Actively Recruiting
Preoperative Tirzepatide Treatment Compared to Standard Care for Patients Undergoing Bariatric Surgery
Led by Marlene Starr · Updated on 2026-05-14
50
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are evaluating whether taking tirzepatide before bariatric surgery can improve health outcomes for people with obesity and related medical conditions. This study aims to see if tirzepatide reduces inflammation in tissues and blood before surgery and how these changes relate to weight loss, metabolic improvements, and fewer complications after surgery. The trial is a Phase 4 interventional study comparing patients who take tirzepatide with those who do not before their planned surgery. Participants who are assigned to the tirzepatide group will self-inject 2.5 mg of tirzepatide once weekly for three months before surgery, following dose escalation instructions if needed. Both groups will receive education on dietary and lifestyle changes. During the three months before surgery, participants will visit the endocrine clinic monthly for drug prescription and side effect monitoring. The study continues through the surgery and post-surgery follow-up periods. Throughout the study, participants will keep a diary of drug use and side effects, and researchers will measure inflammatory markers such as C-reactive protein, interleukin 6, tumor necrosis factor, leptin, adiponectin, and RAAS at baseline, three months after drug use, and several times after surgery. Weight, blood pressure, blood sugar, cholesterol, and surgical complications will also be tracked up to one year after surgery. Participant involvement includes regular clinic visits, lab tests, and monitoring to assess the impact of tirzepatide on surgical outcomes and inflammation.
CONDITIONS
Brief Title
2024 Tirzepatide-Bariatric Surgery
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adults enrolled in a multidisciplinary metabolic and bariatric surgery program scheduled for laparoscopic or robotic sleeve gastrectomy or gastric bypass surgery
- Body mass index (BMI) of 40 kg/m2 or higher with one or more obesity-related health conditions
- Confirmed abstinence from any nicotine use by serum nicotine and metabolite testing
- Enrollment in the ADORE Bariatric Tissue Bank (IRB #69767)
You will not qualify if you...
- Any contraindication to tirzepatide use according to package instructions
- Personal or family history of medullary thyroid carcinoma
- Diagnosis of Multiple Endocrine Neoplasm syndrome type 2
- Hypersensitivity to tirzepatide
- History of pancreatitis
- Type 1 diabetes
- Active, untreated, or symptomatic gallstones or jaundice
- Use of GLP-1 or GLP-1/GIP receptor agonists in the past 90 days
- Diagnosed autoimmune disease
- Current or recent use (past 30 days) of immunosuppressive drugs
- Moderate or severe substance use disorder per DSM-5 criteria
- Uncontrolled significant psychiatric disorder evaluated by bariatric psychologist
- Female who is pregnant, breastfeeding, or plans pregnancy within 1 year after surgery
- Prisoner status
Research Team
M
Marlene Starr, PhD
V
Varun Jain, MD
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