Dysfunctional Adiposity and Glucose Impairment (DICAMANO)
24 avril 2018 mis à jour par: Clinica Universidad de Navarra, Universidad de Navarra
Discovering Carbohydrate Metabolism Alterations in Normoglycemic Obese Patients Study
This is a large and comprehensively phenotyped cohort with fasting glycaemia where the predictive value of body composition and anthropometric measures of total and central fat distribution for postprandial carbohydrate intolerance are studied.
Aperçu de l'étude
Statut
Complété
Description détaillée
Subjects aged 18-70 years, who attended the Department of Endocrinology and Nutrition of the Clínica Universidad de Navarra from 2009-2014 for a check-up were offered to participate in the DICAMANO study.
853 subjects agreed to take part.
Only those individuals with a normal fasting glucose level (≤5.5 mmol l-1) were analysed.
Subjects with T2DM or severe renal, liver or thyroid dysfunction were excluded.
Participants were instructed to temporarily discontinue for 48 hours any medication known to affect glucose or lipid metabolism.
On the day of the study visit, each subject had a complete routine clinical assessment to evaluate the presence of cardiovascular, respiratory, renal or endocrine disorders.
All patients underwent a 75-g OGTT with a concomitant anthropometric study, blood pressure monitoring and lipid profile analyses.
They were classified by glucose tolerance on the basis of blood glucose levels according to ADA diagnostic criteria for T2DM (2017).
Carbohydrate intolerance was defined as a 2-hOGTT glucose level ≥7.8 mmol l-1 (mg dl-1).
Body composition, visceral adipose tissue, anthropometry study, OGTT-based parameters and cardiovascular risk factors are measured.
Type d'étude
Observationnel
Inscription (Réel)
853
Critères de participation
Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.
Critère d'éligibilité
Âges éligibles pour étudier
18 ans à 70 ans (Adulte, Adulte plus âgé)
Accepte les volontaires sains
N/A
Sexes éligibles pour l'étude
Tout
Méthode d'échantillonnage
Échantillon de probabilité
Population étudiée
Subjects aged 18-70 years, who attended the Department of Endocrinology and Nutrition of the Clínica Universidad de Navarra from 2009-2014 for a check-up were offered to participate in the DICAMANO study
La description
Inclusion Criteria:
- Fasting glucose level ≤ 5.5 mmol l-1
- BMI ≥ 25
Exclusion Criteria:
- Type 2 diabetes mellitus
- Severe renal, liver or thyroid dysfunction
Plan d'étude
Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.
Comment l'étude est-elle conçue ?
Détails de conception
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Body fat percentage and carbohydrate intolerance
Délai: Baseline
|
Investigate whether body fat percentage estimated by air-displacement plethysmography (Bod-Pod®, Life Measurements, Concord, CA, USA) predicts postprandial carbohydrate intolerance early on in the metabolic dysregulation process. Body fat percentage (BF%) is calculated from body density by means of the Siri equation. |
Baseline
|
|
Neck circumference as screening tool
Délai: Baseline
|
Examine the predictive value of neck circumference as screening tool for the selection of patients who are most likely to benefit from an oral glucose tolerance test (OGTT)
|
Baseline
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Waist-to-hip ratio as screening tool
Délai: Baseline
|
Examine the predictive value of waist-to-hip ratio as screening tool for the selection of patients who are most likely to benefit from an oral glucose tolerance test (OGTT).
Waist-to-hip ratio was calculated as waist circumference divided by hip circumference.
Waist circumference was measured at the midpoint between the iliac crest and the rib cage on the mid-axillary line, and hip circumference at the level of the greater trochanters was measured to the nearest millimetre using a flexible tape.
|
Baseline
|
|
Waist-to-height ratio as screening tool
Délai: Baseline
|
Examine the predictive value of waist-to-height ratio as screening tool for the selection of patients who are most likely to benefit from an oral glucose tolerance test (OGTT).
