Longitudinal Assessment of Traumatic Microvascular Injury-2
LATMI-2
1 other identifier
observational
110
1 country
1
Brief Summary
The goal of this observational study is to learn about changes in the brain of patients over the first 3 years following a traumatic brain injury (TBI). The main question it aims to answer are: \- How TBI effect the rate of brain tissue loss compare to healthy brain Participants will give blood samples, complete MRI scans, and neuropsychological assessment measures. Researchers will compare results between healthy control group and TBI group to determine changes in injured brains.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Feb 2022
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 1, 2022
CompletedFirst Submitted
Initial submission to the registry
February 2, 2023
CompletedFirst Posted
Study publicly available on registry
February 13, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 1, 2027
March 31, 2026
March 1, 2026
5.1 years
February 2, 2023
March 30, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Brain Atrophy
Rate of brain tissue volume loss quantified from serial brain MRI examinations
3 years
Study Arms (2)
TBI Patient
Healthy Control
Eligibility Criteria
TBI subjects will be recruited directly from University of Pennsylvania Health System during their hospital stay. Healthy control subjects will be recruited via clinical practices, referring physicians, advertisements, Penn media services, social media avenues, iConnect, and community flyer.
You may qualify if:
- Age 18-65, inclusive
- History of non-penetrating TBI of at least moderate severity (defined by evidence of trauma-related neuroimaging abnormality on cranial computerized tomography (CT) scan.
- High-velocity, high-impact injury mechanism consistent with diffuse axonal injury (e.g., motor vehicle accident, fall from height, etc.)
- Immediate loss of consciousness (cases with delayed loss of consciousness due to expanding lesions will be excluded)
You may not qualify if:
- History of premorbid disabling neurological or psychiatric disease (such as epilepsy, brain tumors, meningitis, cerebral palsy, encephalitis, brain abscesses, vascular malformations, cerebrovascular disease, Alzheimer's disease, multiple sclerosis, HIV-encephalitis)
- History of premorbid disability condition that would interfere with outcome assessments
- Bilaterally absent pupillary Reponses
- Penetrating TBI
- Elevated intracranial pressure (≥ 17 mmHg) 6 Contradictions to contrast-enhanced MRI (e.g., ferromagnetic implants, pregnancy, allergy to gadolinium contrast, renal impairment \[GFR \< 60ml/g/m3\], claustrophobia, hemodynamic instability)
- \. Prisoners, patients in police custody 8. Objective lung disease (PaCO2 at rest \> 50 mmHg or venous serum bicarbonate \> 26 mEg/L) based on any labs available for review from patient's clinical care. Note that these will not be checked solely for study purposes 9.Requiring portable oxygen at enrollment 10. Chronic heart failure, severe pulmonary disease 11. Current substance abuse that precludes participation and follow-up in the study, as determined by the study investigators 12. If there is medical or other disability that precludes completion of the study procedures as determined by the study investigators
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Pennsylvanialead
- National Institutes of Health (NIH)collaborator
Study Sites (1)
University of Pennsylvania
Philadelphia, Pennsylvania, 19041, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 2, 2023
First Posted
February 13, 2023
Study Start
February 1, 2022
Primary Completion (Estimated)
March 1, 2027
Study Completion (Estimated)
March 1, 2027
Last Updated
March 31, 2026
Record last verified: 2026-03