University of Hertfordshire

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Original languageEnglish
Number of pages5
Pages (from-to)1850-1854
JournalBritish Journal of Urology
Journal publication date1 Dec 2011
Early online date3 Mar 2011
Publication statusPublished - 1 Dec 2011


To describe the rationale and design of the Erectile Dysfunction and Statins (EDS) Trial which aims to evaluate the effectiveness of simvastatin on erectile function and health-related quality of life in men aged ≥40 years with erectile dysfunction.

The study is a randomized, double-blind, placebo-controlled trial to test the hypotheses that statins improve endothelial function and reduce cholesterol and may improve erectile function in men with untreated erectile dysfunction (ED).

Study subjects are men ≥40 years who are not receiving lipid-lowering or anti-hypertensive medication and have no other cardiovascular disease (CVD) risk factors.

Eligible men with untreated ED are randomized to double-blind treatment with 40 mg simvastatin or placebo once daily for 6 months.

Data are collected at baseline, mid-trial and at the final follow-up visit at 30 weeks.

The main outcome is erectile function measured by the five-item version of the International Index of Erectile Function. Secondary outcomes include sexual-health-related quality of life and endothelial function.

Ten general practices have been recruited in the east of England.

We have randomized 173 men for a power of 90% to assess the main outcome.

To date there have been no serious unexpected adverse events.
Study findings will be available in September 2011.

If simvastatin improves erectile function it would provide an inexpensive treatment for ED suitable for most men, and reduce the risk of future CVD.

Research outputs

ID: 382291