Waist-to-height ratio was calculated as waist circumference divided by height.
|
Baseline
|
|
BMI as screening tool
Délai: Baseline
|
Examine the predictive value of body adiposity index (BMI) as screening tool for the selection of patients who are most likely to benefit from an oral glucose tolerance test (OGTT).
BMI was calculated as weight in kilograms divided by height in meters squared.
|
Baseline
|
|
Body adiposity index as screening tool
Délai: Baseline
|
Examine the predictive value of body adiposity index (BAI) ([hip circumference/height1.5]-18)
as screening tool for the selection of patients who are most likely to benefit from an oral glucose tolerance test (OGTT).
|
Baseline
|
|
Central fat depot and carbohydrate intolerance
Délai: Baseline
|
Investigate whether central fat depot predicts postprandial carbohydrate intolerance early on in the metabolic dysregulation process.
Visceral and abdominal adiposity was quantified by the use of the abdominal bioelectrical impedance analysis device ViScan (Tanita AB-140, Tanita Corp., Tokyo, Japan).
|
Baseline
|
|
Central fat depot and cardiometabolic risk
Délai: Baseline
|
Investigate whether a higher central fat depot is able to identify those individuals with higher inflammatory parameters (c-reactive protein, homocysteine and uric acid) and cardiovascular risk (higher rate of hypercholesterolemia, hypertension and/or obstructive sleep apnea). Body fat percentage (BF%) is calculated from body density by means of the Siri equation. |
Baseline
|
|
Body fat percentage and cardiometabolic risk
Délai: Baseline
|
Investigate whether a higher body fat percentage is able to identify those individuals with higher inflammatory parameters (c-reactive protein, homocysteine and uric acid) and cardiovascular risk (higher rate of hypercholesterolemia, hypertension and/or obstructive sleep apnea). Body fat percentage (BF%) is calculated from body density by means of the Siri equation. |
Baseline
|
|
Prevalence of postprandial carbohydrate intolerance
Délai: Baseline
|
Assess the prevalence of postprandial carbohydrate intolerance in individuals with normal fasting glycaemia
|
Baseline
|
|
Oral glucose tolerance test parameters and cardiometabolic profile
Délai: Baseline
|
Verification of the utility of the two-hour OGTT glucose value to select those individuals with higher cardiometabolic risk (higher rate of hypercholesterolemia, hypertension and/or obstructive sleep apnea).
|
Baseline
|
|
Non-alcoholic fatty liver disease (NAFLD) and glucose dysregulation
Délai: Baseline
|
Analyse the association between NAFLD and OGTT-based ß-cell function and insulin resistance in non-diabetic subjects.
|
Baseline
|
|
OGTT-based indices as screening tool of NAFLD
Délai: Baseline
|
Examine whether OGTT-based ß-cell function and insulin resistance indices could be used as screening tools for the selection of patients who are most likely to benefit from a NAFLD-study.
|
Baseline
|
|
OGTT-derived glucose curve as screening tool of NAFLD
Délai: Baseline
|
Examine whether the glucose response curve could be used as screening tool for the selection of patients who are most likely to benefit from a NAFLD-study.
|
Baseline
|
Collaborateurs et enquêteurs
C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.
Collaborateurs
Les enquêteurs
- Chaise d'étude: Gema Frühbeck, PhD, Clinica Universidad de Navarra
- Chercheur principal: Belén Pérez Pevida, MD, Clinica Universidad de Navarra
Publications et liens utiles
La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.
Dates d'enregistrement des études
Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.
Dates principales de l'étude
Début de l'étude (Réel)
29 janvier 2009
Achèvement primaire (Réel)
28 août 2014
Achèvement de l'étude (Réel)
28 janvier 2016
Dates d'inscription aux études
Première soumission
6 février 2018
Première soumission répondant aux critères de contrôle qualité
23 avril 2018
Première publication (Réel)
24 avril 2018
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
25 avril 2018
Dernière mise à jour soumise répondant aux critères de contrôle qualité
24 avril 2018
Dernière vérification
1 février 2018
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 167/2016
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Non
Étudie un produit d'appareil réglementé par la FDA américaine
Non
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