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Clinical Peptide Medicines

Setmelanotide

Also referenced as: Imcivree

A melanocortin-4 receptor agonist for narrowly defined causes of obesity.

Evidence grade
BModerate Human Evidence

Moderate Human Evidence

Regulatory status
FDA Approved for Specific Indication

The March 2026 FDA label includes acquired hypothalamic obesity from age 4 and qualifying BBS or POMC/PCSK1/LEPR deficiency from age 2, subject to label criteria.

Human data
Yes

Registered clinical trials exist

Last reviewed
October 27, 2026

Overview

A melanocortin-4 receptor agonist for narrowly defined causes of obesity.

The March 2026 FDA label includes acquired hypothalamic obesity from age 4 and qualifying BBS or POMC/PCSK1/LEPR deficiency from age 2, subject to label criteria.

Genetic and diagnostic eligibility matter; results cannot be transferred to common obesity or cosmetic use.

Why It's Being Studied

  • Genetic obesity
  • Acquired hypothalamic obesity
  • Central appetite signalling

Mechanism of Action

In plain language

Central MC4-receptor activation acts on appetite pathways disrupted in particular genetic or hypothalamic disorders.

Technical detail

Central MC4-receptor activation acts on appetite pathways disrupted in particular genetic or hypothalamic disorders. Genetic and diagnostic eligibility matter; results cannot be transferred to common obesity or cosmetic use.

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
  • Genetic obesity
  • Acquired hypothalamic obesity
  • Central appetite signalling
Routes used in research
  • Subcutaneous approved medicine

Evidence Summary

Clinical studies support weight and hunger responses in the specifically approved populations, not routine obesity treatment.

Evidence pyramid

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

Human clinical trials
  • Clinical studies support weight and hunger responses in the specifically approved populations, not routine obesity treatment.
Source breakdown

1 cited sources.

  • Prescribing label1

Human clinical evidence

  • Clinical studies support weight and hunger responses in the specifically approved populations, not routine obesity treatment.

Reported Adverse Events in Research

  • Pigmentation and nevus changes, sexual-arousal effects, depression and suicidal ideation require attention.

Limitations of Current Evidence

  • Genetic and diagnostic eligibility matter; results cannot be transferred to common obesity or cosmetic use.
  • 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
SetmelanotideTrofinetide
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 routesSubcutaneous approved medicineOral approved medicine
Cited sources12
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Frequently Asked Questions

Research References

  • Prescribing label

    Setmelanotide — 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.