- ICH GCP
- Registre américain des essais cliniques
- Essai clinique 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
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
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.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
-
-
Alberta
-
Calgary, Alberta, Canada, T2N 1N4
- University Of Calgary
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
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
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Double
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: 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.
|
Yellow pea hull fibre incorporated into a biscuit at 5 g/serving.
|
|
Comparateur placebo: 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.
|
Control biscuit with no yellow pea hull fibre.
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Change in Fat Mass at 12 Weeks
Délai: Value at 12 weeks minus value at baseline
|
Value at 12 weeks minus value at baseline assessed with dual energy x-ray absorptiometry.
|
Value at 12 weeks minus value at baseline
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
HbA1c at 12 Weeks
Délai: 12 weeks
|
Assessed via HbA1c
|
12 weeks
|
|
Change in Objective Appetite at 12 Weeks
Délai: 12 weeks minus baseline
|
Value at 12 weeks minus baseline energy intake during weighed lunch buffet.
|
12 weeks minus baseline
|
Autres mesures de résultats
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Cholesterol Profile at 12 Weeks
Délai: 12 weeks
|
Serum LDL (low density lipoprotein) cholesterol
|
12 weeks
|
|
Serum Cytokine at 12 Weeks
Délai: 12 weeks
|
Serum cytokine IL-6 measured at 12 weeks
|
12 weeks
|
|
Alpha Diversity of Gut Microbiota at 12 Weeks
Délai: 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.
|
12 weeks
|
|
Serum Metabolomics at 12 Weeks
Délai: 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.
|
12 weeks
|
|
Fecal Short-chain Fatty Acid Concentrations
Délai: 12 weeks
|
Fecal acetate concentration measured at 12 weeks
|
12 weeks
|
|
Fecal Bile Acid Concentration
Délai: 12 weeks
|
Fecal cholic acid concentration measured at 12 weeks
|
12 weeks
|
Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Les enquêteurs
- Chercheur principal: Raylene Reimer, PhD, RD, University Of Calgary
Publications et liens utiles
Publications générales
- 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.
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 24804
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .