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Showing 1–24 of 71 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Gut Permeability Clear all
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Probiotic Intake on Intestinal Permeability in Healthy Adults

NCT03611400
View directory record Official record
Conditions
Intestinal Barrier Function
Interventions
Probiotic, Placebo
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 50 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 20, 2019 · Synced Sep 10, 2026, 8:09 AM 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 Sep 10, 2026, 8:09 AM 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 Sep 10, 2026, 8:09 AM 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 Sep 10, 2026, 8:09 AM 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 Jul 16, 2026 · Synced Sep 10, 2026, 8:09 AM EDT
Completed Phase 1 Interventional

Intestinal Permeability in Response to Treatment in Eosinophilic Esophagitis Patients

NCT01641913
View directory record Official record
Conditions
Eosinophilic Esophagitis
Interventions
Absorbable sugars
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 23, 2014 · Synced Sep 10, 2026, 8:09 AM EDT
Completed Not applicable Interventional

Gluten Intolerance in Patients With Diarrhea Predominant Irritable Bowel Syndrome

NCT01094041
View directory record Official record
Conditions
Diarrhea, Diarrhea Predominant Irritable Bowel Syndrome
Interventions
Gluten free diet, Gluten rich diet
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 9, 2013 · Synced Sep 10, 2026, 8:09 AM EDT
Completed Early Phase 1 Interventional

Effects of a Western-type Diet on Colorectal Inflammation

NCT00866450
View directory record Official record
Conditions
Colorectal Inflammation
Interventions
Western style diet (high fat and low in calcium), Prudent-style diet (low fat and high in calcium)
Dietary Supplement
Lead sponsor
Rockefeller University
Other
Eligibility
50 Years to 72 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 10, 2012 · Synced Sep 10, 2026, 8:09 AM EDT
Not yet recruiting Not applicable Interventional

Impact of a Human Origin Heat Inactivated Probiotic-Lactobacillus Paracasei D3.5 (LpD3.5) as Dietary Supplement on Gut Mucin and Intestinal Permeability in Adults With IBD

NCT07017959
View directory record Official record
Conditions
Inflammatory Bowel Diseases
Interventions
LpD3.5 supplementation., Placebo
Dietary Supplement
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jun 11, 2025 · Synced Sep 10, 2026, 8:09 AM 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 Sep 10, 2026, 8:09 AM 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 Sep 10, 2026, 8:09 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Alcohol, Gut Leakiness, & Liver Disease

NCT05428072
View directory record Official record
Conditions
Alcoholic Liver Disease
Interventions
Sugar test, Aspirin Challenge
Other · Drug
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
195 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 21, 2022 · Synced Sep 10, 2026, 8:09 AM EDT
Not yet recruiting Not applicable Interventional

The Effects of Mango on Gut Health Markers

NCT07559604
View directory record Official record
Conditions
Gut Health, LBP, Short Chain Fatty Acids, sCD14
Interventions
Mango
Behavioral
Lead sponsor
Loma Linda University
Other
Eligibility
40 Years to 60 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 10, 2026, 8:09 AM 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 Sep 10, 2026, 8:09 AM EDT
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 Sep 10, 2026, 8:09 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

WHNRC (Western Human Nutrition Research Center) Fiber Intervention Study

NCT04543877
View directory record Official record
Conditions
Inflammation, Vaccine, Intestinal Permeability, Typhoid Fever
Interventions
Inulin, Maltodextrin, Ty21a Typhoid Fever Vaccine
Dietary Supplement · Biological
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 59 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 10, 2026, 8:09 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Postprandial Effects of Fresh Mango as a Table Sugar Replacement in High-Sugar Breakfasts.

NCT07650058
View directory record Official record
Conditions
Healthy Participants
Interventions
High-Glycemic Breakfast Containing Cereal and Fresh Mango, High-Glycemic Breakfast Containing Cereal and Table Sugar
Other
Lead sponsor
Ball State University
Other
Eligibility
18 Years to 45 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Muncie, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Sep 10, 2026, 8:09 AM EDT
Completed Not applicable Interventional

Dietary Intervention and Gastrointestinal Function in Patients With Parkinson's Disease

NCT03851861
View directory record Official record
Conditions
Parkinson Disease
Interventions
Mediterranean Diet
Other
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 85 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 3, 2021 · Synced Sep 10, 2026, 8:09 AM 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 Sep 10, 2026, 8:09 AM 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 Sep 10, 2026, 8:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Resistance Exercise Plus Vinegar Ingestion on Biomarkers in Healthy Adults

NCT06437405
View directory record Official record
Conditions
LPS, Mood Disorders, Cognitive Change
Interventions
Vinegar liquid, vinegar pill
Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 60 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Sep 10, 2026, 8:09 AM EDT
Completed No phase listed Observational

The Role of the Pregnane X Receptor (PXR) in Indole Signaling and Intestinal Permeability in Inflammatory Bowel Disease

NCT04089501
View directory record Official record
Conditions
Inflammatory Bowel Diseases
Interventions
Stool collection, Biopsy collection
Diagnostic Test
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
Up to 65 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Sep 15, 2019 · Synced Sep 10, 2026, 8:09 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Microbiome in Aging of Gut and Brain

NCT07799402
View directory record Official record
Conditions
Mild Cognitive Impairment, Alzheimer Disease (AD), Dementia
Interventions
Not listed
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2031
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 10, 2026, 8:09 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Increased Gut Permeability to Lipopolysaccharides (LPS) in Parkinson's Disease

NCT01155492
View directory record Official record
Conditions
Parkinson's Disease, Multiple System Atrophy
Interventions
Not listed
Lead sponsor
Rush University Medical Center
Other
Eligibility
25 Years and older
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 29, 2013 · Synced Sep 10, 2026, 8:09 AM EDT