Morning Bright Light to Improve Sleep Quality in Veterans

Overview

One of the principal complicating factors associated with traumatic brain injury (TBI) is sleep-wake disturbances (e.g., insomnia, excessive daytime sleepiness, and circadian rhythm sleep disorders). Morning bright light therapy (MBLT) has been shown to improve sleep quality in a variety of conditions, but little has been done investigating the utility of MBLT in improving sleep in Veterans with TBI. This proposal aims to determine the effect of MBLT on sleep quality in Veterans with TBI. Veterans with and without TBI will be recruited from the VA Portland Health Care System. Baseline questionnaires and 7 days of actigraphy will be collected prior to engaging in 60 minutes of MBLT daily for 4 weeks, during which actigraphy will also be collected continuously. Post-MBLT questionnaire data will be collected, and follow-up questionnaire data will be collected at 3 months post-MBLT.

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Treatment
    • Masking: Single (Outcomes Assessor)
  • Study Primary Completion Date: August 2, 2024

Interventions

  • Other: Morning Bright Light Therapy
    • 60 minutes of bright light therapy (10,000 lux) received within 90 minutes of waking

Arms, Groups and Cohorts

  • Experimental: Morning Bright Light Therapy
    • Subjects who engage in morning bight light therapy
  • No Intervention: Control
    • Subjects who do not engage in morning bright light therapy

Clinical Trial Outcome Measures

Primary Measures

  • Change in Insomnia Severity Index (ISI)
    • Time Frame: Baseline; after 4 weeks of intervention; and 2 months after the end of intervention
    • Measures self-reported insomnia severity; total score range = 0-28 (higher total score = worse insomnia)

Participating in This Clinical Trial

Inclusion Criteria

  • Veterans Exclusion Criteria:

  • History of bipolar disorder – History of macular degeneration – Non-English speaking – Decisionally impaired – Currently using a light box

Gender Eligibility: All

Minimum Age: 18 Years

Maximum Age: N/A

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • Portland VA Medical Center
  • Collaborator
    • Oregon Health and Science University
  • Provider of Information About this Clinical Study
    • Principal Investigator: Miranda M Lim, Staff Physician and Assistant Professor – Portland VA Medical Center
  • Overall Official(s)
    • Miranda M Lim, MD, PhD, Principal Investigator, Portland VA Medical Center
  • Overall Contact(s)
    • Miranda M Lim, MD, PhD, 503-220-8262, lmir@ohsu.edu

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