Functional Improvement of Coronary Artery Narrowing by Cholesterol Reduction With a PCSK9 Antibody

In a large number of patients who experienced an acute coronary syndrome, multiple narrowings of the coronary arteries are identified. Mechanical treatment of the infarct related artery is indisputable, yet mechanical treatment of other bystander lesions in non-infarct related arteries is controversial. Low-density lipoprotein cholesterol can speed up the formation of these coronary artery narrowings, and can increase the risk of a second event. The investigators want to investigate if treating patients with the new cholesterol-lowering drug evolocumab in addition to statin therapy ameliorates blood flow and reduces atherosclerotic plaque size compared with placebo. Improved blood flow and a reduction of plaque size could prevent the need for additional stenting or surgery.