Efficacy and Safety of Quetiapine Fumarate Sustained Release (SEROQUEL SR) in the Treatment of Major Depressive Disorders
Public ClinicalTrials.gov record NCT00326144. 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.
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, 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
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
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.
Study identification
- NCT ID
- NCT00326144
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 310 participants
Conditions and interventions
Conditions
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
- May 2007 (Actual)
- Last update posted
- Mar 25, 2009
2006 – 2007
United States locations
- U.S. sites
- 34
- U.S. states
- 20
- U.S. cities
- 34
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Research Site | Phoenix | Arizona | — | — |
| Research Site | Little Rock | Arkansas | — | — |
| Research Site | Anaheim | California | — | — |
| Research Site | El Centro | California | — | — |
| Research Site | Garden Grove | California | — | — |
| Research Site | National City | California | — | — |
| Research Site | Riverside | California | — | — |
| Research Site | Hartford | Connecticut | — | — |
| Research Site | Wilmington | Delaware | — | — |
| Research Site | Altamonte Springs | Florida | — | — |
| Research Site | DeLand | Florida | — | — |
| Research Site | Maitland | Florida | — | — |
| Research Site | New Port Richey | Florida | — | — |
| Research Site | Atlanta | Georgia | — | — |
| Research Site | Decatur | Georgia | — | — |
| Research Site | Roswell | Georgia | — | — |
| Research Site | Naperville | Illinois | — | — |
| Research Site | Indianapolis | Indiana | — | — |
| Research Site | Lafayette | Indiana | — | — |
| Research Site | Owensboro | Kentucky | — | — |
| Research Site | New Orleans | Louisiana | — | — |
| Research Site | Braintree | Massachusetts | — | — |
| Research Site | Cambridge | Massachusetts | — | — |
| Research Site | Pittsfield | Massachusetts | — | — |
| Research Site | Minneapolis | Minnesota | — | — |
| Research Site | St Louis | Missouri | — | — |
| Research SIte | Staten Island | New York | — | — |
| Research Site | Avon Lake | Ohio | — | — |
| Research Site | Cincinnati | Ohio | — | — |
| Research Site | Oklahoma City | Oklahoma | — | — |
| Research Site | Allentown | Pennsylvania | — | — |
| Research Site | Memphis | Tennessee | — | — |
| Research Site | DeSoto | Texas | — | — |
| Research Site | Houston | Texas | — | — |
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 NCT00326144, 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 25, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00326144 live on ClinicalTrials.gov.