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Dysfunctional Adiposity and Glucose Impairment (DICAMANO)

24 de abril de 2018 atualizado por: 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.

Visão geral do estudo

Descrição detalhada

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.

Tipo de estudo

Observacional

Inscrição (Real)

853

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos a 70 anos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

N/D

Gêneros Elegíveis para o Estudo

Tudo

Método de amostragem

Amostra de Probabilidade

População do estudo

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

Descrição

Inclusion Criteria:

  • Fasting glucose level ≤ 5.5 mmol l-1
  • BMI ≥ 25

Exclusion Criteria:

  • Type 2 diabetes mellitus
  • Severe renal, liver or thyroid dysfunction

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Body fat percentage and carbohydrate intolerance
Prazo: 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
Prazo: 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

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Waist-to-hip ratio as screening tool
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: Baseline
Assess the prevalence of postprandial carbohydrate intolerance in individuals with normal fasting glycaemia
Baseline
Oral glucose tolerance test parameters and cardiometabolic profile
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Investigadores

  • Cadeira de estudo: Gema Frühbeck, PhD, Clinica Universidad de Navarra
  • Investigador principal: Belén Pérez Pevida, MD, Clinica Universidad de Navarra

Publicações e links úteis

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Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

29 de janeiro de 2009

Conclusão Primária (Real)

28 de agosto de 2014

Conclusão do estudo (Real)

28 de janeiro de 2016

Datas de inscrição no estudo

Enviado pela primeira vez

6 de fevereiro de 2018

Enviado pela primeira vez que atendeu aos critérios de CQ

23 de abril de 2018

Primeira postagem (Real)

24 de abril de 2018

Atualizações de registro de estudo

Última Atualização Postada (Real)

25 de abril de 2018

Última atualização enviada que atendeu aos critérios de controle de qualidade

24 de abril de 2018

Última verificação

1 de fevereiro de 2018

Mais Informações

Termos relacionados a este estudo

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

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