Long-term test of maridebart cafraglutide in people who are overweight or have obesity
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
Run by Amgen · NCT07684235 · Data updated 2026-11-12
This trial tests maridebart cafraglutide versus placebo to see if long-term treatment helps people who are overweight or obese manage weight safely and tolerably.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 99 Years |
| Sex | All |
| Enrollment | 3200 (estimated) |
| Sponsor | Amgen Industry-sponsored |
| Locations | 92 sites (Anniston, Alabama and 91 other locations) |
| Status | Recruiting |
| Started | July 23, 2026 |
| Main results expected | December 26, 2027 |
| Study ends | March 19, 2028 |
| Registry record updated | October 5, 2026 |
| Trial ID | NCT07684235 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with obesity or overweight who completed the parent trial and its 72-week visit, meet contraception requirements, and have not permanently discontinued the intervention.
✕Probably not a fit
Individuals who do not respond to the medication, cannot tolerate it, or do not fit the long-term safety criteria may not 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 study evaluating the long-term efficacy, safety, and tolerability of maridebart cafraglutide in adults with obesity or overweight who completed a prior trial. Participants will be randomized to receive maridebart cafraglutide or placebo with continued monitoring for extended outcomes beyond the original study period. The study includes adults who completed the parent trial, adhered to the protocol, and agree to contraception during treatment and for 16 weeks after the last dose. Exclusion criteria include planned obesity-related procedures, BMI ≤ 18.5, hypersensitivity to study components, history of ischemic optic neuropathy, or malignancies treated conservatively in the prior trial. Primary sponsor is Amgen, with multiple sites in Alabama recruiting eligible participants.
Why it matters
Potential benefit: If successful, participants could experience sustained weight loss and improved safety/tolerability with maridebart cafraglutide over the long term.
How similar studies have gone: Prior trials with similar long-term weight management therapies have shown potential benefits, though the extension nature of this study adds new long-duration data.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Signed informed consent form (ICF) which includes compliance with the requirements and restrictions listed in the ICF and in this protocol. * Completed the parent trial (2010181) * Completed week 72 visit in parent trial * Did not permanently discontinue trial intervention in parent trial * Randomized within 7 Days of week 72 visit in the parent trial * Participants must use protocol-specified contraception during treatment, and for an additional 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 ≤ 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 parent trial (20210181) except for the following treated with curative intent: nonmelanoma skin cancers, breast ductal carcinoma in situ, cervical carcinoma in situ, or prostate cancer in situ. * Newly identified (i.e., identified during 20210181) multiple endocrine neoplasia syndrome type 2 or family (first-degree relative\[s\]) history of medullary thyroid cancer. * Patient Health Questionnaire-9 (PHQ-9) score of ≥ 15 at week 72 visit from parent trial before randomization * Any suicidal ideation of category 4 or 5 OR any suicidal behavior on the Columbia-Suicide Severity Rating Scale (C-SSRS) Since Last Visit version at week 72 visit from 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, or 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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Pinnacle Research Group LLC
Anniston, Alabama, United States Recruiting -
Alliance For Multispecialty Research - Daphne
Daphne, Alabama, United States Recruiting -
Alliance for Multispecialty Research Mobile
Mobile, Alabama, United States Recruiting -
Ark Clinical Research- Tustin
Fountain Valley, California, United States Recruiting -
Long Beach Clinical Trials Services Inc
Long Beach, California, United States Recruiting -
Ark Clinical Research- Long Beach
Long Beach, California, United States Recruiting
Show 44 more locations
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Catalina Research Institute
Montclair, California, United States Recruiting -
Artemis Institute for Clinical Research
Riverside, California, United States Recruiting -
Artemis Institute for Clinical Research
San Diego, California, United States Recruiting -
Apex Clinical Research
San Diego, California, United States Recruiting -
Southern California Clinical Research
Santa Ana, California, United States Recruiting -
Diablo Clinical Research
