UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000041885
Receipt number R000047810
Scientific Title Effect of daytime naps on performance in decision-making task
Date of disclosure of the study information 2020/09/24
Last modified on 2022/07/17 11:46:09

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

Effect of daytime naps on performance in decision-making task

Acronym

Effect of daytime naps on performance in decision-making task

Scientific Title

Effect of daytime naps on performance in decision-making task

Scientific Title:Acronym

Effect of daytime naps on performance in decision-making task

Region

Japan


Condition

Condition

Healthy subject

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of this study is to evaluate the effect of daytime naps on performance in decision-making task.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

1)Iowa gambling task (IGT) performance

Key secondary outcomes

1)Skin conductance response during IGT
2)Heart rate variability during IGT
3)Blood flow during IGT
4)Questionnaire about IGT
5)Sleep stages evaluated by polysomnography
6)Evaluation of sleep using wrist-watch type actigraphy (Fitbit Ltd.) and MotionWatch8 (CamNtech Ltd.)
7)Skin conductance response, heart rate variability and blood flow during sleep
8)Psychomotor vigilance test performance
9)Subjective sleepiness and mood


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification

NO

Dynamic allocation

NO

Institution consideration


Blocking

NO

Concealment



Intervention

No. of arms

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Other

Interventions/Control_1

nap condition

Interventions/Control_2

wake (rest) condition

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

20 years-old <=

Age-upper limit

60 years-old >

Gender

Male and Female

Key inclusion criteria

Participants will be included on the following all criteria.
1)Not having difficulty in filling out Japanese explanatory documents, consent forms, and survey forms
2)Being able to stay in the examination room on the 5th floor of the Innovative Medical Research Institute, University of Tsukuba.
3)Having no sleep disorder currently being treated

Key exclusion criteria

Participants will be excluded from the experiment based on the following criteria.
1)Irregular lifestyle (Regular: sleep time between 9pm and 1am, wake time between 6am and 9am, 7-9 hours of sleep)
2)BMI less than 18.5 or greater than 25
3)Worked night shifts (after 10pm) 3 months prior to the experiment
4)Travel across time zones with time difference of 3 hours or more, 3 months prior to the experiment
5) Consumes alcohol regularly (40g (2 cans of beer) or more twice a week a more)
6) Smoker
7) Consumes more than 300mg (5 cups of 150mL) of coffee every day
8) MEQ score of less than 30 (extreme evening type) or greater than 70 (extreme morning type)
9) Pittsburgh Sleep Quality Index score of greater than 5.5
10)Claustrophobic
11)Pregnancy or its possibility
12)Lactation
13)Those who have a disease that may change suddenly or its history
14)Those who have been treated for psychiatric disorders or sleep disorders, and those who have symptoms that are currently being treated
15)Subjects judged by the investigator to be inappropriate

Target sample size

120


Research contact person

Name of lead principal investigator

1st name Takashi
Middle name
Last name Abe

Organization

University of Tsukuba

Division name

International Institute for Integrative Sleep Medicine (WPI-IIIS)

Zip code

305-8575

Address

Tennodai, Tsukuba, Ibaraki 305-8575, Japan

TEL

029-859-1858

Email

abe.takashi.gp@u.tsukuba.ac.jp


Public contact

Name of contact person

1st name Takashi
Middle name
Last name Abe

Organization

University of Tsukuba

Division name

International Institute for Integrative Sleep Medicine (WPI-IIIS)

Zip code

305-8575

Address

Tennodai, Tsukuba, Ibaraki 305-8575, Japan

TEL

029-859-1858

Homepage URL


Email

abe.takashi.gp@u.tsukuba.ac.jp


Sponsor or person

Institute

University of Tsukuba

Institute

Department

Personal name



Funding Source

Organization

Kyocera Corporation

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor

Kyocera Corporation

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Clinical Research Ethics Review Committee, University of Tsukuba Hospital

Address

Amakubo, Tsukuba, Ibaraki 305-5876, Japan

Tel

029-853-3914

Email

jisedai@md.tsukuba.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

2020 Year 09 Month 24 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

No longer recruiting

Date of protocol fixation

2020 Year 09 Month 16 Day

Date of IRB

2020 Year 07 Month 31 Day

Anticipated trial start date

2020 Year 10 Month 30 Day

Last follow-up date

2021 Year 01 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2020 Year 09 Month 24 Day

Last modified on

2022 Year 07 Month 17 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000047810


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name