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Completed Phase 3 Interventional

Safety & Efficacy Study of Quetiapine Fumarate (SEROQUEL®) vs. Placebo & Active Control in Generalized Anxiety Disorder

ClinicalTrials.gov ID: NCT00329446

Public ClinicalTrials.gov record NCT00329446. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 17, 2026, 6:45 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Multicenter, Randomized, Double-Blind, Parallel-Group, Placebo-Controlled, Active-Controlled Study of the Efficacy and Safety of Sustained-Release Quetiapine Fumarate (SEROQUEL®) Compared With Placebo in the Treatment of Generalized Anxiety Disorder

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to demonstrate that quetiapine SR (SEROQUEL®) is efficacious and safe in the acute treatment of patients with Generalized Anxiety Disorder. PLEASE NOTE: Seroquel SR and Seroquel XR refer to the same formulation. The SR designation was changed to XR after consultation with FDA.

Study identification

NCT ID
NCT00329446
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
AstraZeneca
Industry
Enrollment
800 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 65 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Apr 2006 (Type not available)
Primary completion
Not listed
Completion
Sep 2007 (Actual)
Last update posted
Mar 25, 2009

2006 – 2007

United States locations

U.S. sites
63
U.S. states
32
U.S. cities
63
Facility City State ZIP Site status
Research Site Birmingham Alabama — —
Research Site Scottsdale Arizona — —
Research Site Little Rock Arkansas — —
Research Site Beverly Hills California — —
Research Site Burbank California — —
Research Site La Mesa California — —
Research Site Orange California — —
Research Site Pasadena California — —
Research Site San Diego California — —
Research Site Sherman Oaks California — —
Research Site Upland California — —
Research Site Wildomar California — —
Research Site New Britain Connecticut — —
Research Site Washington D.C. District of Columbia — —
Research Site Boca Raton Florida — —
Research Site Bradenton Florida — —
Research Site DeLand Florida — —
Research Site Fort Lauderdale Florida — —
Research Site Fort Myers Florida — —
Research Site Jacksonville Florida — —
Research Site Maitland Florida — —
Research Site Miami Florida — —
Research Site Orlando Florida — —
Research Site Tampa Florida — —
Research Site West Palm Beach Florida — —
Research Site Edwardsville Illinois — —
Research Site Merrillville Indiana — —
Research Site Terre Haute Indiana — —
Research Site Newton Kansas — —
Research Site Prairie Village Kansas — —
Research Site Owensboro Kentucky — —
Research Site Lake Charles Louisiana — —
Research Site Baltimore Maryland — —
Research Site Boston Massachusetts — —
Research Site Haverhill Massachusetts — —
Research Site Okemos Michigan — —
Research Site Saint Paul Minnesota — —
Research Site St Louis Missouri — —
Research Site Kenilworth New Jersey — —
Research Site Princeton New Jersey — —
Research Site Toms River New Jersey — —
Research Site Albuquerque New Mexico — —
Research Site New York New York — —
Research Site Chapel Hill North Carolina — —
Research Site Cleveland Ohio — —
Research Site Dayton Ohio — —
Research Site Toledo Ohio — —
Research Site Oklahoma City Oklahoma — —
Research Site Eugene Oregon — —
Research Site Salem Oregon — —
Research Site Allentown Pennsylvania — —
Research Site Philadelphia Pennsylvania — —
Research Site Columbia South Carolina — —
Research Site Memphis Tennessee — —
Research Site Nashville Tennessee — —
Research Site Dallas Texas — —
Research Site Houston Texas — —
Research Site San Antonio Texas — —
Research Site Salt Lake City Utah — —
Research Site Richmond Virginia — —
Research Site Kirkland Washington — —
Research Site Spokane Washington — —
Research Site Morgantown West Virginia — —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00329446, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 25, 2009 · Synced Oct 17, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00329446 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →