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Am J Cardiol. 2010 May 15;105(10):1409-12. doi: 10.1016/j.amjcard.2009.12.063. Epub 2010 Mar 30.

Baseline lipoprotein lipids and low-density lipoprotein cholesterol response to prescription omega-3 acid ethyl ester added to Simvastatin therapy.

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  • 1Provident Clinical Research, Glen Ellyn, Illinois, USA. kmaki@providentcrc.com

Abstract

The present post hoc analysis of data from the COMBination of prescription Omega-3 with Simvastatin (COMBOS) study investigated the predictors of the low-density lipoprotein (LDL) cholesterol response to prescription omega-3 acid ethyl ester (P-OM3) therapy in men and women with high (200 to 499 mg/dl) triglycerides during diet plus simvastatin therapy. Subjects (n = 256 randomized) received double-blind P-OM3 4 g/day or placebo for 8 weeks combined with diet and open-label simvastatin 40 mg/day. The percentage of changes from baseline (with diet plus simvastatin) in lipids was evaluated by tertiles of baseline LDL cholesterol and triglyceride concentrations. The baseline LDL cholesterol tertile was a significant predictor of the LDL cholesterol response (p = 0.022 for the treatment by baseline tertile interaction). The median LDL cholesterol response in the P-OM3 group was +9.5% (first tertile, <80.4 mg/dl), -0.9% (second tertile), and -6.4% (third tertile, > or =99.0 mg/dl). Non-high-density lipoprotein cholesterol, very-low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, and triglyceride responses did not vary significantly by baseline LDL cholesterol tertile. The reductions in very-low-density lipoprotein cholesterol concentrations were greater than the increases in LDL cholesterol, where present, resulting in a net decrease in the concentration of cholesterol carried by atherogenic particles (non-high-density lipoprotein cholesterol) in all baseline LDL cholesterol tertiles. In conclusion, these results suggest that the increase in LDL cholesterol that occurred with the addition of P-OM3 to simvastatin therapy in subjects with mixed dyslipidemia was confined predominantly to those with low LDL cholesterol levels while receiving simvastatin monotherapy.

Copyright 2010 Elsevier Inc. All rights reserved.

PMID:
20451686
[PubMed - indexed for MEDLINE]
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