Seroquel STACK Study in Schizophrenic or Schizoaffective Subjects

March 24, 2009 updated by: AstraZeneca

A Canadian, Multicenter, Double-Blind, Randomized, Parallel-Group Study of the Safety, Tolerability, and Efficacy of Treatment With Higher Doses of Quetiapine Fumarate (Seroquel®) Greater Than 800 mg/Day in Schizophrenic or Schizoaffective Subjects.

The purpose of the study is to assess and compare the side effect profile, safety, tolerability and efficacy of schizophrenic or schizoaffective subjects non- or partially- responsive to 800 mg/day of quetiapine treated with either 800 mg/day or more than 800 mg/day of quetiapine during 8 weeks.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment

330

Phase

  • 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
      • Calgary, Alberta, Canada
        • Research Site
      • Edmonton, Alberta, Canada
        • Research Site
      • West Claresholm, Alberta, Canada
        • Research Site
    • British Columbia
      • Victoria, British Columbia, Canada
        • Research Site
      • White Rock, British Columbia, Canada
        • Research Site
    • Manitoba
      • Winnipeg, Manitoba, Canada
        • Research Site
    • Nova Scotia
      • Sydney, Nova Scotia, Canada
        • Research Site
    • Ontario
      • Kingston, Ontario, Canada
        • Research Site
      • London, Ontario, Canada
        • Research Site
      • Markham, Ontario, Canada
        • Research Site
      • Mississauga, Ontario, Canada
        • Research Site
      • Ottawa, Ontario, Canada
        • Research Site
      • Windsor, Ontario, Canada
        • Research Site
    • Quebec
      • Montreal, Quebec, Canada
        • Research Site
      • Quebec City, Quebec, Canada
        • Research Site
      • Verdun, Quebec, Canada
        • Research Site
    • Saskatchewan
      • Saskatoon, Saskatchewan, Canada
        • 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

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Inclusion Criteria: Men and women, age 18-65 years with persistent positive or negative symptoms with a PANSS total score of ≥ 70 and < 110 and a Clinical Global Improvement (CGI)- Severity of Illness score of at least 4 (moderately ill) at screening. Subjects may be treated as in- or out-patients. Subjects must give written informed consent.

Exclusion Criteria:

  • Subjects with other psychiatric, medical or behavioural comorbid disorder that may interfere with study conduct or interpretation.
  • Female of childbearing potential, unless the subject is using a reliable method of contraception
  • Subjects with alcohol or psychoactive-substance dependence not in full remission or with significant alcohol or substance abuse in the past 3 months will be excluded.
  • Laboratory test results outside the range of reference considered by the investigator to be clinically significant.
  • Inability to respect the visit schedule and known intolerance to quetiapine at 800mg/day.

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

Outcome Measure
To determine the proportion of subjects (%) experiencing emergent or a worsening of EPS following treatment of quetiapine 800mg or higher than 800 mg/day in schizophrenic or schizoaffective subjects.

Secondary Outcome Measures

Outcome Measure
To determine the safety, tolerability and efficacy of treatment with quetiapine in with doses higher than 800 mg/day in schizophrenic or schizoaffective subjects.

Collaborators and Investigators

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

Sponsor

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

October 1, 2003

Study Completion (Actual)

September 1, 2005

Study Registration Dates

First Submitted

May 22, 2006

First Submitted That Met QC Criteria

May 22, 2006

First Posted (Estimate)

May 24, 2006

Study Record Updates

Last Update Posted (Estimate)

March 25, 2009

Last Update Submitted That Met QC Criteria

March 24, 2009

Last Verified

March 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DC-990-0165
  • D1441C00023

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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