Effect of Morning Light Exposure on Mood

Part of paid clinical trials in Tucson, Arizona.

Sponsor
University of Arizona
Study ID
NCT05616819
Status
Recruiting
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Conditions

  • Regulation, Emotion
  • Suicidal Ideation

Eligibility Criteria

Sex
ALL
Age
18 Years - 60 Years
Healthy Volunteers
Accepted

Interventions

  • Active light exposure — OTHER
    Active light at the wave length of 470nm will be emitted for 30 minutes over a 2 week time frame, from commercially available ayo glasses, as a method to regulated circadian rhythm.
  • Placebo light exposure — OTHER
    Placebo light at the wave length of 578nm will be emitted for 30 minutes over a 2 week time frame, from commercially available ayo glasses, as a control to investigate the regulation of circadian rhythm.

Study Details

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.

Key Dates

Start date
Jul 1, 2023
Status verified
Oct 2025
Primary completion
Jan 1, 2026
Completion
Jan 1, 2026

Study Design

Enrollment
480 participants (estimated)
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
PREVENTION

Arms

  • Active Comparator: Treatment Order A
    Active light condition for 2 weeks, a 2-week washout period, and 2 weeks of placebo light treatment.
  • Placebo Comparator: Treatment Order B
    Placebo light treatment for 2 weeks, a 2-week washout period, and 2 weeks of active light treatment.

Primary Outcome Measure

Suicidal Ideation: Depression [ Time Frame: Participants will be assessed the day before the initiation of the first two-week intervention period and the day following the conclusion of the first two-week intervention period. This will be repeated for the second two-week intervention period. ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
University of ArizonaTucsonArizona85719
William DS Killgore
[email protected]
520-621-0605
Camryn Wellman
[email protected]

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By research site
University of Arizona· Tucson, AZ

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