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J Clin Lipidol. 2009 May-Jun;3(3):179-86. doi: 10.1016/j.jacl.2009.04.048. Epub 2009 May 3.

Lipid-modifying efficacy of extended release niacin/laropiprant in Asian patients with primary hypercholesterolemia or mixed hyperlipidemia.

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  • 1Merck Research Laboratories, 126 East Lincoln Avenue, RY34A-218, Rahway, New Jersey, 07065 USA.

Abstract

BACKGROUND:

Niacin has proven lipid-modifying efficacy and cardiovascular benefit; however, it is underused because of skin flushing, a process mediated primarily by prostaglandin D(2) (PGD(2)). Laropiprant (LRPT), a PGD(2) receptor (DP1) antagonist that mitigates niacin-induced flushing, has been combined with extended-release niacin (ERN) into a fixed-dose tablet containing 1g of ERN and 20mg of LRPT (ERN/LRPT 1g). In a large-scale (n=∼1600), multinational, 6-month study in dyslipidemic patients, ERN/LRPT 2g produced superior lipid-modifying efficacy vs placebo, whether administered alone or with concomitant statins.

OBJECTIVE:

This Phase III, randomized, double-blind study evaluated the lipid-modifying efficacy of ERN/LRPT alone or added to ongoing statins in Asian patients with primary hypercholesterolemia or mixed hyperlipidemia.

METHODS:

After a 4-week placebo run-in, patients were randomized to ERN/LRPT 1g (n=322) or placebo (PBO; n=324). After 4 weeks, the dose was advanced to 2 tablets/d (ERN/LRPT 2g or PBO) for 8 additional weeks. End points included effects of ERN/LRPT 2g vs PBO on low-density lipoprotein cholesterol (LDL-C; primary), high-density lipoprotein cholesterol (HDL-C), triglyceride (TG), and other lipids/lipoproteins.

RESULTS:

Relative to PBO, ERN/LRPT 2g produced significant (P < .001) changes in LDL-C (-14.7%), HDL-C (15.9%), TG (-23.4%), LDL-C:HDL-C (-25.5%), non-HDL-C (-16.4%), apolipoprotein (Apo) B (-15.4%), and Apo A-I (5.3%) from baseline to week 12 in the total population. Similar results were observed in patients treated with ERN/LRPT alone or added to ongoing statin.

CONCLUSION:

ERN/LRPT 2g, administered alone or with a statin, produced significant improvements in multiple lipid/lipoprotein parameters in dyslipidemic Asian patients.

PMID:
21291812
[PubMed]
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