NCT05677932

Bright Light Therapy for Post-COVID-19 Fatigue

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 12 (actual)
• Sponsor: Chinese University of Hong Kong · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This is a randomized placebo-controlled trial to examine the efficacy of two-week bright light therapy for patients with post-COVID-19 fatigue.

Detailed description

This randomized placebo-controlled trial aims to evaluate the efficacy of BLT in reducing fatigue symptoms after COVID-19 infection. The second aim of the study is to explore the effects of BLT on insomnia, depression and anxiety symptoms. Method: Each eligible participant will be randomized to either i) bright light therapy (BLT) or ii) dim red light (placebo) treatment for 30-minutes daily at their habitual wake time for a total of two weeks. Participants will be evaluated at baseline, 2nd (end of treatment), and 4th week (post-treatment 2-week) for fatigue and other symptoms.

Conditions

• Post COVID-19 Condition

Interventions

Type	Name	Description
DEVICE	Bright light therapy	Exposure to bright light therapy for 30mins a day for two weeks
DEVICE	Dim red light therapy	Exposure to 50lux dim red light therapy for 30mins a day for two weeks

Timeline

• Start date: 2023-02-15
• Primary completion: 2024-02-28
• Completion: 2024-04-30
• First posted: 2023-01-10
• Last updated: 2026-03-20

Locations

1 site across 1 country: Hong Kong