- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06291272
Effect of Methylcellulose or Psyllium on Fermentation of inUlin Assessed USing MRI (RUFUS)
Randomised Placebo Controlled Trial of Methylcellulose or Psyllium on Fermentation of inUlin Assessed USing MRI (RUFUS)
Study Overview
Status
Conditions
Detailed Description
Aim Our aim is to pilot the next study which will test the hypothesis that a gel of either methylcellulose or psyllium incorporating inulin will reduce colonic gas volumes assessed by MRI 0-6 hours and 24 hours post ingestion as compared to inulin combined with placebo, maltodextrin.
Objective The primary objective of this pilot is to find the minimum dose which will clearly show the effect of methylcellulose and /or psyllium on colonic gas as assessed by MRI. Previous studies have used large doses to ensure a large effect to avoid a type II error however the doses used are well outside the normal consumption. We wish to compare the effect of our methylcellulose mix on the fermentation of 10 and 15 g of inulin by offering different doses of fibre gel drink.,
Secondary Objectives A) Assess the effect of methylcellulose on gastric emptying, OCTT by MRI assessment of arrival of "head of meal", regional MRI colonic appearances, including signal intensity at 6 and 24 hours to determine the likely length of effect, C) to asses breath hydrogen production over 24 hour post ingestion including overnight assessments, D) to assess Whole Gut Transit Time (WGTT) using blue muffins test, E) to measure AUC (0-24) for breath methane; F) to measure gas production over 48 hours incubation in vitro model of colon (in collaboration with Quadram Institute); G) to measure metabolite production (short chain fatty acids) using in vitro model of colon(in collaboration with Quadram Institute); H) to analyse microbiota using 16sRNA gene (in collaboration with Quadram Institute); I) to assess the effect of habitual dietary FODMAPs intake on breath hydrogen response to inulin.
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Robin Spiller
- Phone Number: +447824328319
- Email: robin.spiller@nottingham.ac.uk
Study Locations
-
-
Nottinghamshire
-
Nottingham, Nottinghamshire, United Kingdom, NG7 2UH
- Recruiting
- Nottingham Digestive Disease Centre
-
Contact:
- Alaa Alhasani, BSc
- Phone Number: 01159429924
- Email: alyaa11@exmail.nottingham.ac.uk
-
Contact:
- Robin Spiller
- Phone Number: +447824328319
- Email: robin.spiller@nottingham.ac.uk
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Able to give informed consent.
- Scoring ≤5 (i.e., mild, or less) for symptoms of flatulence, bloating, abdominal pain, loose stool, and hard stool 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, lactating, or planning pregnancy during the course of the investigation 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.
- Have contraindications for MRI scanning i.e. metallic implants, pacemakers, history of metallic foreign body in eye(s) and penetrating eye injury.
- Unable to lie flat and relatively still for less than 5 minutes.
- Any medical condition making participation potentially compromising participation in the study e.g., diabetes mellitus, respiratory disease limiting ability to use breath hydrogen analyser, known intolerance to one of the test substances.
- Has a body mass index (BMI) value less than 18.5 or greater than 35.
- Will not agree to follow dietary and lifestyle restrictions required.
- 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 it might alters 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: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Psyllium
375 ml containing 15g inulin made up in 375 ml water with 15 g psyllium husk
|
15 g psyllium + 15 g inulin
15 inulin
|
Experimental: Methylcelulose
375 ml containing 15g inulin made up in 375 ml water with 15g modified methylcellulose
|
15 inulin
15 g methylcellulose + 15 g inulin
|
Placebo Comparator: Maltodextrin
375 ml containing 15g inulin made up in 375 ml water with maltodextrin powder (placebo)
|
15 inulin
15 maltodextrin
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
colonic gas volume
Time Frame: 0-6 hours
|
AUC 0-6 hours of colonic gas volume
|
0-6 hours
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
colonic gas volume at 6 hours
Time Frame: 0-6 hours
|
MRI assessed colonic gas volume at 6 hours
|
0-6 hours
|
Breath hydrogen
Time Frame: 0-6 hours
|
Area under curve (AUC) from time 0-6 hours of breath hydrogen (ppm.hours)
|
0-6 hours
|
Oro-cecal transit time
Time Frame: 0- 6 hours
|
0- 6 hours
|
|
24 hour breath hydrogen
Time Frame: 0-24 hours
|
Area under curve (AUC) from time 0-24 hours of breath hydrogen (ppm.hours)
|
0-24 hours
|
Collaborators and Investigators
Sponsor
Collaborators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- FMHS 328-0723
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.
Clinical Trials on Colon, Irritable
-
GlaxoSmithKlineCompletedIrritable ColonUnited Kingdom
-
GlaxoSmithKlineCompleted
-
GlaxoSmithKlineCompletedIrritable Bowel Syndrome (IBS) | Irritable ColonUnited States
-
University of North Carolina, Chapel HillNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)CompletedColon, IrritableUnited States
-
GlaxoSmithKlineCompleted
-
GlaxoSmithKlineCompletedIrritable ColonUnited States, Spain, South Africa, Sweden, Australia, Canada, Germany, United Kingdom, France, Netherlands
-
GlaxoSmithKlineCompletedIrritable Bowel Syndrome (IBS) | Irritable ColonUnited States, Australia
-
GlaxoSmithKlineCompletedIrritable Bowel Syndrome (IBS) | Irritable ColonUnited States, Australia
-
University of North Carolina, Chapel HillNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)CompletedInflammation | Irritable Bowel Syndrome | Colonic Diseases, Functional | Colon, IrritableUnited States
Clinical Trials on Psyllium
-
University of UtahCompletedKidney DiseaseUnited States
-
Unity Health TorontoUnknownHypercholesterolemia | Cardiovascular Risk Factor
-
Procter and GambleCompleted
-
Hungkuang UniversityNot yet recruitingSchizophrenia | Constipation | PsylliumTaiwan
-
Nutrabiotix, LLCRush University Medical CenterTerminatedConstipation-predominant IBS (IBS-C)United States
-
Procter and GambleDuke UniversityCompletedImpaired Fasting GlucoseUnited States
-
Francesco GabrielliCompletedConstipation | IncontinenceItaly
-
University of NottinghamIronwood Pharmaceuticals, Inc.Completed
-
US Department of Veterans AffairsCompletedFecal IncontinenceUnited States
-
Procter and GambleCompleted