Treatment of Insulin Resistance in Hypertensive, Obese Adolescents

NCT00185705 | Terminated

• 1 other identifier: Telmisartan adolescents
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

In this study, we propose using telmisartan, an angiotensin II receptor antagonist with PPAR-gamma modulating activity, for a 12-week period to decrease blood pressure and insulin levels in obese, hypertensive children. Telmisartan is currently approved for treatment of adult hypertension. Recent adult studies, however, have shown telmisartan as an effective medication for lowering insulin levels and improving insulin sensitivity. We will enroll 30 obese adolescents, ages 10 to 18 years, and randomly assign half of the group to receive telmisartan and the other half to receive placebo (sugar-pill). We will obtain fasting glucose and insulin levels, as well as other markers for insulin sensitivity and cholesterol panel, at the beginning of the study, at each clinic visit in 4-week intervals, and at the end of the study. We will obtain an imaging study (computed tomography, CT scan) on 10 randomly selected study patients (5 from each group) to examine the distribution of fat tissue before and after treatment. Studies suggest that fat tissue in the subcutaneous tissue is less harmful that fat tissues surrounding internal organs, such as the liver. We will also provide nutritional handouts and exercise recommendations to each participant as a life-style intervention. Each participant will be given a diary to record his or her diet and exercise activities throughout the study.

Conditions

Hypertension; Insulin Resistance; Dyslipidemia

Keywords

Insulin resistance; obesity; hypertension; adolescents; telmisartan; lifestyle intervention

Outcome Measures

Primary Outcomes (1)

• This pilot study will provide data essential for designing a larger trial to test the hypothesis that telmisartan treatment of obese children with insulin resistance and hypertension will result in improved insulin levels and systolic blood pressure.

Secondary Outcomes (1)

• Secondary outcome measures will include the effects of telmisartan on total cholesterol, triglyceride, HDL and LDL levels, body mass index (BMI), and body fat distribution.

Interventions

Telmisartan DRUG

Eligibility Criteria

• Age: 10 Years - 18 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Ages between 10.00 and 17.99 years
• Body mass index (BMI) ≥ 95th percentile for age and gender using the CDC data
• SBP ≥ 95th percentile for age, gender, and height using the fourth report from the National High Blood Pressure Education Program (NHBPEP) guidelines.
• Fasting plasma insulin concentration ≥ 20 U/mL will be required for study entry. This insulin concentration is commonly used for defining insulin resistance.

You may not qualify if:

• Subjects will be excluded from the study if they have known diabetes as defined by the American Diabetes Association criteria, prior drug therapy to treat diabetes or insulin resistance, recent glucocorticoid therapy within 3 months of the screening visit, current drug therapy to treat hypertension, elevated creatinine (\> 1.2mg/dL), elevated liver enzymes (ALT \> 80), history or current alcohol ingestion, existing pregnancy or high-risk of becoming pregnant, other serious medical condition that the investigator determines may put the subject at undue risk if enrolled in the study, or taking medications with potential drug-drug interactions (anticoagulant, digoxin, diuretics).

Sponsors & Collaborators

• Stanford University: lead

Study Sites (1)

Stanford Medical Center

Stanford, California, 94305-5401, United States

Location

Related Publications (16)

• Berenson GS. Childhood risk factors predict adult risk associated with subclinical cardiovascular disease. The Bogalusa Heart Study. Am J Cardiol. 2002 Nov 21;90(10C):3L-7L. doi: 10.1016/s0002-9149(02)02953-3.

  PMID: 12459418 BACKGROUND

• Duncan GE, Li SM, Zhou XH. Prevalence and trends of a metabolic syndrome phenotype among u.s. Adolescents, 1999-2000. Diabetes Care. 2004 Oct;27(10):2438-43. doi: 10.2337/diacare.27.10.2438.

  PMID: 15451913 BACKGROUND

• de Ferranti SD, Gauvreau K, Ludwig DS, Neufeld EJ, Newburger JW, Rifai N. Prevalence of the metabolic syndrome in American adolescents: findings from the Third National Health and Nutrition Examination Survey. Circulation. 2004 Oct 19;110(16):2494-7. doi: 10.1161/01.CIR.0000145117.40114.C7. Epub 2004 Oct 11.

  PMID: 15477412 BACKGROUND

• Ferrannini E, Haffner SM, Mitchell BD, Stern MP. Hyperinsulinaemia: the key feature of a cardiovascular and metabolic syndrome. Diabetologia. 1991 Jun;34(6):416-22. doi: 10.1007/BF00403180.

  PMID: 1884900 BACKGROUND

• Freedman DS, Khan LK, Dietz WH, Srinivasan SR, Berenson GS. Relationship of childhood obesity to coronary heart disease risk factors in adulthood: the Bogalusa Heart Study. Pediatrics. 2001 Sep;108(3):712-8. doi: 10.1542/peds.108.3.712.

  PMID: 11533341 BACKGROUND

• Hardin DS, Hebert JD, Bayden T, Dehart M, Mazur L. Treatment of childhood syndrome X. Pediatrics. 1997 Aug;100(2):E5. doi: 10.1542/peds.100.2.e5.

  PMID: 9233976 BACKGROUND

• Kaplan F, Al-Majali K, Betteridge DJ. PPARS, insulin resistance and type 2 diabetes. J Cardiovasc Risk. 2001 Aug;8(4):211-7. doi: 10.1177/174182670100800405.

