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Treatment of premature ejaculation in the Asia-Pacific region: results from a phase III double-blind, parallel-group study of dapoxetine

McMahon C, Kim SW, Park NC, Chang CP, Rivas D, Tesfaye F, Rothman M, Aquilina J et al.

The Journal of Sexual Medicine, 2009

1,067 participants · 117 citations

Abstract

INTRODUCTION: Dapoxetine is a short-acting selective serotonin reuptake inhibitor that was recently approved for the on-demand treatment of premature ejaculation (PE). AIM: To evaluate the efficacy and safety of dapoxetine 30 mg and 60 mg on demand (prn) in men with PE from the Asia-Pacific region. METHODS: This randomized, double-blind, parallel-group, placebo-controlled trial enrolled men who were 18 years or older; in a monogamous, heterosexual relationship for at least 6 months; met the Diagnostic and Statistical Manual of Mental Disorders, fourth edition, text revision, criteria for PE for at least 6 months; and had an intravaginal ejaculatory latency time (IELT) of 2 minutes or less in at least 75% of sexual intercourse episodes. Subjects received placebo, dapoxetine 30 mg, or dapoxetine 60 mg prn (1-3 hours before intercourse) for 12 weeks. MAIN OUTCOME MEASURES: Stopwatch-measured Average IELT, the Premature Ejaculation Profile (PEP), Clinical Global Impression (CGI) of change in PE, treatment-emergent adverse events (TEAEs). RESULTS: Of the 1,067 subjects randomized, 858 completed the study. Mean Average IELT increased from approximately 1.1 minutes at baseline (across groups) to 2.4, 3.9, and 4.2 minutes with placebo, dapoxetine 30 mg, and dapoxetine 60 mg, respectively, and geometric mean Average IELT increased from approximately 0.9 minutes at baseline (across groups) to 1.8, 2.7, and 3.1 minutes, respectively (fold-increases of 2.0, 2.8, and 3.3, respectively).…

How strong is the evidence?

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. Reported size: 1,067 participants or records.

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