Efficacy of Quetiapine in the Treatment of Patients With Schizophrenia and a Comorbid Substance Use Disorder
Public ClinicalTrials.gov record NCT00156715. 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
Efficacy of Quetiapine in Treating Patients With Active Substance Use Disorder and Schizophrenia
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study is to examine the efficacy of quetiapine (Seroquel) in reducing substance use in persons diagnosed with schizophrenia. The primary hypothesis is that quetiapine treatment will be associated with a decrease in substance use.
Study identification
- NCT ID
- NCT00156715
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 4
- Enrollment
- 23 participants
Conditions and interventions
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
- Feb 29, 2004
- Primary completion
- Aug 31, 2006
- Completion
- Sep 30, 2008
- Last update posted
- Mar 13, 2018
2004 – 2008
United States locations
- U.S. sites
- 4
- U.S. states
- 2
- U.S. cities
- 3
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Medical College of Georgia | Augusta | Georgia | 30912 | — |
| Dartmouth-Hitchcock Medical Center | Lebanon | New Hampshire | 03756 | — |
| West Central Behavioral Health | Lebanon | New Hampshire | 03766 | — |
| Mental Health Center of Greater Manchester | Manchester | New Hampshire | 03101 | — |
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 NCT00156715, 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 13, 2018 · Synced Sep 3, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00156715 live on ClinicalTrials.gov.