Adipokines in Obese Adolescents With Insulin Resistance
23 de abril de 2012 actualizado por: Maria Lola Evia-Viscarra, Hospital Regional de Alta Especialidad del Bajio
Inflammatory Mediators in Obese Adolescents With Insulin Resistance Following Metformin Treatment: Controlled Randomized Clinical Trial
The purpose of this study is to compare serum concentrations of inflammatory cytokines, interleukin 6 (IL-6), High-sensitivity C-reactive protein (hs-CRP), adiponectin, and tumour necrosis factor alpha (TNFα), before and after three months treatment with metformin in obese adolescents with insulin resistance (IR).
Descripción general del estudio
Descripción detallada
The increased prevalence of obesity in pediatric patients is a public health problem particularly because of the difficulties involved with changing lifestyles. Current studies of obese children and adolescents show increased insulin resistance (IR) and chronic inflammatory states. These conditions increase the risk of disability and/or premature death.
The current treatment schemes for obese children are conservative and are focused on changing their lifestyles (exercise and dietary plans). However, metabolic conditions, such as IR, dyslipidemia, and inflammatory processes, are perpetuated.
Metformin is a biguanide that is used for adolescents with diabetes mellitus and polycystic ovarian syndrome. Several clinical trials with metformin for obese pediatric patients have observed decreases in IR, decreases in weight, and improvements in lipid metabolism.
Adipose tissue is not only an energy repository, but also plays an immunological role by the secretion of cytokines. Both overweight adults and adolescents show decreases in adiponectin levels and increases in tumor necrosis factor alpha (TNFα) and interleukin 6 (IL-6). IL-6 can stimulate the production of high-sensitivity C-reactive protein (hs-CRP), which is considered to be a risk marker for the development of cardiovascular disease.
Tipo de estudio
Intervencionista
Inscripción (Actual)
31
Fase
- Fase 4
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Ubicaciones de estudio
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Distrito Federal
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México, Distrito Federal, México, 06720
- Hospital Infantil de Mexico Federico Gomez
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Guanajuato
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León, Guanajuato, México, 37670
- Hospital Regional de Alta Especialidad del Bajio
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Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
9 años a 18 años (Niño, Adulto)
Acepta Voluntarios Saludables
No
Géneros elegibles para el estudio
Todos
Descripción
Inclusion Criteria:
- Obesity defined as Body Mass Index (BMI) ≥ percentile 95
- Tanner stage ≥ 2
- Insulin resistance defined as Basal insulin > 15 µU/mL or Homeostasis Model Assessment index (HOMA) > 4.5
- Patients' parents signed written consents when they and their adolescent children agreed to enroll
Exclusion Criteria:
- Glucose intolerance
- Diabetes mellitus (type 1 or 2)
- Anemia (Hb < 10 g/dL)
- Plasma creatinine > 1.4 mg/dL
- Abnormal hepatic function
- Any associated Disease (Pulmonary, Infection, Autoimmune Disease)
- History of lactic acidosis
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Cuadruplicar
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Experimental: Metformin
Tablet of 500 mg metformin, oral every 12 hours (total metformin dose of 1 g/day) for 3 months.
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Tablet of 500 mg metformin, oral every 12 hours (total metformin dose of 1 g/day) for 3 months.
Otros nombres:
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Comparador de placebos: Placebo
Tablet of 500 mg oral placebo every 12 hours for 3 months.
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Tablet of 500 mg oral placebo every 12 hours for 3 months.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Adiponectin
Periodo de tiempo: baseline and 3 months
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Change from baseline in Adiponectin after 3 months of treatment.
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baseline and 3 months
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High-sensitivity C-reactive Protein
Periodo de tiempo: baseline and 3 months
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Change from baseline in High-sensitivity C-reactive protein after 3 months of treatment.
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baseline and 3 months
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Interleukin 6
Periodo de tiempo: baseline and 3 months
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Change from baseline in Interleukin 6 after 3 months of treatment.
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baseline and 3 months
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Tumour Necrosis Factor Alpha
Periodo de tiempo: baseline and 3 months
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Change from baseline in Tumour necrosis factor alpha after 3 months of treatment.
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baseline and 3 months
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Fasting Plasma Glucose
Periodo de tiempo: baseline and 3 months
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Change from baseline in Fasting plasma glucose after 3 months of treatment.
