Magnetoencephalographic (MEG) Localization of Ramelteon's Effects on Brain Function and Cortical Arousal in Insomnia
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Purpose
The present protocol will utilize simultaneous recording of brain activity during attention and memory tasks in insomnia participants after ramelteon vs. zolpidem vs. placebo administration. The investigators hypothesize that amplitudes of associated with memory will be unchanged by ramelteon, whereas zolpidem will significantly reduce brain activity associated with stimulus processing as evidenced by abnormal reduction in the amplitude of specific brain regions relative to placebo.
| Condition |
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Insomnia |
| Study Type: | Observational |
| Study Design: | Time Perspective: Cross-Sectional |
| Official Title: | Magnetoencephalographic Localization of Ramelteon's Effects on Brain Function and Cortical Arousal in Insomnia |
| Enrollment: | 24 |
| Study Start Date: | May 2008 |
| Study Completion Date: | March 2010 |
| Primary Completion Date: | March 2010 (Final data collection date for primary outcome measure) |
| Groups/Cohorts |
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1
Insomniacs: Individuals reporting difficulty falling asleep or staying asleep within the past month for more than 3 days per week. Individuals much also meet screening criteria based on an overnight polysomnograph of latency to persistent sleep >20 minutes and/or >60 minutes of wake after sleep onset.
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2
Controls: Individuals reporting no difficulty falling asleep or staying asleep and objective sleep measures based on an overnight polysomnograph of latency to persistent sleep <20 minutes and/or <60 minutes of wake after sleep onset.
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Detailed Description:
The proposed research has two specific aims: 1) demonstrate that ramelteon has no effect on event related potential components that reflect basic sensory processes (P1 and N1), and will not impair attention and memory processes, whereas the benzodiazepine receptor agonist zolpidem will significantly reduce (relative to placebo) the amplitude of these event related potential components throughout the cerebral cortex and 2) show that ramelteon reduces the abnormal hyperarousal in insomnia as reflected through a reduction in the contingent negative variation component of the event related potential across frontal and parietal brain regions.
Eligibility| Ages Eligible for Study: | 18 Years to 55 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
| Sampling Method: | Probability Sample |
Insomniacs, individuals with difficulty falling asleep or staying asleep.
Inclusion Criteria:
- Healthy individuals with no secondary condition to insomnia.
Exclusion Criteria:
- Healthy individuals with no insomnia.
Contacts and Locations| United States, Michigan | |
| Henry Ford Hospital Sleep Disorders & Research Center | |
| Detroit, Michigan, United States, 48202 | |
| Principal Investigator: | Christopher Drake, Ph.D. | Henry Ford Hospital Sleep Disorders & Research Center |
More Information
No publications provided
| Responsible Party: | Christopher Drake, Ph.D., Henry Ford Health System |
| ClinicalTrials.gov Identifier: | NCT00688025 History of Changes |
| Other Study ID Numbers: | 07-033R |
| Study First Received: | May 28, 2008 |
| Last Updated: | March 30, 2010 |
| Health Authority: | United States: Institutional Review Board |
Additional relevant MeSH terms:
|
Sleep Initiation and Maintenance Disorders Sleep Disorders, Intrinsic Dyssomnias |
Sleep Disorders Nervous System Diseases Mental Disorders |
ClinicalTrials.gov processed this record on May 22, 2013