Clinical Research Directory

The DIAGNOSE CTE Research Project-II

Each year, millions of people are exposed to repetitive head impacts (RHI) through contact sports. RHI can result in concussions and asymptomatic non-concussions to confer risk for Alzheimer's disease (AD) and related dementias (ADRD) including chronic traumatic encephalopathy (CTE). Presently, a diagnosis of CTE can only be rendered at autopsy and it has been neuropathological diagnosed in several hundreds of American football players particularly those who played at elite levels (college and professional). The ability to make an accurate diagnosis of CTE is needed to facilitate research on risk factors, mechanisms, prevention, and treatment. In 2015, the investigators were awarded a NINDS funded 7-year U01 known as the DIAGNOSE CTE Research Project (NCT02798185) designed to develop biomarkers, characterize the clinical presentation, and examine genetic and RHI risk factors for CTE. This current 5-year NIH funded multicenter study DIAGNOSE CTE Research Project-II will build on and extend those findings.

HOme-Based Self-management and COgnitive Training CHanges Lives (HOBSCOTCH) -Post-Traumatic Epilepsy (PTE)

The purpose of this study is to assess the ability of the home-based intervention, HOBSCOTCH-PTE, to improve the quality of life and cognitive function in Service Members, Veterans and civilians with post traumatic epilepsy (PTE). This study will also assess the ability of the HOBSCOTCH-PTE program to improve quality of life in caregivers of PTE patients and to reduce caregiver burden.

Brain Injury Education and Outpatient Navigation-1stBIEN

Traumatic brain injury (TBI) is a significant problem for U.S. Hispanic children. Compared to non-Hispanic children, Hispanic children have higher long-term disability and lower health related quality of life, even though differences are not present at hospital discharge. Rehabilitation decreases disability, but needs timely initiation, and long treatments in hospitals, community healthcare facilities and schools. Parents play a key role in their child's recovery. Hispanic parents face additional barriers to initiate and maintain outpatient treatments. They report knowledge gaps in TBI-education, community, and school support systems; language and health literacy barriers. The investigators developed, a bilingual bicultural theory-based program for Hispanic families consisting of Brain Injury Education and outpatient care Navigation (1st BIEN). It integrates in-person education enriched by video content delivered through mobile phones, with navigation during transitions to outpatient care and school return. The pilot established feasibility and acceptability of the program. This randomized control trial will determine efficacy to maintain long-term adherence to rehabilitation and reduce disability. It will enroll 150 parent-child dyads: children (6-17 y), with mild-complicated, moderate-severe TBI in 5 centers in Washington, Texas, Dallas, Utah and Oregon and their parents. Intervention group parents receive: One in-person education session, plus bi-weekly videos tailored to the child's TBI and therapies; and, 3-months of bilingual outpatient care navigation. Attention control parents receive one in person-education session, monthly well-child texts and usual institutional follow up care. Primary outcome is treatment adherence at 6 months post-discharge measured by percentage of follow-up appointments attended during the prescribed time at hospitals, and community care facilities. Secondary outcomes are functional status of the child using PROMIS parental report measures; and parental health literacy, self-efficacy, and mental health at 3, 6, and 12 months after discharge. Child's academic performance will be assessed using school records. The study evaluates a flexible and scalable intervention using mobile phones to aid transitions of care, improve treatment adherence and TBI outcomes. It addresses the needs of an understudied population and can serve as a model for TBI family centered care for at risk groups.

Brain Oxygen Optimization in Severe TBI, Phase 3

BOOST3 is a randomized clinical trial to determine the comparative effectiveness of two strategies for monitoring and treating patients with traumatic brain injury (TBI) in the intensive care unit (ICU). The study will determine the safety and efficacy of a strategy guided by treatment goals based on both intracranial pressure (ICP) and brain tissue oxygen (PbtO2) as compared to a strategy guided by treatment goals based on ICP monitoring alone. Both of these alternative strategies are used in standard care. It is unknown if one is more effective than the other. In both strategies the monitoring and goals help doctors adjust treatments including the kinds and doses of medications and the amount of intravenous fluids given, ventilator (breathing machine) settings, need for blood transfusions, and other medical care. The results of this study will help doctors discover if one of these methods is more safe and effective.

Traumatic Injury Clinical Trial Evaluating Tranexamic Acid in Children: An Efficacy Study

Trauma is the leading cause of death and disability in children in the United States. The objective of this study is to evaluate the benefits and harms of tranexamic acid (TXA; a drug that stops bleeding) in severely injured children with hemorrhagic brain and/or torso injuries. Using thromboelastography, we will measure baseline fibrinolysis to assess for treatment effects of TXA at different levels of fibrinolysis.

