Transforming Research and Clinical Knowledge in Traumatic Brain Injury Epileptogenesis Project (TRACK-TBI EPI)

University of Pennsylvania

Status: Active, not recruiting

Conditions: Post-traumatic Epilepsy; Traumatic Brain Injury

Treatments: Procedure: 3T Magnetic Resonance Imaging (MRI); Procedure: EEG; Behavioral: In-Person Outcome Assessment; Behavioral: Clinical Visit; Behavioral: Telephone Outcome Assessment; Procedure: Blood Draw

Study type: Observational

Funder types: Other; Other U.S. Federal agency

Identifiers

NCT05823766

834420

Details and patient eligibility

About

The overarching goal of this study is to improve understanding of the long-range natural history of TBI and post-traumatic epilepsy (PTE) by extending follow-up of a previously enrolled cohort (TRACK-TBI) beyond the first 12 months after injury.

Full description

This longitudinal observational study is part of the Transforming Research and Clinical Knowledge in Traumatic Brain Injury (TRACK-TBI) initiative, a multi-institutional project designed to characterize the acute and longer-term clinical, neuroimaging, and blood biomarker features of TBI. TRACK-TBI enrolled TBI patients at 18 Level 1 Trauma Centers in the US, across the age and injury spectrum. This study will extend the follow-up period for TRACK-TBI participants. The extensive clinical, imaging, and biomarker data that has already been collected in these TRACK-TBI participants, in combination with the extended longitudinal data, will allow for the identification of risk factors, co-morbidities, and prognostic biomarkers of TBI. Consequently, the extension of study follow-up will help to determine negative neurological and psychological outcomes of individuals who experienced a TBI compared to healthy and orthopedic controls.

The TRACK-EPI project aims to address the gaps in the existing literature and in the TRACK project regarding PTE. Post-traumatic epilepsy (PTE) is a common complication of traumatic brain injury (TBI), occurring in up to 20% of civilian patients and as many as 50% of military service members who suffer severe brain trauma, and 3-5% of those who suffer moderate TBI. Epilepsy resulting from brain trauma is often difficult to control with medical therapy, and is the cause of epilepsy in approximately 5% of patients referred to specialized epilepsy centers. PTE can be the result of TBI of any severity, although the risk is higher from severe TBI. PTE can arise through a variety of mechanisms, which may co-exist within a single patient. Focal brain injury, which results from penetrating trauma or focal contusions can result in epileptogenesis. Closed head injury can also produce diffuse injury, with shearing of axons and blood vessels, diffuse edema and ischemia, and secondary cellular damage through the release of inflammatory mediators. The clinical features of epilepsy, such as the frequency and severity of seizures, prevalence of associated co-morbidities, and responsiveness to therapy, may differ among these diverse mechanisms. Additionally, the neurophysiologic and imaging features of epileptogenicity also likely differ. Given the frequency of PTE, a more complete understanding of PTE etiology and prognosis is vital. Furthermore, it is likely that a sophisticated understanding of the subtypes of epilepsy resulting from brain trauma will be required to successfully develop anti-epileptogenic therapies.

Enrollment: 300 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

Cohort TBI subjects with PTE

1. Participation in TRACK-TBI Observational Study (Penn IRB # 825503 or local IRB) and/or Spreading Depolarizations II (SDII) (Penn IRB # 828395 or local IRB) who are at least two years post-injury and completed at least 1 GOSE during the TRACK-TBI follow-up assessments

2. Must complete at least one Telephone Assessment (and a recruitment phone call)

3. Endorsed any one of four post-traumatic epilepsy (PTE) items from the Patient Interview at the 6 month or later TRACK-TBI follow-up assessment, and did not have a diagnosis of epilepsy prior to the index TBI

4. Ability of participant or legally authorized representative to provide informed consent Cohort Orthopedic Controls

5. Participation in TRACK-TBI Observational Study (Penn IRB # 825503 or local IRB) and/or Spreading Depolarizations II (SDII) (Penn IRB # 828395 or local IRB) who are at least two years post-injury and completed at least 1 GOSE during the TRACK-TBI follow-up assessments 2. Must complete at least one Telephone Assessment (and a recruitment phone call) 3. Endorsed any one of four post-traumatic epilepsy (PTE) items from the Patient Interview at the 6 month or later TRACK-TBI follow-up assessment, and did not have a diagnosis of epilepsy prior to the index TBI 4. Ability of participant or legally authorized representative to provide informed consent 5. Initial TRACK-TBI orthopedic injury Cohort Friend Controls

6. Participation in TRACK-TBI Observational Study (Penn IRB # 825503 or local IRB) who are at least two years post-enrollment and completed at least 1 MRI during the TRACK-TBI follow-up assessments

7. Ability of participant or legally authorized representative to provide informed consent Participation in TED: Friend Controls Study (IRB # 827537)

Exclusion criteria

1. Epilepsy diagnosed prior to index TBI

Trial design

300 participants in 4 patient groups

Telephone Assessment Battery

Description:

TRACK-TBI participants may complete up to three annual telephone calls to assess outcome status and screen for PTE. These assessments will determine eligibility for the in-person study visit.

Treatment:

Behavioral: Telephone Outcome Assessment

Comprehensive Assessment Battery (CAB)

Description:

Participants who demonstrate decision-making capacity will be asked to complete the Comprehensive Assessment Battery (CAB). The CAB in-person is comprised of measures of cognition (i.e. attention, memory, information processing speed, executive functions), mood (i.e., depression, anxiety), social participation, subjective well-being, post-traumatic stress, interviews, global functional status measures, and a COVID-19 questionnaire.

Treatment:

Procedure: Blood Draw

Behavioral: Clinical Visit

Behavioral: In-Person Outcome Assessment

Procedure: EEG

Procedure: 3T Magnetic Resonance Imaging (MRI)

Abbreviated Assessment Battery (AAB)

Description:

Participants who do not have decision-making capacity will be asked to complete a modified assessment battery, called the Abbreviated Assessment Battery (AAB). The AAB in-person assessment will administer the Speech Intelligibility, GOAT, and CAP and/or CRS-R to study participants.

Treatment:

Procedure: Blood Draw

Behavioral: Clinical Visit

Behavioral: In-Person Outcome Assessment

Procedure: EEG

Procedure: 3T Magnetic Resonance Imaging (MRI)

TED Friend Controls

Description:

Participants enrolled in the TBI Endpoints Development (TED) cohort from 2017-2019 who did not experience a TBI prior to affiliated enrollment in TRACK-TBI will be asked to complete an assessment battery.

Treatment:

Procedure: Blood Draw

Behavioral: In-Person Outcome Assessment

Procedure: 3T Magnetic Resonance Imaging (MRI)