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Metformin in Obese Children and Adolescents (MetVoorMin)
An Efficacy, Safety and Pharmacokinetic Study on the Short-term and Long-term Use of Metformin in Obese Children and Adolescents
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
The prevalence of obesity in children and adolescents is increasing rapidly and is associated with significant medical and psychosocial consequences persisting into adulthood.
Obesity may lead to metabolic complications, such as insulin resistance, which can progress via impaired fasted glucose and impaired glucose tolerance to type 2 diabetes mellitus (T2DM) and to the development of micro- and macro-vascular complications.
Metformin, an oral anti-diabetic licensed for T2DM for adults and children from 10 years onwards, is already used off label in obese children and adolescents with insulin resistance, even though the specific effects of metformin in these obese children and adolescents have not been elucidated, particularly upon long-term use.
The rationale for this study is based on the hypothesis that metformin may reduce body mass index (BMI), insulin resistance and percentage of body-fat in obese children and adolescents with insulin resistance. Further more it is anticipated that metformin may delay the progression to T2DM and thereby micro- and macro-vascular complications in obese children and adolescents with insulin resistance.
Tipo de estudo
Inscrição (Real)
Estágio
- Fase 3
Contactos e Locais
Locais de estudo
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's Hertogenbosch, Holanda
- Jeroen Bosch Hospital
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Nieuwegein, Holanda, 3430EM
- St. Antonius Hospital
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Age ≥ 10 and ≤ 16 years at study entry
- Caucasian descent
- Obesity defined as BMI-SDS > 2.3
- Insulin resistance defined as HOMA-IR ≥ 3.4.
- An obtained informed consent from subjects and parents/caregivers.
Exclusion Criteria:
- Presence of T2DM (American Diabetes Association criteria)
- Presence of endocrine disorders with steroid therapy
- Suspicion of polycystic ovarium syndrome;
- Height < -1.3 SD of target height;
- Syndrome disorders with or without mental retardation;
- Use of anti-hyperglycaemic drugs;
- Pregnancy (pregnancy test will be performed, if applicable);
- (History of) alcohol abuse;
- Impaired renal and/or hepatic function (defined as GFR < 80 ml/min. GFR=40 x length (cm) / serumcreatinin (μmol/l and ALAT >150% of normal value for age);
- Use of ritonavir; use of ACE inhibitors;
- Insufficient knowledge of the Dutch language.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Triplo
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
|
Comparador Ativo: Metformin
Metformin with lifestyle intervention during 18 months
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Oral administration, 500 mg daily at week 1.
Every week metformin dosage increases with 500 mg, to a maximum dose of 1000 mg bid.
This maximum dose will be administered till the end of the study.
Outros nomes:
Lifestyle intervention: 18 months physical therapy and dietary advice
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|
Comparador de Placebo: Placebo
Placebo and lifestyle intervention during 18 months
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Lifestyle intervention: 18 months physical therapy and dietary advice
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Change in BMI from baseline
Prazo: 18 months and 36 months
|
Change in BMI after part 1 (double blind) and part 2 ( follow-up)
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18 months and 36 months
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Change in Insulin resistance from baseline
Prazo: 3; 6; 9; 12; 15; 18; 24; 30 and 36 months
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calculated by the Homeostasis Model Assessment for Insulin Resistance (HOMA-IR).
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3; 6; 9; 12; 15; 18; 24; 30 and 36 months
|
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Renal and hepatic function
Prazo: 3; 6; 9; 12; 15; 18; 24; 30 and 36 months
|
creatinine and alat
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3; 6; 9; 12; 15; 18; 24; 30 and 36 months
|
|
Tolerability
Prazo: 3; 6; 9; 12; 15; 18; 24; 30 and 36 months
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The amount of reported adverse effects, in relation to the achieved dose level.
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3; 6; 9; 12; 15; 18; 24; 30 and 36 months
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|
Pharmacokinetics (PK)-parameters: clearance (ml/min)
Prazo: 9 months
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Clearance where applicable expressed per body weight, age category, Tanner Stage and gender, clearance will be determined with a two-compartment pharmacokinetic model using non linear mixed effect modelling.
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9 months
|
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Body fat percentage
Prazo: 0, 9, 18 and 36 months
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0, 9, 18 and 36 months
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|
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Physical fitness
Prazo: 0, 9, 18 and 36 months
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0, 9, 18 and 36 months
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|
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Quality of life
Prazo: 0, 9, 18 and 36 months
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0, 9, 18 and 36 months
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Long term efficacy
Prazo: 36 months
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Based on BMI and HOMA-IR values
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36 months
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Long-term safety
Prazo: 36 months
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Renal and hepatic function after 36 months of metformin use
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36 months
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Long-term tolerability
Prazo: 36 months
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The amount of adverse effects after 36 months
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36 months
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Microvascular complications
Prazo: 36 months
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Measured as micro-albuminuria
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36 months
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Macrovascular complications
Prazo: 36 monthts
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Measured with Pulse Wave Velocity and Augmentation Index.
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36 monthts
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Development of T2DM
Prazo: 36 months
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36 months
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PK-parameters: volume of distribution (liters)
Prazo: 9 months
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Volume of distribution, where applicable expressed per body weight, age category, Tanner Stage and gender, volume of distribution will be determined with a two-compartment pharmacokinetic model using non linear mixed effect modelling.
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9 months
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Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Marja MJ van der Vorst, MD, PhD, St. Antonius Hospital
Publicações e links úteis
Publicações Gerais
- van Rongen A, van der Aa MP, Matic M, van Schaik RHN, Deneer VHM, van der Vorst MM, Knibbe CAJ. Increased Metformin Clearance in Overweight and Obese Adolescents: A Pharmacokinetic Substudy of a Randomized Controlled Trial. Paediatr Drugs. 2018 Aug;20(4):365-374. doi: 10.1007/s40272-018-0293-1.
- van der Aa MP, Hoving V, van de Garde EM, de Boer A, Knibbe CA, van der Vorst MM. The Effect of Eighteen-Month Metformin Treatment in Obese Adolescents: Comparison of Results Obtained in Daily Practice with Results from a Clinical Trial. J Obes. 2016;2016:7852648. doi: 10.1155/2016/7852648. Epub 2016 Dec 22.
- van der Aa MP, Elst MA, van Mil EG, Knibbe CA, van der Vorst MM. METFORMIN: an efficacy, safety and pharmacokinetic study on the short-term and long-term use in obese children and adolescents - study protocol of a randomized controlled study. Trials. 2014 Jun 5;15:207. doi: 10.1186/1745-6215-15-207.
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- Metformin 2011-6
- 2010-023980-17 (Número EudraCT)
Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .
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