KU Leuven
Leuven, Vlaams-Brabant, 3000, Belgium
NCT Number: NCT06488534
Irritable bowel syndrome (IBS) is one of the most common chronic diseases of the gut-brain axis. The underlying pathophysiology is multifactorial, poorly understood and differs between the subtypes: constipation-dominant IBS, diarrhea-dominant IBS, mixed IBS, and unspecified IBS. Although it is considered a motility disorder, no uniform motility patterns have been found in IBS patients and no link has yet been found between the motility patterns and the typical complaints such as nausea, fullness, cramps and flatulence. These symptoms are often diagnosed after a meal and research has shown that especially fermentable oligo, di, monosaccharides and polyols (FODMAPs) give rise to symptoms. Many studies have tested the effect of these FODMAPs after oral administration, but little is known about their direct effect on the colon. In this double-blind cross-over study, 15 healthy volunteers are subjected to 3 colonoscopies in which a catheter is placed to measure the pressures in the large intestine and to administer the dissolved FODMAPs. Volunteers will follow a diet low in fiber and FODMAPs 3 days before each study visit. In addition, they will have to record their daily bowel movements during the week of their study visit and fill in 2 short questionnaires on the day of the study visit regarding their gastrointestinal complaints. There will be at least 2 weeks between the 3 study visits to avoid any overlap between the FODMAPs.
Looking for future studies?
Notify Me18 year–70 year
All sexes
Interventional
Not applicable
Leuven, Vlaams-Brabant, 3000, Belgium
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Exclusion criteria
A FODMAP solution of 200 mL will be infused in the colon for over 20 min. via the lumen of the solid-state catheter for high-resolution colonic manometry.
Time frame: through study completion, an average of 1 year
evaluation of (high amplitude) propagating contractions, simultaneous pressure waves at 3 predefined timepoints: upon awakening, after FODMAP infusion and postprandially
Time frame: through study completion, an average of 1 year
symptoms will be registered every 15minutes during the evaluation of the colonic motility
Time frame: through study completion, an average of 1 year
stool form differences will be evaluated during the week of the investigation (3 days before the study visit, on the day of investigation, and 3 days after the study visit)
Time frame: through study completion, an average of 1 year
IBS symptom severity and influence of quality of life will be assessed at each investigation and compared between the 3 study arms.
Time frame: through study completion, an average of 1 year
a stool sample will be taken before the first study visit to evaluate the microbial composition
Time frame: through study completion, an average of 1 year
simultaneous evaluation of colonic motor patterns with high-resolution colonic manometry and high-resolution electrocolonography
Time frame: through study completion, an average of 1 year
evaluation of the high-resolution electronography als a non-invasive tool for the measurement of colonic motility
Universitaire Ziekenhuizen KU Leuven
Other
The Effect of Intracolonic Infusion of FODMAPS on Colonic Motility and Symptoms in Healthy Volunteers
Acronym: ICOF
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View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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