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Hormonal Regulation of Body Weight Maintenance

12 gennaio 2018 aggiornato da: 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.

Panoramica dello studio

Tipo di studio

Interventistico

Iscrizione (Effettivo)

286

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

      • Berlin, Germania, 12200
        • Charité

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 10 anni a 90 anni (Bambino, Adulto, Adulto più anziano)

Accetta volontari sani

Sessi ammissibili allo studio

Tutto

Descrizione

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

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore placebo: placebo
Placebo
nessun intervento, solo follow-up
Sperimentale: 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

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
BMI will be assessed during lifestyle intervention in (1) children and adolescents and (2) adults vs. placebo
Lasso di tempo: 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

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Evaluation of leptin during lifestyle intervention
Lasso di tempo: 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
Lasso di tempo: 48 months
Measurement of leptin during follow up until the 48 months
48 months
Evaluation of catecholamines during follow up
Lasso di tempo: 48 months
Measurement of catecholamines during follow up until the 48 months
48 months
Evaluation of catecholamines during lifestyle intervention
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 48 months
Measurement of cortisol during follow up until the 48 months
48 months
Evaluation of glucagon-like peptide 1 (GLP1) during lifestyle intervention
Lasso di tempo: 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
Lasso di tempo: 48 months
Measurement of GLP1 during follow up until the 48 months
48 months
Evaluation of glucose-dependent insulinotropic polypeptide (GIP) during lifestyle intervention
Lasso di tempo: 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
Lasso di tempo: 48 months
Measurement of GIP during follow up until the 48 months
48 months
Evaluation of thyroid hormones during lifestyle intervention
Lasso di tempo: 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
Lasso di tempo: 48 months
Measurement of thyroid hormones during follow up until the 48 months
48 months
Evaluation of insulin during lifestyle intervention
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 48 months
Measurement of IGF1 during follow up until the 48 months
48 months
Evaluation of natriuretic peptide during lifestyle intervention
Lasso di tempo: 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
Lasso di tempo: 48 months
Measurement of natriuretic peptide during follow up until the 48 months
48 months
Evaluation of blood pressure during lifestyle intervention
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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)
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: month -3, month 0
Analysis of acylcarnitines at baseline and after 3 months of weight loss
month -3, month 0
changes acylcarnitines
Lasso di tempo: 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
Lasso di tempo: 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

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Pubblicazioni generali

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

1 gennaio 2010

Completamento primario (Effettivo)

1 dicembre 2015

Completamento dello studio (Effettivo)

1 gennaio 2016

Date di iscrizione allo studio

Primo inviato

17 febbraio 2009

Primo inviato che soddisfa i criteri di controllo qualità

24 febbraio 2009

Primo Inserito (Stima)

25 febbraio 2009

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

17 gennaio 2018

Ultimo aggiornamento inviato che soddisfa i criteri QC

12 gennaio 2018

Ultimo verificato

1 gennaio 2018

Maggiori informazioni

Termini relativi a questo studio

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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