ClinicalTrials.gov
ClinicalTrials.gov Menu

Efficacy and Safety of Quetiapine Fumarate Sustained Release (SEROQUEL SR) in the Treatment of Major Depressive Disorders (OPAL)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT00326144
Recruitment Status : Completed
First Posted : May 16, 2006
Last Update Posted : March 25, 2009
Sponsor:
Information provided by:
AstraZeneca

Brief Summary:
The purpose of this study is to demonstrate superior efficacy of Quetiapine fumarate sustained release (SEROQUEL) compared with placebo when used as a mono-therapy in the treatment of Major Depressive Disorders PLEASE NOTE: Seroquel SR and Seroquel XR refer to the same formulation. The SR designation was changed to XR after consultation with FDA.

Condition or disease Intervention/treatment Phase
Major Depressive Disorder Drug: Quetiapine fumarate Phase 3

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 310 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: A Multicenter, Double-Blind, Randomized, Parallel-Group, Placebo-Controlled Phase III Study of the Efficacy and Safety of Quetiapine Fumarate Sustained Release (Seroquel SR®) as Mono-Therapy in the Treatment of Adult Patients With Major Depressive Disorder
Study Start Date : April 2006
Actual Study Completion Date : May 2007

Resource links provided by the National Library of Medicine



Intervention Details:
  • Drug: Quetiapine fumarate
    Other Name: Seroquel


Primary Outcome Measures :
  1. To evaluate the efficacy of Quetiapine SR compared with placebo in the treatment of patients with MDD as assessed by change from randomization to Week 8 in the MADRS total score

Secondary Outcome Measures :
  1. To evaluate if Quetiapine SR improves the health-related quality of life of patients with MDD, compared to placebo
  2. To evaluate if quetiapine SR reduces anxiety symptoms in patients with MDD, compared to placebo


Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Patient is able to provide written informed consent before beginning any study related procedures
  • Patient has a documented clinical diagnosis of major depressive disorder
  • Patient is able to understand and comply with the requirements of the study, as judged by a study investigator

Exclusion Criteria:

  • Patients with a history of non-compliance as judged by the study investigator
  • Patients with a known lack of response to previous treatment with quetiapine
  • Patients who have participated in a clinical trial within 4 weeks of randomization

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00326144


  Show 34 Study Locations
Sponsors and Collaborators
AstraZeneca
Investigators
Study Director: Seroquel Medical Science Director, MD AstraZeneca

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

ClinicalTrials.gov Identifier: NCT00326144     History of Changes
Other Study ID Numbers: D1448C00003
OPAL
First Posted: May 16, 2006    Key Record Dates
Last Update Posted: March 25, 2009
Last Verified: March 2009

Keywords provided by AstraZeneca:
MDD
Depression

Additional relevant MeSH terms:
Disease
Depressive Disorder
Depression
Depressive Disorder, Major
Pathologic Processes
Mood Disorders
Mental Disorders
Behavioral Symptoms
Quetiapine Fumarate
Antipsychotic Agents
Tranquilizing Agents
Central Nervous System Depressants
Physiological Effects of Drugs
Psychotropic Drugs