NCT03998020

Brief 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.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
5,000

participants targeted

Target at P75+ for not_applicable

Timeline
81mo left

Started Jun 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress48%
Jun 2020Jun 2033

First Submitted

Initial submission to the registry

September 10, 2018

Completed
10 months until next milestone

First Posted

Study publicly available on registry

June 25, 2019

Completed
12 months until next milestone

Study Start

First participant enrolled

June 16, 2020

Completed
10 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 16, 2030

Expected
3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 16, 2033

Last Updated

January 2, 2024

Status Verified

December 1, 2023

Enrollment Period

10 years

First QC Date

September 10, 2018

Last Update Submit

December 29, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Severity of somnolence

    evaluation with sleep latency test, validated questionnaires

    Inclusion

Secondary Outcomes (1)

  • level of somnolence

    12 months maximum

Study Arms (1)

chronic sleep disorders

OTHER

Subjects with chronic sleep disorders responsible of hypersomnolence measured by a scale of severity of sleep disorder, and blood parameters (blood sample)

Other: scale of severityGenetic: blood sample

Interventions

assessment of the severity of the sleep disorders by scale

chronic sleep disorders

Genetical study, serum and sample

chronic sleep disorders

Eligibility Criteria

Age6 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Have a complaint of chronic hypersomnolence on questioning, identified by a sleep specialist and requiring objective explorations in the Centre de Hypersomnias Rares, with or without a diagnosis of chronic sleep disorder according to the International Classification scale in force at the time of diagnosis
  • 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

You may not qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UH Montpellier

Montpellier, 34295, France

RECRUITING

MeSH Terms

Conditions

Disorders of Excessive Somnolence

Interventions

Blood Specimen Collection

Condition Hierarchy (Ancestors)

Sleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesMental Disorders

Intervention Hierarchy (Ancestors)

Specimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisPuncturesSurgical Procedures, OperativeInvestigative Techniques

Central Study Contacts

Pôle Recherche et Innovation

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Model Details: Intervention = Blood withdrawal
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 10, 2018

First Posted

June 25, 2019

Study Start

June 16, 2020

Primary Completion (Estimated)

June 16, 2030

Study Completion (Estimated)

June 16, 2033

Last Updated

January 2, 2024

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share

Locations