Clinical trial

Semaglutide and Tirzepatide for Genetic Aging Delay in Adults With Obesity

Recruiting now · Not applicable · 1 countries · Registry ID NCT07293325

Recruiting nowNot applicableInterventional

What this study is about

This study is a prospective, randomized, open-label clinical trial enrolling 66 adults with simple obesity who have not used weight-loss medications for at least 3 months. Participants will receive semaglutide, tirzepatide, or metformin for 24 weeks. Changes in "biological (epigenetic) age" will be assessed using the iWatchAge DNA methylation age test, while simultaneously monitoring improvements in aging-related biomarkers such as inflammatory factors, metabolic parameters, and body composition. The aim is to determine whether incretin-based therapies can reverse or slow obesity-related accelerated epigenetic aging and to provide new clinical evidence for interventions targeting obesity and aging.

A promising-looking record is not the same as confirmed eligibility. The study team must review the full criteria and current recruitment status.

Basic eligibility

Age18 Years to 75 Years
SexAll
Healthy volunteersNot accepted
ConditionAdults With Simple Obesity

Full registry criteria

Inclusion Criteria: 1. Adults aged 18 to 75 years. 2. Diagnosed with simple obesity, defined as BMI ≥ 30 kg/m². 3. Have not used any anti-obesity medications (including GLP-1 RAs, tirzepatide, metformin for weight loss, etc.) within the past 3 months. 4. Able and willing to comply with study procedures and complete follow-up assessments. 5. Provide written informed consent. Exclusion Criteria: 1. Presence of secondary obesity (e.g., endocrine disorders such as Cushing's syndrome or hypothyroidism). 2. Use of anti-obesity medications or participation in another weight-loss program within the past 3 months. 3. Diagnosed type 1 or type 2 diabetes mellitus requiring hypoglycemic drug therapy. 4. History of pancreatitis, severe gastrointestinal disease, or bariatric surgery. 5. Severe cardiovascular, hepatic, renal, or psychiatric disease that may affect participation. 6. Pregnant or breastfeeding women, or women planning pregnancy during the study period. 7. Current participation in any other clinical trial. 8. Any condition that, in the investigator's judgment, makes the participant unsuitable for the study.

Treatments and study arms

Semaglutide

Drug

Semaglutide administered once weekly by subcutaneous injection.Dose titrated from 0.25 mg to 2.0 mg as tolerated over 24 weeks

Tirzepatide

Drug

Tirzepatide administered once weekly by subcutaneous injection. Dose titrated from 2.5 mg to 10 mg as tolerated over 24 weeks

Metformin

Drug

Metformin administered orally. Dose titrated from 500 mg to 1500-2000 mg daily, based on tolerance, for 24 weeks

Primary outcomes

Change in DNA methylation-based biological age measured by iWatchAgeBaseline and Week 24

Change in epigenetic biological age from baseline to Week 24, measured using the iWatchAge DNA methylation assay. This outcome reflects whether semaglutide, tirzepatide, or metformin can delay or reverse obesity-associated accelerated epigenetic aging.

Study locations

1 locations were listed when this page was built. The first 40 are shown.

The Second Affiliated Hospital, Zhejiang University School of Medicine🇨🇳 Hangzhou, China
Chao ZhengContact