# A Comparison of Seroquel vs. Risperidone in Schizophrenia

> **NCT00034905** · PHASE4 · COMPLETED · sponsor: **AstraZeneca**

## Conditions studied

- Schizophrenia

## Interventions

- **DRUG:** quetiapine fumarate vs risperidone

## Key facts

- **NCT ID:** NCT00034905
- **Lead sponsor:** AstraZeneca
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2001-07
- **Primary completion:** 2002-09
- **Final completion:** 2002-09
- **Target enrollment:** — (—)
- **Last updated:** 2013-01-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00034905

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00034905, "A Comparison of Seroquel vs. Risperidone in Schizophrenia". Retrieved via AI Analytics 2026-06-22 from https://api.ai-analytics.org/clinical/NCT00034905. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*