- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT01719900
Evaluation of Pulse Fibre Supplementation on Obesity and the Metabolic Syndrome
Evaluation of Pulse Fibre Supplementation in Obesity and the Metabolic Syndrome: Generating Evidence in Support of Health Claims
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
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.
Studietype
Registrering (Faktiske)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
-
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Alberta
-
Calgary, Alberta, Canada, T2N 1N4
- University Of Calgary
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
- 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
Exclusion Criteria:
- 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
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Dobbelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Eksperimentell: Pulse Fibre
The 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.
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Yellow pea hull fibre incorporated into a biscuit at 5 g/serving.
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Placebo komparator: Control
The 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.
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Control biscuit with no yellow pea hull fibre.
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in Fat Mass at 12 Weeks
Tidsramme: Value at 12 weeks minus value at baseline
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Value at 12 weeks minus value at baseline assessed with dual energy x-ray absorptiometry.
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Value at 12 weeks minus value at baseline
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
HbA1c at 12 Weeks
Tidsramme: 12 weeks
|
Assessed via HbA1c
|
12 weeks
|
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Change in Objective Appetite at 12 Weeks
Tidsramme: 12 weeks minus baseline
|
Value at 12 weeks minus baseline energy intake during weighed lunch buffet.
|
12 weeks minus baseline
|
Andre resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Cholesterol Profile at 12 Weeks
Tidsramme: 12 weeks
|
Serum LDL (low density lipoprotein) cholesterol
|
12 weeks
|
|
Serum Cytokine at 12 Weeks
Tidsramme: 12 weeks
|
Serum cytokine IL-6 measured at 12 weeks
|
12 weeks
|
|
Alpha Diversity of Gut Microbiota at 12 Weeks
Tidsramme: 12 weeks
|
Gut microbiota alpha diversity measured at 12 weeks as Chao index.
Chao index is an abundance-based estimator of species richness within a sample.
There are no preset minimum and maximum values but scores typically range from 0 to 4000.
A higher score is generally regarded as better.
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12 weeks
|
|
Serum Metabolomics at 12 Weeks
Tidsramme: 12 weeks
|
Serum metabolomics measured at 12 weeks using 1H-NMR analysis.
Principal component analysis is used to see if two or more groups of samples separate into distinct clusters.
The principal components generated in this analysis range from 0-100%.
A higher value means that more variability among the samples is explained by this principal component.
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12 weeks
|
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Fecal Short-chain Fatty Acid Concentrations
Tidsramme: 12 weeks
|
Fecal acetate concentration measured at 12 weeks
|
12 weeks
|
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Fecal Bile Acid Concentration
Tidsramme: 12 weeks
|
Fecal cholic acid concentration measured at 12 weeks
|
12 weeks
|
Samarbeidspartnere og etterforskere
Sponsor
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Raylene Reimer, PhD, RD, University Of Calgary
Publikasjoner og nyttige lenker
Generelle publikasjoner
- 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.
- 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.
- 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.
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- 24804
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
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