The Asia-Pacific Flexible Dose Study of Dapoxetine and Patient Satisfaction in Premature Ejaculation Therapy: The PASSION Study

Chris McMahon, Sung Won Lee, Sae Woong Kim, Du Geon Moon, Apichat Kongkanand, Kavirach Tantiwongse

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Introduction: Dapoxetine is a short-acting selective serotonin reuptake inhibitor for treatment of premature ejaculation (PE). Aim: To evaluate the efficacy and safety of dapoxetine 30 and 60 mg as needed in Asia-Pacific men with PE. Methods: The study was a prospective, 12-week, open-label study to evaluate the efficacy and safety of flexible-dose dapoxetine in men with PE diagnosed by a Premature Ejaculation Diagnostic Tool score of at least 11, a self-estimated intravaginal ejaculation latency time (IELT) no longer than 2 minutes, and an International Index of Erectile Function erectile function domain score of at least 21. Main Outcome Measures: Percentage of subjects reporting their PE as at least "slightly better" using the Clinical Global Impression of Change (CGIC) question. Results: Two hundred eighteen of 285 randomized subjects completed the study. The mean subject age was 45.9 years and 57.7% were Korean. Dosages 1 (30 mg), 2 (30 → 60 mg), and 3 (30 → 60 → 30 mg) were used in 141, 124, and 13 subjects, respectively. At study end, a PE CGIC rating of at least "slightly better" was reported by 77.3%, 92.8%, and 100% of subjects for dosages 1, 2, and 3, respectively (P = .49). At study end, a CGIC rating of "slightly better" was reported by 85.2% and 85.3% of subjects with lifelong PE and acquired PE, respectively (P = .50). At study end, a CGIC rating of "slightly better" was reported by 84.1% and 86.4% of subjects with an estimated baseline IELT no longer than and at least ≤1 minute, respectively (P = .16). The incidence of a CGIC rating of at least "slightly better" was lower in subjects reporting an adverse event of moderate or severe severity and in subjects who increased to and maintained a dapoxetine dose of 60 mg and higher in subjects older than 50 years and in subjects with a baseline estimated IELT of at least 1 minute. Conclusion: In this study, flexible dosing of dapoxetine (30 and 60 mg) appeared effective in the treatment of PE.

Original languageEnglish
Pages (from-to)e18-e27
JournalSexual Medicine
Volume4
Issue number1
DOIs
Publication statusPublished - 2016 Mar 1

Keywords

  • Dapoxetine
  • PASSION Study
  • Premature Ejaculation

ASJC Scopus subject areas

  • Reproductive Medicine
  • Dermatology
  • Urology
  • Behavioral Neuroscience

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