Improving Sleep in Veterans With the Polytrauma Clinical Triad (LIONv2)

June 23, 2025 updated by: VA Office of Research and Development

A Sleep Intervention to Improve Quality of Life and Symptom Management in Veterans With the Polytrauma Clinical Triad

The "polytrauma clinical triad" (PCT), a highly disabling constellation of factors, is defined by the coexistence of traumatic brain injury, post-traumatic stress disorder, and chronic pain. Veterans with the PCT are medically complex, often refractory to conventional therapies, and suffer from additional related chronic sequela. Notably, sleep disturbances and cognitive impairment, which the investigators hypothesize are significant contributing factors to these functional impairments and an impediment toward rehabilitation. Thus, the investigators' research aims to intervene "at the level of sleep", and by improving sleep, improve these interconnected, disabling, and difficult to treat enduring complexities associated with the PCT - ultimately to improve Veteran quality of life, functional independence, and restorative function. The investigators predict that the proposed intervention, morning bright light therapy, which is cost-effective, rapidly deployable and home-based, will be effective in improving sleep and overall PCT symptom management, thereby, resulting in a measurable and impactful improvement in quality of life.

Study Overview

Detailed Description

The co-existence of traumatic brain injury, post-traumatic stress disorder (PTSD), and chronic pain defines the clinical entity referred to as the "polytrauma clinical triad" (PCT). Well recognized to be highly prevalent and disabling in US military service members and Veterans, those with the PCT are traditionally viewed as the most disabled cases and most refractory to conventional therapies. Central to the challenge in effectively treating Veterans with the PCT is the bi-directional, mutually reinforcing relationship between these conditions. Further complicating is the influence of sleep and cognitive impairment, both of which are widely regarded as primary contributing chronic sequela associated with the PCT. The specific contribution from sleep in exacerbating this clinical picture is supported by extensive scientific precedent demonstrating impairments in sleep intensify and worsen these related sequela (e.g., cognitive impairment, pain management, and PTSD symptom severity), which in turn, contribute to further impairment in sleep. Accordingly, an effective intervention targeting sleep may alleviate rehabilitative pressure on these associated sequelae and facilitate breaking out of this vicious cycle (i.e., poor sleep exacerbating outcomes, and in turn, further impairing sleep).

Recent work from the investigators' laboratory demonstrate promise for a simple, at home, non-pharmacologic and cost-effective, sleep focused intervention: morning bright light therapy (MBLT). The investigators have demonstrated robust feasibility, acceptability, and limited efficacy for MBLT to improve sleep, and thereby, improve cognitive function, PCT symptom management and overall quality of life in this medically complex and vulnerable population. Accordingly, this proposal aims to extend the foundational work from the CDA-2 to inform a prospective phase II placebo-controlled randomized clinical trial examining effectiveness for MBLT as a sleep- based intervention in Veterans with the PCT.

Specific aims designed to test this hypothesis are to determine effectiveness for MBLT to improve 1) sleep, 2) cognition, and 3) PCT symptom management in Veterans with the PCT. The investigators propose to enroll n=138 Veterans, randomized 2:1 to MBLT (10,000 lux light exposure for 60 min within 120 min of waking for 4-weeks) or a no- light sham-MBLT condition (as previously published using the same duration/timing). Sleep, cognition and PCT symptom management will be assessed through a novel combination of subjective/self-report, objective measures, and ecological momentary assessment sampling. Specific objective assessments include wrist- based actigraphy and as exploratory outcome in a sub-set of participants, home-based overnight polysomnography. Outcomes will be assessed pre- and post-intervention, with follow-up at 6- and 12-weeks post-intervention.

It is expected the proposed work will demonstrate effectiveness for MBLT to improve sleep, cognition, and PCT symptom management including ameliorating chronic pain and improving quality of life, in Veterans with the PCT. This project will demonstrate, 1) an effective treatment option, alone or in combination with existing rehabilitative efforts, in Veterans with the PCT, and 2) sleep-wake disturbances may be implicated in the pathogenesis of these functional impairments, thereby establishing greater precedent for targeting sleep as a meaningful primary and/or adjunctive rehabilitative therapy.

Study Type

Interventional

Enrollment (Estimated)

96

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Oregon
      • Portland, Oregon, United States, 97207-2964
        • Recruiting
        • VA Portland Health Care System, Portland, OR
        • Principal Investigator:
          • Jonathan E Elliott, PhD
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Veteran
  • English speaking with phone and internet access
  • Current self-reported sleep disturbances
  • Clinical stable for current pharmacologic or behavioral health treatments for depression, anxiety, sleep and pain
  • Documented history of TBI

Exclusion Criteria:

  • Decisional impairment and/or dementia
  • Current usage of a lightbox or negative ion generator
  • Shift work
  • History of macular degeneration and/or bipolar disorder
  • Evidence for suicidal ideation
  • Cancer diagnosis within the past 6 months
  • Surgery within the past 6 months
  • Substance abuse within the past 6-12 months
  • Significant impairing post-stroke residual hemiparesis

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Morning Bright Light Therapy
Morning bright light: Sitting in front of a lightbox for 60 minutes every morning within 120 minutes of waking up.
Morning bright light: Sitting in front of a lightbox for 60 minutes every morning within 120 minutes of waking up.
Other Names:
  • Lightbox, light therapy
Sham Comparator: Negative Ion Generator
Negative ion generator: Sitting in front of a modified negative ion generator for 60 min every morning within 120 minutes of waking up.
Negative ion generator: Sitting in front of a modified negative ion generator for 60 min every morning within 120 minutes of waking up.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Sleep Efficiency via wrist based actigraphy
Time Frame: Pre- and post-4 weeks of MBLT or sham treatment
Sleep efficiency is defined by the total time asleep divided by total time spent in bed
Pre- and post-4 weeks of MBLT or sham treatment

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Self-reported sleep quality via the Pittsburgh Sleep Quality Index
Time Frame: Pre- and post-4 weeks of MBLT or sham treatment
The Pittsburgh Sleep Quality Index is a validated questionnaire assessing metrics related to sleep quality.
Pre- and post-4 weeks of MBLT or sham treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Jonathan E Elliott, PhD, VA Portland Health Care System, Portland, OR

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 1, 2025

Primary Completion (Estimated)

December 1, 2027

Study Completion (Estimated)

September 29, 2028

Study Registration Dates

First Submitted

June 21, 2024

First Submitted That Met QC Criteria

June 21, 2024

First Posted (Actual)

June 27, 2024

Study Record Updates

Last Update Posted (Actual)

June 27, 2025

Last Update Submitted That Met QC Criteria

June 23, 2025

Last Verified

June 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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