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Preliminary research on just-in-time intervention

Preliminary study on Just-in-time intervention using wearable devices aimed at improving sleep / waking rhythm against mood disorder

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs042190044
Enrollment
30
Registered
2019-06-17
Start date
2019-06-17
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

Bipolar disorder, Depression, Dysthymia

Interventions

We connect messages of behavioral interventions related to sleep hygiene with feedback of the previous day's sleep data with Just-in-Time method (determining the presence or absence of intervention ba

Sponsors

Iwata Nakao
Lead Sponsor
Kitajima Tuyoshi
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patients who have obtained their written consent by their own free will, after receiving sufficient explanation, to participate in this study 2. Patients between 20 and 75 years of age at the time of obtaining consent (for undergraduates or adult adults) 3. Mild to moderate depression, or outpatients diagnosed with mood disorders (major depressive disorder, bipolar disorder [types 1 and 2], dysthymia) based on DSM-5, or Also includes remission status 4. In terms of medical interviews, the average sleep time on weekdays is less than 6 hours, or the actual arrival time is later than half the week, including weekends, that is later than the desired sleep time for the patient 5. Any other treatment content (drugs etc.) currently in use 6. I have a smartphone and am used to using it

Exclusion criteria

Exclusion criteria: 1. Patients with metal and rubber allergies when wearing devices 2. Patients who are in the acute phase of depression and who the attending physician should center on intervention for mental symptoms 3. Patients with obvious lupus 4. Patients with psychophysiological insomnia (Patients who increase anxiety for sleep before sleep onset) 5. Patients who can not agree not to browse mobile apps while driving 6. Other patients judged to be inappropriate by the Principal Investigator or Investigator

Design outcomes

Primary

MeasureTime frame
Time-lapse change of mean value every two weeks (change from baseline) about sleep onset time measured by wearable device, including baseline period (2 weeks before intervention) and 6 weeks JITAI intervention period

Secondary

MeasureTime frame
For the following evaluation, change over time of mean value every two weeks (change from baseline) including baseline period (2 weeks before intervention) and 6 weeks of JITAI intervention period Daily wake time (next morning) and sleep time measured by wearable device Daily (next morning) health related indicators entered in the app (5 grades by Likert scale) Morning wake up Vigor ( There is a possibility of change by application specifications) The difference between the day with and without the intervention determined by JITAI and the influence of the passage of time on the following evaluations measured daily: Daily sleep onset time, wake time (next morning), sleep time measured by wearable device Daily (next morning) health related indicators entered in the app (5 grades by Likert scale) Morning wake up Vigor (There is a possibility of change by application specifications) Change over time during the intervention period of the following evaluation performed every two weeks Sleeping time, awakening time, halfway awakening, sleeping time according to the sleep log written by the patient Self-administered evaluation by patients Beck Depression Rating Scale (BDI) Ostberg's morning-night scale (MEQ) Munich Chronotype Questionnaire (MCTQ) Epworth Sleepiness Rating Scale (ESS) Usability of wearable device (free description) Doctor's evaluation Clinical Comprehensive Impression Scale-Degree of Improvement (CGI-I) Correlation of daily sleep onset time, wake time, and sleep time with the A.M.I Actigraph simultaneously installed in the baseline period

Contacts

Public ContactYoshiaki Ono

Fujita Health University School of Medicine

yoshiono@fujita-hu.ac.jp+81-562-93-9250

Outcome results

None listed

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