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A Study of the Effect of RO4917838 on Biomarker Measures of Cognitive Dysfunction in Patients With Schizophrenia and Schizoaffective Disorder

This study has been completed.
Information provided by (Responsible Party):
Hoffmann-La Roche Identifier:
First received: May 4, 2010
Last updated: March 2, 2015
Last verified: March 2015

This randomized, double-blind, placebo-controlled parallel group study will assess the effect on biomarkers measures of cognitive dysfunction, the clinical efficacy and safety of RO4917383 in patients with schizophrenia and schizoaffective disorder. Patients will be randomized to receive either RO4917383 (10mg daily orally) or placebo for 6 weeks, in addition to their stable antipsychotic medication. Anticipated time on study treatment is 6 weeks.

Condition Intervention Phase
Schizophrenia, Schizoaffective Disorder
Drug: RO4917838
Drug: placebo
Drug: standard antipsychotic therapy
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Pharmacodynamics Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Official Title: A Randomized, Double-blind, Placebo-controlled Parallel Arm Study of the Effect of RO4917838 on Biomarker Measures of Cognitive Dysfunction in Schizophrenia and Schizoaffective Disorder

Resource links provided by NLM:

Further study details as provided by Hoffmann-La Roche:

Primary Outcome Measures:
  • Change in biomarker measures of cognitive dysfunction [ Time Frame: after 6 weeks of treatment ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Change in biomarker measures of cognitive dysfunction [ Time Frame: after 1 week of treatment ] [ Designated as safety issue: No ]
  • Predictive value of biomarker changes after 1 week for biomarker responses after 6 weeks [ Time Frame: 1 and 6 weeks ] [ Designated as safety issue: No ]
  • Predictive value of biomarker changes on changes in symptoms [ Time Frame: 1 and 6 weeks ] [ Designated as safety issue: No ]
  • Clinical efficacy (PANSS, NSA, CDS, CGI scales, GAF, MATRICS battery) [ Time Frame: weeks 1, 3 and 6 ] [ Designated as safety issue: No ]

Enrollment: 31
Study Start Date: November 2010
Study Completion Date: February 2014
Primary Completion Date: February 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: A Drug: RO4917838
10mg daily orally for 6 weeks
Drug: standard antipsychotic therapy
as prescribed
Placebo Comparator: B Drug: placebo
orally daily for 6 weeks
Drug: standard antipsychotic therapy
as prescribed


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

Inclusion Criteria:

  • adult patients, 18-65 years of age
  • diagnosis of schizophrenia or schizoaffective disorder (based on screening tests)
  • medically stable for 1 month and psychiatrically stable without symptom acerbation for 6 weeks prior to baseline
  • on stable treatment with a maximum of 2 antipsychotics

Exclusion Criteria:

  • change in regimen for any psychotropic or sleep medication within 1 month
  • treatment with >1 mood stabilizer or antidepressant
  • use of clozapine within 2 months
  • bipolar disorder, or more than mild anxiety disorder
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01116830

United States, New York
Orangeburg, New York, United States, 10962
Sponsors and Collaborators
Hoffmann-La Roche
Study Director: Clinical Trials Hoffmann-La Roche
  More Information

No publications provided

Responsible Party: Hoffmann-La Roche Identifier: NCT01116830     History of Changes
Other Study ID Numbers: BP22445
Study First Received: May 4, 2010
Last Updated: March 2, 2015
Health Authority: United States: Food and Drug Administration

Additional relevant MeSH terms:
Psychotic Disorders
Mental Disorders
Schizophrenia and Disorders with Psychotic Features processed this record on March 03, 2015