Safety & Efficacy Study of Quetiapine Fumarate (SEROQUEL®) vs. Placebo in Major Depressive Disorder
Public ClinicalTrials.gov record NCT00320268. 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®) as Monotherapy in the Treatment of Patients With MDD
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study is to evaluate that (SEROQUEL®) quetiapine sustained-release is efficacious and safe in the treatment of patients with MDD.
Study identification
- NCT ID
- NCT00320268
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 600 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
- Mar 31, 2006
- Primary completion
- Not listed
- Completion
- Apr 30, 2007
- Last update posted
- Mar 24, 2009
2006 – 2007
United States locations
- U.S. sites
- 37
- U.S. states
- 26
- U.S. cities
- 37
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Research Site | Little Rock | Arkansas | — | — |
| Research Site | Newport Beach | California | — | — |
| Research Site | Northridge | California | — | — |
| Research Site | Oceanside | California | — | — |
| Research Site | Santa Ana | California | — | — |
| Research Site | Denver | Colorado | — | — |
| Research Site | Norwich | Connecticut | — | — |
| Research Site | Washington D.C. | District of Columbia | — | — |
| Research Site | Jacksonville | Florida | — | — |
| Research Site | Winter Park | Florida | — | — |
| Research Site | Atlanta | Georgia | — | — |
| Research Site | Smyrna | Georgia | — | — |
| Research Site | Eagle | Idaho | — | — |
| Research Site | Oak Brook | Illinois | — | — |
| Research Site | Wichita | Kansas | — | — |
| Research Site | Shreveport | Louisiana | — | — |
| Research Site | Farmington Hills | Michigan | — | — |
| Research Site | St Louis | Missouri | — | — |
| Research Site | Las Vegas | Nevada | — | — |
| Research Site | Cherry Hill | New Jersey | — | — |
| Research Site | Clementon | New Jersey | — | — |
| Research Site | Brooklyn | New York | — | — |
| Research Site | New York | New York | — | — |
| Research Site | Staten Island | New York | — | — |
| Research Site | Raleigh | North Carolina | — | — |
| Research Site | Cincinnati | Ohio | — | — |
| Research Site | Tulsa | Oklahoma | — | — |
| Research Site | Portland | Oregon | — | — |
| Research Site | Norristown | Pennsylvania | — | — |
| Research Site | Memphis | Tennessee | — | — |
| Research Site | Austin | Texas | — | — |
| Research Site | Dallas | Texas | — | — |
| Research Site | San Antonio | Texas | — | — |
| Research Site | Bellevue | Washington | — | — |
| Research Site | Seattle | Washington | — | — |
| Research Site | Charleston | West Virginia | — | — |
| Research Site | Brown Deer | Wisconsin | — | — |
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 NCT00320268, 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 24, 2009 · Synced Sep 27, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00320268 live on ClinicalTrials.gov.