Study Of An FDA-approved Drug As Additional Therapy In Patients With Schizophrenia

October 5, 2016 updated by: GlaxoSmithKline

A Multicenter, Randomized, Double-Blind, Parallel Group Study to Evaluate the Efficacy and Safety of a Flexible Dose of Lamotrigine Compared to Placebo as an Adjunctive Therapy to an Atypical Antipsychotic Agent(s) in Subjects With Schizophrenia

This is a 12-week study for the treatment of chronic persistent symptoms in participants with schizophrenia. Participants on a stable, optimal dose of up to two atypical antipsychotics who fulfill the screening criteria will be randomized to receive either an FDA-approved drug or placebo in addition to the current treatment. Safety will be closely monitored through vital signs, various tests, and blood and urine samples.

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.
209

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 3

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
    • Alberta
      • Edmonton, Alberta, Canada, T6G 2C8
        • GSK Investigational Site
      • Edmonton, Alberta, Canada, T5K 2J5
        • GSK Investigational Site
    • British Columbia
      • Kelowna, British Columbia, Canada, V1W 4V5
        • GSK Investigational Site
    • Manitoba
      • Winnipeg, Manitoba, Canada, R3E 3N4
        • GSK Investigational Site
    • New Brunswick
      • Miramichi, New Brunswick, Canada, E1V 3G5
        • GSK Investigational Site
    • Nova Scotia
      • Dartmouth, Nova Scotia, Canada, B2Y 3S3
        • GSK Investigational Site
      • Sydney, Nova Scotia, Canada, B1S 2E8
        • GSK Investigational Site
    • Ontario
      • Burlington, Ontario, Canada, L7N 3V2
        • GSK Investigational Site
      • London, Ontario, Canada, N6A 4G5
        • GSK Investigational Site
      • Mississauga, Ontario, Canada, L5M 4N4
        • GSK Investigational Site
      • Sudbury, Ontario, Canada, P3E 1X3
        • GSK Investigational Site
      • Toronto, Ontario, Canada, M6M 3Z5
        • GSK Investigational Site
      • Windsor, Ontario, Canada, N9C 3Z4
        • GSK Investigational Site
  • United Kingdom
      • Hull, United Kingdom, HU6 7RX
        • GSK Investigational Site
    • Bedfordshire
      • Bedford, Bedfordshire, United Kingdom, MK42 9DJ
        • GSK Investigational Site
    • Cambridgeshire
      • Cambridge, Cambridgeshire, United Kingdom, CB1 5EF
        • GSK Investigational Site
    • Lanarkshire
      • Glasgow, Lanarkshire, United Kingdom, G66 3UG
        • GSK Investigational Site
    • Warwickshire
      • Coventry, Warwickshire, United Kingdom, CV2 2DX
        • GSK Investigational Site
  • United States
    • Arkansas
      • Little Rock, Arkansas, United States, 72201
        • GSK Investigational Site
    • California
      • Garden Grove, California, United States, 92845
        • GSK Investigational Site
      • Glendale, California, United States, 91206
        • GSK Investigational Site
      • Los Angeles, California, United States, 90033
        • GSK Investigational Site
      • Pico Rivera, California, United States, 90660
        • GSK Investigational Site
      • San Diego, California, United States, 92126
        • GSK Investigational Site
      • Sherman Oaks, California, United States, 91403
        • GSK Investigational Site
    • Florida
      • Coral Springs, Florida, United States, 33065
        • GSK Investigational Site
      • Maitland, Florida, United States, 32751
        • GSK Investigational Site
      • Miami, Florida, United States, 33125
        • GSK Investigational Site
      • North Miami, Florida, United States, 33161
        • GSK Investigational Site
      • Winter Park, Florida, United States, 32789
        • GSK Investigational Site
    • Illinois
      • Niles, Illinois, United States, 60714
        • GSK Investigational Site
      • Oak Brook, Illinois, United States, 60523
        • GSK Investigational Site
    • Indiana
      • Indianapolis, Indiana, United States, 46202
        • GSK Investigational Site
      • Indianapolis, Indiana, United States, 46202-5200
        • GSK Investigational Site
    • New York
      • Staten Island, New York, United States, 10305
        • GSK Investigational Site
    • Tennessee
      • Nashville, Tennessee, United States, 37203
        • GSK Investigational Site
    • Texas
      • Bellaire, Texas, United States, 77401
        • GSK Investigational Site
      • San Antonio, Texas, United States, 78229
        • GSK Investigational Site
    • Wisconsin
      • Madison, Wisconsin, United States, 53711-2027
        • GSK Investigational Site

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

Inclusion criteria:

  • Diagnosed with schizophrenia.
  • Exhibits persistent positive symptoms that have persisted for a minimum of 3 months prior to screening.
  • Continuously taking 1-2 specific atypical antipsychotics for a minimum of 3 months and must be on a stable dose for at least 1 month prior to entering the study.
  • Participant or a legal guardian is able to understand and sign the consent form.

Exclusion criteria:

  • PANSS (Positive and Negative Syndrome Score) total score increases or decreases by more than 20% between the Screening and Baseline visits.
  • Predominant Axis I disorder other than schizophrenia within 6 months prior to screening.
  • History of clinically significant or unstable medical disorder or treatment that would interfere with the study.
  • History of autistic disorder or another pervasive developmental disorder, organic brain disease, dementia, stroke, epilepsy or a history of seizures requiring treatment (this does not include febrile seizures as a child), or those who have suffered a traumatic head injury.
  • Taking psychotropic or primarily centrally active medication at screening.
  • Use of antidepressant medications or mood stabilizers within 1 month of screening.

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

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 in the total score of the Positive and Negative Symptom Scale (PANSS) at Week 12.
Time Frame: 12 Weeks
12 Weeks

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
- Efficacy - Change from baseline in PANSS positive symptoms at Week 12 - Change from baseline in the Scale for the Assessment of Negative Symptoms (SANS) at Week 12 - Change from baseline in PANSS general psychopathology symptoms at Week 12.
Time Frame: 12 Weeks
12 Weeks

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.
GlaxoSmithKline

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.

Helpful Links

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.
May 1, 2004

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.
July 1, 2005

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.
July 1, 2005

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).
July 6, 2004

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.
July 7, 2004

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.
July 8, 2004

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.
October 7, 2016

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.
October 5, 2016

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.
October 1, 2016

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.
  • 101464

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Study Data/Documents

  1. Study Protocol
    Information identifier: 101464
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register
  2. Dataset Specification
    Information identifier: 101464
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register
  3. Informed Consent Form
    Information identifier: 101464
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register
  4. Statistical Analysis Plan
    Information identifier: 101464
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register
  5. Clinical Study Report
    Information identifier: 101464
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register
  6. Individual Participant Data Set
    Information identifier: 101464
    Information comments: For additional information about this study please refer to the GSK Clinical Study Register

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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