UMIN-CTR Clinical Trial
| Unique ID issued by UMIN | UMIN000060714 |
|---|---|
| Receipt number | R000069464 |
| Scientific Title | Study on Task Performance Under Low-Illuminance Conditions With Controlled Illuminance and Color Temperature |
| Date of disclosure of the study information | 2026/02/23 |
| Last modified on | 2026/02/20 16:40:46 |
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Basic information
Public title
Study on Task Performance Under Low-Illuminance Conditions With Controlled Illuminance and Color Temperature
Acronym
Study on Task Performance Under Low-Illuminance Conditions With Controlled Illuminance and Color Temperature
Scientific Title
Study on Task Performance Under Low-Illuminance Conditions With Controlled Illuminance and Color Temperature
Scientific Title:Acronym
Study on Task Performance Under Low-Illuminance Conditions With Controlled Illuminance and Color Temperature
Region
| Japan |
Condition
Condition
Healthy volunteers
Classification by specialty
| Not applicable | Adult |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
To compare the effects of light environments with general LED lighting, OLED lighting on Work Performance
Basic objectives2
Efficacy
Basic objectives -Others
Trial characteristics_1
Trial characteristics_2
Developmental phase
Assessment
Primary outcomes
The average number of responses on the Uchida-Kraepelin Psychodiagnostic Test under light intervention
Key secondary outcomes
1) Uchida-Kraepelin Psychodiagnostic Test(mean number of errors)
2)Karolinska Sleepiness Scale (KSS)
3)Autonomic Nervous System Function(fatigue status, psychological state)
4)Visual Analog Scale (VAS), Psychological Assessments
Base
Study type
Interventional
Study design
Basic design
Cross-over
Randomization
Randomized
Randomization unit
Individual
Blinding
Open -no one is blinded
Control
Placebo
Stratification
Dynamic allocation
Institution consideration
Blocking
Concealment
Intervention
No. of arms
8
Purpose of intervention
Prevention
Type of intervention
| Other |
Interventions/Control_1
Visit 1: OLED (150 lux) followed by LED (150 lux)
Visit 2: LED (300 lux) followed by OLED (300 lux)
Visit 3: OLED (500 lux) followed by LED (500 lux)
Visit 4: LED (750 lux) followed by OLED (750 lux)
Interventions/Control_2
Visit 1: OLED (300 lux) followed by LED (300 lux)
Visit 2: LED (500 lux) followed by OLED (500 lux)
Visit 3: OLED (750 lux) followed by LED (750 lux)
Visit 4: LED (150 lux) followed by OLED (150 lux)
Interventions/Control_3
Visit 1: OLED (500 lux) followed by LED (500 lux)
Visit 2: LED (750 lux) followed by OLED (750 lux)
Visit 3: OLED (150 lux) followed by LED (150 lux)
Visit 4: LED (300 lux) followed by OLED (300 lux)
Interventions/Control_4
Visit 1: OLED (750 lux) followed by LED (750 lux)
Visit 2: LED (150 lux) followed by OLED (150 lux)
Visit 3: OLED (300 lux) followed by LED (300 lux)
Visit 4: LED (500 lux) followed by OLED (500 lux)
Interventions/Control_5
Visit 1: LED (150 lux) followed by OLED (150 lux)
Visit 2: OLED (300 lux) followed by LED (300 lux)
Visit 3: LED (500 lux) followed by OLED (500 lux)
Visit 4: OLED (750 lux) followed by LED (750 lux)
Interventions/Control_6
Visit 1: LED (300 lux) followed by OLED (300 lux)
Visit 2: OLED (500 lux) followed by LED (500 lux)
Visit 3: LED (750 lux) followed by OLED (750 lux)
Visit 4: OLED (150 lux) followed by LED (150 lux)
Interventions/Control_7
Visit 1: LED (500 lux) followed by OLED (500 lux)
Visit 2: OLED (750 lux) followed by LED (750 lux)
Visit 3: LED (150 lux) followed by OLED (150 lux)
Visit 4: OLED (300 lux) followed by LED (300 lux)
Interventions/Control_8
Visit 1: LED (750 lux) followed by OLED (750 lux)
Visit 2: OLED (150 lux) followed by LED (150 lux)
Visit 3: LED (300 lux) followed by OLED (300 lux)
Visit 4: OLED (500 lux) followed by LED (500 lux)
Interventions/Control_9
Interventions/Control_10
Eligibility
Age-lower limit
| 18 | years-old | <= |
Age-upper limit
| 50 | years-old | >= |
Gender
Male and Female
Key inclusion criteria
1) Healthy Japanese males aged 18 to 50 years old
2) Individuals with a habitual sleep duration of 7 hours or longer
3) Individuals with the ability to visit the designated university at the specified date and time
4) Individuals with written informed consent to participate in this study
Key exclusion criteria
1) Individuals with Any current medical treatment
2) Individuals with current or past psychiatric diseases
3) Individuals with any eye diseases
4) Individuals with injuries or disabilities that interfere with undergoing the examinations
5) Individuals with an inability to refrain from consuming Foods for Specified Health Uses (FOSHU), Foods with Function Claims, or other so-called health foods during the study period
6) Individuals with current participation in another clinical study, or participation in another clinical study within one month prior to the date of informed consent
7) Individuals with plans to participate in another study during the study period
8) Individuals with an inability or unwillingness to comply with the instructions of the principal investigator, study representative,or sub-investigators
9) Individuals with an inability to comply with participant management requirements during the study period (Section 4.9)
Target sample size
30
Research contact person
Name of lead principal investigator
| 1st name | Youichi |
| Middle name | |
| Last name | Yamaguchi |
Organization
KANEKA CORPORATION
Division name
OLED Business Development Project Business Development Group Applied Technology Team
Zip code
107-6090
Address
1-12-32 Akasaka, Minato-ku, Tokyo, JAPAN
TEL
03-5574-8000
youichi.yamaguchi1@kaneka.co.jp
Public contact
Name of contact person
| 1st name | Ryosuke |
| Middle name | |
| Last name | Wakabayashi |
Organization
KANEKA CORPORATION
Division name
OLED Business Development Project Business Development Group Applied Technology Team
Zip code
107-6090
Address
1-12-32 Akasaka, Minato-ku, Tokyo, JAPAN
TEL
03-5574-8000
Homepage URL
Ryosuke.Wakabayashi@kaneka.co.jp
Sponsor or person
Institute
KANEKA CORPORATION
Institute
Department
Personal name
Funding Source
Organization
KANEKA CORPORATION
Organization
Division
Category of Funding Organization
Profit organization
Nationality of Funding Organization
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
Ethical review committee, Kanazawabunko Hospital
Address
2-6-22 Kamariya Higashi, Kanazawa-ku, Yokohama, Kanagawa
Tel
0570-783-706
r.yokohama@kanabun-hp.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
学校法人東京理科大学 野田キャンパス（千葉県）
Other administrative information
Date of disclosure of the study information
| 2026 | Year | 02 | Month | 23 | 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
| 2025 | Year | 09 | Month | 22 | Day |
Date of IRB
| 2025 | Year | 09 | Month | 22 | Day |
Anticipated trial start date
| 2026 | Year | 02 | Month | 23 | Day |
Last follow-up date
| 2026 | Year | 06 | Month | 30 | Day |
Date of closure to data entry
Date trial data considered complete
Date analysis concluded
Other
Other related information
Management information
Registered date
| 2026 | Year | 02 | Month | 20 | Day |
Last modified on
| 2026 | Year | 02 | Month | 20 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000069464
