Serotonin 1A Agonists and Cognition in Schizophrenia

Examines cognitive functioning in patients with schizophrenia or schizoaffective disorder who have been treated with antipsychotic medications. Patients will be assigned to take active medication (Buspar)or placebo along with their prescribed antispycotic medication for six weeks. Patients' memory and problem-solving ability will be tested before and after medication...

Date First Received: September 12, 2005

Last Updated: December 22, 2007

Verified by: Vanderbilt University, December 2007

Clinical Trial Phase: Phase 3 | Start Date: January 2003

Overall Status: Completed

Estimated Enrollment: 60

Brief Summary

Official Title: “Serotonin 1A Agonists and Cognition in Schizophrenia”

Condition Keyword(s):

Examines cognitive functioning in patients with schizophrenia or schizoaffective disorder who have been treated with antipsychotic medications. Patients will be assigned to take active medication (Buspar)or placebo along with their prescribed antispycotic medication for six weeks. Patients' memory and problem-solving ability will be tested before and after medication.

Study Type: Interventional

Study Design: Treatment, Randomized, Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Placebo Control, Parallel Assignment, Efficacy Study

Study Primary Completion Date: October 2004

Detailed Clinical Trial Description

Examines cognitive functioning in patients with schizophrenia or schizoaffective disorder who have been treated with olanzapine or risperidone for at least three months randomized to receive adjunctive treatment with a 5-HT1A agonist (buspirone, 15-30 mg/day)or placebo.

Intervention(s) in this Clinical Trial

  • Drug: adjunctive treatment with buspirone
    • buspirone 15-30 mg qd
  • Drug: placebo
    • placebo

Arms, Groups and Cohorts in this Clinical Trial

  • Active Comparator: 1
    • buspirone 15-30 mg qd
  • Placebo Comparator: 2
    • placebo

Outcome Measures for this Clinical Trial

Primary Measures

  • This study will examine the effect on cognition of the addition of buspirone compared with addition of a sugar pill to patients treated with olanzapine or risperidone
    • Time Frame: six weeks
      Safety Issue?: No

Criteria for Participation in this Clinical Trial

Inclusion Criteria:

  • Subjects must meet all of the following criteria to be eligible for participation in the current research study.
  • 1. Subjects will be males and females between 18-65 years of age;
  • 2. Subjects will have a definite diagnosis by DSM-IV criteria for Schizophrenia or Schizoaffective Disorder;
  • 3. The subjects or their legal guardian must sign the informed consent;
  • 4. Subjects currently being treated with olanzapine or risperidone for a duration of at least 3 months

Exclusion Criteria:

  • 1. Subjects who are pregnant or lactating
  • 2. Subjects who have brain damage and/or neurological disorders
  • 3. Subjects who have current substance dependence
  • 4. Subjects unable to provide informed consent

Gender Eligibility for this Clinical Trial: Both

Minimum Age for this Clinical Trial: 18 Years

Maximum Age for this Clinical Trial: 65 Years

Are Healthy Volunteers Accepted for this Clinical Trial?: No

Clinical Trial Sponsor Information

Lead Sponsor: Vanderbilt University

Overall Clinical Trial Officials and Contacts

Herbert Y Meltzer, M.D. Principal Investigator Vanderbilt University  

Additional Information

Information obtained from ClinicalTrials.gov on August 29, 2008

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00178971

Study ID Number: 020724

ClinicalTrials.gov Identifier: NCT00178971

Health Authority: United States: Food and Drug Administration

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