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Journal of Clinical Lipidology
Year: 2011  |  Volume: 5  |  Issue: 6  |  Page No.: 483 - 492

Effects of prescription omega-3-acid ethyl esters, coadministered with atorvastatin, on circulating levels of lipoprotein particles, apolipoprotein CIII, and lipoprotein-associated phospholipase A2 mass in men and women with mixed dyslipidemia

Kevin C. Maki, Harold E. Bays, Mary R. Dicklin, Susan L. Johnson and Mayadah Shabbout    



Prescription omega-3-acid ethyl esters (POM3) reduce triglycerides (TG) and very low-density lipoprotein cholesterol and increase high-density lipoprotein cholesterol (HDL-C) in patients with hypertriglyceridemia.


To examine the effects of POM3 plus atorvastatin versus placebo plus atorvastatin on lipoprotein particle concentrations and sizes, apolipoprotein (Apo) CIII, and lipoprotein-associated phospholipase A2 mass in subjects with mixed dyslipidemia.


After a 4-week diet lead in, men and women with non-HDL-C >160 mg/dL and TG 250-599 mg/dL, while taking no lipid-altering drugs, received double-blind 4 g/d POM3 (n = 118) or placebo (n = 119) with open-label atorvastatin 10 mg/d for 8 weeks, followed by escalation to 20 mg/d atorvastatin for 4 weeks, then 40 mg/d atorvastatin for 4 weeks.


Total low-density lipoprotein particle (LDL-P) concentration decreased significantly from baseline, and the reductions did not differ between the POM3 and placebo groups (−659.7 vs −624.4 nmol/L, P = .181). With POM3, compared with placebo, small LDL-P concentration decreased (P = .026), large LDL-P concentration increased (P < .001), mean LDL-P size increased (P = .001), a larger fraction of subjects switched from LDL subclass pattern B to A, and Apo CIII and lipoprotein-associated phospholipase A2 levels were reduced (P < .001). The incremental effects of POM3 were similar across atorvastatin doses for most variables.


This analysis supports the view that LDL-P concentration is not increased by POM3 plus atorvastatin, relative to atorvastatin monotherapy, and is associated with potentially favorable shifts in LDL-P subfractions, Apo CIII and lipoprotein-associated phospholipase A2 in mixed dyslipidemia.

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