Active clinical trials for "Brain Injuries, Traumatic"

Upwards of 3.8 million concussions occur annually in the United States. Driving is a highly complicated activity that requires visual, motor, and cognitive skills, which are commonly impaired after concussion. Yet, the time course of post-concussion driving impairment has not been characterized. There is a critical need to 1) determine when concussed individuals should return to driving and 2) identify the key concussion assessment predictors of readiness to return to driving. In the absence of formal recommendations, impaired concussed drivers are at risk to themselves and others on the road. The first specific aim is to compare simulated driving between concussed individuals and non-concussed yoked matched controls across five longitudinal timepoints (pre-injury baseline, day 2, day 4, asymptomatic, and unrestricted medical clearance) and daily naturalistic driving from day 2 to day 9. Driving recommendations must be appropriate and necessitated by concussion impairments, since excessively strict recommendations wrongfully strip concussed patients of their independence and may dissuade individuals from seeking medical care. The second specific aim is to identify widely used concussion assessment outcomes that predict simulated driving performance among concussed individuals throughout concussion recovery. To address these aims, 100 concussed and 100 yoked matched control young adult college athletes will complete a simulated driving assessment and a robust concussion assessment battery at pre-injury baseline, day 2, day 4, asymptomatic, and unrestricted medical clearance. Naturalistic driving (measured with in-car global positioning systems) will be captured from day 2 to day 9 (7 days total). This study will determine the acute and subacute time course of post-concussion driving impairment and determine key predictors of post-concussion driving performance. Results from this innovative approach will have a broad and positive impact that will improve the safety of both concussed individuals and the general population, guide the practices of health professionals, inform the future work of researchers, and substantiate the work of policy-makers by providing evidence-based recommendations for managing post-concussion driving.

Primary aim: To determine the efficacy of two dosing regimens of TXA initiated in the prehospital setting in patients with moderate to severe TBI (GCS score ≤12). Primary hypothesis: The null hypothesis is that random assignment to prehospital administration of TXA in patients with moderate to severe TBI will not change the proportion of patients with a favorable long-term neurologic outcome compared to random assignment to placebo, based on the GOS-E at 6 months. Secondary aims: To determine differences between TXA and placebo in the following outcomes for patients with moderate to severe TBI treated in the prehospital setting with 2 dosing regimens of TXA: Clinical outcomes: ICH progression, Marshall and Rotterdam CT classification scores, DRS at discharge and 6 months, GOS-E at discharge, 28-day survival, frequency of neurosurgical interventions, and ventilator-free, ICU-free, and hospital-free days. Safety outcomes: Development of seizures, cerebral ischemic events, myocardial infarction, deep venous thrombosis, and pulmonary thromboembolism. Mechanistic outcomes: Alterations in fibrinolysis based on fibrinolytic pathway mediators and degree of clot lysis based on TEG. Inclusion: Blunt and penetrating traumatic mechanism consistent with TBI with prehospital GCS ≤ 12 prior to administration of sedative and/or paralytic agents, prehospital SBP ≥ 90 mmHg, prehospital intravenous (IV) access, age ≥ 15yrs (or weight ≥ 50kg if age is unknown), EMS transport destination based on standard local practices determined to be a participating trauma center. Exclusion: Prehospital GCS=3 with no reactive pupil, estimated time from injury to start of study drug bolus dose >2 hours, unknown time of injury, clinical suspicion by EMS of seizure activity, acute MI or stroke or known history, to the extent possible, of seizures, thromboembolic disorders or renal dialysis, CPR by EMS prior to randomization, burns > 20% TBSA, suspected or known prisoners, suspected or known pregnancy, prehospital TXA or other pro-coagulant drug given prior to randomization, subjects who have activated the "opt-out" process when required by the local regulatory board. A multi-center double-blind randomized controlled trial with 3 treatment arms: Bolus/maintenance: 1 gram IV TXA bolus in the prehospital setting followed by a 1 gram IV maintenance infusion initiated on hospital arrival and infused over 8 hours. Bolus only: 2 grams IV TXA bolus in the prehospital setting followed by a placebo maintenance infusion initiated on hospital arrival and infused over 8 hours. Placebo: Placebo IV bolus in the prehospital setting followed by a placebo maintenance infusion initiated on hospital arrival and infused over 8 hours.

