Improving Sleep, Sleep-related Outcomes, and Biomarkers in Veterans

Study overview

The primary purpose of this project is to determine the effect of morning bright light therapy (MBLT) on sleep in Veterans with traumatic brain injury (TBI). Secondarily, the project aims to identify blood-based brain biomarkers (BBBM) associated with sleep in Veterans. Specific Aim 1. Determine the effect of MBLT on sleep quality in Veterans (primary outcome). Specific Aim 2. Determine the effect of MBLT on downstream effectors of improved sleep, including cognition, mood, and quality of life measures in Veterans (exploratory outcomes). Specific Aim 3. Determine the effect of MBLT on levels of specific BBBM related to sleep, and whether changes in specific BBBM predict response to MBLT (secondary outcome). This study can now be completed 100% remotely.

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.

For general information about clinical research, read Learn About Studies.

Collaborators and Investigators

Portland VA Medical Center,

Miranda Lim, MD, PhD, PRINCIPAL_INVESTIGATOR, Portland VA

Study Record Dates

2025-08-01