Document Detail

The effects of quinapril and atorvastatin on the responsiveness to sildenafil in men with erectile dysfunction.
MedLine Citation:
PMID:  17390549     Owner:  NLM     Status:  MEDLINE    
Phosphodiesterase-5 (PDE-5) inhibitors are an effective therapy for the majority of men with erectile dysfunction (ED). However, many men with ED still report a suboptimal or partial response even after an adequate trial of oral PDE-5 therapy. Since ED is associated with impaired vascular function and both atorvastatin and quinapril have been previously shown to improve vascular function, we examined the effects of adjunctive treatment with these medications in men with vasculogenic ED who were suboptimal responders to 100 mg of sildenafil. Men with ED and suboptimal response to sildenafil were randomly assigned to 3 months of treatment with atorvastatin 40 mg (n = 12), quinapril 10 mg (n = 10), or placebo (n = 13), along with continued adjunctive sildenafil use. Measured variables included: International Index of Erectile Function (IIEF) questionnaire, brachial artery flow-mediated dilation (FMD), endothelium-independent dilation (EID) via nitroglycerin, penile Doppler blood flow, blood pressure (BP), lipids, and C-reactive protein (CRP). Compared to placebo, quinapril (p < 0.01) significantly improved symptoms of ED as measured by the IIEF-5 questionnaire. There was a trend toward a significant improvement in IIEF-5 with atorvastatin. Similarly, quinapril significantly improved the IIEF ED Domain (p < 0.05). Other peripheral and penile vascular parameters were unchanged with drug therapy as compared to placebo. In conclusion, treatment with quinapril, in combination with sildenafil, improved ED in men with suboptimal response to sildenafil alone. Atorvastatin demonstrated a trend toward improved ED in this group.
Alan J Bank; Aaron S Kelly; Daniel R Kaiser; William W Crawford; Benjamin Waxman; Douglas A Schow; Kevin L Billups
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Vascular medicine (London, England)     Volume:  11     ISSN:  1358-863X     ISO Abbreviation:  Vasc Med     Publication Date:  2006 Nov 
Date Detail:
Created Date:  2007-03-29     Completed Date:  2007-04-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9610930     Medline TA:  Vasc Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  251-7     Citation Subset:  IM    
St Paul Heart Clinic, St Paul, MN 55102, USA.
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MeSH Terms
Angiotensin-Converting Enzyme Inhibitors / therapeutic use*
Double-Blind Method
Drug Therapy, Combination
Heptanoic Acids / therapeutic use*
Hydroxymethylglutaryl-CoA Reductase Inhibitors / therapeutic use*
Impotence, Vasculogenic / drug therapy*
Middle Aged
Phosphodiesterase Inhibitors / therapeutic use*
Piperazines / therapeutic use*
Purines / therapeutic use
Pyrroles / therapeutic use*
Sulfones / therapeutic use*
Tetrahydroisoquinolines / therapeutic use*
Time Factors
Treatment Failure
Treatment Outcome
Reg. No./Substance:
0/Angiotensin-Converting Enzyme Inhibitors; 0/Heptanoic Acids; 0/Hydroxymethylglutaryl-CoA Reductase Inhibitors; 0/Phosphodiesterase Inhibitors; 0/Piperazines; 0/Purines; 0/Pyrroles; 0/Sulfones; 0/Tetrahydroisoquinolines; 110862-48-1/atorvastatin; 139755-83-2/sildenafil; 82586-55-8/quinapril

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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