Safety and Efficacy Maintenance Study of Quetiapine SR to Treat GAD Patients. (PLATINUM)

March 24, 2009 updated by: AstraZeneca

A Multi-Centre,Double-Blind,Randomised-Withdrawal,Parallel-Group, Placebo-Controlled Phase III Study of the Efficacy and Safety of Quetiapine SR as Monotherapy in the Maintenance Treatment of Patients With GAD Following an Open-Label Stabilisation Period

The primary objective of this study is to evaluate the efficacy of quetiapine SR compared to placebo in increasing time from randomisation to an anxiety event in patients with generalised anxiety disorder (GAD).

PLEASE NOTE: Seroquel SR and Seroquel XR refer to the same formulation. The SR designation was changed to XR after consultation with FDA.

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

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.
575

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

  • Australia
    • Queensland
      • Brisbane, Queensland, Australia
        • Research Site
      • Everton Park, Queensland, Australia
        • Research Site
      • West Burleigh, Queensland, Australia
        • Research Site
    • Victoria
      • Malvern, Victoria, Australia
        • Research Site
      • Prahran, Victoria, Australia
        • Research Site
  • Canada
    • Alberta
      • Edmonton, Alberta, Canada
        • Research Site
    • New Brunswick
      • Bathurst, New Brunswick, Canada
        • Research Site
    • Ontario
      • Hamilton, Ontario, Canada
        • Research Site
      • Kingston, Ontario, Canada
        • Research Site
      • Orleans, Ontario, Canada
        • Research Site
      • Toronto, Ontario, Canada
        • Research Site
      • Waterloo, Ontario, Canada
        • Research Site
    • Quebec
      • Gatineau, Quebec, Canada
        • Research Site
      • Montreal, Quebec, Canada
        • Research Site
  • Finland
      • Helsinki, Finland
        • Research Site
      • Joensuu, Finland
        • Research Site
      • Kuopio, Finland
        • Research Site
      • Oulu, Finland
        • Research Site
      • Pori, Finland
        • Research Site
      • Seinajoki, Finland
        • Research Site
      • Turku, Finland
        • Research Site
  • Germany
      • Berlin, Germany
        • Research Site
      • Gottingen, Germany
        • Research Site
      • Jena, Germany
        • Research Site
      • Leipzig, Germany
        • Research Site
      • München, Germany
        • Research Site
      • Naumburg, Germany
        • Research Site
      • Nurnberg, Germany
        • Research Site
      • Schwerin, Germany
        • Research Site
      • Siegen, Germany
        • Research Site
  • Hungary
      • Balassagyarmat, Hungary
        • Research Site
      • Budapest, Hungary
        • Research Site
      • Gyor, Hungary
        • Research Site
      • Gyula, Hungary
        • Research Site
      • Kecskemét, Hungary
        • Research Site
      • Nyíregyháza, Hungary
        • Research Site
  • Indonesia
      • Jakarta, Indonesia
        • Research Site
    • West Java
      • Bandung, West Java, Indonesia
        • Research Site
  • Korea, Republic of
      • Seoul, Korea, Republic of
        • Research Site
  • Philippines
      • Cebu City, Philippines
        • Research Site
      • Davao City, Philippines
        • Research Site
      • Mandaluyong City, Philippines
        • Research Site
      • Manila, Philippines
        • Research Site
      • Quezon City, Philippines
        • Research Site
  • Russian Federation
      • Moscow, Russian Federation
        • Research Site
      • Saratov, Russian Federation
        • Research Site
      • St. Petersburg, Russian Federation
        • Research Site
  • United Kingdom
      • Blackpool, United Kingdom
        • Research Site
      • Bolton, United Kingdom
        • Research Site
      • Cardiff, United Kingdom
        • Research Site
      • Chorley, United Kingdom
        • Research Site
      • Coventry, United Kingdom
        • Research Site
      • Glasgow, United Kingdom
        • Research Site
      • Hamilton, United Kingdom
        • Research Site
      • Liverpool, United Kingdom
        • Research Site
      • Manchester, United Kingdom
        • Research Site
    • Berkshire
      • Reading, Berkshire, United Kingdom
        • Research Site
    • West Sussex
      • Crawley, West Sussex, United Kingdom
        • Research Site
  • United States
    • Arizona
      • Mesa, Arizona, United States
        • Research Site
      • Peoria, Arizona, United States
        • Research Site
      • Phoenix, Arizona, United States
        • Research Site
    • California
      • Fresno, California, United States
        • Research Site
      • La Mesa, California, United States
        • Research Site
      • Oceanside, California, United States
        • Research Site
      • Redlands, California, United States
        • Research Site
    • Florida
      • Coral Springs, Florida, United States
        • Research Site
      • Deland, Florida, United States
        • Research Site
      • Ft Myers, Florida, United States
        • Research Site
