Skip to main content
OpenTrials
Active, Not Recruiting

NCT Number: NCT06008756

Enlicitide Decanoate (MK-0616 Oral PCSK9 Inhibitor) Cardiovascular Outcomes Study (MK-0616-015) CORALreef Outcomes

This is a phase 3, randomized, placebo-controlled study of the efficacy and safety of enlicitide decanoate, an oral proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitor, in participants with high cardiovascular risk. The primary objective is to evaluate the efficacy of enlicitide decanoate compared with placebo in increasing the time to the first occurrence of major adverse cardiovascular events (MACE) including coronary heart disease (CHD) death, ischemic stroke, myocardial infarction (MI), acute limb ischemia or major amputation, or urgent arterial revascularization.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

Notify Me

Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

CEDIC ( Site 0612), CABA, Buenos Aires, Argentina

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Meets one of the following:
  • Age ≥18 years with a history of a major atherosclerotic cardiovascular disease (ASCVD) event defined as at least 1 of the following: ≥30 days post MI (presumed Type 1 due to plaque rupture or erosion); ≥30 days post ischemic stroke (presumed due to atherosclerosis); or ≥30 days post successful peripheral (carotid or lower extremity) arterial revascularization (surgical or endovascular) or major (ankle or above) amputation due to atherosclerosis; or
  • High risk for first major ASCVD event defined as at least 1 of the following: Age ≥50 years with evidence of coronary artery disease; Age ≥50 years with evidence of atherosclerotic cerebrovascular disease; Age ≥50 years with evidence of peripheral arterial disease; or Age ≥60 years with diabetes mellitus and at least one of the following: microvascular disease or urine albumin-creatinine ratio ≥30 mg/mmol within 6 months before Visit 1, daily insulin use, or diabetes for ≥10 years
  • Has fasted lipid values (evaluated by the Central Laboratory) at Visit 1 (Screening) as follows:
  • History of major ASCVD Event: LDL-C ≥70 mg/dL (1.81 mmol/L) OR non-HDL-C ≥100 mg/dL (2.59 mmol/L)
  • High risk for first major ASCVD Event: LDL-C ≥90 mg/dL (2.33 mmol/L) OR non-HDL-C ≥120 mg/dL (3.11 mmol/L)
  • Is treated with moderate- or high-intensity statin (± nonstatin lipid-lowering therapy [LLT]) at Visit 1
  • Is on a stable dose of all background LLTs (including statin and nonstatin agents) for at least 30 days before Visit 1 (Screening) with no medication or dose changes planned during the participation in the study

Exclusion criteria

  • Has a history of homozygous familial hypercholesterolemia (FH) based on genetic or clinical criteria, compound heterozygous FH, or double heterozygous FH
  • Has New York Heart Association Class IV heart failure, last known Left Ventricular Ejection Fraction ≤25% by any imaging method, or had a Heart Failure hospitalization within 3 months before Visit 1 (Screening)
  • Has recurrent ventricular tachycardia within 3 months prior to randomization
  • Has a planned arterial revascularization procedure
  • Is undergoing or previously underwent an LDL-C apheresis program within 3 months before Visit 1 (Screening) or plans to initiate an LDL-C apheresis program
  • Was previously treated/is being treated with certain other cholesterol lowering medications, including protein convertase subtilisin/kexin type 9 (PCSK9) inhibitors without adequate washout.
  • Has a fasting triglyceride value ≥400 mg/dL (≥4.52 mmol/L) at Visit 1 (Screening)

Treatment and study plan

Enlicitide Decanoate

Drug

Enlicitide Decanoate 20 mg tablet taken by mouth.

Other names: MK-0616

Placebo

Drug

Placebo tablet matched to enlicitide decanoate taken by mouth.

Primary outcomes

  1. Blinded Period: Time to First Occurrence of Coronary Heart Disease (CHD) Death-Based Major Adverse Cardiovascular Events (MACE)-Plus

    Time frame: From date of randomization until the date of first occurrence of CHD death-based MACE-plus, assessed up to approximately 6 years

    Time to the first occurrence of CHD death-based MACE-plus, which is defined as any of the following: coronary heart disease death, myocardial infarction (MI), ischemic stroke (fatal and nonfatal), acute limb ischemia or major amputation, or urgent arterial revascularization (coronary, cerebrovascular, or peripheral).

