To evaluate the long-term safety and efficacy of eszopiclone administered for 12 weeks in elderly subjects with primary chronic insomnia.Administration of eszopiclone 2 mg daily at bedtime for 12 weeks in elderly subjects with a diagnosis of primary chronic insomnia will be safe and well tolerated, improve subjective sleep measures, improve measures of Quality of Life and next day insomnia symptoms, and have no significant withdrawal central nervous system adverse events or rebound insomnia.
Primary Outcome Measures:
- The primary efficacy endpoint will be the change from baseline in subject reported TST averaged over the 12-week double-blind study period. [ Time Frame: 12 weeks ] [ Designated as safety issue: Yes ]
Secondary Outcome Measures:
- The change from baseline in subject reported Sleep Latency (SL) averaged over the 12-week double-blind period and subject reported Wake Time After Sleep Onset (WASO) averaged over the 12-week double-blind [ Time Frame: 12 weeks ] [ Designated as safety issue: Yes ]
Estimated Enrollment: |
430 |
Study Start Date: |
October 2006 |
Study Completion Date: |
February 2008 |
Primary Completion Date: |
February 2008 (Final data collection date for primary outcome measure) |
1: Placebo Comparator
Placebo
|
Drug: Eszopiclone
Placebo; Eszopiclone 2 mg tablets
|
2: Active Comparator
Eszopiclone 2 mg tablets
|
Drug: Eszopiclone
Placebo; Eszopiclone 2 mg tablets
|
A double-blind, randomized, placebo controlled, parallel group study of eszopiclone in elderly subjects with primary chronic insomnia. The study will involve up to 9 visits and subject participation will be approximately 18 weeks.