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The Effect of Dietary Intervention on Symptoms, Epigenetics, and Gut Microbiota in IBS

IBS - Irritable Bowel Syndrome Clinical Trial

Official title:
The Effect of Dietary Intervention on Symptoms in Relation to Genetical Characteristics, Epigenetics, Gut Microbiota, and Autoantibodies in IBS Patients

Clinical Trial Summary

The aim of the present study is to research whether subjects with irritable bowel syndrome (IBS) display epigenetic/genetic changes or altered microbiota compared to a non-IBS control group. Further, we will investigate if these parameters as well as subjective IBS symptoms are affected by a 4-week long dietary intervention within the IBS patient group.

Clinical Trial Description

The study will be performed on 140 subjects with verified IBS. Patients will be recruited from the clinic of Gastroenterology or Internal medicine as well as primary health care centers. At the start of the study patients will fill out protocols concerning Rom IV criteria (to validate that IBS criteria are filled) as well as IBS symptom rating scales. They will be examined by a physician/researcher who will complete protocols of clinical data. Blood and fecal samples will be collected. A control group of healthy, non-IBS individuals will go through the same procedure as described above.

Study participants with IBS will thereafter be randomized to receive an alternative diet resembling the FODMAP (Fermentable, Oligo-, Di-, Mono-saccharides And Polyols) diet (n=130), or to continue with their regular diet (control group; n=20). After 4 weeks of dietary intervention, there will be a follow-up where blood and fecal samples are once again collected. At this point in time, participants will also fill in IBS symptom rating scales again.

Samples from baseline and 4 weeks will be used for genetic/epigenetic (including genomic-wide association studies), gut microbiota and inflammatory parameter analyses.

Statistics

To study differences in the above-mentioned parameters between patients and controls as well as before and after dietary intervention, Mann-Whitney U-test and Wilcoxon test will be used, respectively. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03306381
Study type Interventional
Source Region Skane
Contact
Status Completed
Phase N/A
Start date January 15, 2018
Completion date February 28, 2019
View Details
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