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Circadian Light Exposure Adjustment for Restfulness

Study acronym: CLEAR
StatusRecruiting
PhaseNot applicable
Started
View on ClinicalTrials.gov ↗
Trial flagged as At Risk
Primary completion moved at least 30 days later Dec 1, 2029 → Dec 31, 2029
See other at-risk trials from University of Arizona

Record History

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  1. Recruitment opened Show 7 more changesShow less
    • Primary completion pushed from Dec 1, 2029 to Dec 31, 2029
    • Study completion moved earlier from Jul 31, 2030 to Mar 31, 2030
    • Start date changed from estimate of Jan 15, 2026 to Jan 29, 2026
    • Eligibility criteria expanded, about 6 words
    • Secondary endpoints: details revised at 2 of 4 entries
    • Site details revised
    • Publications revised (9)
  2. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
Many young children are exposed to light int he evening hours before bedtime. Children's biological clocks are highly sensitive to evening light exposure, which can delay the timing of the clock and make it harder to fall asleep. The purpose of this study is to test three strategies (adjustment to home lighting, amber-tinted glasses, clear glasses) to reduce evening light exposure in children ages 5-6 years with parent-reported sleep onset difficulties in order to improve their sleep and the timing of their biological clock. This study takes place over approximately 5 weeks. After baseline assessments of children's sleep timing, light exposure, cognition, and circadian rhythms, they will be randomly assigned to one of three interventions to reduce evening light exposure for two weeks. After the two-week intervention period, the baseline measures are repeated and parents are interviewed about their and their child's experiences with the intervention.
Trial Details
NCT Number NCT07391852
Lead Sponsor University of Arizona
Collaborators: National Heart, Lung, and Blood Institute (NHLBI)
Conditions
(from sponsor)		 Sleep Onset Latency
Enrollment 60 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov