Sibutramine-metformin Combination Versus Sibutramine and Metformin Monotherapy in Obese Patients

NCT ID: NCT00941382

Last Updated: 2009-07-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE3

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-11-30

Study Completion Date

2009-09-30

Brief Summary

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The aim of this study is to evaluate the effect of sibutramine and metformin combination therapy in comparison with sibutramine or metformin monotherapy over weight, adiposity, glucose metabolism and inflammatory state in obese patients.

Detailed Description

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The treatment of obesity is strongly recommended because it exacerbates insulin resistance, hypertension, dyslipidemia and atherosclerosis, and represents a risk factor for type 2 diabetes. Although diet and exercise are valuable in this treatment, patient compliance is a major problem. Sibutramine has been shown to be a highly effective pharmacotherapy for weigh loss in obese patients, mediated by increased satiety and an enhancement of energy expenditure. Metformin is widely used for glycemia control and is associated with a small to moderate body weight loss. We are assessing the combination of sibutramine and metformin, two agents with different mechanisms of action for control of body weight and metabolic dysregulation.

Conditions

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Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Sibutramin-Metformin

Sibutramine-metformin therapy in a single tablet

Group Type EXPERIMENTAL

Sibutramine-Metformin

Intervention Type DRUG

sibutramine and metformin, 15 mg per day and 850 mg per day, respectively, in a single tablet, for 180 days

Sibutramine

Sibutramine monotherapy

Group Type ACTIVE_COMPARATOR

Sibutramine

Intervention Type DRUG

15 mg per day for 180 days

Metformin

Metformin monotherapy

Group Type ACTIVE_COMPARATOR

Metformin

Intervention Type DRUG

Metformin 850 mg per day for 180 days

Interventions

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Metformin

Metformin 850 mg per day for 180 days

Intervention Type DRUG

Sibutramine-Metformin

sibutramine and metformin, 15 mg per day and 850 mg per day, respectively, in a single tablet, for 180 days

Intervention Type DRUG

Sibutramine

15 mg per day for 180 days

Intervention Type DRUG

Other Intervention Names

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combination therapy Sibutramine monohidrate Hydrochloride Metformin Hydrochloride

Eligibility Criteria

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Inclusion Criteria

* Age between 30 and 50 years
* Both genders
* BMI between 30 and 40
* Stable body weigh defined by over 5 per cent variability during the previous 3 months
* Fasting serum glucose less than 126 mg per dl
* Blood pressure over 140 and 90 mmHg
* Women ensuring contraceptive precautions.
* Communication and understanding capability.
* Informed consent awarding.

Exclusion Criteria

* Women were excluded if they were pregnant or lactating potential while no taking adequate contraceptive precautions
* Any smoking during the preceding 6 months
* No physical activity, defined by less than 15 minutes per day of walking
* Excessive physical activity equivalent to running over 60 minutes per day
* Known hypersensitivity to sibutramine or metformin
* Low commitment to follow the protocol statements
* Any investigational medication during the preceding 6 months
* Any drug or substance mayor toxicity exposure during the preceding 3 months
* Alcohol or any drug abuse during the previous 3 months
* Current medication of oral corticosteroids, anticoagulants, sympathomimetics, sympatholytics, lipid lowering drugs, any medication for type 2 diabetes, and any sibutramine interaction drug
* Current or previous evidence of ischemic heart disease, cardiac arrhythmia, cerebrovascular disease, chronic hepatic disease, two fold persistent elevation of ALT, AST or FA
* Carrying a pacemaker or any permanent bioelectronic component that could interfere with bioimpedance process
* Renal failure defined by serum creatinine equal or ever 1.2 mg per dL
* Not controlled thyroid disease defined by altered serum T3, T4 and TSH during the previous 3 months
* Hypertension
* Type 2 diabetes
* Anti-depressants, or any psychiatric disturbance treatment
Minimum Eligible Age

30 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Laboratorios Silanes S.A. de C.V.

INDUSTRY

Sponsor Role lead

Responsible Party

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Laboratorios Silanes S.A. de C.V.

Principal Investigators

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Jorge A González-Canudas, MD

Role: STUDY_DIRECTOR

Laboratorios Silanes

Manuel González-Ortiz, PHD

Role: STUDY_CHAIR

University of Guadalajara

ESperanza Martínez-Abundis, PHD

Role: PRINCIPAL_INVESTIGATOR

University of Guadalajara

Locations

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Centro Universitario de Ciencias de la Salud

Guadalajara, Jalisco, Mexico

Site Status

Countries

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Mexico

References

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Cachofeiro V. Obesidad, Inflamación y disfunción endotelial. Rev Esp Obes 4: 194-204, 2006.

