Role of Sleep Reactivity in Shift Work Disorder

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorHenry Ford Health System

About this trial

The purpose of this project is to test sleep reactivity as an independent cause of Shift Work Disorder (SWD). The primary hypothesis is that those with high sleep reactivity will show persistent SWD symptoms after experimental reduction of circadian misalignment, which will then be mitigated with CBT.

Eligibility criteria

Qualifiers

Participants must be working a fixed nightshift schedule, operationalized as: a) working at least three night shifts a week, b) shifts must begin between 18:00 and 02:00, and last between 8 to 12 hours, and c) must also plan to maintain the nightshift schedule for the duration of the study

Participants must have Shift Work Disorder, which will be diagnosed based on ICSD-3 criteria

Participants must show circadian misalignment, operationalized as a baseline melatonin onset between 18:00 and 01:00.

Participants must be at least 18 years old

Disqualifiers

Insomnia disorder or excessive sleepiness predating the onset of shift work

Termination of nightshift schedule

Presence of other sleep disorders (e.g. obstructive sleep apnea, narcolepsy) determined by standard clinical polysomnography

Diagnosis of bipolar disorder

Trial design

Treatments tested in this trial

  • Active phototherapy
  • Control phototherapy
  • Cognitive Behavioral Therapy (CBT)
  • Sleep education control

Treatment groups

150 Participants
are divided into 4 treatment groups

Sponsors and collaborators

Henry Ford Health System

Lead sponsor

National Heart, Lung, and Blood Institute (NHLBI)

Collaborator