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Epidemiologic data clearly show an inverse correlation between high-density lipoprotein (HDL) cholesterol levels and coronary artery disease (CAD). Yet, few drugs are known to increase HDL levels, and achieving definitive improvement in clinical outcomes with HDL-raising agents remains elusive. The AIM-HIGH trial was halted when raising HDL levels with niacin failed to show any clinical benefit (JW Gen Med Jun 7 2011); data from the HPS-2-THRIVE trial of niacin are forthcoming. Raising HDL levels via cholesterol ester transfer protein (CETP) inhibition initially showed promise, but the ILLUMINATE trial of the CETP inhibitor torcetrapib was stopped early because of increased mortality in the study-drug arm (JW Cardiol Nov 5 2007).
Investigato…