Efficacy and safety of udenafil for the treatment of erectile dysfunction after total mesorectal excision of rectal cancer: A randomized, double-blind, placebo-controlled trial

Soo Yeun Park, Gyu Seog Choi, Jun Seok Park, Hye Jin Kim, Ju A. Park, Jong Ik Choi

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Background Nerve-preserving surgery has been provided for patients with rectal cancer; however, sexual dysfunction remains a common complication of rectal cancer surgery. This study explored the efficacy of udenafil to treat erectile dysfunction in male patients who underwent total mesorectal excision (TME) for rectal cancer.

Methods We conducted a randomized, double-blind, placebo-controlled clinical trial involving 80 male patients who had decreased International Index of Erectile Function-5 (IIEF-5) scores after TME for rectal cancer. Patients received placebo (50 mg) or udenafil (50 mg) for 12 weeks. The primary outcome variable was the change in IIEF-5 scores. The secondary outcome variables were Sexual Encounter Profile (SEP) questions 2 (Q2) and 3 (Q3), and the Global Assessment Question (GAQ).

Results Baseline IIEF-5 scores, SEP Q2 and Q3 responses, and spontaneous erection rates were consistent in both groups. At the end of treatment, the change in IIEF-5 scores from the baseline was significantly higher in the udenafil group than it was in the placebo group (mean IIEF-5 score, 4.8 ± 4.0 vs 2.0 ± 1.7; P <.05). Responses to SEP Q2, SEP Q3, and GAQ were significantly higher in the udenafil group than they were in the placebo group (SEP Q2, P =.025; SEP Q3, P =.044; GAQ, P <.001). Treatment-related adverse events (n = 4) were all mild in severity.

Conclusion Oral udenafil was deemed safe and effective for the treatment of erectile dysfunction in patients who underwent TME for rectal cancer.

Original languageEnglish
Pages (from-to)64-71
Number of pages8
JournalSurgery (United States)
Volume157
Issue number1
DOIs
StatePublished - 1 Jan 2015

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