Clinical trial Recruiting at 45 sites Phase 3 Interventional Ages 18 to 99

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.

More Obesity trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years to 99 Years
SexAll
Enrollment950 (estimated)
SponsorAmgen
Industry-sponsored
Locations45 sites (Gilbert, Arizona and 44 other locations)
StatusRecruiting
StartedJuly 29, 2026
Main results expectedDecember 26, 2027
Study endsMarch 19, 2028
Registry record updatedOctober 5, 2026
Trial IDNCT07684144 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

  • 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
  • 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.