Study Evaluating Safety and Tolerability of Vabicaserin in Patients With Sudden Worsening of Schizophrenia

January 28, 2013 updated by: Wyeth is now a wholly owned subsidiary of Pfizer

A Randomized, Double-Blind, Risperidone-Reference, Parallel-Group, Safety, and Tolerability Study of Vabicaserin (SCA-136) in Japanese Subjects With Acute Exacerbation of Schizophrenia

This study will evaluate the clinical safety and tolerability of vabicaserin in Japanese subjects that have a sudden worsening of their symptoms of schizophrenia. The study will also assess the efficacy of vabicaserin and compare it to risperidone.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Study Type

Interventional

Phase

  • Phase 2

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

20 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male and female subjects between >=20 and =<65 years of age
  • Current diagnosis and DSM-IV-TR diagnosis of schizophrenia type (295.10, 295.30 and 295.90)
  • Total PANSS score >=70 and =< 120

Exclusion Criteria:

  • Subjects who are hospitalized against their will
  • Current Axis I primary psychiatric diagnosis other than schizophrenia
  • A score of 3 on CDSS question 8 which pertains to suicide

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
Lowest dose
Drug: SCA-136 50mg/day
Experimental: 2
Middle dose
Drug: SCA-136 150 mg/day
Experimental: 3
Highest dose
Drug: SCA-136 300mg/day
Active Comparator: 4
Positive Control
Drug: Risperidone 4mg/day

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Positive and Negative Syndrome Scale PANSS
Time Frame: 6 week
6 week

Secondary Outcome Measures

Outcome Measure
Time Frame
Calgary Depression Scale for Schizophrenia CDSS
Time Frame: 6 week
6 week

Collaborators and Investigators

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

Sponsor

Wyeth is now a wholly owned subsidiary of Pfizer

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

November 1, 2008

Primary Completion (Anticipated)

July 1, 2009

Study Completion (Anticipated)

July 1, 2009

Study Registration Dates

First Submitted

October 7, 2008

First Submitted That Met QC Criteria

October 7, 2008

First Posted (Estimate)

October 8, 2008

Study Record Updates

Last Update Posted (Estimate)

January 29, 2013

Last Update Submitted That Met QC Criteria

January 28, 2013

Last Verified

January 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 3153B1-2208

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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Locations

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