UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061079
Receipt number R000069887
Scientific Title Diurnal Variation of Fatigue VAS: Observational Study
Date of disclosure of the study information 2026/03/27
Last modified on 2026/03/27 12:46:35

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Basic information

Public title

Diurnal Variation of Fatigue VAS

Acronym

Diurnal Variation of Fatigue VAS

Scientific Title

Diurnal Variation of Fatigue VAS: Observational Study

Scientific Title:Acronym

Diurnal Variation of Fatigue VAS

Region

Japan


Condition

Condition

Healthy Japanese

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To examine the diurnal variation of the Fatigue Visual Analog Scale (VAS).

Basic objectives2

Others

Basic objectives -Others

This study aims to examine the diurnal variation of the Fatigue VAS.
As a secondary objective, annual changes in the diurnal variation will also be examined.

Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

1. Diurnal variation of the Fatigue VAS

Key secondary outcomes

1. Association between Fatigue VAS and years of employment

2. Association between Fatigue VAS and the original questionnaire

Items in the original questionnaire: sleep duration and working hours.


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


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


Not applicable

Gender

Male and Female

Key inclusion criteria

1. Japanese

2. Men or women

3. Adults

Key exclusion criteria

1. Individuals who are judged as ineligible to participate in this study by the physician

Target sample size

43


Research contact person

Name of lead principal investigator

1st name Tsuyoshi
Middle name
Last name Takara

Organization

Medical Corporation Seishinkai, Takara Clinic

Division name

Director

Zip code

141-0022

Address

9F Taisei Bldg., 2-3-2, Higashi-gotanda, Shinagawa-ku, Tokyo, Japan

TEL

03-5793-3623

Email

t-takara@takara-clinic.com


Public contact

Name of contact person

1st name Naoko
Middle name
Last name Suzuki

Organization

ORTHOMEDICO Inc.

Division name

R&D Department

Zip code

112-0002

Address

2F Sumitomo Fudosan Korakuen Bldg., 1-4-1, Koishikawa, Bunkyo-ku, Tokyo, Japan

TEL

03-3818-0610

Homepage URL


Email

nao@orthomedico.jp


Sponsor or person

Institute

ORTHOMEDICO Inc.

Institute

Department

Personal name



Funding Source

Organization

Nome

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

The ethical committee of the Takara Clinic, Medical Corporation Seishinkai

Address

9F Taisei Bldg., 2-3-2, Higashi-gotanda, Shinagawa-ku, Tokyo, Japan

Tel

03-5793-3623

Email

IRB@takara-clinic.com


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

株式会社オルトメディコ (東京都)
ORTHOMEDICO Inc. (Tokyo, Japan)


Other administrative information

Date of disclosure of the study information

2026 Year 03 Month 27 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

Preinitiation

Date of protocol fixation

2026 Year 03 Month 11 Day

Date of IRB

2026 Year 03 Month 11 Day

Anticipated trial start date

2026 Year 04 Month 01 Day

Last follow-up date

2028 Year 04 Month 23 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

The design of this test is a non-randomized, open-label, single-group study.


Management information

Registered date

2026 Year 03 Month 27 Day

Last modified on

2026 Year 03 Month 27 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000069887