The primary objective of this trial is to evaluate the effect of olpasiran, compared to placebo, on non-calcified plaque (NCP) volume as measured by Coronary Computed Tomography Angiography (CCTA).

Inclusion Criteria:

• Age 35 to ≤ 80 years.
• Lp(a) ≥ 200 nmol/L during screening.
• Angiographic evidence of coronary artery disease in at least one major epicardial vessel on screening CCTA.
• History of myocardial infarction (presumed type 1 event due to plaque rupture/erosion) and/or coronary revascularization by percutaneous coronary intervention.

Exclusion Criteria:

• History of coronary artery bypass graft (CABG).
• Moderate to severe renal dysfunction.
• Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) > 3 x upper limit of normal (ULN), or total bilirubin (TBL) > 2 x ULN during screening.
• History of hemorrhagic stroke.
• History of major bleeding disorder.
• Planned cardiac surgery or arterial revascularization.
• Severe heart failure.
• Current, recent, or planned lipoprotein apheresis.
• Previously received ribonucleic acid therapy specifically targeting Lp(a).

De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.

Data sharing requests relating to this study will be considered beginning 18 months after the study has ended and either 1) the product and indication (or other new use) have been granted marketing authorization in both the US and Europe, or 2) clinical development for the product and/or indication discontinues and the data will not be submitted to regulatory authorities. There is no end date for eligibility to submit a data sharing request for this study.

Qualified researchers may submit a request containing the research objectives, the Amgen product(s) and Amgen study/studies in scope, endpoints/outcomes of interest, statistical analysis plan, data requirements, publication plan, and qualifications of the researcher(s). In general, Amgen does not grant external requests for individual patient data for the purpose of re-evaluating safety and efficacy issues already addressed in the product labelling. Requests are reviewed by a committee of internal advisors, and if not approved, may be further arbitrated by a Data Sharing Independent Review Panel. Upon approval, information necessary to address the research question will be provided under the terms of a data sharing agreement. This may include anonymized individual patient data and/or available supporting documents, containing fragments of analysis code where provided in analysis specifications. Further details are available at the URL below.