Clinical trial Recruiting at 1 site Interventional Ages 18 to 60

Hormonal changes after two bariatric surgeries in super-obese people

Official title: Comparison of Hormonal Response to a Mixed-Meal Tolerance Test After Laparoscopic Roux-en-Y Gastric Bypass Versus Laparoscopic Sleeve Gastrectomy With Duodenojejunal Bypass in Patients With Super Morbid Obesity: A Prospective Single-Center Non-Inferiority Randomized Clinical Trial

Run by Chulalongkorn University · NCT07747779 · Data updated 2026-11-12

This study tests whether sleeve gastrectomy with duodenojejunal bypass leads to different hormone responses and less post-meal hypoglycemia than Roux-en-Y gastric bypass in people with extreme obesity.

Quick facts

Study typeInterventional
Ages18 Years to 60 Years
SexAll
Enrollment32 (estimated)
SponsorChulalongkorn University
Academic / other
Locations1 site (Pathum Wan, Bangkok)
StatusRecruiting
StartedAugust 8, 2024
Main results expectedJuly 31, 2027
Study endsJuly 31, 2027
Registry record updatedAugust 6, 2026
Trial IDNCT07747779 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults with BMI 50–60 kg/m2 seeking bariatric surgery, motivated to lose weight, and without diabetes or other major contraindications.

Probably not a fit

Patients with diabetes, significant comorbidities, prior bariatric surgery, or active reflux that disqualifies surgery may not benefit from this approach.

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

What this trial studies

The trial compares two surgical approaches for super morbid obesity to see how they affect gut hormone responses after a mixed meal. It will measure hormones such as GLP-1, GIP, glucagon, and insulin to understand underlying mechanisms of weight loss and glycemic changes. Participants are adults with BMI between 50 and 60 kg/m2 who qualify for bariatric surgery and do not have diabetes or other prohibitive conditions. The study is conducted at King Chulalongkorn Memorial Hospital in Bangkok under lead sponsor Chulalongkorn University. It is an interventional, procedure-based comparison without a specified randomized phase.

Why it matters

Potential benefit: If LSG-DJB shows a favorable hormonal profile and lower post-meal hypoglycemia, patients may experience better metabolic outcomes and fewer glucose-related problems after surgery.

How similar studies have gone: Previous data suggest LSG-DJB can achieve weight loss and glycemic control similar to LRYGB, but hormonal impacts are not well established.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with an indication for bariatric surgery
* BMI 50-60 kg/m2
* Patients who are motivated to lose weight but have not achieved successful weight reduction despite optimal medical therapy and exercise under physician supervision

Exclusion Criteria:

* Patients with diabetes mellitus
* Patients with severe comorbid conditions that contraindicate surgery, such as advanced heart disease or chronic kidney failure
* Patients with a history of previous bariatric surgery
* Patients with gastroesophageal reflux disease refractory to medical therapy, large hiatal hernia, or endoscopic findings of reflux esophagitis grade C or D, or Barrett esophagus
* Patients with psychiatric disorders that impair eating behavior control
* Patients with a history of pancreatitis, pancreatic disease, or inflammatory bowel disease
* Patients who have used steroids or GLP-1 receptor agonists within the past 2 months

Where it's running

  • King Chulalongkorn Memorial Hospital
    Pathum Wan, Bangkok, Thailand
    Recruiting

Study contacts

Similar studies

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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.