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ClinicalTrials.gov public records Last synced Jun 9, 2026, 11:36 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Intestinal Permeability Clear all
Completed Early Phase 1 Interventional Accepts healthy volunteers

Oral Administration of MB-102 Versus Dual Sugar Testing for Gut Permeability

NCT03962998
View directory record Official record
Conditions
Crohn Disease
Interventions
Lactulose/Rhamnose solution, MB-102
Drug
Lead sponsor
MediBeacon
Industry
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 9, 2022 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Phase 2 Interventional Results available

Glutamine for the Treatment of Patients With Irritable Bowel Syndrome

NCT01414244
View directory record Official record
Conditions
Diarrhea-Predominant Irritable Bowel Syndrome
Interventions
Glutamine
Drug
Lead sponsor
Tulane University
Other
Eligibility
18 Years to 72 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 8, 2017 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Blueberry Consumption on Gastrointestinal Health

NCT03934177
View directory record Official record
Conditions
Obesity, Circadian Dysregulation
Interventions
Blueberry powder, Placebo powder
Dietary Supplement
Lead sponsor
University of Nebraska Lincoln
Other
Eligibility
19 Years to 70 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
2
States / cities
Lincoln, Nebraska • Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Mar 21, 2023 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Changes in Intestinal Permeability 4 Hours After Gluten Challenge

NCT03288831
View directory record Official record
Conditions
Celiac Disease, Wheat Hypersensitivity, Gluten Sensitivity, Gluten Enteropathy, Immune System and Related Disorders, Duodenal Diseases
Interventions
Gluten, Placebo
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 6, 2019 · Synced Jun 9, 2026, 11:36 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Western Diet on Cardiometabolic and Immune Function

NCT06528977
View directory record Official record
Conditions
Aging, Diet, Healthy
Interventions
Western Diet
Other
Lead sponsor
University of Delaware
Other
Eligibility
50 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced Jun 9, 2026, 11:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Gut Permeability Assessment in Celiac and Gluten Sensitive Children

NCT02690532
View directory record Official record
Conditions
Celiac Disease
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
2 Years to 17 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 14, 2018 · Synced Jun 9, 2026, 11:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Standardizing Method and Development of Normal Values to Measure Human Small Intestinal and Colonic Permeability

NCT04262310
View directory record Official record
Conditions
Healthy
Interventions
Small Bowel and Colonic Permeability Test
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 29, 2021 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of a Cranberry Beverage on Intestinal Permeability and Gastrointestinal Function in Generally Healthy Adults

NCT03957239
View directory record Official record
Conditions
Intestinal Permeability, Gastrointestinal Function
Interventions
Cranberry Beverage, Control Beverage
Other
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 50 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 6, 2020 · Synced Jun 9, 2026, 11:36 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Exercise-Induced Gut Permeability in Normal-weight Obesity

NCT05889767
View directory record Official record
Conditions
Normal-weight Obesity, Obesity
Interventions
Exercise tests (VO2 max test and 45-minute exercise session at 65% VO2 max)
Other
Lead sponsor
Oklahoma State University
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Stillwater, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jun 4, 2023 · Synced Jun 9, 2026, 11:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Biomarkers for Intestinal Permeability in Patients With Constipation

NCT02246647
View directory record Official record
Conditions
Intestinal Diseases, Irritable Bowel Syndrome, Constipation
Interventions
Permeability measurement, Esophagogastroduodenoscopy, Flexible sigmoidoscopy
Diagnostic Test · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 20, 2019 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Phase 4 Interventional Results available

Short Bowel Syndrome and Teduglutide Versus Placebo

NCT02099084
View directory record Official record
Conditions
Short Bowel Syndrome
Interventions
Teduglutide, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 75 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 21, 2016 · Synced Jun 9, 2026, 11:36 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Tributyrin: Time Course & Efficacy to Improve Health & Performance

NCT06501898
View directory record Official record
Conditions
Metabolite Concentration, Gut Permeability, Inflammation, Sleep, Performance
Interventions
CoreBiome, Placebo
Dietary Supplement
Lead sponsor
Florida State University
Other
Eligibility
30 Years to 50 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Apr 12, 2025 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Phase 3 Interventional