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baseline and 3 months
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Fasting Insulin
Periodo de tiempo: baseline and 3 months
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Change from baseline in Fasting insulin after 3 months of treatment.
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baseline and 3 months
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Body Mass Index
Periodo de tiempo: baseline and 3 months
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Change from baseline in Body Mass Index after 3 months of treatment.
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baseline and 3 months
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Waist Circumference
Periodo de tiempo: baseline and 3 months
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Change from baseline in Waist circumference after 3 months of treatment.
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baseline and 3 months
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Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Maria L Evia-Viscarra, M.D., Hospital Regional de Alta Especialidad del Bajio
- Silla de estudio: Edel R Rodea-Montero, Statistician, Hospital Regional de Alta Especialidad del Bajio
- Silla de estudio: Evelia Apolinar-Jiménez, Nutrition, Hospital Regional de Alta Especialidad del Bajio
- Silla de estudio: Leticia M García-Morales, M.D., Hospital Infantil de Mexico Federico Gomez
- Silla de estudio: Constanza Leaños-Pérez, M.D., Hospital Infantil de Mexico Federico Gomez
- Silla de estudio: Mireya Figueroa-Barrón, Chemestry, Hospital Infantil de Mexico Federico Gomez
- Silla de estudio: Dolores Sánchez-Fierros, Chemestry, Hospital Infantil de Mexico Federico Gomez
- Silla de estudio: Nathalie Muñoz-Noriega, Nutrition, Hospital Regional de Alta Especialidad del Bajio
- Silla de estudio: Juan G Reyes-García, M.D., Escuela Superior de Medicina del IPN
Publicaciones y enlaces útiles
La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.
Publicaciones Generales
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- Freedman DS, Mei Z, Srinivasan SR, Berenson GS, Dietz WH. Cardiovascular risk factors and excess adiposity among overweight children and adolescents: the Bogalusa Heart Study. J Pediatr. 2007 Jan;150(1):12-17.e2. doi: 10.1016/j.jpeds.2006.08.042.
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- Centers for Disease Control and Prevention (CDC). CDC grand rounds: childhood obesity in the United States. MMWR Morb Mortal Wkly Rep. 2011 Jan 21;60(2):42-6. Erratum In: MMWR Morb Mortal Wkly Rep. 2011 Feb 11;60(5):142.
- Wilfley DE, Tibbs TL, Van Buren DJ, Reach KP, Walker MS, Epstein LH. Lifestyle interventions in the treatment of childhood overweight: a meta-analytic review of randomized controlled trials. Health Psychol. 2007 Sep;26(5):521-32. doi: 10.1037/0278-6133.26.5.521.
- Zeller M, Kirk S, Claytor R, Khoury P, Grieme J, Santangelo M, Daniels S. Predictors of attrition from a pediatric weight management program. J Pediatr. 2004 Apr;144(4):466-70. doi: 10.1016/j.jpeds.2003.12.031.
- Ten S, Maclaren N. Insulin resistance syndrome in children. J Clin Endocrinol Metab. 2004 Jun;89(6):2526-39. doi: 10.1210/jc.2004-0276.
- Chiarelli F, Marcovecchio ML. Insulin resistance and obesity in childhood. Eur J Endocrinol. 2008 Dec;159 Suppl 1:S67-74. doi: 10.1530/EJE-08-0245. Epub 2008 Sep 19.
- Cruz ML, Weigensberg MJ, Huang TT, Ball G, Shaibi GQ, Goran MI. The metabolic syndrome in overweight Hispanic youth and the role of insulin sensitivity. J Clin Endocrinol Metab. 2004 Jan;89(1):108-13. doi: 10.1210/jc.2003-031188.
- Visser M, Bouter LM, McQuillan GM, Wener MH, Harris TB. Low-grade systemic inflammation in overweight children. Pediatrics. 2001 Jan;107(1):E13. doi: 10.1542/peds.107.1.e13.
- Beauloye V, Zech F, Tran HT, Clapuyt P, Maes M, Brichard SM. Determinants of early atherosclerosis in obese children and adolescents. J Clin Endocrinol Metab. 2007 Aug;92(8):3025-32. doi: 10.1210/jc.2007-0619. Epub 2007 May 22.
- Type 2 diabetes in children and adolescents. American Diabetes Association. Pediatrics. 2000 Mar;105(3 Pt 1):671-80. doi: 10.1542/peds.105.3.671. No abstract available.
