Evolocumab to Reduce First Major Cardiovascular Events in Patients Without Known Significant Atherosclerosis and With Diabetes

Intensive lowering of low-density lipoprotein cholesterol (LDL-C) levels with PCSK9 (proprotein convertase subtilisin/kexin type 9) inhibitors for cardiovascular event reduction has largely been reserved for patients with significant atherosclerosis.

To investigate whether evolocumab could prevent a first major cardiovascular event (MACE) in patients without known significant atherosclerosis. Design, Setting, and Participants: VESALIUS-CV was a randomized, double-blind, placebo-controlled trial of evolocumab conducted across 774 sites in 33 countries and enrolling 12 257 patients with no prior myocardial infarction or stroke, LDL-C level 90 mg/dL or greater, and qualifying atherosclerosis or high-risk diabetes. This prespecified subgroup analysis examined outcomes in patients without known significant atherosclerosis (none of the following: prior arterial revascularization, arterial stenosis ≥50%, or coronary artery calcium score ≥100 Agatston units), all of whom had diabetes. Enrollment started in June 2019 and the last patient visit was July 2025, with a median follow-up of 4.8 years. Intervention: Patients were randomized in a 1:1 ratio to subcutaneous administration of either evolocumab (140 mg every 2 weeks) or matching placebo added to optimally tolerated statin therapy. Main Outcomes and Measures: The dual primary end points were composites of coronary heart disease death, myocardial infarction, or ischemic stroke (3-P MACE) and 3-P MACE plus ischemia-driven arterial revascularization (4-P MACE). Secondary end points included all-cause mortality.