Zenagamtide for weight loss in adults with overweight or obesity
Official title: Efficacy and Safety of Once-daily Oral Zenagamtide in Participants With Obesity (AMAZE 9)
Run by Novo Nordisk A/S · NCT07720271 · Data updated 2026-11-12
This study tests whether Zenagamtide tablets help adults with excess body weight lose weight compared with placebo.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 950 (estimated) |
| Sponsor | Novo Nordisk A/S Industry-sponsored |
| Locations | 41 sites (Anniston, Alabama and 40 other locations) |
| Status | Recruiting |
| Started | August 31, 2026 |
| Main results expected | June 27, 2028 |
| Study ends | August 22, 2028 |
| Registry record updated | September 28, 2026 |
| Trial ID | NCT07720271 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18 years or older with overweight or obesity who have not been treated with GLP-1-based therapies or certain diabetes conditions.
✕Probably not a fit
Individuals with diabetes or prior GLP-1, GIP, or amylin analogue treatments may be less likely to benefit and may not meet eligibility.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase 3, randomized, double-blind trial compares daily oral Zenagamtide to a placebo in adults with overweight or obesity. Participants are assigned by chance to receive either Zenagamtide or placebo for a set period, and safety and weight loss outcomes are collected. Key eligibility includes adults 18+ without diabetes and without prior GLP-1 or related treatments. The study is led by Novo Nordisk A/S with sites in Alabama, and recruitment prioritizes participants who meet the weight criteria and have no diabetes. Results will inform whether Zenagamtide can be a safe and effective option for weight management.
Why it matters
Potential benefit: If successful, participants may experience weight loss and improved health markers related to weight management.
How similar studies have gone: Other GLP-1–based weight loss studies have shown benefit, but this exact Zenagamtide approach is being tested in a Phase 3 trial.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Male or female (sex at birth). * Age 18 and older (both inclusive) at time of signing the informed consent. Exclusion Criteria: * Glycated haemoglobin (HbA1c) more than or equal to (≥) 6.5% \[48 millimoles per mole (mmol/mol)\] as measured by the central laboratory at screening. * History of type 1 or type 2 diabetes mellitus as declared by the participant or reported in the medical records. * Treatment with glucagon-like peptide-1 (GLP-1) receptor agonists (RA), dual GLP-1/gastric inhibitory peptide (GIP) RAs (or any other GLP-1 based treatment) or amylin analogues before screening.
Where it's running
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Pinnacle Research Group LLC
Anniston, Alabama, United States Recruiting -
Univ of Alabama Birmingham
Birmingham, Alabama, United States Recruiting -
Chambliss Clinical Trials LLC
Montgomery, Alabama, United States Recruiting -
Providence Medical Foundation
Fullerton, California, United States Recruiting -
Torrance Clinical Research Institute, Inc.
Lomita, California, United States Recruiting -
Diablo Clinical Research, Inc.
Walnut Creek, California, United States Recruiting
Show 35 more locations
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Univ of Colorado at Denver
Aurora, Colorado, United States Recruiting -
Brain Matters Research
Delray Beach, Florida, United States Recruiting -
Northeast Research Institute
Fleming Island, Florida, United States Recruiting -
Miguel Rebollar PA
Hialeah, Florida, United States Recruiting -
Jacksonville Ctr Clin Res
Jacksonville, Florida, United States Recruiting -
South Broward Research LLC
Miramar, Florida, United States Recruiting -
Clinical Neuroscience Solution
Orlando, Florida, United States Recruiting -
Florida Institute for Clinical Research, LLC
Orlando, Florida, United States Recruiting -
Oviedo Medical Research, LLC
Oviedo, Florida, United States Recruiting -
Hope Clin Res & Wellness
Conyers, Georgia, United States Recruiting -
East West Medical Research Institute_Honolulu
Honolulu, Hawaii, United States Recruiting -
Great Lakes Clinical Trials
Chicago, Illinois, United States Recruiting -
Clinical Investigation Spec Gurnee
Gurnee, Illinois, United States Recruiting -
Endeavor Health
Skokie, Illinois, United States Recruiting -
Evanston Premier Hlthcr Res
Skokie, Illinois, United States Recruiting -
Northern Pines Hlth Ctr, PC
Buckley, Michigan, United States Recruiting -
StudyMetrix Research LLC
City of Saint Peters, Missouri, United States Recruiting -
Palm Research Center Inc.
Las Vegas, Nevada, United States Recruiting -
Comprehensive Weight Ctrl Prog
New York, New York, United States Recruiting -
Medication Mgmnt, LLC_Grnsboro
Greensboro, North Carolina, United States Recruiting -
Accellacare of Raleigh
Raleigh, North Carolina, United States Recruiting -
Accellacare-Salisbury PMG Res
Salisbury, North Carolina, United States Recruiting -
Accellacare and KDCILM, LLC
Wilmington, North Carolina, United States Recruiting -
Lynn Institute of Norman
Norman, Oklahoma, United States Recruiting -
Clinical Res Collaborative
Cumberland, Rhode Island, United States Recruiting -
Medical Uni of SC Charleston
Charleston, South Carolina, United States Recruiting -
Coastal Carolina Research Ctr
North Charleston, South Carolina, United States Recruiting -
Hillcrest Clinical Research
Simpsonville, South Carolina, United States Recruiting -
Spartanburg Medical Research
Spartanburg, South Carolina, United States Recruiting -
Amarillo Medical Specialists
Amarillo, Texas, United States Recruiting -
North Texas Endocrine Center
Dallas, Texas, United States Recruiting -
Health Res of Hampton Roads
Newport News, Virginia, United States Recruiting -
National Clin Res Inc.
Richmond, Virginia, United States Recruiting -
Midwest Inst For Clin Res
Indianapolis, Indiana, United States Not yet recruiting -
Washington Cntr Weight Mgmt
Arlington, Virginia, United States Not yet recruiting
Study contacts
- Study coordinator: Novo Nordisk
- Email: clinicaltrials@novonordisk.com
- Phone: (+1) 866-867-7178
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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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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.