Reference Type BACKGROUND

Ferrannini E, Mari A. How to measure insulin sensitivity. J Hypertens. 1998 Jul;16(7):895-906. doi: 10.1097/00004872-199816070-00001.

Reference Type BACKGROUND
PMID: 9794728 (View on PubMed)

Lyle WG; Plastic Surgery Educational Foundation DATA Committee. Pharmacological treatment of obesity. Plast Reconstr Surg. 2002 Nov;110(6):1577-80. doi: 10.1097/01.PRS.0000028331.84171.86. No abstract available.

Reference Type BACKGROUND
PMID: 12409783 (View on PubMed)

Luque CA, Rey JA. The discovery and status of sibutramine as an anti-obesity drug. Eur J Pharmacol. 2002 Apr 12;440(2-3):119-28. doi: 10.1016/s0014-2999(02)01423-1.

Reference Type BACKGROUND
PMID: 12007530 (View on PubMed)

Weigle DS. Pharmacological therapy of obesity: past, present, and future. J Clin Endocrinol Metab. 2003 Jun;88(6):2462-9. doi: 10.1210/jc.2003-030151. No abstract available.

Reference Type BACKGROUND
PMID: 12788841 (View on PubMed)

Hundal RS, Inzucchi SE. Metformin: new understandings, new uses. Drugs. 2003;63(18):1879-94. doi: 10.2165/00003495-200363180-00001.

Reference Type BACKGROUND
PMID: 12930161 (View on PubMed)

Bloomgarden ZT. Metformin. Diabetes Care. 1995 Jul;18(7):1078-80. doi: 10.2337/diacare.18.7.1078. No abstract available.

Reference Type BACKGROUND
PMID: 7555549 (View on PubMed)

Campbell I. The obesity epidemic: can we turn the tide? Heart. 2003 May;89 Suppl 2(Suppl 2):ii22-4; discussion ii35-7. doi: 10.1136/heart.89.suppl_2.ii22.

Reference Type BACKGROUND
PMID: 12695431 (View on PubMed)

McNulty SJ, Ur E, Williams G; Multicenter Sibutramine Study Group. A randomized trial of sibutramine in the management of obese type 2 diabetic patients treated with metformin. Diabetes Care. 2003 Jan;26(1):125-31. doi: 10.2337/diacare.26.1.125.

Reference Type BACKGROUND
PMID: 12502668 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 18492523 (View on PubMed)

Gonzalez-Ortiz M, Martinez-Abundis E, Mora-Martinez JM, Grover-Paez F. Renal handling of uric acid assessed by means of pharmacological tests in obese women. Diabetes Nutr Metab. 2001 Aug;14(4):189-94.

Reference Type BACKGROUND
PMID: 11716287 (View on PubMed)

Clement K, Ferre P. Genetics and the pathophysiology of obesity. Pediatr Res. 2003 May;53(5):721-5. doi: 10.1203/01.PDR.0000059753.61905.58. Epub 2003 Mar 5.

Reference Type BACKGROUND
PMID: 12621112 (View on PubMed)

Flegal KM, Carroll MD, Ogden CL, Johnson CL. Prevalence and trends in obesity among US adults, 1999-2000. JAMA. 2002 Oct 9;288(14):1723-7. doi: 10.1001/jama.288.14.1723.

Reference Type BACKGROUND
PMID: 12365955 (View on PubMed)

Lozano Castañeda O. Adipocitoquinas. Rev Endocr Nutr. 10: 147-50, 2002.

Reference Type BACKGROUND

Karnehed N, Rasmussen F, Hemmingsson T, Tynelius P. Obesity and attained education: cohort study of more than 700,000 Swedish men. Obesity (Silver Spring). 2006 Aug;14(8):1421-8. doi: 10.1038/oby.2006.161.

Reference Type BACKGROUND
PMID: 16988085 (View on PubMed)

Hensrud DD, Klein S. Extreme obesity: a new medical crisis in the United States. Mayo Clin Proc. 2006 Oct;81(10 Suppl):S5-10. doi: 10.1016/s0025-6196(11)61175-0.

Reference Type BACKGROUND
PMID: 17036573 (View on PubMed)

Other Identifiers

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OB Sil-02

Identifier Type: -

Identifier Source: org_study_id

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