Translocator Protein and Inflammation After Traumatic Brain Injury
|ClinicalTrials.gov Identifier: NCT01547780|
Recruitment Status : Completed
First Posted : March 8, 2012
Last Update Posted : April 30, 2018
- People with traumatic brain injury (TBI) often have inflammation in the brain. A protein called the translocator protein (TSPO) is often present with inflammation. Researchers want to see if a radioactive chemical known as [11C]PBR28 can be used to study TSPO and inflammation in the brain of people with TBI.
- To test whether [11C]PBR28 can be used to study changes in the brain after a traumatic brain injury.
- Individuals at least 18 years of age who have had TBI and have had a brain scan that shows signs of inflammation.
- Healthy volunteers at least 18 years of age.
- Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected.
- All participants will have two brain scans during an outpatient visit. A magnetic resonance imaging scan will study brain activity. A positron emission tomography (PET) scan will use [11C]PBR28 to look for signs of TSPO and brain inflammation.
- Participants with TBI will have two PET scans within 10 days of the head injury, and a PET scan around 90 days after the injury. They may also have MRI scans under this or another study. Tests of thinking, memory, and concentration will be used to study the effects of the injury and inflammation
|Condition or disease||Intervention/treatment||Phase|
|Traumatic Brain Injury Healthy||Radiation: PET||Phase 1 Phase 2|
Show Detailed Description
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||52 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||None (Open Label)|
|Official Title:||PET Imaging of Translocator Protein in Subjects With Traumatic Brain Injury|
|Study Start Date :||January 20, 2012|
|Actual Primary Completion Date :||September 28, 2017|
|Actual Study Completion Date :||September 28, 2017|
- Binding of [(11)C]PBR28.
- Neurocognitive assessment scores and clinical evaluations
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01547780
|United States, Maryland|
|National Institutes of Health Clinical Center, 9000 Rockville Pike|
|Bethesda, Maryland, United States, 20892|
|Principal Investigator:||Masahiro Fujita, M.D.||National Institute of Mental Health (NIMH)|