Investigation of the effects of organic light-emitting diode lighting on sleep

UMIN ID: UMIN000055636

Registered date:26/09/2024

Basic Information

• Recruitment status: Pending
• Health condition(s) or Problem(s) studied: Adult
• Date of first enrollment: 2024/09/26
• Target sample size: 24
• Countries of recruitment: Japan
• Study type: Interventional

Intervention(s)

Four-hours light exposure to OLED lighting with less short-wavelength light before bedtime
Four-hours light exposure to OLED lighting before bedtime
Four-hours light exposure to general LED lighting before bedtime

Outcome(s)

• Primary Outcome: Objectively measured sleep latency
• Secondary Outcome: 1) Objectively measured sleep parameters (TST(min); N1, N2, N3, REM (min, %); SE(%); N3 onset latency(min); REM onset latency(min); WASO(min, %)) 2) Changes in sleep parameters (sleep latency(min); TST(min); N1, N2, N3, REM (min, %); SE(%); N3 onset latency(min); REM onset latency(min); WASO(min, %)) from baseline 3) Sleep questionnaire (Ogri-Shirakawa-Azumi sleep inventory MA version) 4) The number of rising during sleep time

Key inclusion & exclusion criteria

• Age minimum: 18years-old
• Age maximum: 35years-old
• Gender: Male
• Exclude criteria: Individuals with 1) Any current medical treatment 2) Current or past psychiatric diseases 3) Sleep disorder 4) Sleep apnea syndrome or aware of sleep apnea 5) Any eye diseases 6) Intake of any medication 7) Intake of any quasi-drugs, health foods or supplements that may affect the study 8) PSQI >=6 9) MEQ <=30 or MEQ >=70 10) BMI >=25 11) AUDIT >=15 12) Current smokers 13) Current night-shift workers or shift workers 14) Traveling to time zone within the past month 15) Participation in other clinical trials within the past month 16) Allergic to metals or sensitive skin

Related Information

• Primary Sponsor: KANEKA CORPORATION
• Source(s) of Monetary Support: KANEKA CORPORATION