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Arch Med Sci. 2011 Oct;7(5):767-75. doi: 10.5114/aoms.2011.25550. Epub 2011 Nov 8.

Effectiveness and tolerability of ezetimibe co-administered with statins versus statin dose-doubling in high-risk patients with persistent hyperlipidemia: The EZE(STAT)2 trial.

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  • 1Cambridge Cardiac Care Centre, Cambridge, Ontario, Canada.

Abstract

INTRODUCTION:

When a standard dose of statins fails to achieve lipid control in patients at high risk for coronary artery disease (CAD), increasing the statin dosage or co-administration of additional agents is recommended. The aim of this study was to compare the safety and lipid-lowering efficacy of doubling the standard statin dose (STAT2) to that of co-administering ezetimibe 10 mg/day (EZE+statin) in Canadian patients at high CAD risk with persistent hyperlipidemia upon statin treatment.

MATERIAL AND METHODS:

Six-week, open-label, randomized, multicentre study. The primary outcome was the change in plasma LDL-C and secondary measures included the change in additional lipid parameters. Safety was assessed with the incidence of emergent adverse events (AEs).

RESULTS:

Eight hundred eighty-five patients (EZE+statin, n=586; STAT2, n=299) completed the study. The mean (SD) percent change in low-density lipoprotein cholesterol (LDL-C) was - 30.9% (18.2) for the EZE+statin group and -18.4% (19.0) for the STAT2 group (p=0.001). Percent and absolute decreases in total cholesterol (TC), triglycerides and the TC to high-density lipoprotein cholesterol ratio (TC/HDL-C) were significantly greater for the EZE+statin group (p = 0.001). After 6 weeks of treatment, 70% of the patients in the EZE+statin group and 48% of patients in the STAT2 group (OR=2.45, p<0.001) achieved target LDL-C levels of<2.5 mmol/l. Incidence of AEs was similar between groups, with the exception of a higher incidence of muscle disorders in the STAT2 group.

CONCLUSIONS:

In patients at high CAD risk who are above the LDL-C target while on statin monotherapy, co-administration of ezetimibe is well tolerated and more effective in improving the lipid profile compared to doubling the existing statin dose.

KEYWORDS:

ezetimibe; hypercholesterolemia; low-density lipoprotein cholesterol; statin

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