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Long-term efficacy and safety of ezetimibe/simvastatin coadministered with extended-release niacin in hyperlipidaemic patients with diabetes or metabolic syndrome.

Author(s): Fazio S, Guyton JR, Lin J, Tomassini JE, Shah A, Tershakovec AM

Affiliation(s): Department of Pathology, Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, TN, USA Department of Medicine, Duke University Medical Center, Durham, NC, USA Merck, North Wales, PA, USA.

Publication date & source: 2010-11, Diabetes Obes Metab., 12(11):983-93.

Aims: To assess the efficacy and safety of ezetimibe/simvastatin (E/S) plus extended-release niacin (N) in hyperlipidaemic patients with diabetes mellitus (DM), metabolic syndrome (MetS) without DM (MetS/non-DM) or neither (non-DM/non-MetS). Methods: A subgroup analysis of a double-blind, 64-week trial of 1220 randomized patients who received E/S (10/20 mg) + N (to 2 g) or E/S (10/20 mg) for 64 weeks, or N (to 2 g) for 24 weeks then E/S (10/20 mg) + N (2 g) or E/S (10/20 mg) for 40 additional weeks. The evaluable populations of this analysis included n = 765 patients at 24 weeks and n = 574 at 64 weeks. Among those receiving N, only those who attained the 2-g dose were included in the analysis. Results: E/S+N improved levels of low-density lipoprotein cholesterol, other lipids and lipoprotein ratios compared with N and E/S at 24 weeks and E/S at 64 weeks. The combination increased high-density lipoprotein cholesterol and apolipoprotein AI comparably to N and more than E/S. E/S+N reduced high-sensitivity C-reactive protein (hsCRP) levels more effectively than N and similarly to E/S. E/S+N was generally well tolerated. Discontinuations due to flushing with N and E/S+N were comparable and greater than E/S in all subgroups. Fasting glucose trended higher for N vs. E/S. Glucose elevations from baseline to 12 weeks were highest for patients with DM (24.9 mg/dl for N, 21.2 mg/dl for E/S+N, 17.5 mg/dl for E/S); fasting glucose then declined to pretreatment levels at 64 weeks in all subgroups. New-onset DM was more frequent among MetS patients than those without MetS during the first 24 weeks and trended higher among those assigned to N-containing regimens [n = 5(5.1%) for N, n = 2(1.7%) for E/S, n = 21(8.8%) for E/S+N]; during the 24-64 week extension study, diabetes was diagnosed in five additional patients in the E/S(cumulative incidence of 5.9%) and one in the E/S+N (cumulative incidence of 9.2%). Treatment-incident elevations in uric acid levels were increased among subjects assigned to N-containing regimens, but there were no effects on symptomatic gout. Conclusion: Combination E/S+N is a safe treatment option for hyperlipidaemic patients including those with DM and MetS, but requires monitoring of glucose and potentially uric acid levels. (c) 2010 Blackwell Publishing Ltd.

Page last updated: 2010-10-05

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