Scientists probe Gut's role in obesity: new study reveals how foregut may misfire
NCT ID NCT02537314
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at how the upper part of the gut (foregut) senses nutrients and controls metabolism in 27 lean and obese adults. Researchers measured hormone and sugar levels after feeding through a tube to understand if faulty gut signals contribute to obesity. The goal was to gather knowledge, not to test a treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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27 people
The number who actually took part.
- Start date
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Sep 2015
- Finished
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Dec 2022
- 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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20 to 50 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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: * BMI 19 - 25 kg/m2 or 30 - 50 kg/m2 * Age 20 - 50 years Exclusion Criteria: * Contraindication to a nasoduodenal feeding tube (e.g., deviated nasal septum, prior upper gastrointestinal bleed, or history of easy bleeding) * Prior gastric or intestinal surgery or pancreas resection * Females with a positive pregnancy test * Known history of intestinal diseases including, but not limited to, inflammatory bowel disease (e.g. ulcerative colitis, Crohn's disease), celiac sprue * Type 1 or type 2 diabetes * Recent presence of or treatment for gastroenteritis (diarrhea and/or vomiting), constipation, or upper respiratory infection * Anemia * Abnormal electrocardiogram * Prior adverse reaction to anesthesia * Tobacco use
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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.
Contacts and locations
Locations
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Vanderbilt University Medical Center
Nashville, Tennessee, 37232, United States
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