Effects of Weekly Dosing of D-cycloserine on Cognitive Function in Individuals With Schizophrenia

Summary

The study aims to assess the effects of single dose and repeated weekly dosing of 50mg d-cycloserine versus placebo on cognitive and memory functioning in schizophrenia patients. The study will also examine the effects of 50mg d-cycloserine on positive symptoms and negative symptoms, as well as assess tolerability and side-effects.

Timeline

Start

2004-07

Primary completion

2007-04

Completion

2007-04

Outcome

Mixed primary results

paper The primary outcome measures were change from baseline to week 8 on the SANS total score and on a composite cognitive score. PMID 18799288 ↗

paper d-cycloserine significantly improved SANS total scores compared to placebo at week 8. PMID 18799288 ↗

paper Cognitive performance did not improve with d-cycloserine at 8 weeks. PMID 18799288 ↗

Publications

• Results Goff DC, Cather C, Gottlieb JD, Evins AE, Walsh J, Raeke L, Otto MW, Schoenfeld D, Green MF. Once-weekly D-cycloserine effects on negative symptoms and cognition in schizophrenia: an exploratory study. Schizophr Res. 2008 Dec;106(2-3):320-7. doi: 10.1016/j.schres.2008.08.012. Epub 2008 Sep 16.

Drugs

Evaluation	Drug	Modality	Dose	Route
Subject	Cycloserine	Small molecule	50 mg	Oral

Indications