- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05619341
Effect of Rate Of Delivery on Colonic Fermentation of inuliN (EON) (EON)
To test whether slowing the rate of delivery of inulin with either psyllium or divided dosing of inulin, will reduce colonic gas production as compared to inulin combined with placebo.
To obtain pilot data on link between habitual diet and fermentation of inulin.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Our challenge is to understand how fibre interacts with whole-gut function to alter colonic fermentation of fermentable oligo-di-mono-saccharides and polyhydric alcohols (FODMAPs). We have previously performed the study entitled the Effect of modified Cellulose On COlonic fermentAtion of inulin (COCOA) in which a modified methylcellulose (food grade product -modified celluloses- which can form gels at body temperature ) was used and showed some reduction, but this was not statistically significant, and much less than with psyllium. We wish to determine whether slowing delivery of inulin will produce a lowering of breath hydrogen equivalent to that seen with psyllium. We also found that the breath hydrogen curve had not shown a consistent fall by 6 hours suggesting that 6 hours was not long enough to accurately define the area under the curve (AUC). We now plan to use breath sampling bags to collect breath samples at home to define the breath hydrogen response over whole 24-hour period post ingestion of test drink. We also hypothesise that the colonic microbiota will influence the fermentation of inulin and will collect stool samples to allow future work to correlate microbiota with fermentation rates as part of a separate Medical Research Council funded study.
Aim Our aim is to test the hypothesis that slowing delivery of inulin will achieve a similar reduction in breath hydrogen production over the 24 hours following ingestion as seen when co-administered with psyllium.
Objective The primary objective is to compare the effect of bolus administration of inulin (co-administrated with psyllium or maltodextrin placebo) with divided dose delivery of inulin over 6 hours on total gas production over 24 hours.
Secondary Objectives Secondary objectives will be 1) to compare breath hydrogen AUC 0-24h with values based on AUC 0-6h that was assessed in the previous study (COCOA) to see how much the shorter period underestimates H2 production; 2) to assess breath methane production AUC 0-24h after consumption of test drinks; and 3) to collect pilot data on habitual dietary FODMAPs intake to assess whether this alters fermentation of inulin.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Nottinghamshire
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Nottingham, Nottinghamshire, United Kingdom, NG7 2UH
- Nottingham Digestive Disease Centre
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Aged 18 or older.
- Able to give informed consent.
- Scoring ≤3 (i.e., mild, or less) for symptoms of flatulence, bloating and abdominal pain in previous 2 weeks using a modified Gastrointestinal Symptom Rating Scale (5).
- Agrees to consume the meals provided.
- Agrees to not smoke during the breath hydrogen sampling period
Exclusion Criteria:
- Pregnancy declared by candidate.
- History declared by the candidate of pre-existing gastrointestinal disorder that may affect bowel function.
- Reported history of previous resection of the oesophagus, stomach, or intestine (excluding appendix).
- Intestinal stoma.
- Any medical condition potentially compromising participation in the study e.g., type 1 diabetes mellitus, respiratory disease limiting ability to use breath hydrogen analyser, known intolerance to one of the test substances.
- Will not agree to dietary restrictions required nor consume the standard meals required during the study day.
- Unable to stop drugs known to alter GI motility including mebeverine, opiates, monoamine oxidase inhibitors, phenothiazines, benzodiazepines, calcium channel antagonists for the duration of the study (Selective serotonin reuptake inhibitors, low dose tricyclic antidepressants, antihistamines, and oral contraceptive pill will be recorded in the CRF but will not be an exclusion criteria).
- Participants who are taking antibiotics or probiotics as they might alter gut microbiota.
- Poor understanding of English language.
- Participation in night shift work the week prior to the study day. Night work is defined as working between midnight and 6.00 AM.
- Anyone who in the opinion of the investigator is unlikely to be able to comply with the protocol e.g., cognitive dysfunction, chaotic lifestyle related to substance abuse.
- Having taken part in a research study in the last 3 months involving invasive procedures or an inconvenience allowance.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: inulin
20g inulin in 500ml water
|
long chain fructan
|
Active Comparator: inulin + psyllium
Inulin 20g + 20g psyllium in 500 ml water
|
long chain fructan
psyllium 20g
|
Active Comparator: inulin divided doses
2.5 g inulin in 62.5ml water given at 45 minute intervals
|
long chain fructan
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Hydrogen production
Time Frame: 2 days
|
AUC 0-24h
|
2 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Methane production
Time Frame: 2 days
|
AUC 0-24h
|
2 days
|
Intake of FOOMDAPS
Time Frame: 4 days
|
24 h food diary X 4
|
4 days
|
Collaborators and Investigators
Sponsor
Publications and helpful links
General Publications
- Galvin MA, Kiely M, Harrington KE, Robson PJ, Moore R, Flynn A. The North/South Ireland Food Consumption Survey: the dietary fibre intake of Irish adults. Public Health Nutr. 2001 Oct;4(5A):1061-8. doi: 10.1079/phn2001187.
- Dionne J, Ford AC, Yuan Y, Chey WD, Lacy BE, Saito YA, Quigley EMM, Moayyedi P. A Systematic Review and Meta-Analysis Evaluating the Efficacy of a Gluten-Free Diet and a Low FODMAPs Diet in Treating Symptoms of Irritable Bowel Syndrome. Am J Gastroenterol. 2018 Sep;113(9):1290-1300. doi: 10.1038/s41395-018-0195-4. Epub 2018 Jul 26.
- Gunn D, Abbas Z, Harris HC, Major G, Hoad C, Gowland P, Marciani L, Gill SK, Warren FJ, Rossi M, Remes-Troche JM, Whelan K, Spiller RC. Psyllium reduces inulin-induced colonic gas production in IBS: MRI and in vitro fermentation studies. Gut. 2022 May;71(5):919-927. doi: 10.1136/gutjnl-2021-324784. Epub 2021 Aug 5.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- FMHS 17-0622
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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.
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