Completed

An 8-week, Multicenter, Double-blind, Randomized, Parallel-group, Placebo-controlled Study of the Efficacy and Safety of Quetiapine Fumarate (SEROQUEL) Extended-Release in Children and Adolescent Subjects With Bipolar Depression

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What is being tested

Quetiapine XR

+ Placebo

Drug
Who is being recruted

Bipolar and Related Disorders+4

+ Behavior

+ Mental Disorders

From 10 to 17 Years
+8 Eligibility Criteria
See all eligibility criteria
How is the trial designed

Treatment Study

Placebo-ControlledPhase 3
Interventional
Study Start: January 2009
See protocol details

Summary

Principal SponsorAstraZeneca
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: January 1, 2009

Actual date on which the first participant was enrolled.

The purpose of this study is to determine if quetiapine fumarate extended-release (quetiapine XR or SEROQUEL® XR) 150 to 300 mg/day taken by itself is effective and safe in treating children or adolescents aged 10 to 17 with bipolar depression and if so, how it compares with placebo (a non-active tablet, like a sugar pill, that looks like quetiapine).

Official TitleAn 8-week, Multicenter, Double-blind, Randomized, Parallel-group, Placebo-controlled Study of the Efficacy and Safety of Quetiapine Fumarate (SEROQUEL) Extended-Release in Children and Adolescent Subjects With Bipolar Depression
NCT00811473
Principal SponsorAstraZeneca
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

193 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 10 to 17 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Bipolar and Related DisordersBehaviorMental DisordersBehavioral SymptomsBipolar DisorderDepressionMood Disorders

Criteria

4 inclusion criteria required to participate
Provision of informed consent by one or both parents or legal guardian and written assent by the patients before any study procedures are performed.
The patient must have a documented clinical diagnosis for bipolar I or bipolar II disorder, and including current episode depressed.
Patients are required to be in outpatient status at the enrollment and randomization visits and believed likely to remain an outpatient for the duration of the study.
Patients must be able to swallow the study medication tablets.
4 exclusion criteria prevent from participating
The patient must not have been diagnosed with Tourette's Disorder, Obsessive-Compulsive Disorder, acute Post-traumatic Stress Disorder, Panic Disorder, Autistic Disorder and/or Asperger's Disorder.
Patient can not have a history of non-response to an adequate treatment to more than 2 antidepressants during the current episode.
The patient must not have received electroconvulsive therapy (ECT) within 30 days before participating in the study.
Patients who in your doctors judgement pose a current suicidal or homicidal risk.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

2 intervention groups are designated in this study

50% chance of being blinded to the placebo group

Treatment Groups

Group I

Experimental

Group II

Placebo

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 48 locations

Suspended

Research Site

Gainsville, United StatesOpen Research Site in Google Maps
Suspended

Research Site

Dothan, United States
Suspended

Research Site

Scottsdale, United States
Suspended

Research Site

North Miami, United States
Completed48 Study Centers