Plain-English translation of NCT03578003 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
This trial is testing whether morning bright light therapy can help veterans—especially those with traumatic brain injury—sleep better at night and feel less sleepy during the day. Many veterans struggle with sleep problems after a brain injury, and researchers want to see if spending time in front of a bright light box each morning might reset the body's internal clock and improve sleep quality.
Sleep problems are very common after traumatic brain injury and can make recovery harder. Morning bright light therapy has helped people with other sleep disorders, but it hasn't been thoroughly tested in veterans with brain injuries—so this study aims to fill that gap.
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You'll start by answering questions about your sleep and wear a small activity tracker for a week. Then, for four weeks, you'll spend 60 minutes each morning in front of a bright light box. During this time, you'll continue wearing the activity tracker to measure your sleep patterns. After the four weeks, you'll answer more questions about how you're sleeping, and researchers will check in with you again three months later to see if the benefits last.
AI-generated summary from trial data · Jun 2, 2026 · Not medical advice
United States
Portland VA Medical Center
Collaborators
Oregon Health and Science University
Enrollment target
~200 participants
Started
August 2017
Primary completion
December 2026
Age range
18 Years and older
Last updated on clinicaltrials.gov in November 2025.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
Miranda M Lim, MD, PhD
Portland VA Medical Center
Tell us you're interested and we'll help connect you with the research team. We'll walk you through what to expect first — no email needed to get started.