A Efficacy Study of PRX-00023 in Patients With Major Depressive Disorder

November 9, 2007 updated by: Epix Pharmaceuticals, Inc.

A Randomized, Double-Blind, Placebo-Controlled Study of the Efficacy of PRX-00023 in Patients With Major Depressive Disorder.

The purpose of this randomized, double-blind, placebo-controlled study is to assess the safety and efficacy of PRX-00023 in patients with major depressive disorder.

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

Patients with major depressive disorder who meet all of the eligibility criteria will be randomly assigned to receive twice daily doses of either placebo or PRX-00023. Study drug will be taken for up to approximately 9 weeks. Patients will have periodic office visits for the purpose of monitoring safety and tolerability, as well as efficacy assessments.

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 (Anticipated)

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.
330

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 2

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

  • United States
    • Arizona
      • Mesa, Arizona, United States, 85206
        • Vista Medical Research, Inc.
    • California
      • Encino, California, United States, 91316
        • Pharmacology Research Institute
      • Los Alamitos, California, United States, 90720
        • Pharmacology Research Institute
      • National City, California, United States, 91950
        • Synergy Clinical Research Center
      • Oceanside, California, United States, 92056
        • Excell Research
      • Riverside, California, United States, 92506
        • Pacific Clinical Research Medical Group
      • Torrance, California, United States, 90505
        • AVI Clinical Research
      • Upland, California, United States, 91786
        • Pacific Clinical Research Medical Group
    • District of Columbia
      • Washington, District of Columbia, United States, 20037
        • GWU Clinical Psychiatric Research Center
    • Florida
      • Jacksonville, Florida, United States, 32216
        • CNS Healthcare of Jacksonville
    • Georgia
      • Atlanta, Georgia, United States, 30328
        • Atlanta Institute of Medicine and Research
    • Illinois
      • Chicago, Illinois, United States, 60634
        • Chicago Research Center, Inc.
    • Kansas
      • Overland Park, Kansas, United States, 66212
        • Vince and Associates Clinical Research
    • Louisiana
      • Shreveport, Louisiana, United States, 71101
        • Brentwood Research Institute
    • North Carolina
      • Charlotte, North Carolina, United States, 28216
        • Piedmont Neuropsychiatry
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19140
        • University of Pennsylvannia
    • South Carolina
      • Charleston, South Carolina, United States, 29407
        • SE Health Consultants, LLC
    • Texas
      • Dallas, Texas, United States, 75235
        • University of Texas - Southwestern Medical Center
      • Lake Jackson, Texas, United States, 77566
        • R/D Clinical Research, Inc.
    • Washington
      • Bellevue, Washington, United States, 98004
        • Northwest Clinical Research Center
      • Seattle, Washington, United States, 98104
        • Summit Research Network

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 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Key Inclusion Criteria:

  • Diagnosis of major depressive disorder

Key Exclusion Criteria:

  • Females who are pregnant or nursing
  • Electroconvulsive therapy within previous year
  • Type 1 diabetes or uncontrolled type 2 diabetes
  • HIV, Hepatitis B or Hepatitis C
  • Use of illegal drugs, history of drug abuse, and/or alcohol dependence
  • Clinically significant abnormal lab results

Other protocol-defined eligibility criteria may apply.

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: Parallel Assignment
  • Masking: Double

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: 1
PRX-00023 taken twice daily, escalating from 40 mg to 80 mg to 120 mg
Drug: PRX-00023
Doses taken two times per day. dose increased at scheduled intervals from 40 mg to 80 mg to 120 mg.
Placebo Comparator: 2
Placebo taken twice daily, escalating from 40 mg to 80 mg to 120 mg
Drug: Placebo for PRX-00023
Doses taken two times per day. dose increased at scheduled intervals from 40 mg to 80 mg to 120 mg.

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
Time Frame
Change from baseline on the Montgomery-Asberg Depression Rating Scale (MADRS).
Time Frame: change from baseline through end of study
change from baseline through end of study

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
Time Frame
Side effects during and immediately following the treatment period
Time Frame: assessed throughout study
assessed throughout study
changes from baseline on the Hamilton Anxiety Rating (HAM-A) scale
Time Frame: change from baseline through end of study
change from baseline through end of study
changes from baseline on the Quick Inventory of Depressive Symptomatology-self report (QIDS-SR)
Time Frame: change from baseline through end of study
change from baseline through end of study
changes from baseline on the Clinical Global Impressions (CGI) scale
Time Frame: change from baseline through end of study
change from baseline through end of study
responder and remission rates
Time Frame: change from baseline through end of study
change from baseline through end of study
changes from baseline on the Changes in Sexual Function (CSFQ) scale.
Time Frame: change from baseline through end of study
change from baseline through end of study

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.
Epix Pharmaceuticals, 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.
March 1, 2007

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.
November 1, 2007

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).
March 13, 2007

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.
March 15, 2007

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.
March 16, 2007

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.
November 14, 2007

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.
November 9, 2007

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.
November 1, 2007

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.
  • EPX-CP-020

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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