Comparative Bioavailability Study of Extended-release and Immediate-release Trazodone in Healthy Adult Volunteers

April 24, 2012 updated by: Labopharm Inc.

Crossover Comparative Bioavailability Study of Trazodone Contramid(r) OAD 300 mg Extended-release Caplets and Desyrel(r) 100 mg Immediate-release Tablets in Healthy Adult Volunteers Under Fasting Conditions

The objective of the study is to compare the pharmacokinetic profiles of extended-release and immediate-release trazodone formulations

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The bioavailability of once-daily trazodone extended-release 300 mg caplets (test product) and trazodone immediate-release 100 mg tablets administered q8h (reference product) will be compared in healthy adult volunteers in a randomized, crossover fashion. Morning doses will be administered after an overnight fast. Blood samples will be collected predose and at pre-defined times over 72 hours following the morning dose. Pharmacokinetic parameters will be analyzed using ANOVA. Comparative bioavailability will be assessed on the basis of the ratio of least-squares means and/or 90% confidence interval criteria.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
24

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Quebec
      • Laval, Quebec, Canada, H7V 4B3
        • Algorithme Pharma Inc.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 45 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Availability for entire study period and willingness to adhere to protocol requirements as evidenced by signed informed consent
  • Male or female volunteer, aged between 18 and 45 years inclusively
  • BMI ≥20 and <30 kg/m2
  • Minimum body weight: 60 kg
  • Clinical laboratory values within normal range, or without clinical significance
  • Healthy according to medical history, clinical laboratory results and physical examination
  • Nonsmoker or ex-smoker

Exclusion Criteria:

  • Significant history of hypersensitivity to trazodone or any related products, or severe hypersensitivity reactions to any drugs
  • Presence or history of significant gastrointestinal, liver or kidney disease, or any other conditions known to interfere with the absorption, distribution, metabolism, or excretion of drugs or known to potentiate or predispose to undesired effects
  • Presence of significant cardiovascular, pulmonary, hematologic, neurological, psychiatric, endocrine, immunologic, or dermatologic disease
  • Suicidal tendency, history of or disposition to seizures, state of confusion, clinically relevant psychiatric disease
  • Use of MAO inhibitors within 28 days of day 1 of the study
  • Presence of significant heart disease or disorder according to ECG
  • Seated systolic blood pressure lower than 90 or over 140 mmHg or diastolic blood pressure lower than 50 or over 90 mmHg at screening
  • Maintenance therapy with any drug, or significant history of drug dependency or alcohol abuse (>3 units of alcohol per day, intake of excessive alcohol, acute or chronic)
  • Any clinically significant illness in the previous 28 days before day 1 of this study
  • Use of any enzyme-modifying drugs, including strong inhibitors of cytochrome P450 (CYP) enzymes (such as cimetidine, fluoxetine, quinidine, erythromycin, ciprofloxacin, fluconazole, ketoconazole, diltiazem, and HIV antivirals) and strong inducers of CYP enzymes (such as barbiturates, carbamazepine, glucocorticoids, phenytoin, and rifampin), in the previous 28 days before day 1 of this study
  • Females who are pregnant according to a positive serum pregnancy test, or are lactating
  • Females of childbearing potential who refuse to use an acceptable method of contraception from the screening visit and throughout the study
  • Volunteers who took an investigational product (in another clinical trial) or donated 50 mL or more of blood in the previous 28 days before day 1 of this study
  • Poor motivation, intellectual problems likely to limit the validity of consent to participate in the study or limit the ability to comply with the protocol requirements or inability to cooperate adequately, inability to understand and to observe the instructions of the physician
  • Donation of 500 mL or more of blood (Canadian Blood Services, Hema-Quebec, clinical studies, etc) in the previous 56 days before day 1 of the study
  • Positive urine screening for drugs of abuse
  • Any history of tuberculosis and/or prophylaxis for tuberculosis
  • Positive results to HIV, HBsAg, or anti-HCV tests

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

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

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Trazodone Contramid OAD
Drug: Trazodone HCl
100 mg immediate-release tablet, dosing q8h
Drug: Trazodone HCl
300 mg extended-release caplet, single dose
Other Names:
  • Oleptro
Active Comparator: Desyrel
Drug: Trazodone HCl
100 mg immediate-release tablet, dosing q8h
Drug: Trazodone HCl
300 mg extended-release caplet, single dose
Other Names:
  • Oleptro

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Bioequivalence Based on Cmax
Time Frame: 72 hours post-dose
Cmax = Maximum plasma concentration Measured in nanograms per millilitre (ng/mL)
72 hours post-dose
Bioequivalence Based on AUCT
Time Frame: 72 hours post-dose
AUCT = Area under the concentration-time curve from 0 to the time of the last quantifiable concentration
72 hours post-dose
Bioequivalence Based on AUC∞
Time Frame: 72 hours post-dose
AUC∞ = Area under the concentration-time curve extrapolated to infinity
72 hours post-dose

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Time of Maximum Measured Plasma Concentration (Tmax)
Time Frame: 72 hours post-dose
72 hours post-dose
Apparent Terminal Elimination Half-Life [T½el]
Time Frame: 72 hours post-dose
The elimination half-life (T½el) of trazodone in plasma (time it takes for the concentration of trazodone to fall to half), expressed in hours.
72 hours post-dose
Area Under the Concentration-time Curve From 0 to 24 Hours [AUC0-24]
Time Frame: 24 hours
24 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Labopharm Inc.

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Algorithme Pharma Inc

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2009

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 1, 2009

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2009

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 6, 2009

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 6, 2009

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 9, 2009

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 27, 2012

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 24, 2012

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2012

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 04ACL1-011
  • TAN-P8-681

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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