# Efficacy and Safety Study of Seroquel SR in the Treatment of Major Depressive Disorder

> **NCT00388973** · PHASE3 · COMPLETED · sponsor: **AstraZeneca** · enrollment: 338 (actual)

## Conditions studied

- Major Depressive Disorder

## Interventions

- **DRUG:** Quetiapine

## Key facts

- **NCT ID:** NCT00388973
- **Lead sponsor:** AstraZeneca
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2006-09
- **Primary completion:** 2007-12
- **Final completion:** 2007-12
- **Target enrollment:** 338 (ACTUAL)
- **Last updated:** 2010-04-01


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00388973

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00388973, "Efficacy and Safety Study of Seroquel SR in the Treatment of Major Depressive Disorder". Retrieved via AI Analytics 2026-07-20 from https://api.ai-analytics.org/clinical/NCT00388973. Licensed CC0.

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