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Study identifier: NCT06413004 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Brachyspira and Intestinal Allergy-like Immune Reactions in Patients With Irritable Bowel Syndrome (IBS)

Condition: Irritable Bowel Syndrome · Food Sensitivity  ·  Sponsor: Magnus Simrén

PhaseNA
Planned participants200
Who can joinAll sexes, 18 Years to 70 Years
Healthy volunteersNo

About this study

The aim of this study is to define local immune responses in the GI tract to food antigens in IBS patients, with and without Brachyspira infection, using advanced imaging. We hypothesize that Brachyspira infection can cause IBS symptoms by inducing loss of oral tolerance to dietary antigens through development of food-specific intestinal immune reactions and subsequent development of visceral hypersensitivity. During this study, the investigators will perform confocal laser endomiscroscopy (CLE) and/or colonoscopic antigen provocation test (COLAP) to test to which food items the participants react to. Furthermore, the investigators will perform rectal barostat examination and a sigmoidoscopy without laxatives. The investigators will collect biological samples and the participants will complete several questionnaires.

This description comes directly from the study's public registry record.

Talk to the study team

Magnus Simrén, MD PhD  ·  0046313428107  ·  magnus.simren@medicine.gu.se

MagTarmlab office  ·  0046313428107  ·  magtarmlab.su@vgregion.se

Always discuss trial participation with your own doctor first.

Locations (1)

Mag-tarmlab, Dept of Internal Medicine, Sahlgrenska University HospitalGothenburg, SwedenRecruiting

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Source record: clinicaltrials.gov/study/NCT06413004