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Completed Phase 3 Interventional

New Antipsychotic Strategies: Quetiapine and Risperidone vs. Fluphenazine in Treatment Resistant Schizophrenia

ClinicalTrials.gov ID: NCT00161018

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This page only displays public information reproduced from the official ClinicalTrials.gov record NCT00161018. 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, 6:35 AM EST

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Brief summary

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

The purpose of this study is to: 1. Evaluate the efficacy and safety of the new antipsychotics, quetiapine (300-500mg/day) and risperidone (3-4mg/day) compared to each other and to fluphenazine (10-15mg/day), a high potency typical antipsychotic in patients who meet the DSM IV criteria for schizophrenia. 2. To evaluate the efficacy and safety of quetiapine (1200mg/day) in patients who have not responded to conventional and newer antipsychotics. 3. To evaluate the effectiveness of quetiapine (300-500mg/day), and risperidone (3-5mg/day) compared to each other and fluphenazine (10-15mg/day) in the treatment of hostility and aggression in treatment-resistant schizophrenic patients. 4. To evaluate the effectiveness of quetiapine (300-500mg/day) and risperidone (3-5mg/day) compared to each other and fluphenazine (10-15mg/day) on rates of discharge, quality of life, and independent living skills. 5. To assess prolactin levels and to evaluate any relationship with sexual dysfunction and menstrual irregularities. 6. To evaluate the possible differential impact of treatment conditions on cognitive functioning including measures of attention, motor speed, problem solving, verbal and visual memory, and verbal processing speed. 7. To measure changes in weight and health consequences associated with weight changes.

Study identification

NCT ID
NCT00161018
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Enrollment
150 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
Nov 2003 (Actual)
Primary completion
Nov 2004 (Actual)
Completion
Nov 2004 (Actual)
Last update posted
Aug 19, 2019

2003 – 2004

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Maryland Psychiatric Research Center Catonsville Maryland 21228 —

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 NCT00161018, 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 Aug 19, 2019 · Synced Nov 15, 2026

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