Effect of VSL#3 on Intestinal Permeability in Pediatric Crohn's Disease

NCT00944736
View directory record Official record
Conditions
Crohn's Disease
Interventions
VSL#3, Placebo
Dietary Supplement
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
11 Years to 17 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 9, 2014 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Flavonoids, Exercise, Gut-Derived Phenolics

NCT03249571
View directory record Official record
Conditions
Exercise and Gut-derived Phenolics
Interventions
Flavonoid supplement, Placebo
Dietary Supplement
Lead sponsor
Appalachian State University
Other
Eligibility
18 Years to 50 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 10, 2017 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

A Study of Perturbation of Human Small Intestinal Colonic Permeability

NCT06033222
View directory record Official record
Conditions
Healthy
Interventions
Ricinoleic Acid 750 mg, Ricinoleic Acid 1500 mg, Ricinoleic Acid 3000 mg, Placebo
Dietary Supplement · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Jun 9, 2026, 11:36 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Feasibility Study to Assess a Trans-nasal Intestinal Potential Difference Probe

NCT04565821
View directory record Official record
Conditions
Inflammatory Disease, Permeability; Increased, Crohn Disease, Inflammatory Bowel Diseases, Environmental Enteropathy
Interventions
IPD Probe via TNIT
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 60 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 21, 2025 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Phase 2 Interventional Results available

Lubiprostone as a Modulator of Gut Microbial Translocation in HIV With Incomplete CD4 Recovery on Antiretroviral Therapy

NCT01839734
View directory record Official record
Conditions
HIV
Interventions
Lubiprostone
Drug
Lead sponsor
Ruth M. Rothstein CORE Center
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 29, 2023 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

MRE Consumption and Gut Health

NCT02423551
View directory record Official record
Conditions
Gastrointestinal Tract
Interventions
MRE
Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 62 Years
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 15, 2019 · Synced Jun 9, 2026, 11:36 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Microbiome in Colorectal Cancer Onset and Progression

NCT05368688
View directory record Official record
Conditions
Colorectal Cancer, Tumor, CRC, GI Cancer, Gastrointestinal Cancer
Interventions
Not listed
Lead sponsor
Viome
Industry
Eligibility
50 Years to 80 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Bellevue, Washington
Source: ClinicalTrials.gov public record
Updated Dec 26, 2022 · Synced Jun 9, 2026, 11:36 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Induction of Gut Permeability by an Oral Vaccine

NCT04083950
View directory record Official record
Conditions
Intestinal Permeability, Inflammation, Vaccine, Typhoid Fever
Interventions
Vivotif Typhoid Oral Vaccine, Aspirin (Positive Control)
Biological · Drug
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 49 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Nov 23, 2025 · Synced Jun 9, 2026, 11:36 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Dietary Supplementation on Gastrointestinal Barrier Function

NCT06262880
View directory record Official record
Conditions
Intestinal Permeability
Interventions
plant derived phenolics, Microcrystaline cellulose (MCC)
Dietary Supplement · Other
Lead sponsor
Brightseed
Industry
Eligibility
30 Years to 69 Years
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 7, 2024 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

GI Permeability Change in Response to Aquamin®

NCT04855799
View directory record Official record
Conditions
Ulcerative Colitis, Healthy, Irritable Bowel Syndrome With Diarrhea
Interventions
Aquamin
Drug
Lead sponsor
James Varani
Other
Eligibility
18 Years to 80 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 7, 2026 · Synced Jun 9, 2026, 11:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of JuicePlus+ on the Health Status of an Overweight Stressed Population

NCT02512107
View directory record Official record
Conditions
Inflammation
Interventions
Juice Plus+, Placebo
Dietary Supplement · Other
Lead sponsor
University of Memphis
Other
Eligibility
25 Years to 50 Years · Female only
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated May 16, 2022 · Synced Jun 9, 2026, 11:36 PM EDT
Active, not recruiting Not applicable Interventional Results available

Assessing Gut Microbiota Mediated Health Outcomes of Whole Wheat and Its Major Bioactive Components

NCT05318183
View directory record Official record
Conditions
PreDiabetes, Dysbiosis, Endotoxemia, Inflammation
Interventions
Whole Wheat Bread, White Bread (control)
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 65 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Jun 9, 2026, 11:36 PM EDT