Study Comparing Bifeprunox to Risperidone in Treatment of Outpatients With Schizophrenia With Weight as Primary Endpoint

This study has been terminated.
Solvay Pharmaceuticals
Information provided by:
Wyeth is now a wholly owned subsidiary of Pfizer Identifier:
First received: August 17, 2006
Last updated: February 7, 2013
Last verified: April 2008
The purpose of this study is to determine the effect of bifeprunox or risperidone on the body weight of patients with schizophrenia.

Condition Intervention Phase
Drug: bifeprunox
Drug: risperidone
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Multicenter, Randomized, Double-blind, Parallel-group Fixed-dose Study of the Effect on Weight of Bifeprunox Versus Risperidone in the Treatment of Outpatients With Schizophrenia.

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Further study details as provided by Wyeth is now a wholly owned subsidiary of Pfizer:

Primary Outcome Measures:
  • The primary analysis will be the change from baseline on body weight at the final evaluation. [ Time Frame: 8 weeks ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:
  • Secondary outcomes include: Change from baseline in triglyceride level, Change from baseline in waist circumference, and Change from baseline in total Positive and Negative Syndrome Scale (PANSS) score. [ Time Frame: 8 weeks ] [ Designated as safety issue: Yes ]

Estimated Enrollment: 400
Study Start Date: November 2006
Study Completion Date: March 2008
Primary Completion Date: March 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: A Drug: bifeprunox
.25mg titrate up to 20mg/day (week 1) then 30mg/day (weeks 2-8)
Active Comparator: B Drug: risperidone
4mg, QD, 8 week treatment


Ages Eligible for Study:   18 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion criteria:

  • Current treatment of at least 3 months with risperidone.
  • Primary diagnosis of schizophrenia.
  • Total Positive and Negative Symptoms Scale (PANSS) score < or = 70 at screening and baseline.

Exclusion criteria:

  • Psychiatric diagnosis other than schizophrenia as assessed by the modified Mini International Neuropsychiatric Interview (MINI) and considered by the investigator to be the primary psychiatric diagnosis.
  • History or presence of clinically significant cardiovascular, endocrine, hepatic, renal or other medical disease that might be detrimental to the subject or confound the study.
  • History of any suicide attempt within 3 years of day 1 or significant immediate risk of violence or suicidality.
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Please refer to this study by its identifier: NCT00366704

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Sponsors and Collaborators
Wyeth is now a wholly owned subsidiary of Pfizer
Solvay Pharmaceuticals
Study Director: Medical Monitor Wyeth is now a wholly owned subsidiary of Pfizer
  More Information

No publications provided

Responsible Party: Wyeth (Registry Contact: Clinical Trial Registry Specialist), Wyeth Identifier: NCT00366704     History of Changes
Other Study ID Numbers: 3168A1-313  B3101009 
Study First Received: August 17, 2006
Last Updated: February 7, 2013
Health Authority: Colombia: INVIMA Instituto Nacional de Vigilancia de Medicamentos y Alimentos
Colombia: Institutional Review Board
Peru: General Directorate of Pharmaceuticals, Devices, and Drugs
United States: Food and Drug Administration

Keywords provided by Wyeth is now a wholly owned subsidiary of Pfizer:

Additional relevant MeSH terms:
Mental Disorders
Schizophrenia and Disorders with Psychotic Features
Antipsychotic Agents
Central Nervous System Agents
Central Nervous System Depressants
Dopamine Agents
Dopamine Antagonists
Molecular Mechanisms of Pharmacological Action
Neurotransmitter Agents
Pharmacologic Actions
Physiological Effects of Drugs
Psychotropic Drugs
Serotonin Agents
Serotonin Antagonists
Therapeutic Uses
Tranquilizing Agents processed this record on February 08, 2016