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ObesityNCT01719900

Evaluation of Pulse Fibre Supplementation on Obesity and the Metabolic Syndrome

A study testing Pulse fibre in people with Obesity, run by University of Calgary at 1 site in Canada.

Completed

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

Official record
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Trial summary

The recent dramatic increase in obesity has been linked to a reduction of dietary fibre intake. We hypothesized that supplementing the diet of overweight and obesity adults with pulse fibre will improve their metabolic status, chiefly defined as greater weight loss. Read more about this study

Who is it for?
Ages 18 to 70 yearsHealthy volunteers can take part
Conditions the study is for
Obesity
What is being tested?
Pulse fibre
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
53 participants
Where
1 siteCanada
Study dates
Oct 2012to 26 Nov 2018
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Males and females
  • Age 18 - 70 years
  • BMI 25 - 38 kg/m-2
  • Stable body weight for at least 3 months prior to the study

Who cannot join

  • Concomitant use of any weight loss medication, diet or exercise regime
  • Use of corticosteroids, anti-depressants, anti-epileptic medications, lipid lowering medication, diabetes medications
  • Previous bariatric or other intestinal surgeries
  • Pregnancy or lactation
  • Weight loss > 3 kg within preceding 3 months to enrollment
  • Use of bulk laxatives or probiotics/prebiotics supplements
  • Antibiotic use in the past month
  • Clinically significant cardiovascular or respiratory or liver disease

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • University of Calgary

    Calgary, Alberta, T2N 1N4

Other trials in Canada

About this study

Official title: Evaluation of Pulse Fibre Supplementation in Obesity and the Metabolic Syndrome: Generating Evidence in Support of Health Claims

The recent dramatic increase in obesity has been linked to a reduction of dietary fibre intake. We hypothesized that supplementing the diet of overweight and obesity adults with pulse fibre will improve their metabolic status, chiefly defined as greater weight loss. Other metabolic health improvements may include improved glucose control and reduced inflammatory markers.

Read the detailed description

The main objective of our study is to assess the effects of pulse fibre supplementation on weight loss in an overweight and obese adult population.

Primary objective - To determine the effects of a 12 week intake of 15g/day of pea hull fibre on weight loss supported by body composition measures.

Secondary objective - To measure glucose control and appetite regulation in overweight and obese adults consuming 15g/day of pea hull fibre compared to a placebo control with the use of plasma HbA1c and an oral glucose tolerance test (OGTT).

Tertiary objective - To examine mechanisms of action of pulse fibre supplementation by determining the impact of pulse fibre supplementation on gut microbiota, serum metabolomics and fecal short-chain fatty acid and bile acid concentrations.

Conditions
Obesity
Being tested
Pulse fibre, Control
Keywords
Dietary intervention, Dietary fibre, Obesity, Metabolic syndrome, Weight loss, Glucose regulation, Pulse fibre
Medical subject headings
Obesity, Metabolic Syndrome, Weight Loss

What participants receive

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

  • Pulse fibreDietary supplement

    Yellow pea hull fibre incorporated into a biscuit at 5 g/serving.

  • ControlDietary supplement

    Control biscuit with no yellow pea hull fibre.

Study groups in NCT01719900
Study groupRoleWhat they receive
Pulse FibreExperimentalThe intervention group will receive a biscuit containing 5g/serving of yellow pea fibre to be eaten 3 times per day approximately 30 minutes prior to their 3 largest meals.
Receives: Dietary Supplement: Pulse fibre
ControlPlacebo comparatorThe placebo group will receive a biscuit an isocaloric control biscuit that is similar in taste and texture and without pulse fibre to be eaten 3 times per day approximately 30 minutes prior to their 3 largest meals.
Receives: Dietary Supplement: Control

What is being measured

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

  1. Change in Fat Mass at 12 Weeks

    Value at 12 weeks minus value at baseline assessed with dual energy x-ray absorptiometry.

    Measured: Value at 12 weeks minus value at baseline

Secondary outcomes (2)
  1. HbA1c at 12 Weeks

    Assessed via HbA1c

    Measured: 12 weeks

  2. Change in Objective Appetite at 12 Weeks

    Value at 12 weeks minus baseline energy intake during weighed lunch buffet.

    Measured: 12 weeks minus baseline

Timeline

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

  1. First posted1 Nov 2012 (estimated)
  2. Study startOct 2012
  3. Primary completionMay 2013
  4. Study completion26 Nov 2018

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
53 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01719900
Sponsor's protocol ID
24804
Status last verified
Jan 2020
First submitted
23 Oct 2012
Last updated
21 Jan 2020
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Lambert JE, Parnell JA, Han J, Sturzenegger T, Paul HA, Vogel HJ, Reimer RA. Evaluation of yellow pea fibre supplementation on weight loss and the gut microbiota: a randomized controlled trial. BMC Gastroenterol. 2014 Apr 8;14:69. doi: 10.1186/1471-230X-14-69.

    PubMed 24712378
  • Lambert JE, Parnell JA, Tunnicliffe JM, Han J, Sturzenegger T, Reimer RA. Consuming yellow pea fiber reduces voluntary energy intake and body fat in overweight/obese adults in a 12-week randomized controlled trial. Clin Nutr. 2017 Feb;36(1):126-133. doi: 10.1016/j.clnu.2015.12.016. Epub 2016 Jan 11.

    PubMed 26811130
  • Mayengbam S, Lambert JE, Parnell JA, Tunnicliffe JM, Nicolucci AC, Han J, Sturzenegger T, Shearer J, Mickiewicz B, Vogel HJ, Madsen KL, Reimer RA. Impact of dietary fiber supplementation on modulating microbiota-host-metabolic axes in obesity. J Nutr Biochem. 2019 Feb;64:228-236. doi: 10.1016/j.jnutbio.2018.11.003. Epub 2018 Nov 26.

    PubMed 30572270

Questions about this trial

What is this clinical trial studying?

A study testing Pulse fibre in people with Obesity, run by University of Calgary at 1 site in Canada.

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 4 inclusion and 8 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 21 Jan 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Yes. Results are posted in the registry (first posted 21 Jan 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Change in Fat Mass at 12 Weeks (time frame: Value at 12 weeks minus value at baseline). 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 NCT01719900, which also lists 3 linked publications.

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 21 Jan 2020.

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