A study testing whether a GLP-1 medicine from Terrestrial Bio, semaglutide, can help with weight.

Who can join
Adults 18 to 60, have obesity or are overweight, BMI 25+.
What you take
semaglutide, given as part of the study at no cost to you. Some participants may receive a placebo (an inactive version) instead, decided at random.
How long it lasts
The study runs about 11 months.
What you get
The study medication and study-related care at no cost. Compensation varies by study site; many cover travel and provide the study medication at no cost. The trial coordinator will explain what that site offers before you join.
Phase Phase 1Sponsor Terrestrial Bio, Inc.Drug semaglutideClass GLP-1 RASites 1 USEnrollment target 62

What this study is for

Primary condition: Overweight and/or Obesity.

Full scientific study title: Semaglutide Delivered Epi-Intradermally by Microarray Patch (VX-201) Versus Subcutaneous Administration in Healthy Overweight and Obese Part.

Who can join

Age18 to 60SexAnyBMI25 to 40

Adults 18 to 60, have obesity or are overweight, BMI 25+. 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

  • To be eligible for study participation, all subjects must meet all the following
  • Medically healthy with no clinically significant medical history, vital sign, or coagulation results at Screening; chemistry, hematology, or urinalysis at Screening and Day -1 (SAD)/Day 0 (MD) as deemed by the Investigator
  • Age 18 to 60 years, inclusive, at the time of Screening
  • Body mass index >=25 to <35 kg/m2 if participating in the SAD phase or >=27 to <40 kg/m2 if participating in the MD phase, at the time of Screening
  • Must be able to communicate well with the Investigator, understand and comply with the requirements of the study (including required confinement periods), and understand and provide written consent

Key exclusion criteria

  • Any disorder which in the investigator's opinion might jeopardize the subject's safety, evaluation of results, or compliance with the protocol
  • Any of the following obesity or glycemia-related history:
  • Treatment with a GLP-1 receptor agonist within 90 days before screening
  • Treatment with any medication for the indication of obesity within the past 90 days before screening
  • A self-reported change in body weight > 5 kg (11 lb) within 90 days before screening irrespective of medical records.

Where this study is enrolling

This trial has 1 sites across 1 state. Contact a site coordinator directly to start screening.

Arizona1 site

Timeline

Started enrolling: 2026-06-15. Expected completion: 2027-05-18. Last updated on ClinicalTrials.gov: 2026-06-29.

Official source

We sync this data quarterly from ClinicalTrials.gov, the federal registry for clinical research. Before contacting a site, verify the trial is still recruiting on the official page:

View on ClinicalTrials.gov →

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