Traumatic brain injury is an extremely common disease, it counts 50.000 deaths and 235.000 hospitalizations every year. Functional consequences of an acquired brain injury have a considerable impact on quality of lives of patients and care-givers with direct effects on balance, mobility and on psycho-social functions. Attention deficits are one of the most frequent and disabling consequences of severe brain injury. Within the wide spectrum of attentive problems, patients with traumatic brain injury frequently have shown difficulties in divided attention. Patients, care-givers and professionals frequently refer difficulties also in selective attention and vigilance as consequence of the trauma. It has been shown how these difficulties are tightly related with the missed return to work after two years from the injury. The hypothesis of this study is to investigate the feasibility of a rehabilitative protocol on gaming using the console Xbox and its efficacy in improving balance, mobility, risk of falling, attentive functions (selective and divided attention) in subjects which have had a traumatic brain injury at least 12 months before.

This is a Phase II randomized trial designed to describe the magnitude of change between baseline and follow-up outcomes for symptom surveys and a battery of neuropsychological tests administered at time points corresponding before and after 10 weeks over observation in four groups: A military population with post-concussion syndrome (mTBI) receiving local standard care A military population with post-concussion syndrome (mTBI) receiving local standard care and sham hyperbaric oxygen sessions A military population with post-concussion syndrome (mTBI) receiving local standard care and hyperbaric oxygen at 1.5 atmospheres sessions A otherwise similar group with PTSD but no history of TBI receiving local standard care Differences and variability of the tests will be used for determining the optimum primary endpoint(s) for future trial, as well as for refinement of sample size and power calculations for these studies. The groups undergoing hyperbaric sessions will be assigned to receive HBO2 or sham using a randomized, double blind design. Active duty military (Army, Marine, Navy, Air Force) men and non-pregnant women residing in the United States and who will remain in the military for the entire study period, aged 18-65 years who have been deployed one or more times to the US Central Command since the initiation of Operation Enduring Freedom (October 7, 2001) who either: have been diagnosed with Post Traumatic Stress Disorder (PTSD) as a result of traumatic events that occurred during the qualifying CENTCOM deployment, but have no diagnosed or suspected lifetime brain injuries resulting in loss or alteration of consciousness; OR have been diagnosed with at least one mild brain injury (mTBI) with persistent (> 4 months) symptoms sustained during one or more of those deployments

This study will evaluate the effects of TT301 on cytokine levels in healthy male volunteers participating in an endotoxin challenge.

Many Service members (SM) experience executive dysfunction associated with mild traumatic brain injury symptom complex (mTBI-sc), for which they receive cognitive rehabilitation. Cognitive rehabilitation (CR) for executive dysfunction often involves metacognitive strategy instruction (MSI) to help patients self-regulate their behavior though a goal management process - identifying a goal, anticipating performance problems, generating possible solutions, self-monitoring performance during the activity, recognizing maladaptive task strategies, stopping and then modifying real-time task behavior by choosing an alternate strategy. MSI alone often does not result in improved daily functioning because it requires conscious cognitive oversight to employ (which is difficult for people with executive dysfunction) and it presumes that simply establishing goals propels goal-directed action, when for many people, this is not so. Social psychologists report that people who set implementation intentions (if-then statements that link specific situational cues with specific goal actions) are more likely to perform goal actions than those who only set goal intentions. Implementation intentions are believed to be effective because they enable people to switch from conscious-effortful reflective action control to automatic, reflexive action control associated with selected situational cues. A team of researchers from the Courage Kenny Research Center (CKRC), Traumatic Brain Injury Center at Fort Campbell, KY (TBIC-FC), and Neurofunctional Research and Consulting has developed a brief CR intervention to teach SM with mTBI-sc to set implementation intentions called ACTION (AutomatiC iniTiation of IntentiONs) sequence training. The purpose of this pilot study to evaluate: 1) the practicality of instructional methods used to teach SM with mTBI-sc to perform the ACTION sequence and 2) the efficacy of ACTION sequence training in achieving personal goals and performance on a task that challenges executive function using a small randomized controlled trial. If the results are positive, a larger study would be conducted to determine the impact of ACTION sequence training on SM performance on military-relevant tasks and goals.

