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Carotid Atherosclerosis: MEtformin for Insulin ResistAnce Study — CAMERA  

Coronary Artery Disease Clinical Trial

Official title:
A Randomised Placebo-controlled Trial of Metformin on Progression of Carotid Atherosclerosis in Non-diabetic Patients With Cardiovascular Disease Treated With Conventional Risk Reducing Agents

Clinical Trial Summary

Hypothesis: Treatment with metformin in overweight non-diabetic individuals with coronary heart disease and on standard cardiovascular risk reducing agents including statins will have a beneficial impact on carotid artery atherosclerosis compared to placebo.

Rationale: Once subjects have a heart attack, they remain at much higher than average risk of another heart attack and stroke, despite the best current therapies to lower their cholesterol and blood pressure and thin their blood. Many subjects with heart disease also have problems metabolising (i.e. processing) sugar even if they do not have diabetes. There is some evidence that metformin, a drug which improves sugar metabolism, decreases the risk of future heart attacks in diabetic patients. However, whether metformin further reduces the risk of heart disease beyond established treatments in people without diabetes is unknown.

Method: The investigators will test the ability metformin, a drug with proven safety, to slow the progression of furring up (known as atherosclerosis) of blood vessels in non-diabetic subjects with heart disease. This will be achieved by treating 2 groups of subjects with metformin and placebo pills respectively. To measure atherosclerosis, the investigators will carry out ultrasound scans of the big blood vessels in the neck at the start of the study, after 1 year and after 1.5 years of therapy.The investigators will then be able to assess whether metformin has had a beneficial impact.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00723307
Study type Interventional
Source University of Glasgow
Contact
Status Completed
Phase Phase 4
Start date February 2009
Completion date December 2012
View Details
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