Study to Evaluate the Bioavailability of the Test Formulation of Amlodipine 10 mg Tablets (Torrent Pharmaceuticals Limited) Compared to a 10 mg Dose of Norvasc® (Pfizer) in 22 Fasted, Healthy Adult Subjects

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00932763
Recruitment Status : Completed
First Posted : July 3, 2009
Last Update Posted : July 17, 2009
Information provided by:
Torrent Pharmaceuticals Limited

Brief Summary:
  • Objective:

    • The objective of this study was to assess the relative bioavailability of two formulations of immediate release amlodipine 10 mg under fasted conditions, in healthy subjects.
  • Study Design:

    • This was an open-label, single-dose, 2-treatment, 2-period, randomized, crossover study.Twenty-two healthy subjects were enrolled. Subjects who successfully completed the screening process checked into the research center the night before first dose. Subjects who continued to meet inclusion/exclusion criteria the morning of dose were assigned a subject number, based on the order in which they successfully completed the screening process and procedures as outlined in the study protocol. Subjects were randomly assigned to a treatment sequence and received two separate single-dose administrations of study medication, one treatment per period,according to the randomization schedule. Dosing days were separated by a washout period of at least 14 days. Subjects received each of the treatments listed below during the two treatment periods following an overnight fast of at least 10 hours: amlodipine by Torrent Pharmaceuticals Ltd. and Norvasc by Pfizer, Inc.

Condition or disease Intervention/treatment Phase
Healthy Drug: Amlodipine besylate Drug: Norvasc Phase 1

Study Type : Interventional  (Clinical Trial)
Official Title: An Open-Label, Randomized, Two-Way Crossover, Single Dose Study to Evaluate the Bioavailability of the Test Formulation of Amlodipine 10 mg Tablets (Torrent Pharmaceuticals Limited, India) Compared to a 10 mg Dose of Norvasc® (Pfizer, USA) in 22 Fasted, Healthy Adult Subjects

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Intervention Details:
    Drug: Amlodipine besylate
    10 mg tablets (Torrent Pharmaceuticals, India)
    Drug: Norvasc
    10 mg dose (Pfizer, USA)

Primary Outcome Measures :
  1. Bioequivalence

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   All

Inclusion Criteria:

  • Sex: Male/Female
  • Age: 18 - 45 years.
  • Volunteer with BMI of 18-27 kg/m2 with minimum of 50 kg weight.
  • Volunteers with minimum blood pressure of 110/75 mmHg.
  • Healthy and willing to participate in the study.
  • Signed Written Informed Consent for Screening and study.
  • Medical case history, physical examination, vital signs, laboratory tests and ECG without significant deviations.
  • Negative drug of abuse screening test.
  • Non-smokers or smoking less than 10 cigarettes a day and willing to refrain from smoking throughout the course of the study.
  • No history of medication, prescription or OTC, for at least 2 weeks prior to study drug administration until study Period II completion.

Exclusion Criteria:

  • Clinically relevant abnormal physical findings at the screening examination, which would interfere with the objective of the study.
  • Clinically relevant abnormalities in the results of the laboratory screening evaluation.
  • Clinically relevant ECG abnormalities.
  • Habituation of tobacco necessitating uninterrupted tobacco consumption.
  • Addiction to alcohol or history of any drug abuse.
  • History of kidney or liver dysfunction.
  • History of allergy to the test drug or any drug chemically similar to the drug under investigation.
  • Administration/Intake of any prescription or OTC medication for two weeks before the study.
  • Patients suffering from any chronic illness such as arthritis, asthma etc.
  • HIV, HCV, HBsAg positive volunteers.
  • Positive test for drugs of abuse screen.
  • Subjects suffering from any psychiatric (acute or chronic) illness.
  • Administration of any investigational drug in the period 0 to 30 days before entry into the study.
  • Intake of barbiturates or any enzyme-inducing drug in last three months.
  • History of significant blood loss due to any reason, including blood donation in the past 12 weeks. The total blood loss in last 3 months including anticipated blood loss for this study will exceed 1000 ml.
  • History of any bleeding disorder.
  • Existence of any surgical or medical condition, which, in the judgement of the clinical investigator, might interfere with the absorption, distribution, metabolism or excretion of the drug or likely to compromise the safety of volunteers.
  • Serious adverse reaction or hypersensitivity to study drug or any of the excipients.
  • Inability to communicate or cooperate with the investigator due to language problem, poor mental development or impaired cerebral function.
  • Pregnant and nursing mother.
  • Female, unless surgically sterile or at least 2 years post-menopausal, not practicing barrier contraceptive methods.
  • Contraindications to active or inactive ingredients of the formulation.
  • Subject is not willing and able to remain in the study unit for the entire duration of each confinement period and return for all outpatient visits.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00932763

United States, Texas
CEDRA Clinical Research, LLC
San Antonio, Texas, United States, 78217
Sponsors and Collaborators
Torrent Pharmaceuticals Limited Identifier: NCT00932763     History of Changes
Other Study ID Numbers: 20-085-SA
First Posted: July 3, 2009    Key Record Dates
Last Update Posted: July 17, 2009
Last Verified: July 2009

Additional relevant MeSH terms:
Antihypertensive Agents
Calcium Channel Blockers
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Vasodilator Agents