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Hormonal Regulation of Body Weight Maintenance

12 janvier 2018 mis à jour par: Professor Joachim Spranger, Charite University, Berlin, Germany
The investigators here propose to perform a collaborative clinical research effort including a randomized controlled trial investigating the mechanisms of weight maintenance and their relation to a lifestyle intervention in children, adolescents and adults. The detailed investigation and analysis of the variability and dynamics of the endocrine circuits responding to a negative energy balance and weight loss will be accompanied and enhanced by specific clinical projects targeting peripheral and central-nervous aspects of hormonal counter-regulation after weight loss. Mechanisms of endocrine counter-regulation and potential therapeutic approaches will be studied.

Aperçu de l'étude

Type d'étude

Interventionnel

Inscription (Réel)

286

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

      • Berlin, Allemagne, 12200
        • Charité

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

10 ans à 90 ans (Enfant, Adulte, Adulte plus âgé)

Accepte les volontaires sains

Oui

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • BMI > 27 kg/m2 (adults)

Exclusion Criteria:

  • weight loss of more than 5kg in the last 2 months
  • pregnancy, breastfeeding
  • patients with:

    • severe heart failure
    • impaired hepatic or renal function
    • anaemia
    • disturbed coagulation (biopsies will not be taken in those subjects)
    • infection, malabsorption
    • severe hypertension
    • cancer within the last 5 years
    • eating disorders or any other psychiatric condition that would interact with the trial intervention
    • any other endocrine disorder
  • changes of smoking habits or diets within the last 3 months prior to study inclusion

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

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur placebo: placebo
Placebo
aucune intervention, seulement un suivi
Expérimental: lifestyle intervention
After an initial weight loss, the weight regain will be measured during multimodal lifestyle intervention in children, adolescents and adults
After an initial weight loss, the weight regain will be measured during multimodal lifestyle intervention in children, adolescents and adults

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
BMI will be assessed during lifestyle intervention in (1) children and adolescents and (2) adults vs. placebo
Délai: 21 months
BMI (kg/m2) will be analyzed after intentional weight loss in two comparable parts of a randomized controlled trial including (1) children and adolescents and (2) adults. Therefore effects of a multimodal lifestyle intervention will be compared to placebo.
21 months