- SEARCH for Diabetes in Youth Study Group, Liese AD, D'Agostino RB Jr, Hamman RF, Kilgo PD, Lawrence JM, Liu LL, Loots B, Linder B, Marcovina S, Rodriguez B, Standiford D, Williams DE. The burden of diabetes mellitus among US youth: prevalence estimates from the SEARCH for Diabetes in Youth Study. Pediatrics. 2006 Oct;118(4):1510-8. doi: 10.1542/peds.2006-0690.
- Kay JP, Alemzadeh R, Langley G, D'Angelo L, Smith P, Holshouser S. Beneficial effects of metformin in normoglycemic morbidly obese adolescents. Metabolism. 2001 Dec;50(12):1457-61. doi: 10.1053/meta.2001.28078.
- Love-Osborne K, Sheeder J, Zeitler P. Addition of metformin to a lifestyle modification program in adolescents with insulin resistance. J Pediatr. 2008 Jun;152(6):817-22. doi: 10.1016/j.jpeds.2008.01.018. Epub 2008 Mar 19.
- Srinivasan S, Ambler GR, Baur LA, Garnett SP, Tepsa M, Yap F, Ward GM, Cowell CT. Randomized, controlled trial of metformin for obesity and insulin resistance in children and adolescents: improvement in body composition and fasting insulin. J Clin Endocrinol Metab. 2006 Jun;91(6):2074-80. doi: 10.1210/jc.2006-0241. Epub 2006 Apr 4.
- Trayhurn P, Beattie JH. Physiological role of adipose tissue: white adipose tissue as an endocrine and secretory organ. Proc Nutr Soc. 2001 Aug;60(3):329-39. doi: 10.1079/pns200194.
- Stefan N, Bunt JC, Salbe AD, Funahashi T, Matsuzawa Y, Tataranni PA. Plasma adiponectin concentrations in children: relationships with obesity and insulinemia. J Clin Endocrinol Metab. 2002 Oct;87(10):4652-6. doi: 10.1210/jc.2002-020694.
- Weiss R, Dufour S, Groszmann A, Petersen K, Dziura J, Taksali SE, Shulman G, Caprio S. Low adiponectin levels in adolescent obesity: a marker of increased intramyocellular lipid accumulation. J Clin Endocrinol Metab. 2003 May;88(5):2014-8. doi: 10.1210/jc.2002-021711.
- Moon YS, Kim DH, Song DK. Serum tumor necrosis factor-alpha levels and components of the metabolic syndrome in obese adolescents. Metabolism. 2004 Jul;53(7):863-7. doi: 10.1016/j.metabol.2004.02.007.
- Herder C, Schneitler S, Rathmann W, Haastert B, Schneitler H, Winkler H, Bredahl R, Hahnloser E, Martin S. Low-grade inflammation, obesity, and insulin resistance in adolescents. J Clin Endocrinol Metab. 2007 Dec;92(12):4569-74. doi: 10.1210/jc.2007-0955. Epub 2007 Oct 2.
- Cartier A, Lemieux I, Almeras N, Tremblay A, Bergeron J, Despres JP. Visceral obesity and plasma glucose-insulin homeostasis: contributions of interleukin-6 and tumor necrosis factor-alpha in men. J Clin Endocrinol Metab. 2008 May;93(5):1931-8. doi: 10.1210/jc.2007-2191. Epub 2008 Mar 4.
- Ford ES, Galuska DA, Gillespie C, Will JC, Giles WH, Dietz WH. C-reactive protein and body mass index in children: findings from the Third National Health and Nutrition Examination Survey, 1988-1994. J Pediatr. 2001 Apr;138(4):486-92. doi: 10.1067/mpd.2001.112898.
- Hiura M, Kikuchi T, Nagasaki K, Uchiyama M. Elevation of serum C-reactive protein levels is associated with obesity in boys. Hypertens Res. 2003 Jul;26(7):541-6. doi: 10.1291/hypres.26.541.
- Freedman DS, Sherry B. The validity of BMI as an indicator of body fatness and risk among children. Pediatrics. 2009 Sep;124 Suppl 1:S23-34. doi: 10.1542/peds.2008-3586E.
- Cole TJ, Bellizzi MC, Flegal KM, Dietz WH. Establishing a standard definition for child overweight and obesity worldwide: international survey. BMJ. 2000 May 6;320(7244):1240-3. doi: 10.1136/bmj.320.7244.1240.