      • Gainsville, Florida, United States
        • Research Site
      • Hialeah, Florida, United States
        • Research Site
      • Jacksonville, Florida, United States
        • Research Site
      • North Miami, Florida, United States
        • Research Site
      • Orlando, Florida, United States
        • Research Site
      • St Petersberg, Florida, United States
        • Research Site
    • Georgia
      • Atlanta, Georgia, United States
        • Research Site
      • Columbus, Georgia, United States
        • Research Site
      • Marietta, Georgia, United States
        • Research Site
      • Roswell, Georgia, United States
        • Research Site
    • Idaho
      • Coeur D'alene, Idaho, United States
        • Research Site
    • Illinois
      • Hoffman Estates, Illinois, United States
        • Research Site
      • Libertyville, Illinois, United States
        • Research Site
    • Indiana
      • Indianapolis, Indiana, United States
        • Research Site
      • Lafayette, Indiana, United States
        • Research Site
      • Valparaiso, Indiana, United States
        • Research Site
    • Kansas
      • Prairie Village, Kansas, United States
        • Research Site
    • Kentucky
      • Owensboro, Kentucky, United States
        • Research Site
      • Paducah, Kentucky, United States
        • Research Site
    • Louisiana
      • Shreveport, Louisiana, United States
        • Research Site
    • Maryland
      • Glen Burnie, Maryland, United States
        • Research Site
    • Massachusetts
      • Boston, Massachusetts, United States
        • Research Site
      • Cambridge, Massachusetts, United States
        • Research Site
      • Pittsfield, Massachusetts, United States
        • Research Site
    • Missouri
      • St Charles, Missouri, United States
        • Research Site
    • New Jersey
      • Piscataway, New Jersey, United States
        • Research Site
    • New York
      • Bronx, New York, United States
        • Research Site
      • Cedarhurst, New York, United States
        • Research Site
      • New York, New York, United States
        • Research Site
      • Rochester, New York, United States
        • Research Site
    • Ohio
      • Avon Lake, Ohio, United States
        • Research Site
      • Beechwood, Ohio, United States
        • Research Site
      • Cincinnati, Ohio, United States
        • Research Site
      • Middleburg Heights, Ohio, United States
        • Research Site
      • Toledo, Ohio, United States
        • Research Site
    • Oklahoma
      • Oklahoma City, Oklahoma, United States
        • Research Site
    • Pennsylvania
      • Allentown, Pennsylvania, United States
        • Research Site
      • Havertown, Pennsylvania, United States
        • Research Site
      • Pittsburgh, Pennsylvania, United States
        • Research Site
    • South Carolina
      • N. Charleston, South Carolina, United States
        • Research Site
    • Tennessee
      • Memphis, Tennessee, United States
        • Research Site
    • Texas
      • Desoto, Texas, United States
        • Research Site
      • San Antonio, Texas, United States
        • Research Site
      • Wichita Falls, Texas, United States
        • Research Site
    • Utah
      • Midvale, Utah, United States
        • Research Site
    • Virginia
      • Richmond, Virginia, United States
        • Research 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:

  • Patients will be male or female, 18 to 65 years of age (inclusive), with a diagnosis of GAD according to DSM-IV criteria 300.02 as assessed by the MINI.

Exclusion Criteria:

  • Patients suffering from depressive symptoms, defined as having a Montgomery-Åsberg Depression Rating Scale (MADRS) total score of 17 or more at the enrolment visit, will be excluded from participation in this study.

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
  • 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 from randomisation to occurrence of an anxiety event

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
Occurrence of an anxiety event
Change from randomisation in HAM-A/CGI-S scores
In HAM-A psychic/somatic anxiety factor scores
In MADRS total score and in MADRS item 10 score (suicidal thought)
Change in Patient Reported Outcomes (PRO): QLESQ/PSQ/SDS

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.
AstraZeneca

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.
March 1, 2006

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.
August 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).
April 11, 2006

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.
April 12, 2006

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.
April 13, 2006

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.
March 25, 2009

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.
March 24, 2009

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.
March 1, 2009

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.
  • D1448C00012
  • EUDRACT Number: 2005-005055-18

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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