Quetiapine Fumarate as Monotherapy in the Maintenance Treatment of Patients With Major Depressive Disorder (AMETHYST)
The purpose of this study is to determine safety & efficacy of SEROQUEL SR™ in the treatment of major depressive disorder compared to placebo & to evaluate quality of sleep, overall quality of life, and effect, if any, on anxiety and satisfaction PLEASE NOTE: Seroquel SR and Seroquel XR refer to the same formulation. The SR designation was changed to XR after consultation with FDA.
Major Depressive Disorder
Drug: Quetiapine Fumarate Sustained Release
|Study Design:||Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Primary Purpose: Treatment
|Official Title:||A Multi-Centre, Double-Blind, Randomised-Withdrawal, Parallel-Group, Placebo-Controlled Phase III Study of the Efficacy and Safety of Quetiapine Fumarate Sustained Release (SEROQUEL SR™) As Monotherapy in the Maintenance Treatment of Patients With Major Depressive Disorder|
- To evaluate the efficacy of quetiapine SR compared to placebo in increasing time from randomisation to a depressed event in patients with Major Depressive Disorder (MDD)
- Evaluate quetiapine SR compared to placebo on health related quality of life.
|Study Start Date:||December 2005|
|Study Completion Date:||August 2007|
Show 168 Study Locations
|Study Director:||AstraZeneca Seroquel Medical Science Director, MD||AstraZeneca|