An observational study in Sleep Deprivation, Circadian Dysregulation and Shift-Work Sleep Disorder, sponsored by University of Chicago. Terminated at 1 site in United States. Open to participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-10-03.
Sponsored by University of Chicago · Observational
The overall goal of the present application is to test the hypothesis that shift workers, who are chronically exposed to circadian misalignment and sleep loss, have a higher cardio-metabolic risk than day workers, and that the accumulated sleep debt and the degree of circadian misalignment both predict their elevated cardio-metabolic risk.
788 studies on the registry are indexed under Sleep Wake Disorders; 186 are open to participants now.
This study's enrollment of 64 is below the median of 114 across 215 observational studies indexed under Sleep Wake Disorders.
Browse Sleep Wake Disorders studies →University of Chicago is the lead sponsor of 907 studies on the registry; 182 are open to participants now.
Of its 99 completed or terminated interventional studies of FDA-regulated products, 68 (69%) have results posted.
Counted across the registry records on this site, refreshed daily.
We will enroll 44-46 regular day workers (work hours between 7:00 a.m. and 7:00 p.m. on all work days) and 44-46 shift workers on rotating schedules (changing shift at lease once a week and having work hours between 7:00 p.m. and 7:00 a.m. on at least 10 days per month). Both groups of subjects will work at least 30 hours per week at the University of Chicago, University of Chicago Medical Center, or other Chicago area medical center and have maintained their work schedule for at least 6 months.
Exclusion Criteria:
Behavioral: sleep extension & circadian alignment
Behavioral: sleep extension & circadian alignment
Both groups of workers will undergo a 1-week period of fixed bedtimes, light-dark cycles and mealtimes in the laboratory to pay the sleep debt and align the circadian system
Also known as: SWI intervention
This study is terminated, as verified in Sep 2016. You cannot join it, but the record below documents what was studied.
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University of Chicago