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Completed Phase 3 Interventional Results available

Long-Acting Injectable Risperidone in the Treatment of Schizophrenia

ClinicalTrials.gov ID: NCT00132314

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This page only displays public information reproduced from the official ClinicalTrials.gov record NCT00132314. It adds no medical advice, opinions, or eligibility judgments. The official record remains the source of truth for eligibility criteria, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Nov 15, 2026, 7:51 AM EST

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Official title

CSP #555 - Long-Acting Injectable Risperidone in the Treatment of Schizophrenia

Brief summary

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

In the proposed study 450 veterans with a primary diagnosis of schizophrenia who had at least one psychiatric hospitalization for schizophrenia in the previous 2 years would be randomly assigned at 16 VA medical centers to long-acting injectable risperidone or doctor's choice of oral antipsychotic medication (i.e., excluding other long-acting injectable medications, but not specifying any particular oral agents or dosages). Recruitment would take 27 months to complete, and the study would continue for a third year to allow 9 months of follow-up for the last patient recruited. All patients would be treated from the time of entry up to the end of the three-year study period. Follow-up assessments would continue quarterly. Treatments would not be blinded since giving placebo injections to the comparison group would interfere with the goal of comparing the acceptability of two different methods of medication administration. However, end points will be blindly rated.

Study identification

NCT ID
NCT00132314
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Enrollment
382 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
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
Sep 2006 (Type not available)
Primary completion
Sep 2009 (Actual)
Completion
Sep 2009 (Actual)
Last update posted
Dec 20, 2013

2006 – 2009

United States locations

U.S. sites
19
U.S. states
17
U.S. cities
19
Facility City State ZIP Site status
VA Medical Center, Tuscaloosa Tuscaloosa Alabama 35404 —
VA Medical Center, Long Beach Long Beach California 90822 —
VA Palo Alto Health Care System Palo Alto California 94304-1290 —
VA Connecticut Health Care System (West Haven) West Haven Connecticut 06516 —
VA Medical Center, Miami Miami Florida 33125 —
VA Medical Center, Augusta Augusta Georgia 30904 —
Jesse Brown VAMC (WestSide Division) Chicago Illinois 60612 —
VA Medical Center, Jamaica Plain Campus Boston Massachusetts 02130 —
John D. Dingell VA Medical Center, Detroit Detroit Michigan 48201 —
VA Medical Center, Minneapolis Minneapolis Minnesota 55417 —
VA Medical Center, Kansas City MO Kansas City Missouri 64128 —
VA Medical Center, Omaha Omaha Nebraska 68105-1873 —
New Mexico VA Health Care System, Albuquerque Albuquerque New Mexico 87108-5153 —
New York Harbor HCS New York New York 10010 —
VA Medical Center, Cleveland Cleveland Ohio 44106 —
VA Medical Center, Philadelphia Philadelphia Pennsylvania 19104 —
Michael E. DeBakey VA Medical Center (152) Houston Texas 77030 —
Central Texas Veterans Health Care System - Waco Waco Texas 76711 —
VA Puget Sound Health Care System, Seattle Seattle Washington 98108 —

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 NCT00132314, 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 Dec 20, 2013 · Synced Nov 15, 2026

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