Long-term test of maridebart cafraglutide for obesity and type 2 diabetes
Official title: A Phase 3, Randomized, Double-Blind Extension Trial to Evaluate the Long-term Efficacy, Safety, and Tolerability of Maridebart Cafraglutide in Participants With Obesity or Overweight With Type 2 Diabetes Mellitus
Run by Amgen · NCT07684144 · Data updated 2026-11-12
This extension study tests whether maridebart cafraglutide remains effective and safe for people with obesity and type 2 diabetes who previously completed a parent trial.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 99 Years |
| Sex | All |
| Enrollment | 950 (estimated) |
| Sponsor | Amgen Industry-sponsored |
| Locations | 45 sites (Gilbert, Arizona and 44 other locations) |
| Status | Recruiting |
| Started | July 29, 2026 |
| Main results expected | December 26, 2027 |
| Study ends | March 19, 2028 |
| Registry record updated | October 5, 2026 |
| Trial ID | NCT07684144 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with obesity and type 2 diabetes who completed the parent trial and meet continuity criteria, including recent randomization and use of contraception during treatment.
✕Probably not a fit
Individuals who do not respond to treatment or who discontinue due to adverse effects or other exclusion criteria may not experience benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a Phase 3 extension trial evaluating the long-term efficacy, safety, and tolerability of maridebart cafraglutide in adults with obesity and type 2 diabetes. Participants are those who completed the prior study and met specific criteria, continuing or resuming treatment with either maridebart cafraglutide or placebo. The study compares long-term outcomes, including weight and metabolic parameters, while monitoring adverse events. Locations include sites in Arizona and California. Lead sponsor is Amgen, with no listed collaborators.
Why it matters
Potential benefit: Participants may experience continued weight loss and improved metabolic control if the treatment remains effective.
How similar studies have gone: Prior trials of similar therapies have shown weight and glucose benefits in comparable populations, supporting feasibility of extension studies.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Signed informed consent form (ICF) indicating compliance with the requirements and restrictions listed in the ICF and this protocol. * Participants completing Study 20210184 must meet the following criteria: * Completed the Week 72 visit in Study 20210184. * Did not permanently discontinue the investigational product in the parent trial (20210184). * Randomized within 7 days of week 72 visit in the parent trial. * Participants must use protocol-specified contraception during treatment and for 16 weeks after the last dose of trial intervention. Exclusion Criteria: * Planned (during the trial) surgical, endoscopic, or device-based treatment for obesity. * Body mass index (BMI) ≤ 18.5 kilograms per meter square (kg/m\^2). * Participant has known sensitivity to any of the products or components to be administered during dosing. * History of ischemic optic neuropathy. * Any malignancy diagnosed during the parent trial, except for the following treated with curative intent: * Nonmelanoma skin cancers * Breast ductal carcinoma in situ * Cervical carcinoma in situ * Prostate cancer in situ * Newly identified (during the parent trial) multiple endocrine neoplasia syndrome type 2, or family history (first-degree relative\[s\]) history of medullary thyroid carcinoma (MTC). * Patient Health Questionnaire-9 (PHQ-9) score ≥ 15 at the Week 72 visit from the parent trial (20210184) before randomization. * Any suicidal ideation (category 4 or 5) or any suicidal behavior on the Columbia-Suicide Severity Rating Scale (C-SSRS), Since Last Visit version, at the Week 72 visit from the parent trial before randomization. * Participant unlikely to be able to complete all protocol-required procedures, restrictions and requirements, in the judgment of the individual and investigator. * History or evidence of any other clinically significant disorder, condition, disease (including, but not limited to known drug or alcohol abuse, eating disorders, and conditions identified during the parent trial) that, in the opinion of the investigator, would pose a risk to participant safety. * Currently pregnant (confirmed with positive pregnancy test) or breastfeeding or planning to become pregnant or breastfeed while on trial until an additional 16 weeks after the last dose of trial intervention. * Major surgical procedures planned during the trial. * Participants with minor surgical procedures (not requiring general anesthesia or deep sedation) planned during the trial may be eligible at the discretion of the investigator. * Investigative site personnel directly affiliated with the trial and/or their immediate family (ie, spouse, parent, child, or sibling, whether biological or legally adopted).