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Evaluation of leptin during lifestyle intervention
Délai: month -3, month 0, month 12, month 18
Measurement of leptin at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and after additional 6 months follow up
month -3, month 0, month 12, month 18
Evaluation of leptin during follow up
Délai: 48 months
Measurement of leptin during follow up until the 48 months
48 months
Evaluation of catecholamines during follow up
Délai: 48 months
Measurement of catecholamines during follow up until the 48 months
48 months
Evaluation of catecholamines during lifestyle intervention
Délai: month -3, month 0, month 12, month 18
Measurement of catecholamines at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and after additional 6 months follow up
month -3, month 0, month 12, month 18
Evaluation of cortisol during lifestyle intervention
Délai: month -3, month 0, month 12, month 18
Measurement of cortisol at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and after additional 6 months follow up
month -3, month 0, month 12, month 18
Evaluation of cortisol during follow up
Délai: 48 months
Measurement of cortisol during follow up until the 48 months
48 months
Evaluation of glucagon-like peptide 1 (GLP1) during lifestyle intervention
Délai: month -3, month 0, month 12, month 18
Measurement of GLP1 at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and after additional 6 months follow up
month -3, month 0, month 12, month 18
Evaluation of GLP1 during follow up
Délai: 48 months
Measurement of GLP1 during follow up until the 48 months
48 months
Evaluation of glucose-dependent insulinotropic polypeptide (GIP) during lifestyle intervention
Délai: month -3, month 0, month 12, month 18
Measurement of GIP at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and after additional 6 months follow up
month -3, month 0, month 12, month 18
Evaluation of GIP during follow up
Délai: 48 months
Measurement of GIP during follow up until the 48 months
48 months
Evaluation of thyroid hormones during lifestyle intervention
Délai: month -3, month 0, month 12, month 18
Measurement of thyroid hormones at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and after additional 6 months follow up
month -3, month 0, month 12, month 18
Evaluation of thyroid hormones during follow up
Délai: 48 months
Measurement of thyroid hormones during follow up until the 48 months
48 months
Evaluation of insulin during lifestyle intervention
Délai: month -3, month 0, month 12, month 18
Measurement of insulin at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and after additional 6 months follow up
month -3, month 0, month 12, month 18
Evaluation of insulin during follow up
Délai: 48 months
Measurement of insulin during follow up until the 48 months
48 months
Evaluation of insulin-like growth factor 1 (IGF1) during lifestyle intervention
Délai: month -3, month 0, month 12, month 18
Measurement of IGF1 at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and after additional 6 months follow up
month -3, month 0, month 12, month 18
Evaluation of IGF1 during follow up
Délai: 48 months
Measurement of IGF1 during follow up until the 48 months
48 months
Evaluation of natriuretic peptide during lifestyle intervention
Délai: month -3, month 0, month 12, month 18
Measurement of natriuretic peptide at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and after additional 6 months follow up
month -3, month 0, month 12, month 18
Evaluation of natriuretic peptide during follow up
Délai: 48 months
Measurement of natriuretic peptide during follow up until the 48 months
48 months
Evaluation of blood pressure during lifestyle intervention
Délai: month -3, month 0, month 12, month 18, month 24, month 36, month 48
Measurement of blood pressure at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and and after additional 36 months follow up
month -3, month 0, month 12, month 18, month 24, month 36, month 48
Evaluation of free fatty acids (FFAs) during lifestyle intervention
Délai: month -3, month 0, month 12, month 18, month 24, month 36, month 48
Measurement of FFAs at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and and after additional 36 months follow up
month -3, month 0, month 12, month 18, month 24, month 36, month 48
Evaluation of respiratory coefficient during lifestyle intervention
Délai: month -3, month 0, month 12, month 18, month 24, month 36, month 48
Measurement of respiratory coefficient at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and and after additional 36 months follow up
month -3, month 0, month 12, month 18, month 24, month 36, month 48
Measurement of messenger ribonucleic acid (mRNA) changes in adipose and skeletal muscle before (T-3), after weight loss (T0) and after as well as after 12 months randomized lifestyle intervention (or placebo)
Délai: month -3, month 0, month 12
Measurement of systemic and tissue specific changes in adipose tissue and skeletal muscle using RNA sequencing (counts)
month -3, month 0, month 12
Measurement of insulin sensitivity
Délai: month -3, month 0, month 12
Measurement of systemic and tissue specific changes in adipose and muscle insulin sensitivity using hyperinsulinemic clamp (mg•kg-1•min-1/(mU•L-1)) before (T-3), after weight loss (T0) and after as well as after 12 months randomized lifestyle intervention (or placebo)
month -3, month 0, month 12
Prediction of body weight regain
Délai: month 18, month 48
No additional measurement will be done. However, we will analyse the predictive impact of already measured parameters on long-term course of BMI (18 and 48 months) using mathematical models
month 18, month 48
Prediction of insulin sensitivity
Délai: month 18, month 48
No additional measurement will be done. However, we will analyse the predictive impact of already measured parameters on insulin sensitivity (18 and 48 months) using mathematical models
month 18, month 48
Prediction of energy expenditure
Délai: month 18, month 48
No additional measurement will be done. However, we will analyse the predictive impact of already measured parameters on energy expenditure (18 and 48 months) using mathematical models
month 18, month 48
Prediction of muscle mass
Délai: month 18, month 48
No additional measurement will be done. However, we will analyse the predictive impact of already measured parameters on muscle mass (18 and 48 months) using mathematical models
month 18, month 48
Prediction of fat mass
Délai: month 18, month 48
No additional measurement will be done. However, we will analyse the predictive impact of already measured parameters on fat mass (18 and 48 months) using mathematical models
month 18, month 48
BMI course after a lifestyle intervention in (1) children and adolescents and (2) adults vs. placebo
Délai: month 24, month 36, month 48
BMI (kg/m2) after the randomized control trial (RCT) (18 months) will be analyzed up to 48 months.
month 24, month 36, month 48
changes of fatty acids during the intervention
Délai: month -3, month 0, month 12, month 18, month 24, month 36, month 48
Analysis of fatty acids at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and and after additional 36 months follow up
month -3, month 0, month 12, month 18, month 24, month 36, month 48
changes acylcarnitines
Délai: month -3, month 0
Analysis of acylcarnitines at baseline and after 3 months of weight loss
month -3, month 0
changes acylcarnitines
Délai: month 12, month 18, month 24, month 36, month 48
Analysis of acylcarnitines after 12 months randomized lifestyle intervention (or placebo) and and after additional 36 months follow up
month 12, month 18, month 24, month 36, month 48
body composition
Délai: month -3, month 0, month 12, month 18, month 24, month 36, month 48
Whole body fat mass (kg, %) will be measured at baseline, after 3 months of weight loss, as well as after 12 months randomized lifestyle intervention (or placebo) and and after additional 36 months follow up
month -3, month 0, month 12, month 18, month 24, month 36, month 48

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

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.

Publications générales

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)

1 janvier 2010

Achèvement primaire (Réel)

1 décembre 2015

Achèvement de l'étude (Réel)

1 janvier 2016

Dates d'inscription aux études

Première soumission

17 février 2009

Première soumission répondant aux critères de contrôle qualité

24 février 2009

Première publication (Estimation)

25 février 2009

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

17 janvier 2018

Dernière mise à jour soumise répondant aux critères de contrôle qualité

12 janvier 2018

Dernière vérification

1 janvier 2018

Plus d'information

Termes liés à cette étude

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