UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000042634
Receipt number R000048092
Scientific Title A study of the effects of sleep behavioral therapy for social jet lag using a remote support system
Date of disclosure of the study information 2021/02/01
Last modified on 2023/03/05 11:13:52

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Basic information

Public title

A study of the effects of sleep behavioral therapy for social jetlag using a remote support system

Acronym

SKUSH trial

Scientific Title

A study of the effects of sleep behavioral therapy for social jet lag using a remote support system

Scientific Title:Acronym

SKUSH trial

Region

Japan


Condition

Condition

sleep disturbance

Classification by specialty

Psychiatry

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to investigate whether sleep behavioral therapy using a remote support system contributes to improved SJL in university students.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Change of SJL after 2 weeks intervention

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -but assessor(s) are blinded

Control

No treatment

Stratification

YES

Dynamic allocation

YES

Institution consideration

Institution is not considered as adjustment factor.

Blocking

YES

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Behavior,custom

Interventions/Control_1

Remote support system interventions: sleep behavioral therapy program based on 1.sleep hygiene education, 2.sleep extension.
Send the following information daily by email.
1. Sleep hygiene education
Instruction will be based on the sleep guidelines 2014, including appropriate sleep environment, exposure to sunlight after waking, limiting alcohol consumption and smoking before bedtime, limiting caffeinated beverage consumption, advice on diet, exercise and bathing, advice on blue light before bed, and advice on napping.
2. Sleep extension
Develop a sleep schedule based on the baseline survey and provide instruction on extending sleep to advance weekday bedtimes by 5 minutes per day. On weekends, provide instruction on waking up at the same time as weekdays to prevent late bedtime.

Interventions/Control_2

Not provide a remote support system programs

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

40 years-old >

Gender

Male and Female

Key inclusion criteria

1. Japanese university and graduate school students
2. SJL is more than 60 minutes
3. Those who have own smartphone or computer with internet access
4. Those who speak Japanese as first langurage
5. Those who understand the research and obtain written consent to participate in the research

Key exclusion criteria

1. Shift Workers
2. Those who will be in significant time differences, such as overseas travel, during the study period
3. Patient Health Questionnaire-9 (PHQ-9), Q9 "Thoughts that you would be better off dead or of hurting yourself in some way" is More than half the days in the past two weeks, or the total score is 10 or more
4. Those who has a treatment in psychiatry
5. Taking antidepressant medication
6. Those who the researcher think it is inappropriate to enter study

Target sample size

60


Research contact person

Name of lead principal investigator

1st name Ryuji
Middle name
Last name Furihata

Organization

Kyoto University

Division name

Kyoto University Health Service

Zip code

6068501

Address

Yoshida-Honmachi, Sakyo-ku, Kyoto

TEL

075-753-2404

Email

furihata.ryuji.2x@kyoto-u.ac.jp


Public contact

Name of contact person

1st name Satoe
Middle name
Last name Okabayashi

Organization

Kyoto university

Division name

Kyoto University Health Service

Zip code

6068501

Address

Yoshida-Honmachi, Sakyo-ku, Kyoto

TEL

075-753-2404

Homepage URL


Email

sleephealth_trial@hoken.kyoto-u.ac.jp


Sponsor or person

Institute

Kyoto University Health Service

Institute

Department

Personal name



Funding Source

Organization

Ministry of education

Organization

Division

Category of Funding Organization

Government offices of other countries

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor

Kyoto University

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto University Graduate school and Faculty of Medicine, Ethics Committee

Address

Yoshida-Konoe-cho, Sakyo-ku, Kyoto

Tel

075-753-4680

Email

ethcom@kuhp.kyoto-u.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2021 Year 02 Month 01 Day


Related information

URL releasing protocol

https://yobou.med.kyoto-u.ac.jp/implementation/

Publication of results

Published


Result

URL related to results and publications

https://link.springer.com/article/10.1007/s41105-023-00453-5

Number of participants that the trial has enrolled

54

Results

Of 54 students, 26 were assigned to an intervention group and 28 to a control group. The difference in the mean change in social jetlag (SJL) between the two groups (n = 26, n = 27) at two weeks was statistically significant (27.7 min, P = 0.048). The scores for the Epworth Sleepiness Scale (ESS), Patient Health Questionnaire-9 (PHQ-9), and sleep quiz were improved in the intervention group relative to the control group.

Results date posted

2023 Year 03 Month 05 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results

2023 Year 02 Month 21 Day

Baseline Characteristics

The percentage of obese (BMI>=25) individuals differed significantly between the two groups (X2=4.65, P=0.034), as did the percentage of individuals who consumed caffeine (X2=5.31, P=0.021).

Participant flow

Of the 210 individuals who applied to participate, 71 met the inclusion criteria on screening, and 139 did not meet the inclusion criteria. Sixty-nine were eligible to participate in the trial briefing information session (excluding 2 who canceled their participation). Among these individuals, 54 were eligible for allocation (excluding 7 who could not attend the trial briefing session, 6 who declined to participate in the briefing session, and 2 who canceled the trial attendance before randomization). Of those remaining, 26 were assigned to the intervention group and 28 to the control group. One participant in the control group was excluded from the analysis due to poor adherence. Thus, a total of 26 participants in the intervention group and 27 in the control group completed the trial. Finally, 22 participants in the intervention group and 27 in the control group completed the 6-month follow-up survey.

Adverse events

No important harmful or unintended effects were observed in either group.

Outcome measures

The primary measure
The mean change in social jetlag (SJL) assessed using the Munich ChronoType Questionnaire (MCTQ) from pre-test to post-test.

Secondary measures
Pittsburgh Sleep Quality Index (PSQI)
Epworth Sleepiness Scale (ESS)
Insomnia Severity Index (ISI)
Patient Health Questionnaire-9 (PHQ-9)
Sleep quiz
Sleep diary

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2020 Year 12 Month 31 Day

Date of IRB

2020 Year 12 Month 03 Day

Anticipated trial start date

2021 Year 03 Month 01 Day

Last follow-up date

2022 Year 02 Month 28 Day

Date of closure to data entry

2022 Year 03 Month 31 Day

Date trial data considered complete

2022 Year 05 Month 31 Day

Date analysis concluded

2022 Year 11 Month 20 Day


Other

Other related information



Management information

Registered date

2020 Year 12 Month 03 Day

Last modified on

2023 Year 03 Month 05 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000048092


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name