significant reductions (worsening) from baseline in adjusted mean MSHQ sexual activity and bother domain scores at Months 1, 3, 6, 9, and 12 (all P < 0.05) and in adjusted mean MSHQ sexual desire domain scores at Months 6, 9, and 12 (all P < 0.05). Significant moderate correlations in the expected direction were observed at baseline between the sexual activity/desire domains and the ejaculation, erection, and satisfaction domains (P < 0.0001).ConclusionsThese findings help clarify the degree and impact of libido changes in sexually active men treated with DUT-TAM FDC and may support clinical decision-making.© 2018 The Authors. International Journal of Clinical Practice Published by John Wiley & Sons Ltd.

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