Retatrutide
    Editorial Safety Coverage

    Retatrutide Plateau

    Published April 3, 2026•Updated August 24, 2026

    Retatrutide is an investigational medication in clinical trials. It is not FDA-approved, is not legally compoundable, and is not available through Trimi. Trimi does not offer it and has no plans to. This article is editorial safety coverage for people researching the drug-development pipeline.

    According to the 2023 NEJM phase 2 trial (Jastreboff et al.), retatrutide produced a mean weight reduction of up to 24.2% at 48 weeks at the highest dose, and the authors noted that weight reduction at the higher doses had not yet leveled off when the trial ended.

    This article is general information, not medical advice. Weight loss results vary from person to person, and trial averages do not predict any individual outcome. Consult a licensed clinician about any medication decision, including what to do when weight loss stalls.

    Related Reading

    Sources & References

    1. Jastreboff AM et al. Triple-Hormone-Receptor Agonist Retatrutide for Obesity: A Phase 2 Trial. NEJM 2023. pubmed.ncbi.nlm.nih.gov/37366315
    2. Wilding JPH et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP 1). NEJM 2021. pubmed.ncbi.nlm.nih.gov/33567185
    3. Jastreboff AM et al. Tirzepatide Once Weekly for the Treatment of Obesity (SURMOUNT-1). NEJM 2022. pubmed.ncbi.nlm.nih.gov/35658024
    4. Fothergill E et al. Persistent metabolic adaptation 6 years after "The Biggest Loser" competition. Obesity 2016. pubmed.ncbi.nlm.nih.gov/27136388
    5. U.S. Food and Drug Administration. FDA's Concerns with Unapproved GLP-1 Drugs Used for Weight Loss. fda.gov: unapproved GLP-1 drugs
    6. ClinicalTrials.gov, U.S. National Library of Medicine. clinicaltrials.gov

    Medically Reviewed

    TMRT

    Trimi Medical Review Team

    Clinical review workflow for GLP-1 safety, dosing, and access content

    Team-based medical review process documented in Trimi's Medical Review Policy

    Last reviewed: August 24, 2026

    TCCT

    Written by Trimi Clinical Content Team

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    Our clinical content team includes registered nurses, pharmacists, and medical writers who specialize in translating complex medical information into clear, actionable guidance for patients.

    Medically reviewed by Trimi Medical Review Team, Clinical review workflow for GLP-1 safety, dosing, and access content

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    Scientific References

    1. Garvey WT, Mechanick JI, Brett EM, et al. (2024). American Association of Clinical Endocrinology / American College of Endocrinology Comprehensive Clinical Practice Guidelines for Medical Care of Patients with Obesity. Endocrine Practice.Read StudyDOI: 10.4158/EP161365.GL
    2. American Heart Association (2021). Obesity and Cardiovascular Disease: A Scientific Statement From the American Heart Association. Circulation.Read StudyDOI: 10.1161/CIR.0000000000000973
    3. Apovian CM, Aronne LJ, Bessesen DH, et al. (2015). Pharmacological Management of Obesity: An Endocrine Society Clinical Practice Guideline. Journal of Clinical Endocrinology & Metabolism.Read StudyDOI: 10.1210/jc.2014-3415

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