Study Participation

Improving the lives of service members with traumatic brain injury (TBI) requires a team effort and, if possible, we’d love your help.

We’re passionate about research because it can enhance the lives of persons affected by TBI. Study participation is vital because it enables these enhancements to become a reality for those in need. We deeply value our relationships with prospective, current, and past study participants—we couldn’t exist without their help. To date, we’ve enrolled over 9,000 research participants, the majority of whom are Service Members from all over the U.S. Our clinical studies are divided into two main categories:

1. Observational/natural history studies

2. Interventional trials

Observational studies assess participants as they are. They are not given an added treatment or drug. Participants in these studies might undergo neuroimaging evaluations, blood draws, and/or medical assessments. The information gathered from these studies improves our understanding of TBI and identifies possible avenues to explore in clinical trials. Interventional trials test the efficacy of therapies, drugs, or other treatments. Persons in these studies might participate in treatments that involve bright light therapy, virtual reality, or the use of smart phone-based mobile applications.  

Finding a clinical study that’s best suited for your needs can be confusing and time-consuming. We wanted to make this easier for you, so we created a user-friendly registry called TBI Research Opportunities and Outreach for Participation in Studies (TROOPS).

Our TROOPS registry connects individuals who are interested in participating in TBI and PTSD-focused research with studies that meet their specific interests and needs. By participating in TROOPS, you’ll only receive information about studies you’re eligible for. Signing up to be a part of the TROOPS registry is quick, simple, confidential, and completely non-obligatory. You’re never required to participate in any of the studies you receive notice about. Learn more about TROOPS by visiting its website at

How do I join a study? What is study participation like? What are my rights as a research participant? Detailed answers to these questions and many more can be found on our clinical studies website at If you’d like to speak with a member of our team, please email us at or call 1-855-824-2676. Thank you for your interest in making a difference in the lives of service members with TBI.