Impact GLP-1 Agonists Following Bariatric

Part of paid clinical trials in Columbia, Missouri.

Sponsor
University of Missouri-Columbia
Study ID
NCT06132477
Phase
PHASE4
Status
Recruiting

Conditions

  • Diabetes Mellitus
  • Hypertension
  • Metabolic Syndrome
  • Morbid Obesity
  • Obstructive Sleep Apnea of Adult

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • GLP-1 receptor agonist — DRUG
    Randomized to continue or discontinue GLP-1 receptor agonists after bariatric surgery

Study Details

Glucagon-like peptide 1 (GLP-1) is a hormone that helps regulate blood glucose levels through improved insulin sensitivity and release of insulin from the pancreas, control hunger, induce satiety and plays a role in the metabolic health of a person. GLP-1 receptor agonists (GLP1-RAs) have been shown to be effective in achieving weight loss in patients with type 2 diabetes while improving blood glucose control. Bariatric surgical procedures have been shown to be effective in treating obesity as well as superior to best medical therapy for treatment of diabetes not just through restriction of calories but also through a positive impact in modifications of gut hormones, changes in circulating bile acids, modifications in the gut microflora as well as other undefined mechanisms. The combined benefits of GLP1-RAs with bariatric surgery have only been studied to a limited effect. In this randomized trial, the effects of continuation or discontinuation of GLP1-RA therapy in patients undergoing bariatric surgery will be determined. We will compare changes in weight, metabolic determinants including circulating bile acids and gut microbiome, psychological determinants of eating behavior, and adverse side effects in patients who continue vs discontinue therapy. Given differences in metabolic and clinical outcomes in patients undergoing vertical sleeve gastrectomy (VSG) and Roux-en-Y gastric bypass (RYGB), both surgical groups will be examined. The study will be conducted at a high volume bariatric surgical program where patients will undergo randomization at the time of final clinic visit prior to surgery to continue or discontinue GLP1-RA. It is hypothesized that participants who continue GLP1-RA therapy after bariatric surgery will lose more weight with improved blood glucose control than those who discontinue therapy. Furthermore, changes in gut microbiome and circulating bile acids, known determinants of metabolic health, will be modified to a differential extent in those who are on GLP1-RAs vs those where GLP1-RAs are discontinued. Understanding the role these medications play in not only clinical outcomes after metabolic surgery but potential metabolic mechanisms by which surgery improves patient's metabolic health could help people with obesity and type 2 diabetes make informed decisions about their treatment options as well as advise providers on the continuation of these medications in the perioperative and postoperative period.

Key Dates

Start date
Feb 1, 2024
Status verified
Jul 2025
Primary completion
Jul 31, 2028
Completion
Jul 31, 2030

Study Design

Enrollment
150 participants (estimated)
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT

Arms

  • Active Comparator: GLP-1 Agonist Group
    This cohort will consist of patients undergoing bariatric surgery who are currently receiving a GLP-1 Agonists for weight loss and/or diabetes management, that will be maintained on their preoperative dose of GLP-1 agonist following their bariatric surgery. This includes semaglutide, tirzepitide, among others. The dosage will be variable, but will be the same dose the patient is on prior to the bariatric surgery. Duration will be one of the aims of the study.
  • No Intervention: Non-GLP-1 Agonist Group
    This cohort will consist of patients undergoing bariatric surgery who are currently receiving a GLP-1 Agonist for weight loss and/or diabetes management that will be required to stop taking their preoperative dose of GLP-1 agonist following their bariatric surgery. Dosage preoperative will be variable based on what the patient is currently taking, as well as the medication being taken.

Primary Outcome Measure

Effect of GLP1-RA on weight loss [ Time Frame: 6 months ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
University of Missouri HospitalColumbiaMissouri65201
Andrew Wheeler, MD
573-882-5609
Milot Thaqi, MD
7086421788

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