Alcohol and Atherosclerosis Pilot Study (AAAPILOT)
Recruitment status was Active, not recruiting
The investigators propose a pilot study to determine the feasibility of a long-term clinical trial of alcohol intake on atherosclerosis, the first step in determining whether moderate drinking prevents cardiovascular disease and hence in understanding the full health effects of alcohol across the population. The investigators will randomize 40 participants aged 55 and older to a six-month period of consumption of 1 glass per day of either pure alcohol (diluted to the strength of wine) or water. At baseline and after 6 months, the investigators will measure several standard and novel cardiovascular risk markers in the blood and will perform magnetic resonance imaging to measure atherosclerosis of the aorta.
|Study Design:||Allocation: Randomized
Endpoint Classification: Safety Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
|Official Title:||Alcohol and Atherosclerosis Pilot Study|
- Adherence to alcohol intake and MRI examinations [ Time Frame: 6 months ] [ Designated as safety issue: No ]
- GGT [ Time Frame: Monthly over the course of six months ] [ Designated as safety issue: Yes ]We will be examining Gamma-glutamyltransferase blood test results.
|Study Start Date:||November 2008|
|Estimated Study Completion Date:||December 2011|
|Estimated Primary Completion Date:||August 2011 (Final data collection date for primary outcome measure)|
Active Comparator: Experimental
150 cc flavored, calorie-free beverage with 15 gm ethanol daily
15 gm ethanol daily for 6 months
Placebo Comparator: Placebo Comparator
150 cc daily of flavored, calorie-free beverage without alcohol
Other: Ethanol-free beverage
0 grams ethanol daily for 6 months
The feasibility of a long-term randomized trial of alcohol intake on clinical endpoints is uncertain. One approach that could minimize the size and duration of such a randomized trial would be to assess the effect of alcohol on progression of radiologically-defined atherosclerosis.
The investigators propose a proof-of-principle pilot study of the effect of longer-term alcohol intake on atherosclerosis. The investigators will recruit and randomize 40 participants aged 55 and older at high risk for CHD to a six-month period of consumption of a single 150 ml glass per day of either 10% ethanol (approximating wine) or water. At baseline and after 6 months, the investigators will assess aortic atherosclerosis using magnetic resonance imaging. The investigators will determine adherence in several ways, including serum markers, dietary recalls, and measurement of unused beverage. The primary outcomes in this feasibility study will be compliance with alcohol intake and the two MRI examinations. As secondary outcomes, the investigators will measure standard and novel cardiovascular risk markers, including inflammatory markers and measures of glucose metabolism. The investigators will assess safety on a continual basis, including repeated testing of liver enzymes and blood counts.
If successful, this pilot study will form the basis for a more definitive trial to determine the effect of alcohol intake on progression of atherosclerosis, which could itself establish the feasibility of even larger, longer-term studies of alcohol intake and occurrence of cardiovascular events.
|United States, Massachusetts|
|Beth Israel Deaconess Medical Center|
|Boston, Massachusetts, United States, 02215|
|Principal Investigator:||Kenneth Mukamal, MD||Beth Israel Deaconess Medical Center|