Lemborexant in Delayed Sleep Phase Syndrome
University of California, San Francisco
Summary
The purpose of the study is to evaluate whether Lemborexant is more effective than placebo in shortening sleep onset latency in patients with delayed sleep phase syndrome (both type 1 and type 2). This will be tracked using sleep logs as well as actigraphy. In this 2-year study, the investigators will examine if Lemborexant administered 5-10 mg nightly taken at desired bedtime (at least 2 hours prior to self-reported sleep onset habitual time) can improve the symptoms of Delayed Sleep Phase Syndrome.
Description
Delayed sleep phase syndrome (DSPS) is a disorder in which a person's sleep is delayed by two hours or more beyond what is considered an acceptable or conventional bedtime. The delayed sleep then causes difficulty in being able to wake up at the desired time. In DSPS, bedtime is shifted later than the general population such that individuals have difficulty getting enough sleep to meet their sleep need before they have to get up for their daytime obligations (work, school, childcare, etc.). As a result, patients experience daytime impairment including daytime sleepiness and cognitive impairmen…
Eligibility
- Age range
- 18+ years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: \- Participants will be required to be 18 years of age or older and have delayed sleep phase syndrome (DSPS). Questionnaires will be used to identify potential confounders and to confirm a potential diagnosis of DSPS based on ICSD3 criteria: a) Sleep is delayed by two hours or more beyond what is considered an acceptable or conventional bedtime for the subject (their desired bedtime). b) Subjects not able to fall asleep if trying to sleep before the later bedtime; c) This is interfering with their wishes/having a social impact. Concomitant medications will be allowed, thou…
Interventions
- DrugLemborexant
Lemborexant tablet administered orally once daily
- DrugPlacebo
Placebo to match Lemborexant tablet administered orally once daily
Location
- University of California San FranciscoSan Francisco, California