CompletedPhase 1

Role of the Foregut in Nutrient Metabolism in Lean and Obese Humans

United States27 participantsStarted 2015-09

Plain-language summary

The overall hypothesis of this proposal is that nutrient sensing in the foregut regulates metabolic hormone secretion and nutrient metabolism via enteric neural signals, and these mechanisms might be defective in obesity.

Who can participate

Age range

20 Years – 50 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

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

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Gastrointestinal Hormones

Timeframe: 5 Hours

Pancreatic Hormones

Timeframe: 5 Hours

Glucose and Free Fatty Acids

Timeframe: 5 Hours

Trial details

NCT IDNCT02537314

SponsorVanderbilt University Medical Center

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2022-12-08

View on ClinicalTrials.gov More Obesity trials

Who can participate

Age range

20 Years – 50 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.