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

> **NCT03968874** · NA · ACTIVE_NOT_RECRUITING · sponsor: **Portland VA Medical Center** · enrollment: 300 (estimated)

## Conditions studied

- Traumatic Brain Injury

## Interventions

- **DEVICE:** Light box therapy
- **DEVICE:** Negative Ion Generator

## Key facts

- **NCT ID:** NCT03968874
- **Lead sponsor:** Portland VA Medical Center
- **Sponsor class:** FED
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2019-08-01
- **Primary completion:** 2025-12-01
- **Final completion:** 2025-12-01
- **Target enrollment:** 300 (ESTIMATED)
- **Last updated:** 2025-11-14

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03968874

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03968874, "Improving Sleep, Sleep-related Outcomes, and Biomarkers in Veterans". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT03968874. Licensed CC0.

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