A study testing whether a GLP-1 medicine from Novo Nordisk, semaglutide, can help people lose weight.
- Who can join
- Adults 18+, are overweight.
- What you take
- semaglutide, given as part of the study. Check ClinicalTrials.gov for this trial's study groups, including any placebo or comparison medicine.
- How long it lasts
- The full study runs about 2.1 years; your own time in it is usually shorter.
- What you get
- Many clinical trials pay for the study medication and the study visits. Some also pay for travel. Ask the study team what this one covers before you sign the consent form.
What this study is for
Primary condition: Overweight. Also studied in: Obesity.
Full scientific study title: A Research Study Investigating How Well the Medicine Zenagamtide Helps People With Excess Body Weight Lose Weight Compared to Semaglutide.
Who can join
Adults 18+, are overweight. A site coordinator confirms whether you qualify during a free screening visit. The exact medical requirements are below.
Full medical eligibility (for you and your doctor)verbatim from the registry
This is the exact wording from ClinicalTrials.gov, including clinical measures (lab values, imaging scores). Bring it to your doctor if any of it is unclear.
Key inclusion criteria
- Male or female (sex at birth).
- Age 18 years or above at the time of signing the informed consent.
Key exclusion criteria
- Glycated haemoglobin (HbA1c) ≥ 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 within 1 year before screening.
Where this trial runs
This trial has 46 sites across 16 states. Site contacts are listed for reference. They are not screening through this trial right now.
California4 sites
- First Valley Medical GroupLancaster, California
- Desert Oasis HealthcarePalm Springs, California
- Western University of Health SciencesPomona, California
- Artemis Insitute for Clin ResSan Diego, California
District of Columbia1 site
- Med Home Development GrpWashington D.C., District of Columbia
Florida10 sites
- Encore Medical Research LLCHollywood, Florida
- NextPhase ResearchHollywood, Florida
- Jacksonville Ctr Clin ResJacksonville, Florida
- PharmaDev Clinical Research Institute LLCMiami, Florida
- South Broward Research LLCMiramar, Florida
- Essence MD ResearchNaples, Florida
- Florida Inst For Clin Res LLCOrlando, Florida
- Oviedo Medical Research, LLCOviedo, Florida
- Palm Beach Research CenterWest Palm Beach, Florida
- Encore Medical Research of WestonWeston, Florida
Georgia2 sites
- Conquest ResearchAtlanta, Georgia
- Eastside Bariatric and Gen SurgSnellville, Georgia
Illinois2 sites
- Chicago Research Center, IncChicago, Illinois
- Endeavor HealthSkokie, Illinois
Indiana1 site
- Midwest Inst For Clin ResIndianapolis, Indiana
Louisiana1 site
- Southern Clin ResearchZachary, Louisiana
Missouri1 site
- Amicis Centers of Clinical ResearchSt Louis, Missouri
New York2 sites
- Ichor ResearchSyracuse, New York
- Southgate Medical Group, LLPWest Seneca, New York
North Carolina3 sites
- University of North CarolinaChapel Hill, North Carolina
- PharmQuest Life Sciences LLCGreensboro, North Carolina
- Piedmont Healthcare/ResearchStatesville, North Carolina
North Dakota1 site
- Lillestol Research LLCFargo, North Dakota
Pennsylvania1 site
- Geisinger ClinicDanville, Pennsylvania
South Carolina3 sites
- Medical University Of South CarolinaCharleston, South Carolina
- Hillcrest Clinical ResearchSimpsonville, South Carolina
- Spartanburg Medical ResearchSpartanburg, South Carolina
Texas10 sites
- Amarillo Med Spec LLPAmarillo, Texas
- Texas Diabetes & EndocrinologyAustin, Texas
- Pinnacle Clinical ResearchBrownsville, Texas
- Osvaldo A. Brusco MDCorpus Christi, Texas
- UT Southwestern Med CenterDallas, Texas
- Epic Medical ResearchDeSoto, Texas
- Houston Research InstituteHouston, Texas
- The Endocrine CenterHouston, Texas
- Sleep Therapy Research CenterSan Antonio, Texas
- Olympus Clinical ResearchSugar Land, Texas
Virginia2 sites
- National Clin Res Inc.Richmond, Virginia
- Gastroent Consult of SW VARoanoke, Virginia
Washington2 sites
- Rainier Clin Res Ctr IncRenton, Washington
- Seattle Clinical Research CenterSeattle, Washington
Timeline
Scheduled start: September 22, 2026. Expected completion: October 10, 2028. Last updated on ClinicalTrials.gov: June 25, 2026.
Official source
Every Monday we check this trial against ClinicalTrials.gov, the federal registry for clinical research. Last checked August 21, 2026. Confirm the current status there before you contact a site:
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