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Completed Phase 4 Interventional

Effectiveness of Clozapine Versus Olanzapine for Treatment-resistant Schizophrenia

ClinicalTrials.gov ID: NCT00169065

Public ClinicalTrials.gov record NCT00169065. 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.

ClinicalTrials.gov public records Last synced Jul 21, 2026, 12:08 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Clozapine vs. Olanzapine: An Effectiveness Study

Study identification

NCT ID
NCT00169065
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Lead sponsor
Harvard Medical School (HMS and HSDM)
Other
Enrollment
38 participants

Conditions and interventions

Conditions

Interventions

  • Clozapine Drug
  • Olanzapine Drug

Drug

Eligibility (public fields only)

Age range
20 Years to 60 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 31, 1998
Primary completion
May 31, 2002
Completion
May 31, 2002
Last update posted
Apr 6, 2015

1998 – 2002

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Commonwealth Research Center Jamaica Plain Massachusetts 02130

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 NCT00169065, 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 Apr 6, 2015 · Synced Jul 21, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00169065 live on ClinicalTrials.gov.

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