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ClinicalTrials.gov public records Last synced Oct 2, 2026, 3:26 PM EDT

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Showing 1–24 of 33 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: quetiapine (Seroquel XR) Clear all
Terminated Phase 4 Interventional Results available

Open-Label Pilot Study to Examine the Value of Substituting Quetiapine for Benzodiazepines

NCT01244711
View directory record Official record
Conditions
Major Depression, Generalized Anxiety Disorder
Interventions
quetiapine
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 65 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 3, 2015 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety Study of Seroquel SR in the Treatment of Generalised Anxiety Disorder

NCT00389064
View directory record Official record
Conditions
Anxiety Disorders
Interventions
Quetiapine XR, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
66 Years and older
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
14
States / cities
Fort Myers, Florida • Gainsville, Florida • Miami, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2012 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 3 Interventional Results available

Generalized Anxiety Disorder Adjunct Study

NCT00534599
View directory record Official record
Conditions
Anxiety, Anxiety Disorders, Anxiety Neuroses, Anxiety States
Interventions
Placebo, quetiapine fumarate XR
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 65 Years
Enrollment
409 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
53
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Beverly Hills, California + 50 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2011 · Synced Oct 2, 2026, 3:26 PM EDT
Terminated Phase 4 Interventional Results available

Quetiapine XR for Cognitive and Functional Disability in Clinically Stable Patients With Bipolar Disorder

NCT00746421
View directory record Official record
Conditions
Bipolar Disorder, Cognitive Impairment
Interventions
Quetiapine XR, Placebo
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
2
States / cities
Atlanta, Georgia • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 17, 2014 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 1 Interventional

Study Investigating the Effect of Lu AF35700 on Cardiac Repolarization in Men and Women With Schizophrenia and Schizoaffective Disorder

NCT02901587
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Lu AF35700 (10 mg/day), Lu AF35700 (30 mg/day), Quetiapine (Seroquel XR® 800 mg/day)
Drug
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
21 Years to 60 Years
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Long Beach, California
Source: ClinicalTrials.gov public record
Updated Sep 12, 2019 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Not applicable Interventional Results available

Quetiapine for the Reduction of Cocaine Use

NCT00631748
View directory record Official record
Conditions
Cocaine Dependence, Cocaine Abuse, Cocaine Addiction, Drug Abuse, Substance Abuse
Interventions
quetiapine fumarate, Matched Placebo, Cognitive-behavioral Therapy
Drug · Behavioral
Lead sponsor
Seattle Institute for Biomedical and Clinical Research
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Mar 31, 2014 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 3 Interventional Results available

Brexpiprazole in Patients With Acute Schizophrenia

NCT01810380
View directory record Official record
Conditions
Schizophrenia
Interventions
Placebo, Brexpiprazole, Quetiapine extended release
Drug
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
18 Years to 65 Years
Enrollment
468 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Escondido, California
Source: ClinicalTrials.gov public record
Updated Mar 16, 2017 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 2 Interventional

Bipolar Study of Seroquel XR With Pramipexole Dihydrochloride

NCT00893841
View directory record Official record
Conditions
Bipolar Depression
Interventions
quetiapine (Seroquel) XR, placebo, pramipexole dihydrochloride
Drug
Lead sponsor
Dr. D McIntosh & Dr. K Kjernisted Clinical Research Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
2
States / cities
San Diego, California • Kirkland, Washington
Source: ClinicalTrials.gov public record
Updated Feb 4, 2013 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 4 Interventional Results available

Brain Imaging of Quetiapine Response in Anxious Depression

NCT00982345
View directory record Official record
Conditions
Major Depression
Interventions
quetiapine (Seroquel XR)
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 30, 2016 · Synced Oct 2, 2026, 3:26 PM EDT
Terminated No phase listed Observational

Longitudinal Comparative Effectiveness of Bipolar Disorder Therapies

NCT02893371
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Lithium Carbonate, Lamotrigine, Valproic Acid, Oxcarbazepine, Carbamazepine, Ziprasidone, Risperidone, Quetiapine, Olanzapine, Aripiprazole, Fluoxetine / Olanzapine, Haloperidol, Perphenazine, Clozapine, Asenapine, Lurasidone, Paliperidone, Mirtazapine, Bupropion, Desvenlafaxine, Duloxetine, Venlafaxine, Citalopram, Escitalopram, Fluoxetine, Fluvoxamine, Paroxetine, Sertraline, Vilazodone, Doxepin
Drug
Lead sponsor
University of New Mexico
Other
Eligibility
Not listed
Enrollment
1,037,352 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Mar 12, 2024 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 3 Interventional Results available

