Identification and Treatment of the Liability to Develop Schizophrenia

June 23, 2009 updated by: Central South University
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.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

100

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Hunan
      • Changsha, Hunan, China, 410011
        • Recruiting
        • Mental Health Institute
        • Contact:
        • 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

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

19 years to 59 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

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.
  • A history of electroconvulsive treatment.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Neuropsychological - cognitive measures
Time Frame: 2003-2010
2003-2010

Secondary Outcome Measures

Outcome Measure
Time Frame
Psychiatric Symptoms
Time Frame: 2003-2010
2003-2010

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Central South University

Collaborators

Ortho-McNeil Janssen Scientific Affairs, LLC

Investigators

  • Principal Investigator: William Stone, PhD, Harvard Medical School (HMS and HSDM)
  • Study Chair: Lingjiang Li, MD, PhD, Central South Unversity

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

December 1, 2003

Primary Completion (Anticipated)

January 1, 2010

Study Registration Dates

First Submitted

March 21, 2006

First Submitted That Met QC Criteria

March 21, 2006

First Posted (Estimate)

March 22, 2006

Study Record Updates

Last Update Posted (Estimate)

June 24, 2009

Last Update Submitted That Met QC Criteria

June 23, 2009

Last Verified

June 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • XYMHI001

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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