ClinicalTrials.gg
Status unknownNCT05058131Updated Apr 21, 2022

Modulation of Intestinal Barrier Function and Inflammation Via Butyrate-promoting Dietary Fibre

An interventional study of Dietary fibre and Placebo compound in Microscopic Colitis, sponsored by Örebro University, Sweden. Status unknown at 1 site in Sweden. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2022-04-21.

Sponsored by Örebro University, Sweden · Not applicable, Interventional, and Basic science

The sponsor has not verified this record recently (last verified Apr 2022), so the status shown — last known as Recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This study examines how a fermentable dietary fibre known to promote butyrate production impacts intestinal barrier function, intestinal microbiota, intestinal inflammation, and gastrointestinal symptoms in patients with microscopic colitis.

Read the detailed description

The study examines the effects of a 6-week supplementation period with a dietary fibre product (type of wheat bran) on intestinal barrier function, intestinal inflammation, intestinal microbiota, and gastrointestinal symptoms in patients with MC. The study subjects will consume the study products (placebo-fibre, butyrate-promoting fibre) as a powder supplemented to their daily habitual diet. A maltodextrin-based product is used as placebo. After giving their informed consent, the study subjects fill out a background questionnaire to assess their eligibility for the study (Visit 1). Participants deemed suitable for the study will be randomised into two study arms (placebo-fibre, butyrate-promoting fibre) before undergoing a baseline visit (Visit 2) before the start of the intervention period. After the 6-week intervention period, the participants will come back for a final visit (Visit 3). In vivo intestinal permeability will be measured using the standard multi-sugar test at visits 2 and 3. Blood and faecal samples will also be collected during visits 2 and 3. In addition to the visits described above, a subset of patients (max. 20) will undergo a colonoscopy before and at the end of the intervention period at Örebro University Hospital where an experienced gastroenterologist collects 16 colonic biopsies. These colonic biopsies are mounted in an Ussing chamber system to specifically study colonic permeability. During visits 2 and 3, the participants also complete questionnaires to assess their gastrointestinal symptoms, quality of life, physical activity, and dietary habits. During the study period, the participants will also keep a daily diary recording the number of diarrheal and loose stools. The participants are asked to maintain their habitual diet and lifestyle as well as not to consume probiotic or prebiotic supplements.

02

Conditions studied

  • Microscopic Colitis

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03

In context

Colitis, Microscopic

23 studies on the registry are indexed under Colitis, Microscopic; 6 are open to participants now.

This study's planned enrollment of 40 is below the median of 47 across 14 interventional studies indexed under Colitis, Microscopic.

Browse Colitis, Microscopic studies →

Lead sponsor

Örebro University, Sweden is the lead sponsor of 86 studies on the registry; 14 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Signed
  2. Diagnosis of microscopic colitis (collagenous or lymphocytic colitis)
  3. Active disease with no medication (e.g. budesonide) or stable budesonide treatment with or without symptoms
  4. Age between 18-75

Exclusion criteria

Exclusion Criteria:

  1. Previous diagnosis of other organic gastrointestinal disease that interferes with the outcome parameters used in this study (e.g. ulcerative colitis)
  2. Previous abdominal surgery which might influence gastrointestinal function, except appendectomy and cholecystectomy
  3. History of or present gastrointestinal or polyposis
  4. Diagnosis of gastrointestinal infection within the last 6 months
  5. Current diagnosis of dementia, severe depression, major psychiatric disorder, or other incapacity for adequate cooperation
  6. Chronic neurological/neurodegenerative disease (e.g. Parkinson's disease)
  7. disease (e.g. rheumatoid arthritis)
  8. Chronic pain syndromes (e.g. fibromyalgia)
  9. Chronic fatigue syndrome
  10. Severe endometriosis
  11. Coeliac disease
  12. Diagnosis of lactose intolerance within the last 3 months
  13. Pregnancy or breast-feeding
  14. Regular intake of anti-inflammatory and/or other medication than budesonide within the last 3 months
  15. Intake of proton pump inhibitors (e.g. omeprazol) within the last 4 weeks
  16. Use of anti-depressants within the last 3 months
  17. Regular intake of mast cell stabilizing drugs (e.g. sodium cromoglycate) within the last 3 months
  18. Antimicrobial treatment within the last 12 weeks before baseline sampling
  19. Antimicrobial prophylaxis (e.g. urinary tract infection)
  20. Regular intake of probiotics, nutritional supplements, or herb products that might affect intestinal function within the last 4 weeks if the investigator considers that those could affect study outcome
  21. Inability to maintain current diet and lifestyle during the study period
  22. Alcohol or drug abuse
  23. Any present or past disease/condition which the investigator considers to possibly interfere with the study outcome
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
40 participants (estimated)

