Tokyo, Jan. 1 -- UMIN Clinical Trials Registry (UMIN-CTR) received information related to the study (UMIN000060028) titled 'Effects of the difference of the display color temperature under using smartphone on human circadian rhythms' on Jan. 1.
Study Type:
Interventional
Study Design:
Basic Design - Cross-over
Randomization - Randomized
Blinding - Open -no one is blinded
Control - Dose comparison
Primary Sponsor:
Institute - Kyoto University
Condition:
Condition - Not selection
Classification by malignancy - Others
Genomic information - NO
Objective:
Narrative objectives1 - To determine how the difference of display color temperature under using smartphone with ordinary lighting environment affect the human circadian rhythms, especially rectal temperature.
Basic objectives2 - Efficacy
Intervention:
Interventions/Control_1 - High display color temperature in a.m.
Interventions/Control_2 - High display color temperature in p.m.
Eligibility:
Age-lower limit - 18
years-old
=
Gender - Male
Key inclusion criteria - Healthy
Key exclusion criteria - (1) Patients with a result score of 3 or 4 on the Cornell Medical Index for neurosis emotional disorders
(2) Extreme morning person or extreme night person in Morningness Eveningness Questionnaire
(3) Pittsburgh Sleep Questionnaire with a score of 6 or higher
(4) Those who have had a change in their living hours due to shift work or travel to time zones within one month
(5) Those who are taking any oral medication or smoking
(6) Those who has color vision variation
(7) Students who are currently enrolled or may be enrolled in a course that the principal investigator is taking
Target Size - 35
Recruitment Status:
Recruitment status - Preinitiation
Date of protocol fixation - 2025 Year 12 Month 25 Day
Anticipated trial start date - 2026 Year 01 Month 01 Day
Last follow-up date - 2026 Year 12 Month 31 Day
To know more, visit https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068651
Disclaimer: Curated by HT Syndication.