Walnut Creek, California, United States Recruiting -
Chase Medical Research LLC
Waterbury, Connecticut, United States Recruiting -
Jacksonville Center for Clinical Research
Jacksonville, Florida, United States Recruiting -
Clinical Neuroscience Solutions - Jacksonville
Jacksonville, Florida, United States Recruiting -
South Florida Wellness and Clinical Research Institute
Lauderhill, Florida, United States Recruiting -
Optimus U Corporation
Miami, Florida, United States Recruiting -
Research Institute of South Florida
Miami, Florida, United States Recruiting -
Indago Research and Health Center
Miami Lakes, Florida, United States Recruiting -
Renstar Medical Research
Ocala, Florida, United States Recruiting -
Clinical Neuroscience Solutions - Orlando
Orlando, Florida, United States Recruiting -
Combined Research Orlando Phase I IV
Orlando, 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 -
Center for Advanced Research and Education
Gainesville, Georgia, United States Recruiting -
Rophe Adult and Pediatric Medicine/Sky Clinical Research Network Group
Union City, Georgia, United States Recruiting -
East-West Medical Research
Honolulu, Hawaii, United States Recruiting -
Solaris Clinical Research
Meridian, Idaho, United States Recruiting -
Flourish Research - Great Lakes Clinical Trials
Chicago, Illinois, United States Recruiting -
Endeavor Health
Skokie, Illinois, United States Recruiting -
Evanston Premier Healthcare Research LLC
Skokie, Illinois, United States Recruiting -
JCCT- Juno Northwest Houston
Lenexa, Kansas, United States Recruiting -
Alliance for Multispecialty Research Newton
Newton, Kansas, United States Recruiting -
Louisville Metabolic and Atherosclerosis Research Center
Louisville, Kentucky, United States Recruiting -
Velocity Clinical Research - Baton Rouge
Baton Rouge, Louisiana, United States Recruiting -
Tandem Clinical Research - Marrero
Marrero, Louisiana, United States Recruiting -
Headlands Research - Detroit
Southfield, Michigan, United States Recruiting -
Prime Health and Wellness Sky Clinical Research Network Group
Fayette, Mississippi, United States Recruiting -
Alliance for Multispecialty Research - Kansas City
Kansas City, Missouri, United States Recruiting -
Vector Clinical Trials
Las Vegas, Nevada, United States Recruiting -
Palm Research Center Inc
Las Vegas, Nevada, United States Recruiting -
Velocity Clinical Research- Binghamton
Binghamton, New York, United States Recruiting -
Rochester Clinical Research
Rochester, New York, United States Recruiting -
Accellacare of Hickory
Hickory, North Carolina, United States Recruiting -
Carolina Research Center Inc
Shelby, North Carolina, United States Recruiting -
Clinical Trial Investigator Clinical Research Center
Cincinnati, Ohio, United States Recruiting -
Velocity Clinical Research - Cincinnati
Cincinnati, Ohio, United States Recruiting -
Alliance for Multispecialty Research - Norman
Norman, Oklahoma, United States Recruiting -
Capital Area Research LLC
Newport, Pennsylvania, United States Recruiting -
Velocity Clinical Research - Providence
East Greenwich, Rhode Island, United States Recruiting
+42 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: Amgen Call Center
- Email: medinfo@amgen.com
- Phone: 866-572-6436
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Berobenatide for knee pain in adults who are overweight or with obesity
This study tests berobenatide vs. placebo to see if it reduces knee pain and improves function while helping with weight in adults with knee osteoarthritis and overweight/obesity.
-
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.
-
EloraTZP for weight loss in adults with overweight/obesity and type 2 diabetes
This trial tests whether a coformulation of eloralintide and tirzepatide helps people with obesity or overweight and type 2 diabetes lose weight compared with tirzepatide alone.
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Monthly dose of PF-08653944 vs placebo in Chinese adults who are overweight or obese
This study tests whether berobenatide (PF-08653944) given once a month helps adults in China lose weight compared with a placebo.
-
FutureShape Family: a family-based weight-management program with semaglutide for children and parents
This trial tests whether a family-centered program that combines a prescription medication (semaglutide) with lifestyle support and app-based coaching can help adults with obesity and their children who are overweight/obese.
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Home self-administration of a weight-management medicine with an autoinjector in adults who are overweight or obese
This study tests whether adults who are overweight or have obesity can successfully self-administer maridebart cafraglutide at home using an autoinjector.
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.