The study will monitor outcomes of two interventions to develop a best practice in the treatment of mild Traumatic Brain Injury (mTBI).

Is Acceptance and Commitment Therapy (ACT) feasible and acceptable for adults with severe Traumatic Brain Injury (sTBI) in inpatient services? sTBI is associated with depression, anxiety and low self awareness. A key factor in recovery is adjustment to the effects of injury. Psychological intervention may facilitate this change; however what works is unclear. ACT seeks to improve psychological flexibility; the ability to be present with difficult thoughts and emotions, rather than fighting them, and to accept ourselves as we are, not what we believe we should be. Current research is limited, but what is published suggests it may be useful for this group. Due to the limited research this pilot study aims to conduct preliminary analysis on the acceptability and feasibility of ACT for people with sTBI whilst also examining the suitability of the study protocol in order to make recommendations for future studies. Clients and staff from three Brain Injury Rehabilitation Trust (BIRT) centres will be recruited, one of which will serve as the intervention centre. Clients in the intervention group will be asked to complete questionnaires a week before and after participation in the 6 week ACT programme. Clients in the comparison group will be asked to complete questionnaires a week before and after receiving 6 weeks of treatment as usual (TAU). The treatment group will also receive TAU. All participants will be invited to participate in a focus group at the end of this 8 week period to discuss their involvement in the study. Staff will be asked to complete a parallel version of one of the client questionnaires within a similar timeframe. In addition staff at the intervention centre will be invited to attend a focus group and complete an additional questionnaire after the eight week period.

The purpose of this study is to determine the value of Constraint-Induced Movement therapy (CIMT) for improving motor function and general fitness in adults with subacute and chronic traumatic brain injury (TBI), particularly TBI acquired during active military duty, in comparison to a Lakeshore Enriched Fitness Training (LEFT). The study will also test the effect of a set of enhanced versus "standard" procedures for transferring therapeutic gains from treatment setting to everyday life. Lastly, this study will determine whether any therapeutic effects observed are correlated with neuroplastic white matter or grey matter changes.

Background: Although glucose is essential to cerebral function, abundant experimental and clinical evidence demonstrates that endogenously released lactate, rather than glucose, is the preferential energy substrate for the brain in conditions of stress and acute injury. In patients with severe Traumatic Brain Injury (TBI) and aneurysmal subarachnoid hemorrhage (SAH) monitored with cerebral microdialysis and brain tissue oxygen (PbtO2), our preliminary data show that increased brain extracellular lactate is frequently observed. Our findings indicate that elevated brain lactate more often occurs in the absence of brain hypoxia/ischemia and is mainly the consequence of increased cerebral glycolysis, i.e. it occurs in association with high extracellular pyruvate. These data suggest that the primary source of elevated lactate is activated glycolysis and strongly support the concept that endogenously released lactate can be utilized by the injured human brain as energy substrate. They prompt further investigation to examine whether exogenous lactate supplementation can be a valuable neuroprotective strategy after TBI or SAH. Indeed, in animal models of brain injury, administration of exogenous lactate improves neuronal and cognitive recovery. Hypothesis: The investigators test the hypothesis that lactate therapy, administered during the acute phase of TBI or SAH, might exercise neuroprotective actions by restoring brain energetics and improving brain tissue PO2 and cerebral blood flow (CBF). Aim of the study: The aim of this single-center study is to examine the effect of sodium lactate infusion on cerebral extracellular metabolites, brain tissue PO2 and cerebral blood flow, measured with CT perfusion and transcranial doppler (TCD). Design: Prospective phase II interventional study examining the effect of a continuous 3-6 hours infusion of sodium lactate (20-40 µmol/kg/min), administered within 48 hours from TBI or SAH, on cerebral extracellular glucose, pyruvate, glutamate, glycerol, PbtO2 and CBF.