A study testing whether a new weekly shot from The University of Texas Health Science Center at San Antonio, tirzepatide, can help with weight.

Who can join
Adults 50+, have obesity, BMI 30+.
What you take
tirzepatide, 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 14 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 2Sponsor The University of Texas Health Science Center at San AntonioDrug tirzepatideClass GLP-1/GIPSites 1 USEnrollment target 20

What this study is for

Primary condition: Obesity Prevention. Also studied in: Sarcopenia in Elderly, Cardiovascular Function, GLP - 1, Weight Loss.

Full scientific study title: Effects of Tirzepatide on Muscle and Vascular Health in Obese Older Adults.

Who can join

Age50 and upSexAnyBMI30 to 40

Adults 50+, have obesity, BMI 30+. 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

  • Men and postmenopausal women aged 50 years or older.
  • Body Mass Index (BMI) >=30 kg/m².
  • Untreated HbA1c <6.5% at baseline.
  • Willingness and ability to comply with all study procedures, including fasting requirements for certain visits.
  • Able to provide informed consent and participate in all study assessments.

Key exclusion criteria

  • Active diagnosis of type 2 diabetes mellitus (T2DM), defined by active use of glucose-lowering medications or hemoglobin A1c >= 6.5%.
  • Body Mass Index (BMI) >= 40 kg/m².
  • Moderate to severe gastroesophageal reflux disease based on patient history.
  • Inability to comply with the treatment protocol or to understand the consent form.
  • Chronic Kidney Disease (CKD) Stage 4.

Where this study is enrolling

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

Texas1 site
  • University of Texas Health Science Center at San Antonio
    San Antonio, Texas

Timeline

Started enrolling: 2026-04-01. Expected completion: 2027-06-01. Last updated on ClinicalTrials.gov: 2026-04-15.

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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