Safety, Efficacy, and Tolerability of Vilazodone in Major Depressive Disorder

February 21, 2014 updated by: Forest Laboratories

A Double-blind, Placebo-controlled, Fixed-dose Study of Vilazodone in Patients With Major Depressive Disorder

The purpose of this study was to further characterize the efficacy, safety, and tolerability of a single fixed dose level of vilazodone compared to placebo 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.

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.
518

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 4

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
    • California
      • Beverly Hills, California, United States, 90210
        • Forest Investigative Site 009
      • Encino, California, United States, 91316
        • Forest Investigative Site 003
      • New port Beach, California, United States, 92660
        • Forest Investigative Site 010
    • Florida
      • Jacksonville, Florida, United States, 32216
        • Forest Investigative Site 005
      • Orlando, Florida, United States, 32806
        • Forest Investigative Site 004
    • Georgia
      • Atlanta, Georgia, United States, 30328
        • Forest Investigative Site 012
    • Maryland
      • Baltimore, Maryland, United States, 21285
        • Forest Investigative Site 001
    • Ohio
      • Dayton, Ohio, United States, 45417
        • Forest Investigative Site 002
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Forest Investigative Site 011
    • Rhode Island
      • Lincoln, Rhode Island, United States, 02865
        • Forest Investigative Site 015
    • Tennessee
      • Memphis, Tennessee, United States, 38119
        • Forest Investigative Site 008
    • Texas
      • San Antonio, Texas, United States, 78229
        • Forest Investigative Site 016
    • Washington
      • Bellevue, Washington, United States, 98007
        • Forest Investigative Site 006
      • Seattle, Washington, United States, 98104
        • Forest Investigative Site 013

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 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Men and women, 18-70 years of age.
  • Currently meet the Diagnostic and Statistical Manual of Mental Disorders Fourth Edition, Text Revision (DSM-IV-TR) criteria for Major Depressive Disorder.
  • The patient's current major depressive episode must be at least 8 weeks and no longer than 12 months in duration.

Exclusion Criteria:

  • Women who are pregnant, women who will be breastfeeding during the study, and women of childbearing potential who are not practicing a reliable method of birth control.

  • Patients with a history of meeting DSM-IV-TR criteria for any:

    • manic, hypomanic or mixed episode, including bipolar disorder and substance-induced manic, hypomanic, or mixed episode;
    • any depressive episode with psychotic or catatonic features;
    • panic disorder with or without agoraphobia;
    • obsessive-compulsive disorder;
    • schizophrenia, schizoaffective, or other psychotic disorder;
    • bulimia or anorexia nervosa;
    • presence of borderline personality disorder or antisocial personality disorder;
    • mental retardation, dementia, amnesia, or other cognitive disorders;
    • patients who are considered a suicide risk.

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: Triple

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.
Placebo Comparator: Dose-matched placebo
Participants received dose-matched placebo orally once daily for 9 weeks.
Drug: Dose-matched placebo
Dose-matched placebo was supplied as tablets.
Experimental: Vilazodone
Participants received vilazodone orally once daily for 9 weeks, as follows: Week 1, 10 mg once a day; Week 2, 20 mg once a day; Weeks 3 to 8, 40 mg once a day; and Week 9 (down-taper period), 20 mg once a day for 4 days, then 10 mg once a day for 3 days.
Drug: Vilazodone
Vilazodone was supplied as tablets.
Other Names:
  • Viibryd

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
Change From Baseline in the Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score at Week 8
Time Frame: Baseline to Week 8
The MADRS is a clinician-rated scale for assessing depressive symptomatology that had occurred in participants during the week preceding each interview. Patients were rated on 10 items to assess feelings of sadness, lassitude, pessimism, inner tension, suicidality, reduced sleep or appetite, difficulty concentrating, and lack of interest. Each item was scored on a 7-point scale from 0 (no symptoms) to 6 (symptoms of maximum severity). The total score was the sum of the scores on the 10 items and ranged from 0 to 60. A higher score indicated more depressive symptomatology. A negative change score indicated improvement.
Baseline to Week 8

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
Change From Baseline in Clinical Global Impressions-Severity (CGI-S) Score at Week 8
Time Frame: Baseline to Week 8
The CGI-S is a clinician-rated scale for assessing the severity of the participant's current state of mental illness compared with a patient population with major depressive disorder. The clinician responded to the following question "Considering your total clinical experience with this population, how mentally ill is the participant at this time?" on a 7-point scale: 1=normal, not at all ill; 2=borderline ill; 3=mildly ill; 4=moderately ill; 5=markedly ill; 6=severely ill; 7=among the most extremely ill patients. The scale ranges from 1 to 7. A higher score indicates more severe mental illness. A negative change score indicates improvement.
Baseline to Week 8
Percentage of Participants With a Montgomery-Åsberg Depression Rating Scale (MADRS) Sustained Response Rate
Time Frame: Baseline to Week 8
The MADRS Sustained response rate is defined as a MÅDRS total score ≤ 12 for at least the last 2 consecutive visits during the double-blind treatment period.
Baseline to Week 8

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.
Forest Laboratories

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
December 1, 2011

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, 2013

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.
February 1, 2013

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).
November 14, 2011

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.
November 16, 2011

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.
November 17, 2011

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 3, 2014

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.
February 21, 2014

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.
February 1, 2014

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.
  • VLZ-MD-03

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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