AzTrials
AzTrials

Change of Transit or CirculationNCT02491125

The Effect of Prebiotics on Gastrointestinal Functioning and Metabolism

A study testing soluble wheat bran fibre in people with Change of Transit or Circulation and Obesity, run by Maastricht University Medical Center.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The study will investigate the effect of cereal based prebiotic fibres on intestinal health and functioning and host metabolism. Read more about this study

Who is it for?
Ages 20 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Change of Transit or Circulation, Obesity
What is being tested?
soluble wheat bran fibre
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
48 participants
Where
No sites listed yet
Study dates
Jul 2015to Dec 2016
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Overweight to obese men and women (BMI ≥ 25 kg/m2 <35 kg/m2)
  • Aged 20-50 years
  • Caucasian
  • Normal fasting glucose (<6.1 mmol/L.)
  • Normal blood pressure (systolic blood pressure 100-140 mmHg, diastolic blood pressure 60-90 mmHg)
  • Weight stable in last 3 months (±2 kg)
  • A low defecation frequency, <4 times/week and no constipation or underlying pathology, as determined by gastro-intestinal questionnaires).
  • A slow whole gut transit (>35h)

Who cannot join

  • Woman lactating, pregnant (where pregnancy is defined as the state of a female after conception and until the termination of gestation, confirmed by a positive hCG laboratory test) or (post)-menopausal
  • Regular smokers
  • People with intensive fitness training, eg. athletes (≥3 per week ≥ 1 hour training)
  • Diabetes Mellitus (defined as FPG ≥ 7.0 mmol/l and or 2h PG ≥ 11.1 mmol/l)
  • Gastro-intestinal diseases or abdominal surgery, cardiovascular diseases, cancer, liver or kidney malfunctioning (determined based on ALAT and creatinine levels, respectively) disease with a life expectation shorter than 5 years
  • Following a hypocaloric diet
Show all 19Show fewer
  • Gluten intolerance
  • Regular use of laxation products, or use of antibiotics, probiotics or prebiotics 3 months prior to the start of the study
  • More than 2 symptoms occurring over a period of 12 weeks in the preceding 12 months such as
  • Straining in >1/4 defecations;
  • Lumpy or hard stools in >1/4 defecations;
  • Sensation of incomplete evacuation in >1/4 defecations;
  • Sensation of anorectal obstruction/blockade in >1/4 defecations
  • Manual maneuvers to facilitate >1/4 defecations (e.g., digital evacuation, support of the pelvic floor); and/or
  • <3 defecations/week
  • Current use of medication interfering with study intervention or interfering with study endpoints/hypotheses
  • Not to be able to understand the study information
  • Blood donation 2 months prior to the study and during the study
  • Participation in other studies

About this study

Official title: Effect of Prebiotic Fibre on Intestinal Health and Functioning

The study will investigate the effect of cereal based prebiotic fibres on intestinal health and functioning and host metabolism.

Read the detailed description

A human dietary intervention study will be performed in overweight to obese subjects with a slow gastrointestinal transit time comparing the effects of a soluble prebiotic fibre vs. placebo on gut health, including gut microbiota composition, gastrointestinal transit time, metabolic health and quality of life.

Being tested
soluble wheat bran fibre, Placebo
Medical subject headings
Obesity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • soluble wheat bran fibreDietary supplement

    12 weeks daily intake of 15g of soluble wheat bran fibre

  • PlaceboDietary supplement

    Also called Maltodextrin

    12 weeks daily intake of 15g of maltodextrin

Study groups in NCT02491125
Study groupRoleWhat they receive
PlaceboPlacebo comparator12 weeks placebo maltodextrin 15g/day ( 5 g in beverage, to be consumed three times a day)
Receives: Dietary Supplement: Placebo
soluble wheat bran fibreExperimental12 weeks soluble wheat bran fibre 15g/day (5 g in beverage, to be consumed three times a day)
Receives: Dietary Supplement: soluble wheat bran fibre

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Whole gut transit time [hours]

    Whole gut transit time as measured by radio-opaque marker method

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

Secondary outcomes (11)
  1. Gastric emptying [min]

    Gastric emptying measured by isotope breath test

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

  2. Oro-cecal transit time [min]

    Oro-cecal transit time measured by hydrogen breath test

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

  3. Defecation frequency (bowel movement per day)

    Defecation frequency as measured via questionnaire

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

  4. Energy expenditure

    Energy expenditure measured by indirect calorimetry

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

  5. Substrate oxidation

    Fat and carbohydrate oxidation measured by indirect calorimetry

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

  6. Plasma inflammatory cytokines Interleukin-6,8 and 1 (pg/ml)

    IL-6, IL8,IL-1 measured by enzyme linked immunosorbent assay

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

  7. Adipose tissue gene expression

    Adipose tissue gene expression measured by quantitative real time polymerase chain reaction

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

  8. Gut permeability

    Gut permeability as measured by multi sugar assay

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

  9. Microbiota composition

    Microbiota composition as measured by illumina sequencing in feces

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

  10. Fecal Short chain fatty acid concentrations

    Fecal Short chain fatty acid concentrations measured by ion exchange chromatography with conductivity detection

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

  11. Plasma short chain fatty acid concentrations

    Plasma short chain fatty acid concentrations measured by liquid chromatography-mass spectrometry

    Measured: measured at baseline at week 1 and directly after the 12 week supplementation

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Jul 2015 (estimated)
  2. Study startJul 2015
  3. Primary completionDec 2016
  4. Study completionDec 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
48 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02491125
Sponsor's protocol ID
NL52300.068.15
Status last verified
Oct 2018
First submitted
23 Mar 2015
Last updated
8 Jul 2019
Results posted
No
Data monitoring committee
No

Publications

  • Muller M, Hermes GDA, Emanuel E C, Holst JJ, Zoetendal EG, Smidt H, Troost F, Schaap FG, Damink SO, Jocken JWE, Lenaerts K, Masclee AAM, Blaak EE. Effect of wheat bran derived prebiotic supplementation on gastrointestinal transit, gut microbiota, and metabolic health: a randomized controlled trial in healthy adults with a slow gut transit. Gut Microbes. 2020 Nov 9;12(1):1704141. doi: 10.1080/19490976.2019.1704141. Epub 2020 Jan 25.

    PubMed 31983281

Questions about this trial

What is this clinical trial studying?

A study testing soluble wheat bran fibre in people with Change of Transit or Circulation and Obesity, run by Maastricht University Medical Center.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 19 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Jul 2019. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Whole gut transit time [hours] (time frame: measured at baseline at week 1 and directly after the 12 week supplementation). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02491125, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jul 2019.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in