Circadian rhythm sleep disorder, delayed sleep phase type
MONDO:0024377A circadian sleep disorder in which the individual's internal body clock is delayed with respect to the external day/night cycle.
Also known as: DSPS, delayed sleep phase syndrome, sleep wake schedule disorder, delayed phase type, sleep-wake schedule disorder, delayed phase, sleepwake schedule disorder, delayed phase
36 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsBroader categories
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Could your blanket track your sleep? smart duvet tested in sleep lab
Diagnosis OngoingThis study tests a new 'intelligent duvet' called Easy Sleep Monitoring (ESM) that uses built-in sensors to detect movement and estimate sleep. Researchers will compare its accuracy to standard sleep lab tests (video-polysomnography) in 50 people, including those with sleep disor…
Phase: NA • Sponsor: University Hospital, Clermont-Ferrand • Aim: Diagnosis
Last updated Jun 27, 2026 07:52 UTC
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Could a new pill fix your body clock? phase 3 trial underway
Symptom relief OngoingThis Phase 3 trial tests whether the drug tasimelteon can help people with Delayed Sleep-Wake Phase Disorder (DSWPD) fall asleep earlier and sleep better. 70 adults with DSWPD will receive either tasimelteon or a placebo daily. The study measures sleep onset and quality using sle…
Phase: PHASE3 • Sponsor: Vanda Pharmaceuticals • Aim: Symptom relief
Last updated Jul 29, 2026 00:00 UTC
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Can sleep coaching help firefighters get better rest?
Symptom relief ENROLLING_BY_INVITATIONThis study tests whether a sleep health coaching program, based on cognitive behavioral therapy for insomnia, can improve sleep in firefighters who have trouble sleeping. About 400 firefighters from 20 fire agencies in Arizona will take part. Half will receive the coaching progra…
Phase: PHASE4 • Sponsor: University of Arizona • Aim: Symptom relief
Last updated Jul 18, 2026 00:00 UTC