期刊
CLINICAL CARDIOLOGY
卷 42, 期 9, 页码 829-838出版社
WILEY
DOI: 10.1002/clc.23220
关键词
atherosclerotic cardiovascular disease; docosahexaenoic acid; eicosapentaenoic acid; icosapent ethyl
资金
- Amarin Corporation
Patients with established atherosclerotic cardiovascular (CV) disease remain at increased risk of major adverse cardiovascular events even during optimal lipid-lowering therapy. Recent studies using the methods of Mendelian randomization, as well as analyses of data from large statin trials, have concluded that elevated triglyceride (TG) levels contribute to that increased risk. Omega-3 polyunsaturated fatty acids (omega-3 PUFAs) from fish and shellfish (eicosapentaenoic acid [EPA] and docosahexaenoic acid [DHA]) reduce TG levels when added to the diet in sufficient amounts, and they have favorable effects on several other markers of CV risk. However, trials of omega-3 PUFAs have had inconsistent findings regarding CV risk reduction. Recently, the REDUCE-IT (Reduction of Cardiovascular Events with EPA-Intervention Trial) trial reported that treatment of such high-risk patients with icosapent ethyl, a purified and stabilized ethyl ester of EPA, reduced the risk of the trial's primary CV endpoint by 25% (95% confidence intervals [CI], 32%-17%; P < .001). To appreciate the clinical implications of this result, it is important to understand how the REDUCE-IT trial differed from previous trials, especially with regard to patient enrollment criteria and treatment dosing. We discuss these design features relative to other trials. TG lowering can account for only part of the risk reduction seen with icosapent ethyl; we also consider other potential contributory mechanisms.
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