Antipsychotic Response in Schizophrenia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00018668
Recruitment Status : Completed
First Posted : July 5, 2001
Last Update Posted : January 21, 2009
Information provided by:
VA Office of Research and Development

Brief Summary:
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.

Condition or disease Intervention/treatment Phase
Schizophrenia Drug: Risperidone Drug: Olanzapine Drug: Quetiapine Phase 4

Study Type : Interventional  (Clinical Trial)
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Psychopharmacologic Aspects of Motor Slowing in Schizophrenia
Study Start Date : October 2000
Study Completion Date : September 2004

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Schizophrenia
U.S. FDA Resources

Information from the National Library of Medicine

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Ages Eligible for Study:   21 Years to 70 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Schizophrenia diagnosis currently treated with conventional antipsychotic willing to be switched to an atypical antipsychotic.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00018668

United States, California
Department of Veterans Affairs
San Diego, California, United States, 92161
Sponsors and Collaborators
VA Office of Research and Development Identifier: NCT00018668     History of Changes
Other Study ID Numbers: MHBS-041-00S
First Posted: July 5, 2001    Key Record Dates
Last Update Posted: January 21, 2009
Last Verified: December 2004

Keywords provided by VA Office of Research and Development:
motor retardation

Additional relevant MeSH terms:
Schizophrenia Spectrum and Other Psychotic Disorders
Mental Disorders
Antipsychotic Agents
Quetiapine Fumarate
Serotonin Antagonists
Serotonin Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Tranquilizing Agents
Central Nervous System Depressants
Psychotropic Drugs
Dopamine Antagonists
Dopamine Agents
Autonomic Agents
Peripheral Nervous System Agents
Gastrointestinal Agents
Serotonin Uptake Inhibitors
Neurotransmitter Uptake Inhibitors
Membrane Transport Modulators