- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04526808
Effects of Low FODMAP Diet on Leaky Gut
December 6, 2023 updated by: Judy Nee, Beth Israel Deaconess Medical Center
Effects of Low FODMAP Diet on Leaky Gut and Mucosal Immune Cell Abundance in Diarrhea-predominant Irritable Bowel Syndrome
The pathophysiology of Irritable bowel syndrome (IBS) is multifactorial involving complex interplay of altered intestinal permeability, mucosal immune activation, visceral hypersensitivity and gut dysbiosis.
Although the exact triggers for these pathological changes in IBS are not clear but diet might play an important role.
In fact, several studies have reported improvement in gastrointestinal symptoms on a diet low in FODMAPs (LFD) in patients with IBS, specifically in diarrhea predominant IBS (IBS-D).
However, the mechanism of action of LFD is not well understood.
Study Overview
Status
Active, not recruiting
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Estimated)
40
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
Massachusetts
-
Boston, Massachusetts, United States, 02215
- Beth Israel Deaconess Medical Center
-
-
Michigan
-
Ann Arbor, Michigan, United States, 48109
- University of Michigan
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 65 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- aged 18-65 years at the time of screening
- normal serum studies including serum tissue-transglutaminase antibodies, thyroid stimulating hormone levels, C-reactive protein, complete blood count since the onset of symptoms
- normal stool studies including C diff testing, culture, ova and parasites since the onset of symptoms
- IBS-SSS score of ≥175 at the end of 7-day screening period
Exclusion criteria:
- individuals already on a LFD or other dietary restriction such as gluten free diet within the past 6 months
- individuals with any known food allergy or insulin-dependent diabetes
- known history of celiac disease, inflammatory bowel disease or microscopic colitis
- prior small bowel or colonic surgery or cholecystectomy
- pregnant patients
- antibiotics in the past 3 months
- those who regularly use mast cell stabilizers or anti-histaminic or non-steroidal anti-inflammatory agents (NSAIDs) excluding daily baby aspirin or steroids or bile-acid binder.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: FODMAP diet
|
low FODMAP diet
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
colonic permeability
Time Frame: 4 weeks
|
Lactulose:Mannitol ratio pre and post treatment
|
4 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
colonic immune cells
Time Frame: 4 weeks
|
expression of tight junction proteins pre and post treatment using RT-PCR
|
4 weeks
|
colonic microbiome
Time Frame: 4 weeks
|
relative stool microbial abundance pre and post treatment measured using 16s RNA
|
4 weeks
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Collaborators
Investigators
- Principal Investigator: Judy Nee, MD, Beth Israel Deaconess Medical Center
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
May 20, 2019
Primary Completion (Actual)
June 1, 2021
Study Completion (Estimated)
June 1, 2025
Study Registration Dates
First Submitted
August 5, 2020
First Submitted That Met QC Criteria
August 24, 2020
First Posted (Actual)
August 26, 2020
Study Record Updates
Last Update Posted (Estimated)
December 12, 2023
Last Update Submitted That Met QC Criteria
December 6, 2023
Last Verified
December 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2019P000149
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Irritable Bowel Syndrome
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ProgenaBiomeRecruitingIrritable Bowel Syndrome | Irritable Bowel Syndrome With Diarrhea | Irritable Bowel Syndrome With Constipation | Irritable Bowel Syndrome Characterized by Constipation | Irritable Bowel Syndrome Mixed | Irritable Bowel Syndrome Without Diarrhea | Irritable Bowel | Irritable Bowel Syndrome Aggravated and other conditionsUnited States
-
ClasadoCR2O B.V.RecruitingIrritable Bowel Syndrome | Irritable Bowel Syndrome - Constipation | Irritable Bowel Syndrome - Diarrhoea | Irritable Bowel Syndrome - MixedBelgium, Netherlands, United Kingdom
-
Istanbul Medipol University HospitalTepecik Training and Research Hospital; Bozyaka Training and Research Hospital and other collaboratorsRecruitingIrritable Bowel Syndrome | Irritable Bowel Syndrome With Diarrhea | Irritable Bowel Syndrome With Constipation | Irritable Bowel Syndrome MixedTurkey
-
Federal Stare Budgetary Scientific Institution,...I.M. Sechenov First Moscow State Medical University; RML INVEST, Torkhovsky...CompletedIrritable Bowel Syndrome | Irritable Bowel Syndrome With Diarrhea | Irritable Bowel Syndrome With Constipation | Irritable Bowel Syndrome MixedRussian Federation
-
University of California, Los AngelesCompletedIrritable Bowel Syndrome With Diarrhea | Irritable Bowel Syndrome With Mixed Bowel HabitsUnited States
-
University of ViennaCompleted
-
Thomayer University HospitalCharles University, Czech RepublicActive, not recruitingIrritable Bowel Syndrome With Diarrhea | Irritable Bowel Syndrome MixedCzechia
-
Shahid Beheshti University of Medical SciencesCompletedIrritable Bowel DiseaseIran, Islamic Republic of
-
GlaxoSmithKlineCompletedIrritable Bowel Syndrome (IBS) | Irritable ColonUnited States
-
Universidad Autonoma de ChihuahuaNot yet recruitingIrritable Bowel Syndrome | Constipation-predominant Irritable Bowel Syndrome | Diarrhea- Irritable Bowel Syndrome
Clinical Trials on FODMAP diet
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Ashok TutejaUnited States Department of DefenseUnknown
-
Tel-Aviv Sourasky Medical CenterUnknownIrritable Bowel SyndromeIsrael
-
Universitair Ziekenhuis BrusselRecruitingIrritable Bowel SyndromeBelgium
-
University of ZurichUnknownFunctional Gastrointestinal DisordersSwitzerland
-
Northwestern UniversityWithdrawn
-
Beth Israel Deaconess Medical CenterEnrolling by invitation
-
Ohio State UniversityCompletedAutism Spectrum DisorderUnited States
-
University of NottinghamKing's College LondonCompletedIrritable Bowel SyndromeUnited Kingdom
-
Hospital General de MexicoUnknownIBS - Irritable Bowel Syndrome | UC - Ulcerative Colitis | IBD - Inflammatory Bowel DiseaseMexico
-
Taipei Veterans General Hospital, TaiwanNot yet recruitingIrritable Bowel Syndrome