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Completed Phase 2 Interventional Results available

Efficacy of Pimozide Augmentation for Clozapine Partial Response

ClinicalTrials.gov ID: NCT00374244

Public ClinicalTrials.gov record NCT00374244. 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 Oct 17, 2026, 2:16 AM EDT

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

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is a 12 week outpatient study for patients with schizophrenia who are on Clozapine, but continue to experience symptoms. The purpose of this project is to find out if small doses of pimozide (an antipsychotic medication, taken by mouth) will be helpful in reducing symptoms (such as hearing voices, having trouble in organizing your thoughts, lack of interest in life events and social activities), compared to placebo (an inactive substance, "sugar pill"), when added to clozapine in patients with schizophrenia. The participant will be asked to come in once a week to meet with the research staff and study doctor. The participant will continue to see your regular clinician during this study for all normal appointments. The participant will remain on your current medications throughout the study. During the study you will be randomly selected to be put on a small dose of Pimozide or placebo.

Study identification

NCT ID
NCT00374244
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Yale University
Other
Enrollment
28 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
18 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
Jan 2004 (Type not available)
Primary completion
Jun 2011 (Actual)
Completion
Jun 2011 (Actual)
Last update posted
Mar 4, 2016

2004 – 2011

United States locations

U.S. sites
2
U.S. states
1
U.S. cities
2
Facility City State ZIP Site status
Connecticut Mental Health Center New Haven Connecticut 06508 —
VA Connecticut Healthcare System West Haven Connecticut 06516 —

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 NCT00374244, 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 4, 2016 · Synced Oct 17, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00374244 live on ClinicalTrials.gov.

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