Clinical trial Recruiting at 1 site Phase1; Phase2 Interventional Ages 18 to 60

Weight-loss surgery plus GLP-1 medication for severe obesity

Official title: The Efficacy and Safety of Bariatric Surgery Combined With GLP-1 Receptor Agonists for Patients With Severe Obesity: A Prospective, Multicenter Cohort Study

Run by China-Japan Friendship Hospital · NCT07336862 · Data updated 2026-11-12

This trial will test whether adding a GLP‑1 receptor agonist medicine to sleeve gastrectomy helps adults with BMI ≥35 and metabolic conditions keep off weight and improve metabolic health.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years to 60 Years
SexAll
Enrollment200 (estimated)
SponsorChina-Japan Friendship Hospital
Academic / other
Locations1 site (Beijing)
StatusRecruiting
StartedJanuary 1, 2024
Main results expectedDecember 2027
Study endsDecember 2027
Registry record updatedApril 23, 2026
Trial IDNCT07336862 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18–60 years old with BMI ≥35 kg/m² who are primary candidates for laparoscopic sleeve gastrectomy and have metabolic syndrome or type 2 diabetes and have not used GLP‑1 RAs in the prior 6 months.

Probably not a fit

Patients with advanced hepatic or renal failure, active malignancy, prior bariatric surgery, recent GLP‑1RA treatment, or those requiring reoperation for severe postoperative complications are unlikely to benefit from this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This phase 1/2 interventional trial compares laparoscopic sleeve gastrectomy alone to sleeve gastrectomy plus adjuvant GLP‑1 receptor agonist therapy in adults with severe obesity and metabolic comorbidities. Eligible participants are primary LSG candidates aged 18–60 with BMI ≥35 kg/m² and metabolic syndrome or type 2 diabetes, and they are assigned to either the BS‑GLP group or the BS group. Investigators will follow weight, glycemic and lipid markers, and safety outcomes over time to measure durability of weight loss and metabolic improvement. Key exclusions include prior bariatric surgery, recent GLP‑1RA use, advanced organ dysfunction, active malignancy, and autoimmune disease requiring immunosuppression to protect safety and reduce confounding.

Why it matters

Potential benefit: If successful, combining surgery with GLP‑1 therapy could produce greater and more durable weight loss and better metabolic control than surgery alone.

How similar studies have gone: Bariatric surgery and GLP‑1 receptor agonists have each shown substantial weight-loss and metabolic benefits on their own, but large randomized long-term trials testing their combined use are still limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Primary metabolic surgery candidates: Patients undergoing initial laparoscopic sleeve gastrectomy (LSG)
2. obesity:BMI ≥35 kg/m²
3. Metabolic comorbidities: Diagnosis of metabolic syndrome or type 2 diabetes mellitus (T2DM) meeting standard criteria
4. Age range: 18-60 years (inclusive)
5. Informed consent: Willing participation with documented consent

Exclusion Criteria:

1. Recent GLP-1RA use: Treatment with GLP-1 receptor agonists within 6 months preoperatively
2. Prior bariatric surgery: History of any metabolic/bariatric surgical procedure
3. Postoperative complications: Requiring reoperation for severe complications (e.g., hemorrhage, anastomotic leak)
4. Non-indicated candidates: Patients not meeting standard bariatric surgery indications
5. Significant comorbidities:

   * Advanced hepatic/renal dysfunction (Child-Pugh C or eGFR \<30 mL/min/1.73m²)
   * Active malignancy (except non-melanoma skin cancers)
   * Autoimmune disorders requiring immunosuppression
   * Uncontrolled psychiatric conditions (e.g., active psychosis, severe depression)

Where it's running

  • China-Japan Friendship Hospital
    Beijing, China
    Recruiting

Study contacts

  • Principal investigator: Hua Meng, Ph.D — China-Japan Friendship Hospital
  • Study coordinator: Yishan Huang, Ph.D
  • Email: bucmyishan@163.com
  • Phone: 18810621201

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.