A Study to Evaluate Efficacy and Safety of Bitopertin in Participants With Persistent, Predominant Negative Symptoms of Schizophrenia

Summary

This Phase 3, multi-center, randomized, double blind, parallel-group, placebo-controlled study will evaluate the efficacy and safety of RO4917838 (bitopertin) in participants with persistent, predominant negative symptoms of schizophrenia. Participants, 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.

Timeline

Start

2010-11

Primary completion

2014-07

Completion

2014-07

Outcome

Missed primary endpoint

paper no statistically significant separation from placebo in Positive and Negative Syndrome Scale negative symptom factor score PMID 28117049 ↗

Publications

• Georgiades A, Davis VG, Atkins AS, Khan A, Walker TW, Loebel A, Haig G, Hilt DC, Dunayevich E, Umbricht D, Sand M, Keefe RSE. Psychometric characteristics of the MATRICS Consensus Cognitive Battery in a large pooled cohort of stable schizophrenia patients. Schizophr Res. 2017 Dec;190:172-179. doi: 10.1016/j.schres.2017.03.040. Epub 2017 Apr 20.
• Bugarski-Kirola D, Blaettler T, Arango C, Fleischhacker WW, Garibaldi G, Wang A, Dixon M, Bressan RA, Nasrallah H, Lawrie S, Napieralski J, Ochi-Lohmann T, Reid C, Marder SR. Bitopertin in Negative Symptoms of Schizophrenia-Results From the Phase III FlashLyte and DayLyte Studies. Biol Psychiatry. 2017 Jul 1;82(1):8-16. doi: 10.1016/j.biopsych.2016.11.014. Epub 2016 Dec 15.

Drugs

Indications