A Study to Assess the Effects of RO6889450 in Participants With Schizophrenia or Schizoaffective Disorder and Negative Symptoms



Status:Recruiting
Conditions:Schizophrenia, Psychiatric
Therapuetic Areas:Psychiatry / Psychology
Healthy:No
Age Range:18 - 55
Updated:3/10/2019
Start Date:December 4, 2018
End Date:July 2, 2020
Contact:Reference Study ID Number: BP40283 www.roche.com/about_roche/roche_worldwide.htm
Email:global-roche-genentech-trials@gene.com
Phone:888-662-6728 (U.S. and Canada)

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Phase 2, Randomized, Double-Blind, Placebo-Controlled Study to Assess the Effects of RO6889450 in Patients With Schizophrenia or Schizoaffective Disorder and Negative Symptoms

This study investigates the effects of RO6889450 on the negative symptoms associated with
schizophrenia and schizoaffective disorder.


Inclusion Criteria:

- Patients with a Diagnostic and Statistical Manual of Mental Disorders (DSM-5)
diagnosis of schizophrenia or schizoaffective disorder as confirmed by the Mini
International Neuropsychiatric Interview (MINI)

- Medically stable during the six months prior to study entry

- Outpatient with no hospitalization for worsening of schizophrenia or schizoaffective
disorder within six months prior to study entry

- PANSS negative symptom factor score of 18 or higher

- The following rating on items of the PANSS: (a) less than 5 on P1 (delusions), P3
(hallucinations), and P6 (suspiciousness/persecution); (b) less than 4 on P4
(excitement/hyperactivity), P7 (hostility), G8 (uncooperativeness), and G14 (poor
impulse control)

- Has an informant who is considered reliable by the Investigator

- Part B only: Stable treatment with a dopamine/serotonin (D2/5HT2A) antagonist or a D2
partial agonist for a minimum of 6 months and receiving no more than two
antipsychotics

Exclusion Criteria:

- Part A only: Confirmed suicidal behavior based on Investigator judgment or violent
behavior resulting in injury or property damage in the prior five years

- Part A only: Lifetime history of homicidal behavior

- Moderate to severe substance use disorder within six months of study entry (excluding
nicotine or caffeine) as defined by DSM-5

- Other current DSM-5 diagnosis (e.g., bipolar disorder, major depressive disorder)

- PANSS item G6 (depression) greater than or equal to 4

- Significant risk of suicide or harming him- or herself or others according to the
Investigator's judgment

- A prior or current general medical condition that might be impairing cognition or
other psychiatric functioning

- Tardive dyskinesia that is moderate to severe or requires treatment

- History of neuroleptic malignant syndrome

- On more than one antidepressant, or if on one antidepressant, a change in dose within
28 days prior to screening

- History of clozapine treatment

- Receipt of an investigational drug within 28 days or five times the half-life of the
investigational drug (whichever is longer) before the first study drug administration
We found this trial at
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201 Dowman Dr
Atlanta, Georgia 30303
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1200 Moursund Street
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Stanford, California 94305
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