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Identification and Treatment of the Liability to Develop Schizophrenia
This study is currently recruiting participants.
Verified by Central South University, February 2006
Sponsors and Collaborators: Central South University
Janssen, LP
Information provided by: Central South University
ClinicalTrials.gov Identifier: NCT00305474
  Purpose

This study seeks to determine whether adult, non-psychotic, first-degree relatives of schizophrenic patients who show specific neurocognitive deficits and negative symptoms will show improvements in these areas following a 6-month, double-blind trial of a low dose (up to 2.0 mg) of risperidone.


Condition Intervention Phase
Schizophrenia
Drug: Risperidone
Phase IV

MedlinePlus related topics: Schizophrenia
Drug Information available for: Risperidone
U.S. FDA Resources
Study Type: Interventional
Study Design: Diagnostic, Randomized, Double-Blind, Placebo Control, Parallel Assignment, Efficacy Study

Further study details as provided by Central South University:

Primary Outcome Measures:
  • Cognitive function

Secondary Outcome Measures:
  • Negative Symptoms

Estimated Enrollment: 100
  Eligibility

Ages Eligible for Study:   19 Years to 59 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

Having at least one first-degree biological relative with schizophrenia and their age is between 19 and 59; desire to participate in a medication trial; is able to provide informed consent. Having moderate levels of negative symptoms, defined as 6 items rated 3 or higher on the Scale for the Assessment of Negative Symptoms (SANS). Scoring two or more standard deviations below normal in at least one of three cognitive domains: vigilance/working memory, long-term verbal memory, and executive functions. Scoring at least one standard deviation below normal in a second cognitive domain.

Exclusion Criteria:

IQ less than 80; formal education less than 10 years; history of psychotic disorders, history of treatment with an antipsychotic medication; a substance abuse diagnosis within 6 months of diagnosis; a head injury with documented loss of consciousness exceeding 5 minutes (or subsequent cognitive deficits); a history of neurologic disease or damage, a medical condition with significant cognitive sequelae, or a history of electroconvulsive treatment.

  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00305474

Contacts
Contact: Lingjiang Li, MD, PhD 011-86-731-555-0413 lilj9016@public.cs.hn.cn
Contact: Liwen Tan, MD, PhD 011-86-13874870034 gangbie7788@yahoo.com.cn

Locations
China, Hunan
Mental Health Institute Recruiting
Changsha, Hunan, China, 410011
Contact: Liwen Tan, MD, PhD     01186-13874870034     gangbie7788@yahoo.com.cn    
Principal Investigator: Liwen Tan, MD, PhD            
Sub-Investigator: Ning Ma, MD            
Sub-Investigator: You Yin, MD            
Sub-Investigator: Wenjuan Yu, MD            
Sub-Investigator: Feng Wan, MD            
Sub-Investigator: Yan Zhang, MD, MS            
Sponsors and Collaborators
Central South University
Janssen, LP
Investigators
Principal Investigator: Ming T. Tsuang, MD, PhD UCSD
Study Director: William Stone, PhD Harvard University
Study Chair: Lingjiang Li, MD, PhD Central South Unversity
  More Information

Study ID Numbers: XYMHI001
Study First Received: March 21, 2006
Last Updated: March 21, 2006
ClinicalTrials.gov Identifier: NCT00305474  
Health Authority: China: Ministry of Health

Keywords provided by Central South University:
Negative symptoms
neuropsychological deficits
Cognitive function
diagnostic
prevention

Study placed in the following topic categories:
Schizophrenia
Dopamine
Mental Disorders
Risperidone
Psychotic Disorders
Serotonin
Schizophrenia and Disorders with Psychotic Features

Additional relevant MeSH terms:
Neurotransmitter Agents
Tranquilizing Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Psychotropic Drugs
Central Nervous System Depressants
Dopamine Antagonists
Antipsychotic Agents
Pharmacologic Actions
Serotonin Antagonists
Serotonin Agents
Therapeutic Uses
Dopamine Agents
Central Nervous System Agents

ClinicalTrials.gov processed this record on January 16, 2009