Study of Efficacy and Safety of Inclisiran in Asian Participants With Atherosclerotic Cardiovascular Disease (ASCVD) or ASCVD High Risk and Elevated Low Density Lipoprotein Cholesterol (LDL-C)

Inclusion Criteria: -At screening participants with: ASCVD (including acute coronary syndrome (ACS), stable coronary heart disease, post revascularization, ischemic cardiomyopathy, ischemic stroke, transient ischemic attack (TIA), and peripheral atherosclerosis) and Serum LDL-C ≥1.8 mmol/L (≥70 mg/dL) OR ASCVD high risk (LDL-C ≥4.9 mmol/L, diabetes, high 10-year ASCVD risk assessed by Chinese ASCVD Risk Assessment Flow Chart , or high risk per local guidelines with a target LDL-C of \<100 mg/dL) and Serum LDL-C ≥2.6 mmol/L (≥100 mg/dL) * Fasting triglyceride \< 400 mg/dL (\< 4.52 mmol/L) at screening. * Participants on statins should be receiving a maximally tolerated dose . Maximum tolerated dose is defined as the maximum dose of statin that can be taken on a regular basis without intolerable AE. Intolerance to any dose of statin must be documented as historical AEs attributed to the statin in question on the source documentation and on the Medical history page of the eCRF * Participants not receiving statin must have a documented evidence of intolerance to all doses of at least 2 different statins(or the corresponding local definition of complete intolerance to statins) * Participants following lifestyle modification should be on the therapy of LDL-C lowering (such as statin monotherapy, or statin incombination with ezetimibe) with a stable dose for ≥30 days before screening and have no planned medication or dose change during study participation. * Participants are willing and able to give informed consent before initiation of any study related procedures and willing to comply with all required study procedures. Exclusion Criteria: * New York Heart Association (NYHA) class IV heart failure or last known left ventricular ejection fraction \<25%. * Cardiac arrhythmia with clinical significance within 3 months prior to randomization that is not controlled by medication or via ablation. * Major adverse cardiovascular event within 3 months prior to randomization. * Uncontrolled severe hypertension: systolic blood pressure ≥160 mmHg or diastolic blood pressure ≥100 mmHg prior to randomization despite antihypertensive therapy. * Calculated glomerular filtration rate ≤30 mL/min by estimated glomerular filtration rate (eGFR) using standardized clinical methodology. * Severe concomitant non-cardiovascular disease that carries the risk of reducing life expectancy to less than 2 years. * History of malignancy that required surgery (excluding local and wide-local excision), radiation therapy and/or systemic therapy during the three years prior to randomization. * Barrier method: Condom or Occlusive cap (e.g. diaphragm or cervical/vault caps). * Other protocol-defined inclusion/exclusion criteria may apply.