Study arms

  • Active comparator
    Dietary fibre

    Butyrate-promoting dietary fibre

    Dietary Supplement: Dietary fibre

  • Placebo comparator
    Placebo compound

    Placebo compound

    Dietary Supplement: Placebo compound

Interventions

  • Dietary supplementDietary fibre

    Dietary fibre as a powder, 24 g per day for 6 weeks

  • Dietary supplementPlacebo compound

    Maltodextrin powder, 24 g per day for 6 weeks

06

What researchers measure

Primary outcomes

  1. Colonic permeability in vivo

    Difference in urinary sucralose/erythritol excretion ratio between the study arms

    Time frame: 6 weeks

Secondary outcomes

  1. Small intestinal permeability in vivo

    Difference in urinary lactulose/rhamnose excretion ratio between the study arms

    Time frame: 6 weeks

  2. Colonic permeability ex vivo in Ussing chambers

    Difference in the translocation of FITC-labeled dextran and horseradish peroxidase between the study arms

    Time frame: 6 weeks

  3. Concentrations of intestinal fatty-acid binding protein

    Difference in plasma concentrations of intestinal fatty-acid binding protein between the study arms

    Time frame: 6 weeks

  4. Concentrations of lipopolysaccharide-binding protein

    Difference in plasma levels of lipopolysaccharide-binding protein between the study arms

    Time frame: 6 weeks

  5. Concentratios of faecal calprotectin

    Difference in faecal levels of calprotectin between the study arms

    Time frame: 6 weeks

  6. Concentrations of faecal myeloperoxidase

    Difference in faecal levels of myeloperoxidase between the study arms

    Time frame: 6 weeks

  7. Concentrations of high-sensitive C-reactive protein

    Difference in plasma levels of high-sensitive C-reactive protein between the study arms

    Time frame: 6 weeks

  8. Concentrations of inflammatory cytokines

    Difference in TNF-a, IFN-y, IL-1B, IL-4, IL-6, IL-8, IL-10 levels in serum between the study arms

    Time frame: 6 weeks

  9. Composition of intestinal microbiota

    Difference in the composition of intestinal microbiota between the study arms

    Time frame: 6 weeks

  10. Functionality of intestinal microbiota

    Difference in the levels of intestinal microbiota -derived metabolites in the serum and faeces between the study arms

    Time frame: 6 weeks

Other outcomes

  1. Faecal output measured by a daily diary

    Difference in the number of diarrhoeal stools per day between the study arms

    Time frame: 6 weeks

  2. Gastrointestinal symptoms measured by Gastrointestinal Symptom Rating Scale

    Difference in the frequency and severity of gastrointestinal symptoms between the study arms (15 questions with a scale of 1-7, minimum value 1, maximum 7, higher score correspond to a worse outcome)

    Time frame: 6 weeks

  3. Quality of life measured by EQ-5D-5L questionnaire

    Difference in the scores of the quality of life between the study arms (Visual Analog Scale 0-100, lower value corresponds to a worse outcome)

    Time frame: 6 weeks

  4. Anxiety and depression measured by Hospital Anxiety and Depression Scale

    Difference in the scores of anxiety and depression between the study arms (depression and anxiety scores separately, 7 questions each with a scale of 0-3, minimum score 0, maximum score 21 in both, higher value corresponds to a worse outcome)

    Time frame: 6 weeks

  5. General well-being measured by Short Health Scale

    Difference in the scores of general well-being between the study arms (4 questions with a scale of 1-7, higher scores correspond to a worse outcome)

    Time frame: 6 weeks

  6. Concentrations of systemic and faecal markers of oxidative stress

    Difference in blood and faecal markers of oxidative stress (e.g. glutathione) between the study arms

    Time frame: 6 weeks

  7. Concentrations of faecal chromogranins

    Difference in faecal levels of chromogranins between the study arms

    Time frame: 6 weeks

07

Study locations

1 of 1 sites recruiting
  • Örebro University
    Örebro, Örebro Län 703 62, Sweden
    Recruiting
    • Richard A Forsgård, PhD · Contactrichard.forsgard@oru.se · 0790614037
    • Robert J Brummer, MD, PhD · Principal investigator
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 21, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05058131
Lead sponsor
Örebro University, Sweden
Responsible party
Robert Brummer (Professor, Örebro University, Sweden) — Principal investigator
First posted
Sep 27, 2021
Start date
Nov 3, 2021
Primary completion
Dec 30, 2022 (estimated)
Completion
Dec 30, 2022 (estimated)
Last update
Apr 21, 2022

Study contacts

Richard A Forsgård, PhD
Contact
richard.forsgard@oru.se
0790614037 ext. +46
Robert J Brummer, MD, PhD
principal investigator · Örebro University, Sweden

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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