A Randomized, Double-Blind, Active Control Trial Comparing Effects of Telmisartan, Candesartan and Amlodipine, Alone or Plus Metformin, on Non-Diabetic, Obese Hypertensive Patients

NCT ID: NCT00538486

Last Updated: 2013-05-14

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

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

360 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-02-29

Study Completion Date

2009-06-30

Brief Summary

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The epidemic of obesity is associated with a considerable rise in the incidence of the metabolic syndrome, type 2 diabetes mellitus, and hypertension. Insulin resistance plays an important role in the pathogenesis of obesity related hypertension. These patients are at high risk to suffer from cardiovascular events. However, current guidelines for treatment of hypertension do not provide specific recommendation for the pharmacotherapy of obese hypertensive patients due to lack of prospective randomized intervention studies in non-diabetic obese hypertensive patients.

Aside from their antihypertensive effects, angiotensin II receptor blockers (ARB) were shown to improve insulin sensitivity. Furthermore, metformin is commonly used to treat the obese type 2 diabetes mellitus. Metformin can also lower body weight and increase insulin sensitivity. In a prospective, double-blind, double-dummy, randomized, parallel-group study, we will evaluate the effects of ARB (telmisartan and candesartan) or amlodipine combination with metformin on weight gain, visceral fat, and metabolic parameters in obese hypertensive patients without diabetes mellitus compared with obese hypertensives on ARB or amlodipine treatment alone. This study will help to develop future comprehensive treatment strategies and guidelines for obesity related hypertension.

Detailed Description

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Conditions

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Hypertension Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Group T

Telmisartan

Group Type EXPERIMENTAL

Telmisartan

Intervention Type DRUG

Telmisartan 80mg 1/d

Group T+M

Telmisartan plus Metformin

Group Type EXPERIMENTAL

Telmisartan plus Metformin

Intervention Type DRUG

Telmisartan 80mg 1/d, Metformin 250mg 2/d

Group C

Candesartan

Group Type EXPERIMENTAL

Candesartan

Intervention Type DRUG

Candesartan 8mg daily

Group C+M

Candesartan pus Metformin

Group Type EXPERIMENTAL

Candesartan plus Metformin

Intervention Type DRUG

Candesartan 8mg 1/d Metformin 250mg 2/d

Group A

Amlodipine

Group Type ACTIVE_COMPARATOR

Amlodipine

Intervention Type DRUG

Amlodipine 5mg 1/d

Group A+M

Amlodipine plus Metformin

Group Type EXPERIMENTAL

Amlodipine plus Metformin

Intervention Type DRUG

Amlodipine 5mg 1/d, Metformin 250mg 2/d

Interventions

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Telmisartan plus Metformin

Telmisartan 80mg 1/d, Metformin 250mg 2/d

Intervention Type DRUG

Telmisartan

Telmisartan 80mg 1/d

Intervention Type DRUG

Candesartan

Candesartan 8mg daily

Intervention Type DRUG

Candesartan plus Metformin

Candesartan 8mg 1/d Metformin 250mg 2/d

Intervention Type DRUG

Amlodipine

Amlodipine 5mg 1/d

Intervention Type DRUG

Amlodipine plus Metformin

Amlodipine 5mg 1/d, Metformin 250mg 2/d

Intervention Type DRUG

Other Intervention Names

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Telmisartan Alone Candesartan Alone Amlodipine alone

Eligibility Criteria

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Inclusion Criteria

* Grade 1 or 2 hypertension: 140mmHg≤SBP\<180mmHg, and/or 90mmHg≤DBP\<110mmHg
* Waist circumference higher than 90cm in men, 80cm in women

Exclusion Criteria

* Diabetes
* Grade 3 hypertension: SBP≥180mmHg, or DBP≥110mmHg
* known allergy or hypersensitivity to trial drugs
* Myocardial infarction or cerebrovascular accident in the year preceding the trial
* Clinical Congestive Heart Failure
* History of hepatitis or cirrhosis
* History of kidney disease
Minimum Eligible Age

30 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Third Military Medical University

OTHER

Sponsor Role lead

Responsible Party

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Zhiming Zhu

Director of Dept. of Hypertension & Endocrinology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Zhiming Zhu, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

The third hospital affiliated to the Third Military Medical University. China

Zhiming Zhu, MD, PhD

Role: STUDY_DIRECTOR

The third hospital affiliated to the Third Military Medical University. China

Locations

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The third hospital affiliated to the Third Military Medical University

Chongqing, , China

Site Status

Countries

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China

References

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He H, Zhao Z, Chen J, Ni Y, Zhong J, Yan Z, Li Y, Liu D, Pletcher MJ, Zhu Z. Metformin-based treatment for obesity-related hypertension: a randomized, double-blind, placebo-controlled trial. J Hypertens. 2012 Jul;30(7):1430-9. doi: 10.1097/HJH.0b013e328353e249.

Reference Type RESULT
PMID: 22525206 (View on PubMed)

Other Identifiers

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HOT-ACME 1

Identifier Type: -

Identifier Source: org_study_id

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