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Peptide library / Heart & blood / Enlicitide

In clinical trialsHeart & blood

Enlicitide

An investigational oral PCSK9 inhibitor from Merck that sharply lowers LDL cholesterol.

Body system
Heart & blood
Status
In clinical trials
Strongest evidence
Large trials
Also known as
MK-0616

Effects studied or claimed

What it is used or promoted for, and where each effect has actually been seen

  • Lower LDL cholesterolLarge trials
  • Cardiovascular eventsLarge trials

How it is thought to work

Enlicitide is a macrocyclic peptide taken as a daily pill. It blocks PCSK9, so the liver clears more LDL cholesterol.

What the evidence shows

Phase 3 trials reported LDL reductions of roughly half or more compared with placebo. An outcomes trial is ongoing.

Safety and unknowns

Similar side effect rates to placebo in trials so far.

Regulatory status

Not approved at the time of writing. Check the FDA database for the latest.

Regulatory status changes quickly. This entry was last reviewed on 27 October 2026. Confirm current status with the FDA before relying on it.

More in Heart & blood

General information, not medical advice. Do not buy or inject unregulated peptides.