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Effects of Ezetimibe, Simvastatin, and Vytorin on Reducing L5 a Subfraction of LDL in Patients With Metabolic Syndrome. — Merck-123  

Metabolic Syndrome Clinical Trial

Official title:
Effects of Ezetimibe, Simvastatin, and Vytorin on Reducing L5 in Patients With Metabolic Syndrome

Clinical Trial Summary

The purpose of this study is: - To identify the common factor for L5 prevalence in patients with Metabolic Syndrome. - To determine whether Ezetimibe, Simvastatin, and Vytorin can correct the L5- promoting factor and reduce L5 in Metabolic Syndrome patients.

Clinical Trial Description

Epidemiological evidence indicates that metabolic syndrome (MS) is a strong predisposing condition for atherosclerosis. Elevation of plasma low-density lipoprotein (LDL) cholesterol(LDL-C) concentration is the most important risk factor for atherosclerosis; however, LDL-C elevation is not a criterion for metabolic syndrome, raising the question of LDL's role in the syndrome's association with atherosclerosis. L5, a highly electronegative and mildly oxidized LDL subfraction that we recently isolated from hypercholesterolemic human plasma, may provide a key to answering this question. In cultured vascular endothelial cells (EC), L5 inhibits proliferation and induces apoptosis and monocyte-EC adhesion. In our preliminary studies, L5 could also be detected in patients with MS without elevated LDL-C. Because other LDL subfractions were harmless to EC, the presence of MS-L5 prompted us to hypothesize that the atherogenic role of LDL is not solely determined by plasma LDL-C concentration, but more importantly, by its composition. The proposed study is designed to test this hypothesis. The first question we will address is what lipid factor determines the prevalence of L5 in MS. Subsequently, we will examine whether treatment with selected medicines can effectively reduce L5 in MS patients by correcting the factor favorable for L5 formation. We are in the process of identifying the active components of L5 to fully characterize the atherogenic role of L5 in MS,. In the current proposal, we focus our interest on the efficacy of Ezetimibe, Simvastatin, and Vytorin in reducing L5 from the plasma of MS patients. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00988364
Study type Interventional
Source Baylor College of Medicine
Contact
Status Completed
Phase Phase 4
Start date March 2007
Completion date February 2008
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