Secondary outcomes

  1. Blinded Period: Time to First Occurrence of 3-point MACE

    Time frame: From date of randomization until the date of first occurrence of 3-point MACE, assessed up to approximately 6 years

    Time to the first occurrence of 3-point MACE (defined as cardiovascular death, MI, or ischemic stroke).

  2. Blinded Period: Time to First Occurrence of Cardiovascular (CV) Death-Based MACE Plus

    Time frame: From date of randomization until the date of first occurrence of CV death-based MACE plus, assessed up to approximately 6 years

    Time to the first occurrence of CV death-based MACE plus, defined as any of the following: cardiovascular death, MI, ischemic stroke, acute limb ischemia or major amputation, or urgent arterial revascularization (coronary, cerebrovascular, or peripheral).

  3. Blinded Period: Time to First Occurrence of CHD Death or MI

    Time frame: From date of randomization until the date of first occurrence of CHD death or MI, assessed up to approximately 6 years

    Time to the first occurrence of CHD death or MI.

  4. Blinded Period: Time to CV Death

    Time frame: From date of randomization until the date of CV death, assessed up to approximately 6 years

    Time to cardiovascular death.

  5. Blinded Period: Time to All-Cause Death

    Time frame: From date of randomization until the date of death, assessed up to approximately 6 years

    Time to all-cause death.

  6. Blinded Period: Time to CHD Death

    Time frame: From date of randomization until the date of CHD death, assessed up to approximately 6 years

    Time to CHD death.

  7. Blinded Period: Time to First Event of MI

    Time frame: From date of randomization until the date of MI, assessed up to approximately 6 years

    Time to the first occurrence of MI.

  8. Blinded Period: Time to First Event of Ischemic Stroke

    Time frame: From date of randomization until the date of first occurrence of ischemic stroke, assessed up to approximately 6 years

    Time to the first occurrence of ischemic stroke.

  9. Blinded Period: Time to First Event of Acute Limb Ischemia or Major Amputation

    Time frame: From date of randomization until the date of first occurrence of acute limb ischemia or major amputation, assessed up to approximately 6 years

    Time to the first occurrence of acute limb ischemia or major amputation.

  10. Blinded Period: Time to First Event of Urgent Arterial Revascularization

    Time frame: From date of randomization until the date of urgent arterial revascularization, assessed up to approximately 6 years

    Time to the first occurrence of urgent arterial revascularization (coronary, cerebrovascular, or peripheral).

  11. Blinded Period: Percent Change from Baseline in Low-Density Lipoprotein Cholesterol (LDL-C)

    Time frame: Baseline and Week 52

    The percent change from baseline in LDL-C.

  12. Blinded Period: Percent Change from Baseline in Apolipoprotein B

    Time frame: Baseline and Week 52

    The percent change from baseline in apolipoprotein B.

  13. Blinded Period: Percent Change from Baseline in Non-High-Density Lipoprotein Cholesterol (non-HDL-C) cholesterol

    Time frame: Baseline and Week 52

    The percent change from baseline in Non-HDL-C.

  14. Blinded Period: Percent Change from Baseline in Lipoprotein (a)

    Time frame: Baseline and Week 52

    The percent change from baseline in lipoprotein (a).

  15. Blinded Period: Number of Participants with an Adverse Event (AE)

    Time frame: Up to approximately 6 years

    An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants with AE(s) in each arm will be reported.

  16. Blinded Period: Number of Participants Discontinuing from Study Therapy Due to AE

    Time frame: Up to approximately 6 years

    An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants discontinuing due to AE(s) in each arm will be reported.

  17. Open-Label Extension (OLE): Time to First Occurrence of CHD Death-Based MACE Plus

    Time frame: From date of randomization until the date of first occurrence of CHD death-based MACE plus, assessed up to approximately 8 years

    Time to the first occurrence of CHD death-based MACE-plus, which is defined as any of the following: coronary heart disease death, MI, ischemic stroke (fatal and nonfatal), acute limb ischemia or major amputation, or urgent arterial revascularization (coronary, cerebrovascular, or peripheral).

Sponsors and collaborators

Lead sponsor

Merck Sharp & Dohme LLC

Industry

Registry information

Official study title

Phase 3 Randomized, Placebo-Controlled Clinical Study to Evaluate the Efficacy and Safety of MK-0616 in Reducing Major Adverse Cardiovascular Events in Participants at High Cardiovascular Risk

Important dates

Study start
2023
Primary completion
2029
Study completion
2031
First posted
Aug 24, 2023
Registry last updated
Apr 23, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.