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Practical use of sleep EEG for objective assessment and diagnosis of major depression - Multicenter exploratory prospective study -

Practical use of sleep EEG for objective assessment and diagnosis of major depression - Multicenter exploratory prospective study - - SEEDs Study 2

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000026835
Enrollment
210
Registered
2017-04-03
Start date
2017-04-03
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Major Depressive Disorder

Interventions

None listed

Sponsors

Shiga University of Medical Science
Lead Sponsor
Department of Psychiatry, Nihon University Kobe University Sleepwell Co.,Ltd.
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Patients who had insomnia and/or depressive episodes visited research institutes. 2) Participants comprehend the study description, and consent to the study participation by their own free will. As for the participant is a person under age, we need the consent in writing by a legally acceptable representative for their study participation.

Exclusion criteria

Exclusion criteria: 1) Organic brain disorders identified in the brain structural imaging including CT and MRI (taken within past 6 months). 2) Epileptic disorders. 3) Somatic disorders that may cause depressive symptoms such as hypothyroidism, Cushing disease, or SLE. 4) Neurotic disorders that may cause depressive symptoms such as Parkinson disease, Huntington disease, or multiple sclerosis. 5) Sleep apnea syndrome. 6) Disorderly sleep-wake pattern such as graveyard shift or shift-workers. 7) Pathological suicidal ideations and/or suicide attempts. 8) Past episodes of substance use disorder. 9) Addiction to illegal drugs (amphetamine, morphine, cocaine, cannabis, phencyclidine) by Triage test. 10) Prescribed central nervous stimulating drugs, opioid medications (Ritalin, Concerta, and opioids), Modafinil, steroids, and/or interferon. 11) Taking part in and will be going to take part in the other clinical trials during the study period. 12) Ruled unfit to the study participation by the principal investigator or a member of the research project.

Design outcomes

Primary

MeasureTime frame
1. The sleep EEG indices calculated by a basic rhythm analysis program 2. Total sleep time (TST), sleep latency (SL) sleep efficiency (SE), wake after sleep onset (WASO), stage 1 sleep, stage 2 sleep, slow wave sleep (SWS), REM sleep, REM latency, REM density, and time in bed (TIB) etc.

Secondary

MeasureTime frame
PHQ-9, BDI, HAM-D, AIS, STAI, PANSS, YMRS, MMSE, PSQI Demographic characteristics of participants, concurrent medications, clinical observations (Conventional and DSM-5 diagnoses)

Countries

Japan

Contacts

Public ContactHiroshi Kadotani

Shiga University of Medical Science Department of Sleep and Behavioral Sciences

kadotani@belle.shiga-med.ac.jpjp077-548-3632

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026