- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT01895179
Comparison of Time-Restricted Feeding Versus Grazing (TIMED EATING)
Time-Restricted Feeding to Improve Glucose Tolerance and Vascular Condition
The purpose of this pilot study is to find out what eating meals in a short time period early in the day (time-restricted feeding) versus eating meals spread out during the day (grazing) does to the body's ability to control blood sugar and to the health of its blood vessels.
The investigators hypothesize that time-restricted feeding will be more effective at improving glucose tolerance and vascular condition (inflammation and micro- and macro-vascular function) than grazing.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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-
Louisiana
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Baton Rouge, Louisiana, États-Unis, 70808
- Pennington Biomedical Research Center
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Are male
- Overweight: Have a body mass index between 25 and 50 kg/m^2 inclusive (a number calculated from height and weight)
- Are 35-70 years of age
- Have a hemoglobin A1C between 5.5 - 6.4% or prior medical indication of prediabetes
- Have a blood sugar level between 140 and 199 mg/dL two hours after drinking a sugary solution (OGTT)
- Have been eating dinner at least 8.5 hours after eating breakfast at least 90% of the time during the past year
- Have not fasted (go for a day without any food) more than 12 days total during the past year
- Be willing to eat most meals at Pennington Biomedical and/or under supervision
- Not eat any food other than that served by Pennington Biomedical
- Not drink any alcohol, juice, or other beverages that have calories other than what is served by Pennington Biomedical
- Keep water and no-calorie drinks like tea or diet soda the same during both of the timed eating periods
- Be willing to eat your meals according to the fixed schedules
Exclusion Criteria:
- Have diabetes or are on anti-diabetes medication
- Have evidence of cardiovascular disease
- Suffer from significant cardiovascular, renal (kidney), cardiac (heart), liver, lung or nervous system disease
- Evidence of significant gastrointestinal issues or surgery that impacts nutrient absorption
- Regularly use medications such as steroids, beta blockers, and adrenergic-stimulating agents
- Are on any regular medicine that has not had the same dose for 1 month or longer
- Have a clinically significant abnormality as measured by a blood test
- Regularly drink alcohol (more than 2 servings per day)
- Have to do any kind of heavy physical activity
- Currently perform overnight shift work more than one day a week
- Are not able to eat only the food served to you by Pennington Biomedical, while in the study
- Are not able to stop drinking alcohol or other drinks with calories (e.g., soda, juice) other than what is served to you by Pennington Biomedical, while in the study
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: La prévention
- Répartition: Randomisé
- Modèle interventionnel: Affectation croisée
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
---|---|
Expérimental: Time-Restricted Feeding (early in the day eating)
Participants will consume all meals early in the day and within a 6-hour window.
|
Time-restricted feeding is a variant of intermittent fasting that involves eating all of one's calories within a few hours each day (typically 4-9 hours), followed by a daily fast of 15-20 hours.
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Comparateur placebo: Grazing
Participants will eat meals spread out over the course of the day.
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Grazing involves eating meals spread out over the course of the day.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Change in Glucose Tolerance
Délai: Before and after 5 weeks on each feeding schedule
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Glucose tolerance and indices of glucose homeostasis will be determined using an Oral Glucose Tolerance Test (OGTT).
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Before and after 5 weeks on each feeding schedule
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Change in Vascular Function
Délai: Before and after 5 weeks on each feeding schedule
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Macro- and micro-vascular function will be assessed by Radial Artery Applanation Tonometry and by Orthogonal Polarization Spectroscopy.
The endpoints measured by these two tests include aortic blood pressure, arterial stiffness, capillary density, and red blood cell velocity.
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Before and after 5 weeks on each feeding schedule
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Change in Inflammation and Metabolic Markers
Délai: Before and after 5 weeks on each feeding schedule
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Serum markers of inflammation, such as C-Reactive Protein (CRP) and inflammatory cytokines, and of metabolic processes will be measured (composite measure).
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Before and after 5 weeks on each feeding schedule
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Collaborateurs et enquêteurs
Parrainer
Publications et liens utiles
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
- PBRC 13017
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Étudie un produit d'appareil réglementé par la FDA américaine
produit fabriqué et exporté des États-Unis.
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 .
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