Actively Recruiting
Effect of Morning Light Exposure on Mood
Led by University of Arizona · Updated on 2025-11-04
480
Participants Needed
1
Research Sites
130 weeks
Total Duration
On this page
Sponsors
U
University of Arizona
Lead Sponsor
U
U.S. Army Medical Research Acquisition Activity
Collaborating Sponsor
AI-Summary
What this Trial Is About
Mood dysregulation and suicidal ideation are closely associated with disruption of sleep and circadian rhythms. Moreover, sleep problems and circadian disruption are commonplace features of military life. Critically, specifically timed light exposure plays a powerful role in regulating mood, circadian rhythms, and sleep-wake patterns. Therefore, investigators propose to conduct a large-scale clinical trial on the effectiveness of morning light exposure treatment for improving sleep-wake patterns, emotional and mental health, and suicidal thoughts in military personnel.
CONDITIONS
Official Title
Effect of Morning Light Exposure on Mood
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Ages 18-60 years
- At least an 8th grade reading level
- Score of 5 or higher on the Patient Health Questionnaire 9 (PHQ-9), indicating mild depression or greater
- Service member of any Armed Forces branch, including active duty, Reserve, or National Guard
You will not qualify if you...
- Not actively serving in an Armed Forces branch
- Score below 5 on the Patient Health Questionnaire 9 (PHQ-9), indicating non-depressed status
- Pregnant or trying to become pregnant
- Breastfeeding
- History of psychotic disorder or manic episodes
- Bipolar disorder
- Diseases of the eye
- History of cataract surgery
- Frequent and light-sensitive migraine headaches
- Plan to regularly work night shifts during the 6-week study period
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
University of Arizona
Tucson, Arizona, United States, 85719
Actively Recruiting
Research Team
W
William D Killgore, Ph.D.
CONTACT
C
Camryn Wellman
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
DOUBLE
Allocation
RANDOMIZED
Model
CROSSOVER
Primary Purpose
PREVENTION
Number of Arms
2
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