Eye test may unlock secrets of delayed sleep disorder
NCT ID NCT06949644
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how the pupils of people with Delayed Sleep-Wake Phase Disorder react to light. Researchers want to see if there are differences in light sensitivity and whether a single dose of citalopram (a serotonin-boosting drug) can increase melatonin suppression during bright light exposure. About 220 adults with the disorder will participate, first at home and then in a lab for eye tests and light exposure sessions.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for DELAYED SLEEP-WAKE PHASE DISORDER are added.
By submitting, you agree to our Terms of use
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Show contact details
Enter your email to view the contact information for this study.
By submitting, you agree to our Terms of use
Study contacts
-
Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
-
Northwestern University
RECRUITINGChicago, Illinois, 60611, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
More trials for these conditions
Other studies related to the condition(s) this trial covers.