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Phase 3 Completed N=18,924 Randomized Double-blind Prevention

ODYSSEY Outcomes: Evaluation of Cardiovascular Outcomes After an Acute Coronary Syndrome During Treatment With Alirocumab

Source: ClinicalTrials.gov NCT01663402 ↗
Enrolled (actual)
18,924
Serious AEs
24.1%
Results posted
Mar 2019
Primary outcomePrimary: Time to First Occurrence of Major Adverse Cardiovascular Event (MACE); Percentage of Observed Participants With Outcome Measure Events During the Study — 11.1; 9.5 percentage of participants — p=0.0003
◆ Published Evidence
Established
22citations · ~22 / year
Relation of Low-Density Lipoprotein Cholesterol, High-Sensitivity C-Reactive Protein, and Lipoprotein(a) Each to Future Cardiovascular Events and Death After Acute Coronary Syndrome on High-Intensity Statin Therapy: An Analysis of the Placebo Arm of ODYSSEY OUTCOMES.
Circulation · 2025 · Open access · Likely link

Summary

Primary Objective: To compare the effect of alirocumab with placebo on the occurrence of cardiovascular (CV) events (composite endpoint of coronary heart disease (CHD) death, non-fatal myocardial infarction (MI), fatal and non-fatal ischemic stroke, unstable angina (UA) requiring hospitalization) in participants who experienced an acute coronary syndrome (ACS) event 4 to 52 weeks prior to randomization and were treated with evidence-based medical and dietary management of dyslipidemia. Secondary Objectives: * To evaluate the effect of alirocumab on secondary endpoints (any CHD event , major CHD event, any CV event, composite of all cause mortality/non-fatal MI/non-fatal ischemic stroke, CHD deaths, CV deaths, all cause mortality). * To evaluate the safety and tolerability of alirocumab. * To evaluate the effect of alirocumab on lipid parameters.

Linked Publications (5)

  • Relation of Low-Density Lipoprotein Cholesterol, High-Sensitivity C-Reactive Protein, and Lipoprotein(a) Each to Future Cardiovascular Events and Death After Acute Coronary Syndrome on High-Intensity Statin Therapy: An Analysis of the Placebo Arm of ODYSSEY OUTCOMES.
    Circulation · 2025 · 22 citations · Open access · Likely link
  • Oxidized Phospholipids, Lipoprotein(a), and Cardiovascular Outcomes After Acute Coronary Syndrome.
    Circulation · 2025 · 5 citations · Likely link
  • Multiplex Apolipoprotein Panel Improves Cardiovascular Event Prediction and Cardiovascular Outcome by Identifying Patients Who Benefit From Targeted PCSK9 Inhibitor Therapy.
    Arteriosclerosis, thrombosis, and vascular biology · 2025 · 3 citations · Open access · Likely link
  • Effect of PCSK9 Inhibition With Alirocumab in Patients With Probable Familial Hypercholesterolemia or Type III Hyperlipoproteinemia: Results From the ODYSSEY OUTCOMES Trial.
    Journal of the American Heart Association · 2025 · 1 citation · Open access · Likely link
  • Alirocumab and chest pain after acute coronary syndrome: An analysis of ODYSSEY OUTCOMES.
    American journal of preventive cardiology · 2024 · 1 citation · Open access · Likely link

Outcome Measures

OutcomeResultp-value
PRIMARY
Time to First Occurrence of Major Adverse Cardiovascular Event (MACE); Percentage of Observed Participants With Outcome Measure Events During the Study
11.1; 9.5 0.0003 sig
SECONDARY
Time to First Occurrence of Any Coronary Heart Disease Event; Percentage of Observed Participants With Outcome Measure Events During the Study
14.3; 12.7 0.0013 sig
SECONDARY
Time to First Occurrence of Any Major Coronary Heart Disease Event; Percentage of Observed Participants With Outcome Measure Events During the Study
9.5; 8.4 0.0060 sig
SECONDARY
Time to First Occurrence of Any Cardiovascular Event; Percentage of Observed Participants With Outcome Measure Events During the Study
15.6; 13.7 0.0003 sig
SECONDARY
Time to First Occurrence of All-Cause Mortality, Non-Fatal Myocardial Infarction, Non-Fatal Ischemic Stroke; Percentage of Observed Participants With Outcome Measure Events During the Study
11.9; 10.3 0.0003 sig
SECONDARY
Time to Coronary Heart Disease Death; Percentage of Observed Participants With Outcome Measure Events During the Study
2.3; 2.2 0.3824
SECONDARY
Time to Cardiovascular Death; Percentage of Observed Participants With Outcome Measure Events During the Study
2.9; 2.5
SECONDARY
Time to All-Cause Death; Percentage of Observed Participants With Outcome Measure Events During the Study
4.1; 3.5
SECONDARY
Time to First Occurrence of Any Non-Fatal Myocardial Infarction; Percentage of Observed Participants With Outcome Measure Events During the Study
7.6; 6.6
SECONDARY
Time to First Occurrence of Fatal or Any Non-Fatal Ischemic Stroke; Percentage of Observed Participants With Outcome Measure Events During the Study
1.6; 1.2
SECONDARY
Time to First Occurrence of Any Unstable Angina Requiring Hospitalization; Percentage of Observed Participants With Outcome Measure Events During the Study
0.6; 0.4
SECONDARY
Time to First Occurrence of Any Ischemia-Driven Coronary Revascularization Procedure; Percentage of Observed Participants With Outcome Measure Events During the Study
8.8; 7.7
SECONDARY
Time to First Occurrence of Any Congestive Heart Failure (CHF) Requiring Hospitalization; Percentage of Observed Participants With Outcome Measure Events During the Study
1.9; 1.9

Eligibility Criteria

Inclusion criteria

Recently (< 52 weeks) hospitalized for ACS.

Exclusion criteria

  • Age < 40 years.
  • ACS event occurring more than 52 weeks prior to randomization visit.
  • LDL-C likely to be <70 mg/dL (<1.81 mmo/L), and apolipoprotein B (ApoB) <80 mg/dL (<0.8 g/L), and non - high-density lipoprotein cholesterol (HDL-C) <100 mg/dL (<2.59 mmol/L) with evidence-based medical and dietary management of dyslipidemia.

The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.

View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT01663402) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.

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