Safety and Efficacy of Eszopiclone in Patients With Generalized Anxiety Disorder

The Efficacy of Eszopiclone 3 mg as Adjunctive Therapy in Subjects With Insomnia Related to Generalized Anxiety Disorder.

To determine the safety and efficacy of eszopiclone as adjunctive therapy in the treatment of insomnia in patients with insomnia related to Generalized Anxiety Disorder. All subjects will receive an approved anxiolytic agent and will be randomized to nightly therapy with either eszopiclone or placebo.

An 8-week, randomized, double-blind, placebo-controlled, parallel-group adjunctive therapy trial. The study consists of subjects with insomnia related to Generalized Anxiety Disorder who will be treated for 10 weeks with open-label escitalopram oxalate 10 mg/day at bedtime, and randomized to receive either eszopiclone 3 mg nightly or placebo nightly for 8 weeks. This study was previously posted by Sepracor Inc. In October 2009, Sepracor Inc. was acquired by Dainippon Sumitomo Pharma., and in October 2010, Sepracor Inc's name was changed to Sunovion Pharmaceuticals Inc.

The change from baseline in subjective sleep latency averaged over the double-blind treatment period.

Subjects, between the ages of 18 and 64 years inclusive Subjects with Generalized Anxiety Disorder (GAD) Subjects with insomnia related to GAD.

Fava M, Schaefer K, Huang H, Wilson A, Iosifescu DV, Mischoulon D, Wessel TC. A post hoc analysis of the effect of nightly administration of eszopiclone and a selective serotonin reuptake inhibitor in patients with insomnia and anxious depression. J Clin Psychiatry. 2011 Apr;72(4):473-9. doi: 10.4088/JCP.09m05131gry. Epub 2010 Nov 2.

Pollack M, Kinrys G, Krystal A, McCall WV, Roth T, Schaefer K, Rubens R, Roach J, Huang H, Krishnan R. Eszopiclone coadministered with escitalopram in patients with insomnia and comorbid generalized anxiety disorder. Arch Gen Psychiatry. 2008 May;65(5):551-62. doi: 10.1001/archpsyc.65.5.551.