About this trial
Researchers are trying to understand why people with indigestion and diabetes mellitus have gastrointestinal symptoms and in particular to understand whether symptoms are related to increased sensitivity to nutrients in the small intestine. As part of this investigation, a medication called ondansetron will also be studied to determine its effects on gastrointestinal function and associated symptoms.
Eligibility criteria
Qualifiers
Healthy male or non-pregnant, non-breastfeeding female volunteers;
18-75 years old;
Able to provide written informed consent before participating in the study
Able to communicate adequately with the investigator and to comply with the requirements for the entire study; including the willingness and ability to consume the components of the test meals
Disqualifiers
Major abdominal surgery (i.e., appendectomy, cholecystectomy, tubal ligation, hysterectomy, herniorrhaphy, and limited colonic resection are permissible)
Clinical evidence (including physical exam and EKG) of significant cardiovascular, respiratory, renal, hepatic, gastrointestinal, hematological, neurological, psychiatric or other disease that may interfere with the objectives of the study and/or pose safety concerns
Current use of opiates, alpha adrenergic agonists, metoclopramide, monoamine oxidase inhibitors, more than one serotonergic medication, and high doses of anticholinergic agents (eg, amitriptyline greater than 50 mg daily). If medically safe, these drugs may be discontinued for four half lives prior to study assessments.
Treatment with GLP-1 agonists and amlyin which cause vagal blockade and may affect central processing of pain
Trial design
Treatments tested in this trial
- Ondansetron 8mg
- Placebo
Treatment groups
6
Treatment groupsSee each treatment group below.
Sponsors and collaborators
Mayo Clinic
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Collaborator