A Comparison of Seroquel vs. Risperidone in Schizophrenia
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This page only displays public information reproduced from the official ClinicalTrials.gov record NCT00034905. It adds no medical advice, opinions, or eligibility judgments. The official record remains the source of truth for eligibility criteria, enrollment, and contact information.
All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study is to show equal efficacy of both quetiapine and risperidone in subjects treated with study medication for up to 8 weeks.
Study identification
- NCT ID
- NCT00034905
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 4
- Enrollment
- Not listed
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
- Jul 2001 (Type not available)
- Primary completion
- Sep 2002 (Actual)
- Completion
- Sep 2002 (Actual)
- Last update posted
- Jan 4, 2013
2001 – 2002
United States locations
- U.S. sites
- 64
- U.S. states
- 28
- U.S. cities
- 64
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Not listed | Birmingham | Alabama | — | — |
| Not listed | Phoenix | Arizona | — | — |
| Not listed | Anaheim | California | — | — |
| Not listed | Cerritos | California | — | — |
| Not listed | Chula Vista | California | — | — |
| Not listed | Glendale | California | — | — |
| Not listed | Hawthorne | California | — | — |
| Not listed | Long Beach | California | — | — |
| Not listed | San Diego | California | — | — |
| Not listed | Santa Ana | California | — | — |
| Not listed | Torrance | California | — | — |
| Not listed | Farmington | Connecticut | — | — |
| Not listed | New Haven | Connecticut | — | — |
| Not listed | Washington D.C. | District of Columbia | — | — |
| Not listed | Miami | Florida | — | — |
| Not listed | Miami Beach | Florida | — | — |
| Not listed | North Miami | Florida | — | — |
| Not listed | Winter Park | Florida | — | — |
| Not listed | Atlanta | Georgia | — | — |
| Not listed | Hoffman Estates | Illinois | — | — |
| Not listed | Prairie Village | Kansas | — | — |
| Not listed | Wichita | Kansas | — | — |
| Not listed | New Orleans | Louisiana | — | — |
| Not listed | Shreveport | Louisiana | — | — |
| Not listed | Baltimore | Maryland | — | — |
| Not listed | Boston | Massachusetts | — | — |
| Not listed | Worcester | Massachusetts | — | — |
| Not listed | Ann Arbor | Michigan | — | — |
| Not listed | New Baltimore | Michigan | — | — |
| Not listed | Kansas City | Missouri | — | — |
| Not listed | St Louis | Missouri | — | — |
| Not listed | Reno | Nevada | — | — |
| Not listed | Clementon | New Jersey | — | — |
| Not listed | Lyons | New Jersey | — | — |
| Not listed | Summit | New Jersey | — | — |
| Not listed | Albuquerque | New Mexico | — | — |
| Not listed | Holliswood | New York | — | — |
| Not listed | Montrose | New York | — | — |
| Not listed | New York | New York | — | — |
| Not listed | Oceanside | New York | — | — |
| Not listed | The Bronx | New York | — | — |
| Not listed | White Plains | New York | — | — |
| Not listed | Butner | North Carolina | — | — |
| Not listed | Beachwood | Ohio | — | — |
| Not listed | Chagrin Falls | Ohio | — | — |
| Not listed | Cincinnati | Ohio | — | — |
| Not listed | Columbus | Ohio | — | — |
| Not listed | Oklahoma City | Oklahoma | — | — |
| Not listed | Media | Pennsylvania | — | — |
| Not listed | Pittsburgh | Pennsylvania | — | — |
| Not listed | Memphis | Tennessee | — | — |
| Not listed | Nashville | Tennessee | — | — |
| Not listed | Austin | Texas | — | — |
| Not listed | Houston | Texas | — | — |
| Not listed | Terrell | Texas | — | — |
| Not listed | Waco | Texas | — | — |
| Not listed | Salt Lake City | Utah | — | — |
| Not listed | Falls Church | Virginia | — | — |
| Not listed | Richmond | Virginia | — | — |
| Not listed | Virginia Beach | Virginia | — | — |
| Not listed | Kirkland | Washington | — | — |
| Not listed | Tacoma | Washington | — | — |
| Not listed | Vancouver | Washington | — | — |
| Not listed | West Allis | 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 NCT00034905, 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 Jan 4, 2013 · Synced Nov 15, 2026
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