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Clinical Peptide Medicines

Enlicitide

Also referenced as: Lipfendra, MK-0616

An oral macrocyclic peptide targeting PCSK9 for LDL-cholesterol lowering.

Evidence grade
BModerate Human Evidence

Moderate Human Evidence

Regulatory status
FDA Approved for Specific Indication

Lipfendra received FDA approval in July 2026 as an adjunct to diet and exercise to lower LDL-C in adults with hypercholesterolemia, including HeFH.

Human data
Yes

Registered clinical trials exist

Last reviewed
October 27, 2026

Overview

An oral macrocyclic peptide targeting PCSK9 for LDL-cholesterol lowering.

Lipfendra received FDA approval in July 2026 as an adjunct to diet and exercise to lower LDL-C in adults with hypercholesterolemia, including HeFH.

An LDL biomarker reduction is not yet proof that this particular medicine reduces heart attacks or mortality.

Why It's Being Studied

  • Hypercholesterolemia
  • PCSK9 inhibition
  • LDL cholesterol

Mechanism of Action

In plain language

Blocking PCSK9 interaction with LDL receptors helps preserve receptors that remove LDL cholesterol from circulation.

Technical detail

Blocking PCSK9 interaction with LDL receptors helps preserve receptors that remove LDL cholesterol from circulation. An LDL biomarker reduction is not yet proof that this particular medicine reduces heart attacks or mortality.

Interactive diagram

From molecular target to clinical evidence

Tap each stage to see what happens.

Molecular target: Identify the receptor, enzyme, microbial membrane or binding site for the particular compound.

Background: Clinical Peptide Medicines

Clinical peptide medicines include endocrine treatments, antimicrobial drugs, receptor blockers and targeted diagnostic or cancer agents. They do not share one mechanism or one set of indications.

An approval belongs to a specific medicine and indication. A diagnostic tracer, an antibiotic and a hormone are not interchangeable wellness products; read each profile's own mechanism and prescribing source.

Research Areas & Routes Studied

Areas studied
  • Hypercholesterolemia
  • PCSK9 inhibition
  • LDL cholesterol
Routes used in research
  • Oral approved medicine

Evidence Summary

CORALreef studies support substantial LDL-C reduction; an enlicitide-specific cardiovascular-event benefit should not be presumed.

Evidence pyramid

Higher tiers carry more weight. Filled tiers have evidence for Enlicitide; tap to read it.

Human clinical trials
  • CORALreef studies support substantial LDL-C reduction; an enlicitide-specific cardiovascular-event benefit should not be presumed.
Source breakdown

1 cited sources.

  • Prescribing label1

Human clinical evidence

  • CORALreef studies support substantial LDL-C reduction; an enlicitide-specific cardiovascular-event benefit should not be presumed.

Reported Adverse Events in Research

  • Diarrhea and dizziness were reported in the HeFH studies; the complete label defines other safety and interaction considerations.

Limitations of Current Evidence

  • An LDL biomarker reduction is not yet proof that this particular medicine reduces heart attacks or mortality.
  • Findings apply to the product, route and population studied; they do not establish benefits or safety for unrelated wellness uses or research-vial products.

How to Read This Research

Questions to ask
  • Is this a single molecule or a family of medicines?
  • Is the use diagnostic, therapeutic or investigational?
  • Does the quoted outcome match the exact product, formulation and population?
Reading tips
  • Use the compound-specific mechanism above; this diagram describes drug development, not a shared biological pathway.
  • Historical approval, present availability and off-label use are distinct questions.
  • For radiopharmaceuticals and hospital medicines, specialist handling is part of the treatment context.
Indication
The condition and population for which a medicine is approved.
Antagonist
A compound that blocks activity at a receptor.
Radiopharmaceutical
A medicine containing a radioactive isotope for imaging or treatment.

Compare With Other Compounds

Compare side by side
EnlicitideTrofinetide
Evidence gradeB — Moderate Human EvidenceB — Moderate Human Evidence
Regulatory statusFDA Approved for Specific IndicationFDA Approved for Specific Indication
Human dataYesYes
Clinical trialsRegistered trials existRegistered trials exist
Research routesOral approved medicineOral approved medicine
Cited sources12
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Frequently Asked Questions

Research References

  • Prescribing label

    Enlicitide — prescribing label

    View Source
This page is an educational research summary. It is not medical advice, does not recommend human use, and does not provide individualised dosing. Many compounds discussed here are research use only and are not approved medicines.