A Study of the Effects of Eplerenone and Amlodipine on Blood Pressure and Basal Metabolic Rate in Obese Hypertensives

NCT ID: NCT00825188

Last Updated: 2018-05-29

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

TERMINATED

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-01-31

Study Completion Date

2014-03-31

Brief Summary

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Obesity and hypertension are independent risks for congestive heart failure (CHF) and chronic kidney disease. In obesity induced hypertension, the most common cause of human essential hypertension, the potential importance of mineralocorticoid receptor blockade has not been widely investigated. We propose to test the hypothesis that eplerenone reduces metabolic demand, improves cardiac function and attenuates glomerular hyperfiltration and microalbuminuria in obese patients. Our specific aims are to assess changes in basal metabolic rate, cardiac and renal function in obese hypertensive subjects treated with eplerenone compared to amlodipine.

Detailed Description

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The proposed trial will utilize an open label study design. Patients with hypertension and obesity will be recruited. After a 3-week washout period for patients currently on antihypertensive medication, eligible participants will be assigned to receive 25 mg of eplerenone or 5 mg of amlodipine. After a 4 week period on medication, drug will be advanced to 50 mg of eplerenone or 10 mg of amlodipine for an additional 4 weeks.

Protocol Synopsis:

1. Recruit 20 study participants with a systolic blood pressure (SBP) between 140 and 160 mmHg and/or a diastolic blood pressure between 90 and 100 mmHg who also have a body mass index \> 30-45. If participants are on antihypertensive treatment, they will undergo a 3-week washout period. The study participants will be identified in the Division of Hypertension.
2. Assign study participants to receive 25 mg of eplerenone or 5 mg of amlodipine per day for 4 weeks. Up-titration to eplerenone 50 mg and amlodipine 10 mg for an additional 4 weeks.
3. Obtain basal metabolic rate, cardiac output and other indices of cardiac performance, cognitive abilities, and rating of depression and anxiety symptoms at baseline and after 8 weeks of treatment.
4. Obtain blood pressure measures at all visits.
5. Obtain mood ratings at all visits.
6. Compare basal metabolic rate, cardiac output and other indices of cardiac performance between treatment groups.
7. Compare difference in SBP and DBP between treatment groups.
8. Compare differences in plasma insulin, serum electrolytes, plasma renin activity, cortisol and aldosterone concentrations, urinary albumin excretion, and glomerular filtration rate between treatment groups.
9. Compare mood rating as well as symptoms of depression and anxiety between treatment groups.

Conditions

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Obesity Hypertension

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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eplerenone

Group Type ACTIVE_COMPARATOR

eplerenone, amlodipine

Intervention Type DRUG

Eplerenone 25mm qd versus amlodipine 5mg qd x 4weeks the Eplerenone 50mg qd versus amlodipine 10mg qd x 4weeks

eplerenone

Intervention Type DRUG

Eplerenone 25-50mg daily x 8 weeks

eplerenone

Intervention Type DRUG

eplerenone 25- 50 mg daily for 8 weeks

amlodipine

Intervention Type DRUG

amlodipine 5-10mg daily for 8 weeks

amlodipine

Amlodipine 5-10mg daily times 8 weeks

Group Type ACTIVE_COMPARATOR

eplerenone, amlodipine

Intervention Type DRUG

Eplerenone 25mm qd versus amlodipine 5mg qd x 4weeks the Eplerenone 50mg qd versus amlodipine 10mg qd x 4weeks

eplerenone

Intervention Type DRUG

eplerenone 25- 50 mg daily for 8 weeks

amlodipine

Intervention Type DRUG

amlodipine 5-10mg daily for 8 weeks

Interventions

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eplerenone, amlodipine

Eplerenone 25mm qd versus amlodipine 5mg qd x 4weeks the Eplerenone 50mg qd versus amlodipine 10mg qd x 4weeks

Intervention Type DRUG

eplerenone

Eplerenone 25-50mg daily x 8 weeks

Intervention Type DRUG

eplerenone

eplerenone 25- 50 mg daily for 8 weeks

Intervention Type DRUG

amlodipine

amlodipine 5-10mg daily for 8 weeks

Intervention Type DRUG

Other Intervention Names

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Inspra Norvasc Inspra Inspra Norvasc Norvasc

Eligibility Criteria

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Inclusion Criteria

* Systolic blood pressure (SBP) between 140 and 160 mmHg and/or a diastolic blood pressure between 90 and 100 mmHg who also have a body mass index \> 30-45.
* Women must be post menopausal

Exclusion Criteria

* Women of child bearing potential
* BMI less than 30 or greater than 45
* A creatinine \> 1.8 for females and \> 2.0 for males
* Type 1 or type 2 diabetes
* Current evidence of alcohol or drug abuse problems
Minimum Eligible Age

21 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Mississippi Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Marion Wofford

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Marion Wofford, MD

Role: PRINCIPAL_INVESTIGATOR

University of Mississippi Medical Center

Locations

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The University of Mississippi Clinical Research Program

Jackson, Mississippi, United States

Site Status

Countries

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United States

Other Identifiers

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2008-0035

Identifier Type: -

Identifier Source: org_study_id

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