A Comparison of Seroquel vs. Risperidone in Schizophrenia

Status

Completed

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT00034905

Enrollment

Unknown

Registered

2002-05-03

Start date

2001-07-31

Completion date

2002-09-30

Last updated

2013-01-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Schizophrenia

Brief summary

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.

Interventions

DRUGquetiapine fumarate vs risperidone

Study design

Primary purpose

TREATMENT

Eligibility

Sex/Gender

ALL

Age

18 Years to 65 Years

Healthy volunteers

Inclusion criteria

* Male / Female, 18-65 years old * Schizophrenia (as per DSM IV)

Exclusion criteria

* Concurrent use of psychotropic medication * Does not fulfill moderately ill on CGI

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026