- Reaven GM, Chen YD, Hollenbeck CB, Sheu WH, Ostrega D, Polonsky KS. Plasma insulin, C-peptide, and proinsulin concentrations in obese and nonobese individuals with varying degrees of glucose tolerance. J Clin Endocrinol Metab. 1993 Jan;76(1):44-8. doi: 10.1210/jcem.76.1.8421101.
- Keskin M, Kurtoglu S, Kendirci M, Atabek ME, Yazici C. Homeostasis model assessment is more reliable than the fasting glucose/insulin ratio and quantitative insulin sensitivity check index for assessing insulin resistance among obese children and adolescents. Pediatrics. 2005 Apr;115(4):e500-3. doi: 10.1542/peds.2004-1921. Epub 2005 Mar 1.
- Weyer C, Funahashi T, Tanaka S, Hotta K, Matsuzawa Y, Pratley RE, Tataranni PA. Hypoadiponectinemia in obesity and type 2 diabetes: close association with insulin resistance and hyperinsulinemia. J Clin Endocrinol Metab. 2001 May;86(5):1930-5. doi: 10.1210/jcem.86.5.7463.
- Fruebis J, Tsao TS, Javorschi S, Ebbets-Reed D, Erickson MR, Yen FT, Bihain BE, Lodish HF. Proteolytic cleavage product of 30-kDa adipocyte complement-related protein increases fatty acid oxidation in muscle and causes weight loss in mice. Proc Natl Acad Sci U S A. 2001 Feb 13;98(4):2005-10. doi: 10.1073/pnas.98.4.2005. Epub 2001 Feb 6.
- Perea-Martinez A, Carbajal R.L, Rodriguez H.R, Zarco R.J, Barrios F.R, Loredo A.A, et al. Association of comorbidity with obesity in mexican children and adolescents. Pediatrics 2008;121(2):S149-S150
- Yeh ET. High-sensitivity C-reactive protein as a risk assessment tool for cardiovascular disease. Clin Cardiol. 2005 Sep;28(9):408-12. doi: 10.1002/clc.4960280905.
- Balagopal P, George D, Patton N, Yarandi H, Roberts WL, Bayne E, Gidding S. Lifestyle-only intervention attenuates the inflammatory state associated with obesity: a randomized controlled study in adolescents. J Pediatr. 2005 Mar;146(3):342-8. doi: 10.1016/j.jpeds.2004.11.033.
- Monzillo LU, Hamdy O, Horton ES, Ledbury S, Mullooly C, Jarema C, Porter S, Ovalle K, Moussa A, Mantzoros CS. Effect of lifestyle modification on adipokine levels in obese subjects with insulin resistance. Obes Res. 2003 Sep;11(9):1048-54. doi: 10.1038/oby.2003.144.
- Huang NL, Chiang SH, Hsueh CH, Liang YJ, Chen YJ, Lai LP. Metformin inhibits TNF-alpha-induced IkappaB kinase phosphorylation, IkappaB-alpha degradation and IL-6 production in endothelial cells through PI3K-dependent AMPK phosphorylation. Int J Cardiol. 2009 May 15;134(2):169-75. doi: 10.1016/j.ijcard.2008.04.010. Epub 2008 Jul 1.
- Evia-Viscarra ML, Rodea-Montero ER, Apolinar-Jimenez E, Munoz-Noriega N, Garcia-Morales LM, Leanos-Perez C, Figueroa-Barron M, Sanchez-Fierros D, Reyes-Garcia JG. The effects of metformin on inflammatory mediators in obese adolescents with insulin resistance: controlled randomized clinical trial. J Pediatr Endocrinol Metab. 2012;25(1-2):41-9. doi: 10.1515/jpem-2011-0469.
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio
1 de enero de 2007
Finalización primaria (Actual)
1 de diciembre de 2009
Finalización del estudio (Actual)
1 de marzo de 2010
Fechas de registro del estudio
Enviado por primera vez
4 de agosto de 2011
Primero enviado que cumplió con los criterios de control de calidad
4 de agosto de 2011
Publicado por primera vez (Estimar)
5 de agosto de 2011
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
27 de abril de 2012
Última actualización enviada que cumplió con los criterios de control de calidad
23 de abril de 2012
Última verificación
1 de abril de 2012
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 010-08
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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