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Study of Sleep Inertia in Major Depressive Disorder by the Psychomotor Vigilance Task

Study of Sleep Inertia in Major Depressive Disorder by the Psychomotor Vigilance Task

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06732284
Acronym
IN-DEP
Enrollment
110
Registered
2024-12-13
Start date
2025-11-04
Completion date
2027-03-31
Last updated
2025-12-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Major Depression, Sleep Inertia

Keywords

psychomotor vigilance task

Brief summary

The study population comprises three groups of 30 analyzable participants: Patients with sleep inertia and Major Depressive Disorder, patients with Major Depressive Disorder but without sleep inertia, and controls without mood disorders or sleep inertia. Controls will be patients referred to the Sleep Disorders and Acupuncture Unit for polysomnography as part of the screening process for a sleep disorder. Only controls presenting an apnea-hypopnea index \< 15/h, a periodic leg movements index during sleep \< 15/h and a total sleep time ≥ 6 hours on the video-polysomnography will be analyzed.

Interventions

Five PVT tests (before sleep at 7pm, 7am, 7:30am, 8am and 11am). The PVT is a 10-minute test designed to assess the vigilance and sustained attention by measuring reaction times (RT) to visual stimuli. During the test, participants are required to monitor the computer screen and press the response button as soon as a millisecond counter appears which will stop the counter and display the RT in milliseconds. The stimuli are randomly presented.

Performed overnight as part of routine care (11 p.m. to 7 a.m.).

OTHERSleep and activity monitoring

Actimeter and sleep diary to assess the sleep-wake patterns of the participants in their natural environments over a two-week period.

Sponsors

Centre Hospitalier Universitaire de Nīmes
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 54 Years
Healthy volunteers
Yes

Inclusion criteria

* The patient must have given their free and informed consent and signed the consent form * The patient must be a member or beneficiary of a health insurance plan * Ability to understand, write and read French Inclusion criteria for patients with major depression * Diagnosis of depression according to DSM-5 criteria * Suspicion of a sleep disorder requiring polysomnographic screening * Score for IHSS items 3 and 4 * Score ≥ 1 for group with sleep inertia * Score = 0 for the group without sleep inertia Inclusion criteria for controls * No complaints of sleep inertia (score = 0 on IHSS items 3 and 4) * No excessive daytime sleepiness (Epworth Sleepiness Scale score ≤10), * No depressive symptoms (Hospital Anxiety Depression Scale score \< 8 on items 2, 4, 6, 8, 10, 12, 14).

Exclusion criteria

* The patient is participating in an interventional study * The patient is under safeguard of justice or state guardianship * Unweaned from the following medications for at least 5 half-lives prior to inclusion: wake-promoting or psychostimulant drugs (modafinil, methylphenidate, mazindol, amphetamine, pitolisant, solriamfetol, sodium oxybate), neuroleptics, hypnotics, antidepressants, anxiolytics, antiepileptics, budipine, dopamine agonist and antagonist antiemetics (except domperidone), opiates, gabapentin, pregabalin, benzodiazepines, Z-hypnotics (zolpidem and zopiclone), monoamine oxidase inhibitors, catechol-O-methyltransferase or sedative antihistamines. * Patients with central nervous system diseases: Parkinson's disease, mild cognitive impairment and dementia, progressive supranuclear palsy, multisystem atrophy, Huntington's chorea, amyotrophic lateral sclerosis, epilepsy, history of head trauma with loss of consciousness. * Patients with a malignant neoplastic disease requiring therapeutic treatment in the 12months prior to the screening visit * Other medical or psychiatric illnesses (with the exception of depression in he depression group) which, in the investigator's opinion, could interfere with the study. * History of suicide attempt (including failed attempt), or suicidal ideation in the past month * Chronic alcohol consumption or drug abuse in the previous 6 months * Sleep-wake circadian rhythm disorders and presence of sleep insufficiency according to ICSD-3 criteria * Pregnant, parturient or breast-feeding women.

Design outcomes

Primary

MeasureTime frameDescription
Level of vigilance and sustained attention before and after sleep between groupsPre-sleep at 7pm and the wake-up measurements at 7am, 7:30am, 8am and 11amChange in the number of omissions in the PVT test. An omission is defined as a reaction time (RT) ≥ 500 msec.

Secondary

MeasureTime frameDescription
AgeDay 0Measured in years
SexDay 0Male/female
BMI (Body Mass Index)Day 0Kg/m2
Age of onset and duration of mood disorder in both patient groupsDay 0Years
Total sleep time (TTS)Day 0Measured by polysomnography, minutes
Sleep efficiency (SE)Day 0Measured by polysomnography, percentage \[(total sleep time/time spent in bed) x 100\]
Sleep onset latencyDay 0Measured by polysomnography, minutes
Percentage in sleep stage (N1, N2, N3, SP) during the night and in the hour before waking upDay 0Measured by polysomnography, percentage
Wake after sleep onset (WASO)Day 0Measured by polysomnography, minutes
Microarousal indexDay 0Measured by polysomnography, number of microarousals /hour of sleep
Apnea-hypopnea index (AHI)Day 0Measured by polysomnography, number of apneas and hypopneas /hour of sleep
Index of periodic leg movements (MPJ)Day 0Measured by polysomnography, number of periodic leg movements /hour of sleep
Alertness7pm, 7am, 7:30am, 8am and 11am)Karolinska Sleepiness Scale (KSS)
Daytime sleepinessDay 1Epworth Sleepiness Scale (ESS)
The severity of sleep inertia in patients with major depression and sleep inertiaDay 0Measured by Idiopathic Hypersomnia Severity Scale (IHSS). Sleep inertia will be defined as severe in the case of a score ≥ 2 for both items 3 and 4 (frequent and lasting more than 30 min), absent in the case of a score = 0 for both items 3 and 4, and mild in the other cases.
FatigueDay 1Fatigue Severity Scale (FSS)
Anxiety and depressionDay 1Hospital Anxiety Depression Scale (HADS)
ApathyDay 1Apathy Evaluation Scale
InsomniaDay 1Insomnia Severity Index (ISI)
Morningness-eveningness circadian preferencesDay 1Horne and Ostberg Circadian Typology Questionnaire
Patient-reported state of healthDay 1Visual analog scale (VAS), 0 (worst health imaginable) -100 (best health imaginable)
Bedtime and wake-up times (weekdays and weekends)Week 2measured via actimetry and sleep diary over a two-week period two weeks
Mean sleep duration (weekdays and weekends)Week 2measured via actimetry and sleep diary over a two-week period two weeks
Sleep efficiency (weekdays and weekends)Week 2measured via actimetry and sleep diary over a two-week period two weeks
Sleep latency (weekdays and weekends)Week 2measured via actimetry and sleep diary over a two-week period two weeks
Wake time after sleep onsetWeek 2measured via actimetry and sleep diary over a two-week period two weeks
Number of nighttime awakenings (weekdays and weekends)Week 2Measured via actimetry and sleep diary over a two-week period
Number of naps (weekdays and weekends)Week 2Measured via actimetry and sleep diary over a two-week period
Duration of naps (weekdays and weekends)Week 2Measured via actimetry and sleep diary over a two-week period, minutes
Depressive symptomsDay 1Beck Depression Inventory (BDI-II)

Countries

France

Contacts

Primary ContactElisa EVANGELISTA
elisa.evangelista@chu-nimes.fr04.66.68.39.00

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026