Where it's running
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Gilbert Center for Family Medicine
Gilbert, Arizona, United States Recruiting -
San Fernando Valley Health Institute
Canoga Park, California, United States Recruiting -
Core Healthcare Group
Cerritos, California, United States Recruiting -
Velocity Clinical Research Chula Vista
La Mesa, California, United States Recruiting -
Paradigm Clinical Research
Modesto, California, United States Recruiting -
Empire Clinical Research
Pomona, California, United States Recruiting
Show 39 more locations
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San Marcus Research Clinic Inc
Miami, Florida, United States Recruiting -
Optimus U Corporation
Miami, Florida, United States Recruiting -
Indago Research and Health Center
Miami Lakes, Florida, United States Recruiting -
Florida Institute for Clinical Research
Orlando, Florida, United States Recruiting -
Encore Medical Research of Weston LLC
Weston, Florida, United States Recruiting -
Conquest Research - Winter Park
Winter Park, Florida, United States Recruiting -
Endeavor Health
Skokie, Illinois, United States Recruiting -
Iowa Diabetes Research
West Des Moines, Iowa, United States Recruiting -
JCCT- Juno Northwest Houston
Lenexa, Kansas, United States Recruiting -
Alliance for Multispecialty Research Newton
Newton, Kansas, United States Recruiting -
Alliance for Multispecialty Research LLC
Wichita, Kansas, United States Recruiting -
Ima Clinical Research- Monroe
Monroe, Louisiana, United States Recruiting -
Annapolis Internal Medicine, LLC
Annapolis, Maryland, United States Recruiting -
Alliance for Multispecialty Research - Kansas City
Kansas City, Missouri, United States Recruiting -
Palm Research Center Inc
Las Vegas, Nevada, United States Recruiting -
Premier Research
Trenton, New Jersey, United States Recruiting -
West Clinical Research
Morehead City, North Carolina, United States Recruiting -
Velocity Clinical Research - Cincinnati
Cincinnati, Ohio, United States Recruiting -
Velocity Clinical Research - Springdale
Cincinnati, Ohio, United States Recruiting -
Velocity Clinical Research - Providence
East Greenwich, Rhode Island, United States Recruiting -
Elligo Clinical Research Center
Austin, Texas, United States Recruiting -
Johnson County Clinical Trials Juno Bellaire
Bellaire, Texas, United States Recruiting -
Osvaldo A Brusco MD PA
Corpus Christi, Texas, United States Recruiting -
Soma Clinical Trials, LLC
Denison, Texas, United States Recruiting -
Manassas Clinical Research Center Inc
Burke, Virginia, United States Recruiting -
Hamilton Medical Research Group
Hamilton, Ontario, Canada Recruiting -
Mikannohana Clinic, Diabetes, Endocrinology and Metabolism
Matsuyama, Ehime, Japan Recruiting -
Morizono Medical Clinic
Kitakyusyu-shi, Fukuoka, Japan Recruiting -
Mazda Hospital of Mazda Motor Corporation
Aki-gun, Hiroshima, Japan Recruiting -
Nakamoto Medical Clinic
Mito, Ibaraki, Japan Recruiting -
Nakakinen Clinic
Naka, Ibaraki, Japan Recruiting -
Ohishi Naika Clinic
Tsuchiura-shi, Ibaraki, Japan Recruiting -
Morinaga Ueno Clinic
Kumamoto, Kumamoto, Japan Recruiting -
Shiraiwa Medical Clinic
Kashiwara-shi, Osaka, Japan Recruiting -
Suruga Clinic
Shizuoka, Shizuoka, Japan Recruiting -
Yutenji Medical Clinic
Meguro-ku, Tokyo, Japan Recruiting -
Medical Corporation Ouitsukai Kanno Naika
Mitaka-shi, Tokyo, Japan Recruiting -
Latin Clinical Trial Center
San Juan, Puerto Rico Recruiting -
FutureMeds Birmingham
Birmingham, United Kingdom Recruiting
Study contacts
- Study coordinator: Amgen Call Center
- Email: medinfo@amgen.com
- Phone: 866-572-6436
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Maridebart cafraglutide in people who switched from weekly GLP-1 receptor agonists
This study tests how much maridebart cafraglutide appears in the blood after people with overweight or obesity switch from weekly GLP-1 receptor agonists.
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.