Evaluation of Effect of Alirocumab on Coronary Atheroma Volume in Japanese Patients Hospitalized for Acute Coronary Syndrome With Hypercholesterolemia

Primary Objective: To compare the efficacy of alirocumab (Praluent®) with standard of care (SoC) on coronary atheroma progression (percent change in normalized total atheroma volume \[TAV\]) after 9 months of treatment in participants who had acute coronary syndrome (ACS) within 4 weeks prior to randomization, with hypercholesterolemia treated with statin. Secondary Objectives: * To compare the efficacy of alirocumab (Praluent®) with SoC on secondary endpoints including absolute change in percent atheroma volume and normalized TAV after 9 months of treatment. * To evaluate the efficacy of alirocumab (Praluent®) on low-density lipoprotein cholesterol (LDL-C), apolipoprotein B, triglycerides, non-high-density lipoprotein cholesterol and lipoprotein (a) after 9 months treatment. * To evaluate the safety of alirocumab (Praluent®) including the occurrence of cardiovascular events (coronary heart disease death, non-fatal myocardial infarction, fatal and non-fatal ischemic stroke, unstable angina requiring hospitalization) throughout the study.