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A Study of RO4917838 (Bitopertin) in Patients With Persistent, Predominant Negative Symptoms of Schizophrenia (WN25309)

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01192906
First Posted: September 1, 2010
Last Update Posted: November 2, 2016
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Hoffmann-La Roche
  Purpose
This multi-center, randomized, double blind, parallel-group, placebo-controlled study will evaluate the efficacy and safety of RO4917838 (bitopertin) in patients with persistent, predominant negative symptoms of schizophrenia. Patients, on stable treatment with antipsychotics, will be randomized to receive daily oral doses of RO4917838 or matching placebo for 52 weeks, followed by an optional treatment extension for up to 3 years.

Condition Intervention Phase
Schizophrenia Drug: Placebo Drug: bitopertin [RO4917838] Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: A Phase III, Multi-center, Randomized, 24 Week, Double-blind, Parallel-group, Placebo-controlled Study to Evaluate Efficacy and Safety of RO4917838 in Stable Patients With Persistent, Predominant Negative Symptoms of Schizophrenia Treated With Antipsychotics Followed by a 28 Week, Double-blind Treatment Period.

Resource links provided by NLM:


Further study details as provided by Hoffmann-La Roche:

Primary Outcome Measures:
  • Efficacy (PANSS negative symptoms factor score) [ Time Frame: Week 24 ]
  • Safety (incidence of adverse events) [ Time Frame: Week 24 ]

Enrollment: 624
Study Start Date: December 2010
Study Completion Date: July 2014
Primary Completion Date: July 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1 Drug: bitopertin [RO4917838]
Oral dose level 1, once a day for 52 weeks
Experimental: 2 Drug: bitopertin [RO4917838]
Oral dose level 2, once a day for 52 weeks
Placebo Comparator: 3 Drug: Placebo
Oral doses, once a day for 52 weeks

  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Adult patients, aged 18 years and above
  • Diagnosis of schizophrenia of paranoid, disorganized, residual, undifferentiated or catatonic subtype
  • Predominant negative symptoms
  • With the exception of clozapine, patients are on any of the available marketed atypical or typical antipsychotics (treatment with a maximum of two antipsychotics)

Exclusion Criteria:

  • Evidence that patient has clinically significant, uncontrolled and unstable disorder (e.g. cardiovascular, renal, hepatic disorder)
  • Body Mass Index (BMI) of <17 or >40 kg/m2
  • Depressive symptoms, defined as a score of 9 or greater on the Calgary Depression Rating Scale for Schizophrenia (CDSS)
  • A severity score of 3 or greater on the Parkinsonism item of the ESRS-A (Clinical Global Impression, Parkinsonism)
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01192906


  Show 113 Study Locations
Sponsors and Collaborators
Hoffmann-La Roche
Investigators
Study Director: Clinical Trials Hoffmann-La Roche
  More Information

Responsible Party: Hoffmann-La Roche
ClinicalTrials.gov Identifier: NCT01192906     History of Changes
Other Study ID Numbers: WN25309
2010-020467-21
First Submitted: August 30, 2010
First Posted: September 1, 2010
Last Update Posted: November 2, 2016
Last Verified: November 2016

Additional relevant MeSH terms:
Schizophrenia
Schizophrenia Spectrum and Other Psychotic Disorders
Mental Disorders