There is a strong need to reduce the risk of cardiovascular disease (CVD) beyond the use of statins that lower low-density
lipoprotein cholesterol (LDL-C). The inverse relationship of high-density lipoprotein cholesterol (HDL-C) with cardiovascular disease
suggests HDL-C raising therapy as a novel target. This review discusses the role of HDL-C in atherogenesis as well as the promise of
cholesteryl ester transfer protein (CETP) inhibition in CVD prevention. While genetic studies show conflicting results on correlations between
HDL-C and CVD, experimental studies have yielded sufficient encouraging data to proceed with the development of HDL-C raising
strategies. CETP inhibition has been shown to successfully increase HDL-C levels in man. However, the first CETP inhibitor tested
in phase III trials increased mortality possibly due to torcetrapib-specific vasopressor effects. More recently, dalcetrapib did not show an
effect on CVD outcome while raising HDL-C by 30%, thereby refuting the HDL-C hypothesis. Anacetrapib and evacetrapib are currently
tested in phase III clinical trials and have not shown adverse effects thus far. Both compounds not only increase HDL-C by 129-151%,
they also decrease LDL-C (36-41%) and anacetrapib lowers Lp(a) (17%). Combined, these effects are anticipated to decrease CVD risk
and the results will be revealed in 2017.
Keywords: Atherosclerosis, HDL, LDL, cardiovascular risk, lipids, lipoproteins. cholesterol, dyslipidemia.
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Published on: 01 April, 2013
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