The Effects of Quetiapine (Seroquel XR) on Sleep During Alcohol Abstinence

NCT00434876
View directory record Official record
Conditions
Alcoholism, Sleep Initiation and Maintenance Disorders
Interventions
Quetiapine XR, Placebo.
Drug
Lead sponsor
Subhajit Chakravorty
Federal
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 9, 2013 · Synced Oct 2, 2026, 3:26 PM EDT
Terminated Phase 3 Interventional Results available

Quetiapine Extended Release (XR) Treatment of Major Depressive Disorder With Comorbid Generalized Anxiety Disorder

NCT00868374
View directory record Official record
Conditions
Major Depressive Disorder, Generalized Anxiety Disorder
Interventions
Quetiapine XR, Placebo
Drug
Lead sponsor
Keming Gao
Other
Eligibility
18 Years to 70 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 29, 2016 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 3 Interventional Results available

Seroquel Extended Release (XR) for the Management of Borderline Personality Disorder (BPD)

NCT00880919
View directory record Official record
Conditions
Borderline Personality Disorder
Interventions
quetiapine extended-release, Placebo
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 45 Years
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
3
States / cities
Iowa City, Iowa • Belmont, Massachusetts • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 9, 2017 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 3 Interventional Results available

Quetiapine Extended Release (XR) in Bipolar Patients With Comorbid Generalized Anxiety Disorder (GAD)

NCT00671853
View directory record Official record
Conditions
Bipolar Disorder, Anxiety, Anxiety Disorders, Substance Use Disorders
Interventions
Quetiapine XR, Placebo for quetiapine XR
Drug
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 29, 2016 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Quetiapine in Melancholic Depression

NCT01200901
View directory record Official record
Conditions
Depression, Healthy
Interventions
Quetiapine
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 18, 2013 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 3 Interventional Results available

A Study of the Long-term Safety and Tolerability of an Investigational Drug in People With Schizophrenia.

NCT04115319
View directory record Official record
Conditions
Schizophrenia
Interventions
SEP363856, quetiapine XR
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
305 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
18
States / cities
Cerritos, California • Oakland, California • Oceanside, California + 15 more
Source: ClinicalTrials.gov public record
Updated Dec 31, 2025 · Synced Oct 2, 2026, 3:26 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Generalized Anxiety and Seroquel

NCT01066143
View directory record Official record
Conditions
Generalized Anxiety Disorder, Seroquel XR
Interventions
Seroquel XR
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 55 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 17, 2017 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Quetiapine Fumarate Immediate Release (IR) Versus Extended Release (XR) Dose Escalation Comparison

NCT00702676
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Quetiapine Fumarate
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 50 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 16, 2009 · Synced Oct 2, 2026, 3:26 PM EDT
Terminated Early Phase 1 Interventional

An Open Label, Double-blind Discontinuation Study of Quetiapine Extended Release(XR)

NCT00606541
View directory record Official record
Conditions
Social Anxiety Disorder
Interventions
Quetiapine XR, Placebo
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 1, 2014 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 4 Interventional Results available

A Study of Quetiapine SR (Seroquel SR) to Treat SSRI-Resistant, Comorbid Panic Disorder Patients

NCT00619892
View directory record Official record
Conditions
Panic Disorder
Interventions
quetiapine XR, placebo
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jan 21, 2016 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 3 Interventional Results available

Pediatric Bipolar Depression

NCT00811473
View directory record Official record
Conditions
Bipolar Depression
Interventions
Quetiapine XR, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
10 Years to 17 Years
Enrollment
193 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
31
States / cities
Dothan, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 28 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2014 · Synced Oct 2, 2026, 3:26 PM EDT
Terminated Phase 4 Interventional Results available

Seroquel Alone Versus Seroquel With an SSRI for Depression With Psychotic Symptoms

NCT00955474
View directory record Official record
Conditions
Major Depressive Disorder With Psychotic Features
Interventions
Quetiapine, escitalopram, Sertraline, Citalopram
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 20, 2017 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 2 Interventional Results available

A Study of Quetiapine and Mirtazapine for the Treatment of Alcohol Dependency

NCT01165541
View directory record Official record
Conditions
Alcohol Dependence
Interventions
Mirtazapine, Quetiapine fumarate extended release (Quetiapine XR)
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
2
States / cities
Bedford, New Hampshire • Hanover, New Hampshire
Source: ClinicalTrials.gov public record
Updated Apr 9, 2018 · Synced Oct 2, 2026, 3:26 PM EDT
Completed Phase 4 Interventional Results available

Quetiapine for Bipolar Disorder and Alcohol Dependence

NCT00457197
View directory record Official record
Conditions
Bipolar Disorder, Alcohol Dependence
Interventions
Placebo, Quetiapine
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 25, 2025 · Synced Oct 2, 2026, 3:26 PM EDT