Evolocumab in Patients without a Previous Myocardial Infarction or Stroke
Bibliographic record
Abstract
BACKGROUND: The proprotein convertase subtilisin-kexin type 9 (PCSK9) inhibitor evolocumab reduces the risk of major adverse cardiovascular events (MACE) among patients with a previous myocardial infarction, stroke, or symptomatic peripheral artery disease. The effect of evolocumab on the risk of MACE among patients without a previous myocardial infarction or stroke is unknown. METHODS: We conducted an international, double-blind, randomized, placebo-controlled trial of evolocumab in patients with atherosclerosis or diabetes and without a previous myocardial infarction or stroke who had a low-density lipoprotein cholesterol level of at least 90 mg per deciliter. Patients were randomly assigned in a 1:1 ratio to receive evolocumab at a dose of 140 mg every 2 weeks or placebo. The two primary end points were a composite of death from coronary heart disease, myocardial infarction, or ischemic stroke (3-point MACE) and a composite of 3-point MACE or ischemia-driven arterial revascularization (4-point MACE). RESULTS: A total of 12,257 patients were randomly assigned to receive evolocumab (6129 patients) or placebo (6128) and were included in the efficacy analyses. The median age of the patients was 66 years, 43% were women, and 93% were White. The median follow-up was 4.6 years. A 3-point MACE event occurred in 336 patients (5-year Kaplan-Meier estimate, 6.2%) in the evolocumab group, as compared with 443 (8.0%) in the placebo group (hazard ratio, 0.75; 95% confidence interval [CI], 0.65 to 0.86; P<0.001). A 4-point MACE event occurred in 747 patients (5-year Kaplan-Meier estimate, 13.4%) in the evolocumab group, as compared with 907 (16.2%) in the placebo group (hazard ratio, 0.81; 95% CI, 0.73 to 0.89; P<0.001). No evidence of a between-group difference was seen in the incidence of safety events. CONCLUSIONS: PCSK9 inhibition with evolocumab led to a lower risk of first cardiovascular events than placebo among patients with atherosclerosis or diabetes and without a previous myocardial infarction or stroke. (Funded by Amgen; VESALIUS-CV ClinicalTrials.gov number, NCT03872401.).
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".