ClinicalTrials.Veeva

Menu

Antipsychotic Response in Schizophrenia

US Department of Veterans Affairs (VA) logo

US Department of Veterans Affairs (VA)

Status and phase

Completed
Phase 4

Conditions

Schizophrenia

Treatments

Drug: Risperidone
Drug: Quetiapine
Drug: Olanzapine

Study type

Interventional

Funder types

Other U.S. Federal agency

Identifiers

NCT00018668
MHBS-041-00S

Details and patient eligibility

About

Motor slowing is a hallmark, clinical sign in mental illness. Slowness can be related to a specific disease process, as in negative schizophrenia or depression or it can be the result of medications used to treat forms of mental illness. Prior research has lead to a novel instrumental approach for distinguishing subtypes of motor slowing - one type related to cognitive processes and another related to parkinsonism. The purpose of this study is to test whether new medications used to treat schizophrenia improve the cognitive or parkinsonian components of motor slowing. Patients will be studied in the laboratory before and 8-weeks after starting a new antipsychotic. The n of this study = 60 patients. The results of this study will improve our understanding of the complex interactions between cognitive processing and motor behavior in patients with psychotic illnesses and how drugs work to treat these problems.

Sex

All

Ages

21 to 70 years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

Schizophrenia diagnosis currently treated with conventional antipsychotic willing to be switched to an atypical antipsychotic.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

Trial contacts and locations

1

Loading...

Data sourced from clinicaltrials.gov

Clinical trials

Find clinical trialsTrials by location
© Copyright 2026 Veeva Systems