A Study of RO4917838 in Combination With Antipsychotic Treatment in Patients With Schizophrenia.

Summary

This study will determine the efficacy and safety of RO4917838 in patients with schizophrenia who are stable on current antipsychotic treatment (olanzapine, que tiapine, risperidone, paliperidone or aripiprazole) with prominent negative or d isorganized thought symptoms. After a 4 week run in period on their current anti psychotic treatment, patients will be randomized to receive placebo 10mg, 30mg, or 60mg of RO4917838 once daily, p.o., as add-on therapy. The anticipated time o n study treatment is \<3 months, and the target sample size is 100-500 individual s.

Timeline

Start

2008-03

Primary completion

2010-02

Completion

2010-02

Publications

• Umbricht D, Alberati D, Martin-Facklam M, Borroni E, Youssef EA, Ostland M, Wallace TL, Knoflach F, Dorflinger E, Wettstein JG, Bausch A, Garibaldi G, Santarelli L. Effect of bitopertin, a glycine reuptake inhibitor, on negative symptoms of schizophrenia: a randomized, double-blind, proof-of-concept study. JAMA Psychiatry. 2014 Jun;71(6):637-46. doi: 10.1001/jamapsychiatry.2014.163.

Drugs

Indications