Amyloid Accumulation After Mild Traumatic Brain Injury
TBI
Observational Study for Amyloid Accumulation After Mild Traumatic Brain
1 other identifier
observational
150
1 country
1
Brief Summary
We are extending the researches of Taiwan neurosurgery traumatic brain injury (TBI) database which is led by Professor WT Chiu in Taipei Medical University and will recruit mild TBI (mTBI) participants who have ever been registered in the database. This database has been established for over 15 years and contains the information of over 150000 patients. It is one of the largest TBI database in the world. TBI usually results from traffic accidents, falls or violence events. Most of the victims are young people and the victims suffer from life-threatening and mental-physical deficits. Mild TBI (mTBI) usually was neglected before because its symptoms, signs are mild and mTBI patients usually were not obtained enough initial treatment. Therefore, mTBI might result in long-term cognitive and affective impairments, such as depression, indifference, anxiety, memory impairment, loss of attention and executive function. These late effects not only decrease the life quality of patients and their family but also increase the social and medical burden. Recent epidemiology studies have pointed out that TBI would increase the risk for dementia, especially Alzheimer disease (AD) by 2-4 times. However, the association between TBI severity, number of repeats, genetic factors and onset of AD remains further investigation. Amyloid-β (Aβ) plaques and neurofibrillary tangles are the pathological hallmarks for AD. Accumulation of Aβ is considered to be the first step of pathophysilogy of AD. Compelling researches have supported TBI accelerates the formation and accumulation of Aβ. These findings could link TBI with AD but the previous researches had limitations. There was lack of mTBI pathology data so the impacts of mTBI on Aβ accumulation were still obscure. By amyloid-PET, we could study the effects of mTBI on the accumulation of Aβ and this tool could be helpful for understanding the real impacts and pathophysiological mechanisms of mTBI on AD.
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 Oct 2012
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
October 1, 2012
CompletedFirst Submitted
Initial submission to the registry
October 15, 2012
CompletedFirst Posted
Study publicly available on registry
May 8, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
September 18, 2019
CompletedSeptember 19, 2019
September 1, 2019
6.8 years
October 15, 2012
September 17, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
amyloid accumulation by amyloid PET
amyloid PET after participation
day one
Secondary Outcomes (1)
mini-mental status examination (MMSE) for cognitive function
day one
Other Outcomes (1)
APOE genotypes
day one
Study Arms (2)
traumatic brain injury
mild traumatic brain injury
without TBI
without TBI
Interventions
mild TBI, GCS \>/=13 after traumatic brain injury
Eligibility Criteria
patients aged over 55 years with/without traumatic brain injury 1, 5, 10, 15 years ago
You may qualify if:
- a. had TBI in 1, 5, 10 and 15 years ago b. mild injury in TBI (initial GCS = 13-15) c. had MRI or CT evaluation after TBI d. aged 18 years or older (55 years better) e. have agreement and have signed the informed consent form by him/herself or his/her legal representative
You may not qualify if:
- a. participating in another clinical trials which might interfere the current finding b. not sure the timing of TBI c. contaminant the symptoms with injury, skull fracture, intracranial hemorrhage, craniotomy, and death d. moderate (initial GCS = 9-12) or severe (initial GCS \< 8) injury in TBI e. had wound with gunshot or puncture f. loss of consciousness over 30 minutes after TBI g. loss of memory for over 1 day after TBI h. have no MRI or CT evaluation of brain after TBI or have obstructive ischemia after MRI or CT evaluation i. have uremia, liver cirrhosis, heart failure, pulmonary edema, coagulation disorders and other major diseases j. pregnant woman or emotional instability k. the age less than 18 years (55 years better) l. unable to collect blood sample by peripheral vein m. determination of inappropriate participants in the clinical trail of PI
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Shuang Ho Hospital, Taipei Medical University
New Taipei City, 235, Taiwan
Related Publications (1)
Lin KJ, Hsu WC, Hsiao IT, Wey SP, Jin LW, Skovronsky D, Wai YY, Chang HP, Lo CW, Yao CH, Yen TC, Kung MP. Whole-body biodistribution and brain PET imaging with [18F]AV-45, a novel amyloid imaging agent--a pilot study. Nucl Med Biol. 2010 May;37(4):497-508. doi: 10.1016/j.nucmedbio.2010.02.003. Epub 2010 Apr 7.
PMID: 20447562BACKGROUND
Biospecimen
peripheral blood for APOE genotyping
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Chaur-Jong Hu, M.D.
Department of Neurology, Shuang Ho Hospital, Taipei medical University
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Chief, Department of Neurology
Study Record Dates
First Submitted
October 15, 2012
First Posted
May 8, 2014
Study Start
October 1, 2012
Primary Completion
August 1, 2019
Study Completion
September 18, 2019
Last Updated
September 19, 2019
Record last verified: 2019-09