Levetiracetam 750 mg Tablets Under Fasting Conditions

Randomized, Open-Label, 2-Way Crossover, Bioequivalence Study of Levetiracetam 750 mg Tablet and Keppra® (Reference) Following a 750 mg Dose in Healthy Subjects Under Fasting Conditions

The objective of this study is to compare the rate and extent of absorption of a test formulation of Levetiracetam and the reference Keppra® administered as a 1 x 750 mg tablet under fasting conditions.

Study Overview

• Status: Completed
• Conditions: Healthy
• Intervention / Treatment: Drug: Levetiracetam; Drug: Keppra®

Detailed Description

Criteria for Evaluation: FDA Bioequivalence Criteria

Statistical Methods: FDA bioequivalence statistical methods

• Study Type: Interventional
• Enrollment (Actual): 22
• Phase: Phase 1

Contacts and Locations

Study Locations

• Canada
  • Quebec
    • Sainte-Foy, Quebec, Canada, G1V 2K8
      • SFBC-Anapharm

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 55 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria

• Male or Female, smoker or non-smoker, between the ages of 18 years and 55 years.
• BMI greater than or equal to 19.0 and less than 30.0 kg/m2.

Exclusion Criteria

Subjects to whom any of the following applies will be excluded from the study:

• Clinically significant illnesses or surgery within 4 weeks of the administration of study medication.
• Any clinically significant abnormality or abnormal laboratory test results found during medical screening.
• Any reason which, in the opinion of the medical subinvestigator, would prevent the subject from participating in the study.
• Positive testing for hepatitis B, hepatitis C or HIV at screening.
• ECG abnormalities (clinically significant) or vital sign abnormalities (systolic blood pressure lower than 90 or over 140 mmHg, or diastolic blood pressure lower than 50 or over 90; or heart rate less than 50 bpm or over 100 bpm) at screening.
• History of significant alcohol abuse or drug abuse within one year prior to the screening visit.
• Regular use of alcohol within six months prior to the screening visit (more than fourteen units of alcohol per week [1 Unit = 150 mL of wine, 360 mL of beer or 45 mL of 40% alcohol]), or positive alcohol breath test at screening.
• Use of soft drugs (such as marijuana) within 3 months of the screening visit or hard drugs (such as cocaine, phencyclidine (PCP) and crack) within 1 year of the screening visit or positive urine drug screen at screening.
• History of allergic reactions to heparin, levetiracetam, or other related drugs.
• Use of any drugs known to induce or inhibit hepatic drug metabolism (examples of inducers: barbiturates, carbamazepine, phenytoin, glucocorticoids, omeprazole; examples of inhibitors: antidepressants, cimetidine, diltiazem, macrolides, imidazoles, neuroleptics, verapamil, fluoroquinolones, antihistamines) within 30 days prior to the administration of the study medication.
• Use of an investigational drug or participation in an investigational study within 30 days prior to dosing.
• Clinically significant history or presence of any gastrointestinal pathology (e.g. chronic diarrhea, inflammatory bowel diseases), unresolved gastrointestinal symptoms (e.g. diarrhea, vomiting), liver or kidney disease, or other conditions known to interfere with the absorption, distribution, metabolism or excretion of the drug.
• Any clinically significant history or presence of neurological, endocrinal, cardiovascular, pulmonary, hematologic, immunologic, psychiatric or metabolic disease.
• Use of prescription medication within 14 days prior to administration of study medication or over-the-counter products) including natural food supplements, vitamins, garlic as a supplement) within 7 days prior to administration of study medication, except for topical products without systemic absorption.
• Difficulty to swallow study medication.
• Smoking more than 25 cigarettes per day.
• Any food allergy, intolerance, restriction, or special diet, that, in the opinion of the Medical Sub-Investigator could contraindicate the subject's participation in this study.
• A depot injection or an implant of an drug within 6 months prior to administration of study medication.
• Donation of plasma (500 mL) within 30 days prior to drug administration. Donation or loss of whole blood (excluding the volume of blood that will be drawn during the screening procedures of this study) prior to administration of the study medication as follows:
• 50 mL to 500 mL of whole blood within 30 days
• more than 500 mL of whole blood within 56 days.+
• Difficulty fasting or consuming the standard meals.
• Intolerance to venipunctures.
• Clinically significant history of renal, hepatic, or cardiovascular disease, tuberculosis, epilepsy, asthma, diabetes, psychosis or glaucoma will not be eligible for this study.
• Positive urine pregnancy test at screening.
• Breast feeding subjects.

Study Plan

How is the study designed?

Design Details

• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Keppra®; Keppra® 750 mg Tablet (reference) dosed in first period followed by Levetiracetam 750 mg Tablet (test) dosed in second period	Drug: Keppra®; 750 mg Tablet
Experimental: Levetiracetam; Levetiracetam 750 mg Tablet (test) dosed in first period followed by Keppra 750 mg Tablet (reference) dosed in second period	Drug: Levetiracetam; 750 mg Tablet

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Cmax - Maximum Observed Concentration	Bioequivalence based on Cmax	Blood samples collected over 36 hour period
AUC0-inf - Area Under the Concentration-time Curve From Time Zero to Infinity (Extrapolated)	Bioequivalence based on AUC0-inf	Blood samples collected over 36 hour period
AUC0-t - Area Under Concentration-time Curve From Time Zero to Time of Last Non-zero Concentration (Per Participant)	Bioequivalence based on AUC0-t	Blood samples collected over 36 hour period

Collaborators and Investigators

• Sponsor: Teva Pharmaceuticals USA
• Investigators: Principal Investigator: Richard Larouche, MD, SFBC Anapharm

Study record dates

Study Major Dates

• Study Start: October 1, 2005
• Primary Completion (Actual): November 1, 2005
• Study Completion (Actual): November 1, 2005

Study Registration Dates

• First Submitted: February 20, 2009
• First Submitted That Met QC Criteria: February 20, 2009
• First Posted (Estimate): February 24, 2009

Study Record Updates

• Last Update Posted (Estimate): September 11, 2009
• Last Update Submitted That Met QC Criteria: September 1, 2009
• Last Verified: September 1, 2009

More Information

Terms related to this study

• Keywords: Bioequivalence; Healthy Subjects
• Additional Relevant MeSH Terms: Anticonvulsants; Nootropic Agents; Levetiracetam
• Other Study ID Numbers: 50276