Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Jul 21, 2026, 8:43 PM EDT

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Showing 1–24 of 192 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Celiac Disease
Interventions
Rifaximin, Placebo
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
New York, New York
Conditions
Health, Wellness, Quality of Life
Interventions
A ready-to-mix beverage containing protein, fiber, and electrolytes
Dietary Supplement
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
21 Years to 75 Years
Enrollment
133 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Del Mar, California
Conditions
Cancer
Interventions
ePRO
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Pancreatic Ductal Adenocarcinoma (PDAC), Pancreatic Neuroendocrine Tumor (NET)
Interventions
Structured Lipid Medical Food
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Conditions
Gastroesophageal Reflux Disease
Interventions
Questionnaires to evaluate QOL, Questionnaires to evaluate heartburn and quality of life, Questionnaire to evaluate satisfaction with treatment, Questionnaire to evaluate presence or absence of pain
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
2,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2050
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Enrolling by invitation No phase listed Observational

Enabling Microbiomics- Driven Personalized Nutrition

NCT06657001
Conditions
Inflammatory Bowel Disease (IBD), Irritable Bowel Syndrome (IBS), Celiac Disease, Diarrhea, Constipation, Microbiome, Crohn's Disease, UC - Ulcerative Colitis, Microscopic Colitis, Functional Dyspepsia
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
4,001 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Abdominal Pain, Deglutition Disorders, Fecal Incontinence, Nausea, Diarrhea, Constipation, Gastroesophageal Reflux
Interventions
AEGIS (Automated Evaluation of Gastrointestinal Symptoms)
Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
610 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Gastrointestinal Diseases, Stomach Diseases, Gastroparesis
Interventions
Not listed
Lead sponsor
The SmartPill Corporation
Industry
Eligibility
18 Years to 65 Years
Enrollment
148 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
7
States / cities
Kansas City, Kansas • Louisville, Kentucky • Boston, Massachusetts + 4 more
Conditions
Ventral Hernia
Interventions
Alvimopan, Placebo
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Not yet recruiting Phase 1Phase 2 Interventional

Snacks and Brain Health

NCT07348406
Conditions
Cognitive Assessment, Psychological Function, GI Health
Interventions
Pecan snack, Pretzel snack
Biological
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
50 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Lubbock, Texas
Conditions
Gastro Intestinal Bleeding, Hematemesis, Melena
Interventions
Video Capsule Endoscopy
Device
Lead sponsor
Christopher Marshall
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Worcester, Massachusetts
Conditions
Gastrointestinal Symptoms, Weight Loss, GLP-1
Interventions
High Fiber Bar with Inulin, High Fiber bar with Fiber Blend, High Fiber Bar with Resistant Starch type 4, Low Fiber Bar
Other
Lead sponsor
Midwest Center for Metabolic and Cardiovascular Research
Other
Eligibility
25 Years to 64 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
2
States / cities
Miami Gardens, Florida • Port Saint Lucie, Florida
Completed Not applicable Interventional Accepts healthy volunteers

Iron Supplementation and Side Effects

NCT04018300
Conditions
Iron Deficiency Anemia, Iron Overload
Interventions
Ferrous sulfate, Aspiron, Placebo
Dietary Supplement · Other
Lead sponsor
Iowa State University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Ames, Iowa
Conditions
NSAIDs, Upper GI Symptoms
Interventions
Esomeprazole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
556 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2002
U.S. locations
32
States / cities
Tallassee, Alabama • Phoenix, Arizona • Garden Grove, California + 29 more
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Mouthrinse on the Microbiome of the Oral Cavity and GI Tract

NCT05603650
Conditions
Oral Bacterial Infection, Oral Infection, Microbial Colonization, Viral Infection
Interventions
Lumineux Oral Essentials rinse, Listerine rinse
Other
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Irvine, California
Terminated Phase 4 Interventional Results available

Ketamine-assisted Therapy for Advanced GI Cancer

NCT06077487
Conditions
Pancreatic Ductal Adenocarcinoma, Pain, Acute, Gastrointestinal Cancers, Demoralization
Interventions
Ketamine, Ketamine Injectable Product, Meaning and Purpose therapy, Placebo, Questionnaires
Drug · Behavioral · Other
Lead sponsor
Brian Anderson, MD
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
San Francisco, California
Conditions
GI Bleeding, Perforation Colon, Perforation Bowel, Perforation Duodenal, Perforated Bowel, Fistula
Interventions
DAT Clip
Device
Lead sponsor
AdventHealth
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
2
States / cities
Orlando, Florida • Fort Wayne, Indiana
Conditions
Metastatic Cancer
Interventions
Genetically Informed Therapy
Genetic
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Lebanon, New Hampshire
Conditions
Diarrhea
Interventions
Enterade beverage
Dietary Supplement
Lead sponsor
GenesisCare USA
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Jacksonville, Florida
Conditions
Gastrointestinal Symptoms, Digestive Health, Gut Health
Interventions
PhytoPower 1 and PhytoPower 2
Dietary Supplement
Lead sponsor
SF Research Institute, Inc.
Network
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Completed Not applicable Interventional Accepts healthy volunteers

An Exploratory Investigation of a Supplement to Promote Gut Health

NCT05831527
Conditions
Gastrointestinal Symptoms, Exercise Performance
Interventions
ARMRA™ Bovine Colostrum
Drug
Lead sponsor
Armra
Industry
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Diarrhea, Radiation Enteritis
Interventions
pentosan polysulfate sodium, quality-of-life assessment
Drug · Procedure
Lead sponsor
Radiation Therapy Oncology Group
Network
Eligibility
0 Years to 120 Years
Enrollment
174 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
241
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 183 more
Not yet recruiting No phase listed Observational Accepts healthy volunteers

Correlation of Toxins With Gastrointestinal (GI) and Overall Health

NCT06278311
Conditions
Gastrointestinal Diseases
Interventions
Not listed
Lead sponsor
Vibrant America Clinical Lab
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
Los Angeles, California • Santa Clara, California
Conditions
LVAD, Frailty, GI Bleed, Right Heart Failure, Infections, Hypertension, Arrhythmias, Stroke
Interventions
HeartMate 3 (R) left ventricular assist device
Device
Lead sponsor
International Consortium of Circulatory Assist Clinicians
Other
Eligibility
18 Years to 100 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
7
States / cities
San Francisco, California • Gainesville, Florida • Chicago, Illinois + 4 more