Circadian rhythm sleep disorder
MONDO:0024361A persistent or recurrent pattern of sleep disruption that is primarily due to an alteration of the circadian system or to a misalignment between the endogenous circadian rhythm and the sleep-wake schedule required by an individual's physical environment or social or professional schedule.(DSM IV)
Also known as: circadian sleep disorder
139 clinical trials for this condition and its sub-types.
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Broader categories
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Can a pill help Night-Shift workers sleep during the day?
Symptom relief TerminatedThis study tested whether lemborexant, a sleep medication, can help people who work night shifts get better daytime sleep without feeling drowsy later. Five healthy adults who had not done shift work in the past year took either lemborexant or a placebo before daytime sleep in a …
Phase: PHASE2 • Sponsor: Centre Integre Universitaire de Sante et Services Sociaux du Nord de l'ile de Montreal • Aim: Symptom relief
Last updated Jun 27, 2026 12:38 UTC
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Can a wakefulness drug help Early-Morning workers stay alert?
Symptom relief TerminatedThis study tested whether the drug solriamfetol (Sunosi) can reduce excessive sleepiness in people who start work between 3 and 6 AM. The trial planned to enroll 84 participants but was terminated early. Researchers measured sleepiness using a test that tracks how long people can…
Phase: PHASE4 • Sponsor: Charles A. Czeisler, PhD, MD • Aim: Symptom relief
Last updated Jun 27, 2026 07:51 UTC