Constitution of a Clinical, Neurophysiological and Biological Cohort for Chronic Sleep Disorders Responsible of Hypersomnolence (Somnobank)

  • STATUS
    Recruiting
  • End date
    Nov 26, 2023
  • participants needed
    450
  • sponsor
    University Hospital, Montpellier
Updated on 11 February 2022

Summary

Chronic sleep disorders result from multiple pathophysiological mechanisms and are often associated with severe hypersomnolence, responsible for major disability. Hypersomnolence may be secondary to sleep disturbances at night by sleep fragmentation, both overall in restless leg syndrome (RLS) or specific to slow or paradoxical sleep in parasomnias (sleepwalking, sleep behavior disorder). paradoxical). Attention-Deficit / Hyperactivity Disorder (ADHD) is another cause of secondary hypersomnolence, unsolved pathophysiology, leading to a major disturbance of alertness. More rarely, hypersomnolence may be primary (central hypersomnia), representing then the most severe form existing in humans. The best-known central hypersomnia is narcolepsy type 1 (NT1), affecting 0.02% of the population. It is thanks to the existence of well-characterized clinical, biological and neuropathological patients that its pathophysiology is better understood. It is due to a selective loss of hypothalamic neurons secreting orexin / hypocretin, in connection with a probable autoimmune process, in genetically predisposed subjects. Narcolepsy type 2 (NT2), idiopathic hypersomnia (HI) and Kleine-Levin syndrome (SKL), are rarer forms of central hypersomnia, the pathophysiology of which is still unknown, due to the small number of patients studied.

Description

Chronic sleep disorders result from multiple pathophysiological mechanisms and are often associated with severe hypersomnolence, responsible for major disability. Hypersomnolence may be secondary to sleep disturbances at night by sleep fragmentation, both overall in restless leg syndrome (RLS) or specific to slow or paradoxical sleep in parasomnias (sleepwalking, sleep behavior disorder). paradoxical). Attention-Deficit / Hyperactivity Disorder (ADHD) is another cause of secondary hypersomnolence, unsolved pathophysiology, leading to a major disturbance of alertness. More rarely, hypersomnolence may be primary (central hypersomnia), representing then the most severe form existing in humans. The best-known central hypersomnia is narcolepsy type 1 (NT1), affecting 0.02% of the population. It is thanks to the existence of well-characterized clinical, biological and neuropathological patients that its pathophysiology is better understood. It is due to a selective loss of hypothalamic neurons secreting orexin / hypocretin, in connection with a probable autoimmune process, in genetically predisposed subjects. Narcolepsy type 2 (NT2), idiopathic hypersomnia (HI) and Kleine-Levin syndrome (SKL), are rarer forms of central hypersomnia, the pathophysiology of which is still unknown, due to the small number of patients studied.

Chronic sleep disorders result from multiple pathophysiological mechanisms and the constitution of a clinical, neurophysiological and biological cohort, monocentric. Patients (minors or adults) suffering from chronic sleep disorders responsible for hypersomnolence will be recruited, followed by the Sleep Disorders Unit (UTSE) and the National Reference Center for Rare Hypersomnia (CNRH) in Montpellier. The number of topics to include depends on feasibility criteria including the rarity of certain sleep disorders and recruitment opportunities. At a minimum, 150 subjects per group will be recruited according to the following ratio: NT1 (33%), other central hypersomnias (NT2, HI, SKL, 33%), and hypersomnolence secondary to a neurological sleep or vigilance disorder (ADHD, RLS, parasomnias, 33%). A match on age and sex will be considered

Details
Condition Somnolence Disorder, Excessive
Treatment Blood sample, scale of severity
Clinical Study IdentifierNCT03998020
SponsorUniversity Hospital, Montpellier
Last Modified on11 February 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

following a diagnostic of chronic sleep disorders responsible to hypersomnolence with a score at the Epworth scale better than 10/24
can be treated or not for chronic sleep disorder
speak and understand french
should have a social security system
should not have infectious or inflammatory pathology

Exclusion Criteria

be private of liberty
live in medical institution
be a major protected by law
not have social security system
refuse to participate in protocol
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