- Conditions
- TBI (Traumatic Brain Injury)
- Interventions
- n/a observational
- Other
- Lead sponsor
- Uniformed Services University of the Health Sciences
- Federal
- Eligibility
- 18 Years and older
- Enrollment
- 424 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014 – 2019
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
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- Conditions
- Hearing Impairment, Hearing Aid Fitting
- Interventions
- mild-gain hearing aids with high-frequency emphasis over 6-months
- Device
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 20 Years to 50 Years
- Enrollment
- 363 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2020
- U.S. locations
- 3
- States / cities
- Portland, Oregon • Pittsburgh, Pennsylvania • Sioux Falls, South Dakota