Official Title: “Clinical Protocol For A Double-Blind, Randomized, Active- Controlled Comparison Study Of The Antihypertensive Effect Of Eplerenone Versus Losartan In Patients With Mild To Moderate Hypertension”

The purpose this study is to compare the efficacy of eplereonone and losartan in patients with mild to moderate hypertension.

Study Type: Interventional

Study Design: Treatment, Randomized, Double Blind (Subject, Investigator), Parallel Assignment, Safety/Efficacy Study

Intervention(s) in this Clinical Trial

• Drug: eplerenone
  • Eplerenone 50 mg oral film-coated tablet once daily for 8 weeks. If blood pressure was uncontrolled (DBP ≥ 90 mmHg) at Week 4, the dose was increased to eplerenone 100 mg oral film-coated tablet once daily for 4 weeks.
• Drug: Losartan
  • Losartan 50 mg oral capsule once daily for 8 weeks. If blood pressure was uncontrolled (DBP ≥ 90 mmHg) at Week 4, the dose was increased to losartan 100 mg oral capsule once daily for 4 weeks

Arms, Groups and Cohorts in this Clinical Trial

• Experimental: Eplerenone group
• Active Comparator: Losartan group

Primary Measures

• Mean change from baseline in seated trough cuff diastolic blood pressure (seDBP) at Week 8
  • Time Frame: 8 weeks
    Safety Issue?: No

Secondary Measures

• Mean change from baseline in seated cuff systolic blood pressure (seSBP) at Week 8
  • Time Frame: 8 weeks
    Safety Issue?: No
• Percent of patients meeting the goal BP of DBP <90 mmHg or a reduction of ≥10 mmHg in DBP
  • Time Frame: 8 weeks
    Safety Issue?: No
• Overall safety and tolerability of all treatments as assessed by change in vital signs, 12-lead electrocardiograms, clinical laboratory tests, and adverse events
  • Time Frame: 8 weeks
    Safety Issue?: Yes

Inclusion Criteria:

• History of mild to moderate hypertension, or newly diagnosed hypertension, defined as seDBP ≥90 mmHg and <110 mmHg and seSBP <180 mmHg
• Withdrawal of all previous antihypertensives prior to the single-blind placebo run-in period and the double-blind treatment period

Exclusion Criteria:

• Secondary hypertension (e.g., renal, renovascular, or adrenocortical disease, pheochromocytoma, Cushing's syndrome, primary aldosteronism, iatrogenic), severe hypertension, or malignant hypertension
• The patient cannot withdraw from antihypertensives by any route including diuretics, alpha-blockers, betablockers, calcium channel blockers, ACE-I, ARB, or other medications affecting blood pressure; patients who have stable angina and have not had their nitrate dosage changed within the past three months (i.e., on a stable maintenance dose) are eligible for this study; sildenafil citrate, theophylline, or papaverine must not be taken within 24 hours prior to a clinic visit

Gender Eligibility for this Clinical Trial: Both

Minimum Age for this Clinical Trial: 18 Years

Maximum Age for this Clinical Trial: N/A

Are Healthy Volunteers Accepted for this Clinical Trial?: No

Lead Sponsor: Pfizer

Overall Clinical Trial Officials and Contacts

Pfizer CT.gov Call Center Study Director Pfizer  

Information obtained from ClinicalTrials.gov on November 20, 2008

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00649311

Study ID Number: EPLA-0501-072

ClinicalTrials.gov Identifier: NCT00649311

Health Authority: Taiwan: Department of Health

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