  PMID: 11550999 BACKGROUND

• Kurtz TW, Pravenec M. Antidiabetic mechanisms of angiotensin-converting enzyme inhibitors and angiotensin II receptor antagonists: beyond the renin-angiotensin system. J Hypertens. 2004 Dec;22(12):2253-61. doi: 10.1097/00004872-200412000-00003.

  PMID: 15614015 BACKGROUND

• Owens S, Gutin B, Barbeau P, Litaker M, Allison J, Humphries M, Okuyama T, Le NA. Visceral adipose tissue and markers of the insulin resistance syndrome in obese black and white teenagers. Obes Res. 2000 Jul;8(4):287-93. doi: 10.1038/oby.2000.34.

  PMID: 10933304 BACKGROUND

• Sinaiko AR, Steinberger J, Moran A, Prineas RJ, Jacobs DR Jr. Relation of insulin resistance to blood pressure in childhood. J Hypertens. 2002 Mar;20(3):509-17. doi: 10.1097/00004872-200203000-00027.

  PMID: 11875319 BACKGROUND

• Sorof JM, Lai D, Turner J, Poffenbarger T, Portman RJ. Overweight, ethnicity, and the prevalence of hypertension in school-aged children. Pediatrics. 2004 Mar;113(3 Pt 1):475-82. doi: 10.1542/peds.113.3.475.

  PMID: 14993537 BACKGROUND

• Steinberger J, Daniels SR; American Heart Association Atherosclerosis, Hypertension, and Obesity in the Young Committee (Council on Cardiovascular Disease in the Young); American Heart Association Diabetes Committee (Council on Nutrition, Physical Activity, and Metabolism). Obesity, insulin resistance, diabetes, and cardiovascular risk in children: an American Heart Association scientific statement from the Atherosclerosis, Hypertension, and Obesity in the Young Committee (Council on Cardiovascular Disease in the Young) and the Diabetes Committee (Council on Nutrition, Physical Activity, and Metabolism). Circulation. 2003 Mar 18;107(10):1448-53. doi: 10.1161/01.cir.0000060923.07573.f2. No abstract available.

  PMID: 12642369 BACKGROUND

• Teo K, Yusuf S, Sleight P, Anderson C, Mookadam F, Ramos B, Hilbrich L, Pogue J, Schumacher H; ONTARGET/TRANSCEND Investigators. Rationale, design, and baseline characteristics of 2 large, simple, randomized trials evaluating telmisartan, ramipril, and their combination in high-risk patients: the Ongoing Telmisartan Alone and in Combination with Ramipril Global Endpoint Trial/Telmisartan Randomized Assessment Study in ACE Intolerant Subjects with Cardiovascular Disease (ONTARGET/TRANSCEND) trials. Am Heart J. 2004 Jul;148(1):52-61. doi: 10.1016/j.ahj.2004.03.020.

  PMID: 15215792 BACKGROUND

• Yamagishi S, Takeuchi M. Telmisartan is a promising cardiometabolic sartan due to its unique PPAR-gamma-inducing property. Med Hypotheses. 2005;64(3):476-8. doi: 10.1016/j.mehy.2004.09.015.

  PMID: 15617852 BACKGROUND

• Benson SC, Pershadsingh HA, Ho CI, Chittiboyina A, Desai P, Pravenec M, Qi N, Wang J, Avery MA, Kurtz TW. Identification of telmisartan as a unique angiotensin II receptor antagonist with selective PPARgamma-modulating activity. Hypertension. 2004 May;43(5):993-1002. doi: 10.1161/01.HYP.0000123072.34629.57. Epub 2004 Mar 8.

  PMID: 15007034 BACKGROUND

• Derosa G, Ragonesi PD, Mugellini A, Ciccarelli L, Fogari R. Effects of telmisartan compared with eprosartan on blood pressure control, glucose metabolism and lipid profile in hypertensive, type 2 diabetic patients: a randomized, double-blind, placebo-controlled 12-month study. Hypertens Res. 2004 Jul;27(7):457-64. doi: 10.1291/hypres.27.457.

  PMID: 15302981 BACKGROUND

MeSH Terms

Conditions

Hypertension; Insulin Resistance; Dyslipidemias; Obesity

Interventions

Telmisartan

Condition Hierarchy (Ancestors)

Vascular Diseases; Cardiovascular Diseases; Hyperinsulinism; Glucose Metabolism Disorders; Metabolic Diseases; Nutritional and Metabolic Diseases; Lipid Metabolism Disorders; Overweight; Overnutrition; Nutrition Disorders; Body Weight; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Biphenyl Compounds; Benzene Derivatives; Hydrocarbons, Aromatic; Hydrocarbons, Cyclic; Hydrocarbons; Organic Chemicals; Benzimidazoles; Heterocyclic Compounds, 2-Ring; Heterocyclic Compounds, Fused-Ring; Heterocyclic Compounds

Study Officials

• Carolyn H Chi, MD

  Stanford Medical Center

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principle Investigator

Study Record Dates

• First Submitted: September 9, 2005
• First Posted: September 16, 2005
• Study Start: October 1, 2006
• Primary Completion: July 1, 2007
• Study Completion: July 1, 2007
• Last Updated: March 18, 2020

Record last verified: 2020-03

Locations

US (1)