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Effects Of Eplerenone On Serum Aldesterone And Plasma Renin Activity

This study has been completed.
Information provided by:
Pfizer Identifier:
First received: October 5, 2009
Last updated: February 16, 2011
Last verified: February 2011
To evaluate the changes in serum aldosterone and plasma renin activity on Day 0 and on Days 1 and 10 after administration of 100 mg of eplerenone daily for 10 days.

Condition Intervention Phase
Healthy Volunteers Drug: Eplerenone or Placebo Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Double (Participant, Investigator)
Official Title: A Phase 1, Double-Blind (Sponsor Open), Randomized, Placebo-Controlled Trial To Evaluate The Effects Of 100 MG Once Daily Of Eplerenone On Serum Aldesterone And Plasma Renin Activity During 10 Days Of Dosing In Healthy Volunteers

Resource links provided by NLM:

Further study details as provided by Pfizer:

Primary Outcome Measures:
  • Area under the effect curve (AUEC) for serum aldosterone and PRA on Day 0 and on Days 1 and 10 after administration of 100 mg of eplerenone [ Time Frame: 11 days ]

Secondary Outcome Measures:
  • Single Dose PK for eplerenone: Cmax, Tmax, and AUCtau; Multiple Dose PK for eplerenone: Cmax(ss), Tmax(ss), AUC(,tau,ss), half life, Cmin(ss), Cave(ss), accumulation ratios AUC(tau,ss)/AUC(tau,sd) and Cmax(ss)/Cmax(sd). [ Time Frame: 13 days ]
  • Safety and tolerability of eplerenone as determined by adverse event reporting, clinical laboratory results, vital signs (supine blood pressure and heart rate), physical examinations and ECGs. [ Time Frame: 13 days ]
  • Change from baseline (Day 0) to Day 8 in exploratory mRNA gene expression biomarkers (SGK1: Serum/glucocorticoid regulated kinase 1 gene, ENaCα: Epithelial Sodium Channel alpha subunit, ENaCγ: Epithelial Sodium Channel gamma subunit, [ Time Frame: 9 days ]
  • MR: Mineralcorticoid Receptor, ACTβ: Beta Actin) after administration of eplerenone or placebo. These results will not be included in the study report. [ Time Frame: 9 days ]

Enrollment: 20
Study Start Date: October 2009
Study Completion Date: November 2009
Primary Completion Date: November 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Cohort 1
Healthy Volunteers - eplerenone versus placebo.
Drug: Eplerenone or Placebo
Eplerenone 100 mg or Placebo, daily for 10 days.


Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Body Mass Index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lbs)
  • Subjects who are willing and able to comply with scheduled visits, treatment plan, laboratory tests, and other study procedures.

Exclusion Criteria:

  • Evidence or history of clinically significant disease
  • Subjects with a supine BP greater than or equal to 140 mm Hg systolic or greater than or equal to 90 mm Hg diastolic or <100 mm Hg systolic and <60 mm Hg diastolic on a single measurement, as described in the protocol
  • Blood donation of approximately 1 pint (500 mL) within 56 days prior to dosing
  • History of sensitivity to eplerenone, spironolactone or related compounds.
  • Serum potassium >5.0 mEq/L at screening or Day 0
  Contacts and Locations
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Please refer to this study by its identifier: NCT00990223

United States, Florida
Pfizer Investigational Site
Miami, Florida, United States, 33143
Pfizer Investigational Site
South Miami, Florida, United States, 33143
Sponsors and Collaborators
Study Director: Pfizer Call Center Pfizer
  More Information

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Director, Clinical Trial Disclosure Group, Pfizer, Inc. Identifier: NCT00990223     History of Changes
Other Study ID Numbers: A6141115
Study First Received: October 5, 2009
Last Updated: February 16, 2011

Keywords provided by Pfizer:
Eplerenone Aldosterone and Plasma Renin Activity responses Pharmacodynamics

Additional relevant MeSH terms:
Mineralocorticoid Receptor Antagonists
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Diuretics, Potassium Sparing
Natriuretic Agents processed this record on September 21, 2017