- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01487252
Circadian Phase Assessments at Home
An estimated 23 million Americans, including adolescents and the elderly, suffer from circadian rhythm sleep disorders, such as delayed sleep phase disorder, advanced sleep phase disorder and winter depression. These conditions are characterized by persistent insomnia and/or excessive daytime sleepiness, impaired performance, reduced well being and lower quality of life. The negative symptoms result from a misalignment between the timing of sleep and the internal circadian clock. Clinical research has demonstrated that circadian rhythm sleep disorders are most effectively diagnosed (differentiated from other causes of insomnia) and treated if each individual patient's circadian phase is known. The timing of the master internal circadian clock is most reliably measured from the onset of the endogenous circadian rhythm of melatonin, a neuroendocrine hormone, as measured in dim light (dim light melatonin onset, or "DLMO"). However to date the reliable and valid assessment of the DLMO is limited to the research laboratory setting.
This study is to test a streamlined procedure for the accurate assessment of circadian phase (DLMO) outside of the laboratory that will provide clinicians and researchers with a novel diagnostic and research tool. In this way the underlying neurobiological cause of a patient's insomnia and/or circadian rhythm disorder can more readily be diagnosed and treated.
Specific Aim 1 is to validate procedures for at-home circadian phase assessment in a sample of healthy people. Validation will occur by (1) objectively measuring compliance to the at-home procedures and (2) comparing DLMOs collected at home to DLMOs collected in the laboratory, in a within-subjects counterbalanced design. Specific Aim 2 is to validate the same at home procedures in patients with delayed sleep phase disorder. Specific Aim 3 is to conduct rigorous analyses to inform future users which subject characteristics and light levels predict (1) compliance to the at home procedures and (2) valid at-home DLMOs.
The results of this 3 year study will have substantial implications for the translation of basic and clinical research to the community: (1) the diagnosis and treatment of insomnia and circadian rhythm sleep disorders will be significantly enhanced, thus improving public health and safety, mood and quality of life, (2) community participation in research will be improved, particularly in vulnerable and under represented populations, thus increasing scientific knowledge and (3) research and clinical costs will be substantially reduced.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Illinois
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Chicago, Illinois, United States, 60612
- Rush University Medical Center
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Healthy adult volunteers or people with Delayed Sleep Phase Disorder
Exclusion Criteria:
- Color blindness with the Ishihara test
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Healthy Controls
|
Saliva samples taken every half an hour in evening before bedtime.
|
Active Comparator: Delayed Sleep Phase Disorder
|
Saliva samples taken every half an hour in evening before bedtime.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Dim Light Melatonin Onset
Time Frame: 9 days
|
The DLMO is assessed twice at home and twice in the laboratory.
|
9 days
|
Collaborators and Investigators
Publications and helpful links
General Publications
- Burgess HJ, Park M, Wyatt JK, Rizvydeen M, Fogg LF. Sleep and circadian variability in people with delayed sleep-wake phase disorder versus healthy controls. Sleep Med. 2017 Jun;34:33-39. doi: 10.1016/j.sleep.2017.02.019. Epub 2017 Mar 14.
- Burgess HJ, Park M, Wyatt JK, Fogg LF. Home dim light melatonin onsets with measures of compliance in delayed sleep phase disorder. J Sleep Res. 2016 Jun;25(3):314-7. doi: 10.1111/jsr.12384. Epub 2016 Feb 5.
- Burgess HJ, Wyatt JK, Park M, Fogg LF. Home Circadian Phase Assessments with Measures of Compliance Yield Accurate Dim Light Melatonin Onsets. Sleep. 2015 Jun 1;38(6):889-97. doi: 10.5665/sleep.4734.
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- AT007104
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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