Observational Study of Cortical Spreading Depression in Human Brain Trauma (COSBID-TBI)
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ClinicalTrials.gov Identifier: NCT00803036 |
Recruitment Status :
Completed
First Posted : December 5, 2008
Last Update Posted : January 31, 2018
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Since the primary damage from traumatic brain injury (TBI) is irreversible, the focus of medical management of TBI is preventing secondary injury that can be life-threatening and worsen patient outcome. Insight into the pathologic mechanisms of secondary injury, which are largely unknown, is required for developing better treatments.
In preliminary studies, the investigators have found that a pathologic brain activity, known as spreading depression, recurs in a large number of TBI patients in the first week after injury. Spreading depressions are short-circuits of brain function that arise spontaneously from an injury and spread repeatedly as waves into neighboring brain tissue. Animal research has shown that spreading depressions can cause secondary injury to the brain.
The primary objective of this observational study is to determine whether the occurrence or severity of spreading depression is related to worse neurologic recovery from TBI. Results from the study will determine whether monitoring of spreading depression should be used as a guide or target for improved medical management of the TBI patient.
Condition or disease |
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Traumatic Brain Injury |
Study Type : | Observational |
Actual Enrollment : | 165 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
Official Title: | Spreading Depressions as Secondary Insults After Traumatic Injury to the Human Brain |
Actual Study Start Date : | January 2009 |
Actual Primary Completion Date : | September 2013 |
Actual Study Completion Date : | September 2014 |

- Incidence of spreading depressions as assessed by continuous electrocorticography for 3-7 days after surgery. Primary neurologic outcome will be measured by the Glasgow Outcome Score - Extended. [ Time Frame: Six months post-TBI. ]
- Post-traumatic epilepsy questionnaire. [ Time Frame: 6, 12, and 24 months post-TBI ]

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Ages Eligible for Study: | 18 Years to 80 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- 18-80 years old
- diagnosis of TBI
- craniotomy performed as per required treatment of TBI
- craniotomy surgery < 7 days after TBI
- GCS<13 at time of decision for surgery
- expected neuromonitoring for >72 hr
Exclusion Criteria:
- any failure to meet above criteria
- pregnancy
- GCS 3 with fixed, dilated pupils

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00803036
United States, Florida | |
University of Miami | |
Miami, Florida, United States, 33136 | |
United States, Ohio | |
University of Cincinnati | |
Cincinnati, Ohio, United States, 45219 | |
United States, Pennsylvania | |
University of Pittsburgh Medical Center | |
Pittsburgh, Pennsylvania, United States, 15213 | |
United States, Virginia | |
Virginia Commonwealth University | |
Richmond, Virginia, United States, 23298 | |
United Kingdom | |
King's College Hospital | |
London, United Kingdom, SE5 9RS |
Principal Investigator: | Jed A. Hartings, PhD | University of Cincinnati |
Responsible Party: | Jed Hartings, Associate Research Professor, University of Cincinnati |
ClinicalTrials.gov Identifier: | NCT00803036 |
Other Study ID Numbers: |
08-96-12-01 CDMRP-W81XWH-08-2-0016 |
First Posted: | December 5, 2008 Key Record Dates |
Last Update Posted: | January 31, 2018 |
Last Verified: | January 2018 |
spreading cortical depression electroencephalography traumatic brain injury |
intensive care vascular hypotension intracranial hypertension |
Brain Injuries Brain Injuries, Traumatic Depression Wounds and Injuries Behavioral Symptoms |
Brain Diseases Central Nervous System Diseases Nervous System Diseases Craniocerebral Trauma Trauma, Nervous System |