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Bioequivalence Study Of Verapamil

This study has been completed.
Information provided by:
Pfizer Identifier:
First received: April 25, 2008
Last updated: July 7, 2009
Last verified: July 2009
The purpose of this study is to demonstrate bioequivalence of single doses of two verapamil formulations

Condition Intervention Phase
Healthy Volunteers
Drug: verapamil
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Bioequivalence Study Of Verapamil (Covera HS) 240 Mg Extended Release Tablets Produced By Alza Corporation, Vacaville And Pfizer Inc, Puerto Rico: A Two Sequence, Four-Way Crossover Design, Single Dose, Open-Label, Randomized Study In Healthy Volunteers

Resource links provided by NLM:

Further study details as provided by Pfizer:

Primary Outcome Measures:
  • Primary study endpoints will be AUClast, AUCinf and Cmax of R- and S-verapamil. [ Time Frame: 5 months ]

Secondary Outcome Measures:
  • Secondary endpoints will include Tmax and t1/2 of R- and S-verapamil and S- and R- norverapamil, as data permit. AUClast, AUCinf and Cmax of R- and S-norverapamil as data permit. [ Time Frame: 5 months ]
  • Safety and tolerability as assessed by reported adverse events, safety lab test and vital signs [ Time Frame: 5 months ]

Enrollment: 79
Study Start Date: February 2008
Study Completion Date: July 2008
Primary Completion Date: July 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
marketed extended release verapamil tablet
Drug: verapamil
240 mg extended release tablets once daily at bedtime for 28 days
Other Name: Covera HS
reformulated extended release verapamil tablet
Drug: verapamil
240 mg extended release tablets once daily at bedtime for 28 days
Other Name: Covera HS


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

Inclusion Criteria:

  • Healthy male and/or female subjects
  • Mass Index (BMI) of approximately 18 to 30 kg/m2

Exclusion Criteria:

  • Any condition possibly affecting drug absorption
  • A positive urine drug screen
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00668967

United States, Connecticut
Pfizer Investigational Site
New Haven, Connecticut, United States, 06511
Sponsors and Collaborators
Study Director: Pfizer Call Center Pfizer
  More Information

Additional Information:
Responsible Party: Director, Clinical Trial Disclosure Group, Pfizer, Inc. Identifier: NCT00668967     History of Changes
Other Study ID Numbers: A6661003
Study First Received: April 25, 2008
Last Updated: July 7, 2009

Keywords provided by Pfizer:
Cardiovascular Diseases

Additional relevant MeSH terms:
Anti-Arrhythmia Agents
Calcium Channel Blockers
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Vasodilator Agents processed this record on May 25, 2017