Surgery plus drug: a new combo for obesity?
NCT ID NCT06734273
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This early study looks at whether taking tirzepatide (Mounjaro) after sleeve gastrectomy surgery helps people lose more weight and improve conditions like diabetes and high blood pressure. About 42 adults with obesity will be split into two groups: one gets surgery alone, the other gets surgery plus the drug. The goal is to see if the combination is more effective and safe.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- tirzepatide (Mounjaro)
- What this could lead to
- If it works, this could point toward a more effective weight-loss strategy combining surgery and medication for people with obesity.
- What could go wrong
- This is a very early, small trial with only 42 people, so results may not apply widely. Adding tirzepatide after surgery could also increase side effects or complications.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Early phase 1
The earliest testing in people: a first look at safety, in a very small group.
- Participants
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About 42 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2025
- Expected to finish
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Sep 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adult 18 to 65 years of age * Body Mass Index \>35 with comorbidity of Type 2 Diabetes and/or Hypertension and/or Hyperlipidemia and/or Obstructive Sleep Apnea OR Body Mass Index \>40 with or without comorbidity * Undergoing primary sleeve gastrectomy Exclusion Criteria: * Prior metabolic and bariatric surgery * Prior use of GLP-1 agonist * Prior history of pancreatitis * Personal/family history of medullary thyroid cancer or MEN type 2 * Secondary cause of obesity * Any eating disorder * Pregnancy/lactation * History of acute coronary syndrome or myocardial infarction * History of stroke * Hepatic dysfunction: AST/ALT \>3 ULN * Renal dysfunction eGFR\<45ml/min/1.73m2 * Active malignancy * History of diabetic retinopathy * History of gastroparesis
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Rush University Medical Center
RECRUITINGChicago, Illinois, 60612, United States
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