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- Ensayo clínico NCT01487993
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
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
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 estudio
Inscripción (Actual)
Fase
- Fase 3
Contactos y Ubicaciones
Ubicaciones de estudio
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's Hertogenbosch, Países Bajos
- Jeroen Bosch Hospital
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Nieuwegein, Países Bajos, 3430EM
- St. Antonius Hospital
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
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.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Triple
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
|
Comparador activo: 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.
Otros nombres:
Lifestyle intervention: 18 months physical therapy and dietary advice
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Comparador de placebos: 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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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Change in BMI from baseline
Periodo de tiempo: 18 months and 36 months
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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
Periodo de tiempo: 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
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Renal and hepatic function
Periodo de tiempo: 3; 6; 9; 12; 15; 18; 24; 30 and 36 months
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creatinine and alat
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3; 6; 9; 12; 15; 18; 24; 30 and 36 months
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Tolerability
Periodo de tiempo: 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)
Periodo de tiempo: 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
Periodo de tiempo: 0, 9, 18 and 36 months
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0, 9, 18 and 36 months
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Physical fitness
Periodo de tiempo: 0, 9, 18 and 36 months
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0, 9, 18 and 36 months
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Quality of life
Periodo de tiempo: 0, 9, 18 and 36 months
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0, 9, 18 and 36 months
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Long term efficacy
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 36 months
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Measured as micro-albuminuria
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36 months
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Macrovascular complications
Periodo de tiempo: 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
Periodo de tiempo: 36 months
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36 months
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PK-parameters: volume of distribution (liters)
Periodo de tiempo: 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
Publicaciones y enlaces útiles
Publicaciones Generales
- 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.
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- Metformin 2011-6
- 2010-023980-17 (Número EudraCT)
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .
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