Clinical Trial: Statins and Endothelial Function in Patients With Coarctation of the Aorta
Study Status: Terminated
Recruit Status: Terminated
Study Type: Interventional
Official Title: Effects of Statins on Endothelial Function in Patients With Coarctation of the Aorta
Brief Summary:
Coarctation of the aorta (CoA) accounts for approximately 8% of all congenital heart problems. Patients with CoA are well known to have an increased rates of early heart disease, high blood pressure, heart failure and stroke. Abnormal arterial function (dilation and constriction of the blood vessels) has been observed in these patients and likely contributes to the increased risk of cardiovascular problems. However, therapies targeted at improving arterial function have not been investigated in this population. Statin therapy (cholesterol medicines like Lipitor) have been studied in other subgroups of patients with abnormal arterial function and has shown benefit in improving arterial function and reducing risk of cardiovascular problems.
The investigators hypothesize that patients with CoA have abnormal arterial function leading to increased cardiovascular risk. We further hypothesize that statin therapy may improve this problem. We plan to compile a complete database of information regarding these patients cardiovascular health and propose to then examine the effect of atorvastatin (Lipitor) on arterial function as measured by changes in arm arterial function tests.
Detailed Summary: The study design is a randomized double-blind cross over clinical trial. Patients who meet inclusion criteria and no exclusion criteria will be enrolled. They will undergo a baseline cardiovascular assessment including echocardiography, magnetic resonance imaging or magnetic resonance angiography (MRI/MRA), serum blood samples, brachial artery reactivity testing, and carotid intimal media thickness testing. Once they have completed their baseline testing, they will be randomized to either atorvastatin 80mg or placebo. They will complete 12 weeks of therapy and return at the end of 12 weeks to have a repeat brachial artery study and serum studies. There will then be a four week washout period where they take no medication. They will return for a follow up visit at the end of that four week period for repeat baseline brachial artery testing and serum studies. They then will be assigned to the opposite agent they were on previously (so if they originally were on placebo they switch to atorvastatin and vice versa). They will complete another 12 weeks of therapy and return at the end for a final brachial artery study and blood testing.
Sponsor: University of California, San Francisco
Current Primary Outcome: Pre-post Change in Brachial Artery Reactivity [ Time Frame: Baseline, 12 weeks ]
Original Primary Outcome: Brachial artery reactivity [ Time Frame: August 2008-June 2009 ]
Current Secondary Outcome:
Original Secondary Outcome:
Information By: University of California, San Francisco
Dates:
Date Received: September 24, 2008
Date Started: August 2008
Date Completion:
Last Updated: October 11, 2013
Last Verified: October 2013