Morning Bright Light to Improve Sleep Quality in Veterans

One of the principal complicating factors associated with traumatic brain injury (TBI) is sleep-wake disturbances (e.g., insomnia, excessive daytime sleepiness, and circadian rhythm sleep disorders). Morning bright light therapy (MBLT) has been shown to improve sleep quality in a variety of conditions, but little has been done investigating the utility of MBLT in improving sleep in Veterans with TBI. This proposal aims to determine the effect of MBLT on sleep quality in Veterans with TBI. Veterans with and without TBI will be recruited from the VA Portland Health Care System. Baseline questionnaires and 7 days of actigraphy will be collected prior to engaging in 60 minutes of MBLT daily for 4 weeks, during which actigraphy will also be collected continuously. Post-MBLT questionnaire data will be collected, and follow-up questionnaire data will be collected at 3 months post-MBLT.

Remotely Supervised tDCS+ for Complex Attention in mTBI (Cognetric)

The proposed study will evaluate a new approach to cognitive rehabilitation of mTBI using a brain stimulation technique called "Remotely Supervised Transcranial Direct Current Stimulation combined with Cognitive Training" (RS-tDCS+) which has shown promise for improving complex attention in both healthy and clinical populations. RS-tDCS+ is a home-based, low-risk, non-invasive technique that is designed to boost cognitive training by enhancing learning and the brain's ability to reorganize connections. This study will evaluate RS-tDCS+ for improving complex attention in Active Duty Service Members (ADSM) and Veterans with a history of mTBI. Different tests of complex attention and symptom questionnaires will be used to determine the effects of real versus sham (placebo) RS-tDCS+. Second, the investigators will investigate electrical and connectivity changes in the brain associated with RS-tDCS+ using electroencephalogram (EEG) and magnetic resonance imaging (MRI). Third, the investigators will investigate the lasting effects of any observed changes by evaluating participants at 1 and 6 weeks post-treatment. Lastly, the investigators will explore the impact of individual differences (e.g., PTSD, depression, sleep quality, time since injury, baseline impairment, age, sex, ADSM versus Veteran) on treatment outcome.

Mild TBI Assessment & Rehabilitation

One of the most pressing concerns within the VA currently is the provision of interventions that address the cognitive as well as emotional problems faced by Veterans with mild TBI and comorbid conditions. When completed, these studies will inform us whether training core attentional self-regulatory control functions via personally-relevant activities will be effective in improving daily life for Veterans with mild TBI and comorbid conditions. The study design will provide a test not only of potential benefits for real life functioning, but also determine to what extent these benefits are related to actual changes in cognitive/behavioral performance and brain networks corresponding to these functions. This project will provide a foundation for future studies to investigate the neural mechanisms that support improvements of cognition and behavior in mTBI.

Automated Robotic TCD in Traumatic Brain Injury

This study's objective is to determine the safety, feasibility and efficacy of prolonged automated robotic TCD monitoring in critically ill patients with severe TBI across multiple clinical sites with varying levels of TCD availability and experience

Proteomics of Brain Trauma-associated Elevated Intracranial Pressure (ICP)

The specific aim of this research is to determine if the blood from brain-injured patients contains reproducible protein markers that appear prior to elevations in intracranial pressure (ICP).

NEUROBALANCE Training to Improve Postural Control in Individuals With Traumatic Brain Injury

Our proposed study, \"NEUROBALANCE,\" aims to evaluate the effectiveness of a combined intervention involving robotic balance training and noninvasive brain stimulation in improving balance functions in individuals with chronic traumatic brain injury (TBI). The study will recruit 45 participants who have had a TBI for over six months and experience persistent balance deficits. Participants will be randomized into three groups: (1) robotic balance training with active brain stimulation, (2) robotic balance training with sham brain stimulation, and (3) standard-of-care rehabilitation. The study will involve 12 training sessions over four weeks, with assessments conducted at baseline, post-training, and two months post-training to evaluate balance recovery and retention. The primary focus is understanding how this intervention affects brain and muscle activity during balance tasks and how these changes translate into functional improvements in clinical outcome measures of balance function. Additionally, participant feedback on brain stimulation and exercise engagement will be collected to inform future studies. This research is particularly relevant to military service members, as TBI and balance impairments are common among this population. The findings may guide the development of personalized training protocols and contribute to broader rehabilitation strategies.

HITT for the Identification of Mild Traumatic Brain Injury

Rebion has developed a device, the Rebion trauma tool (referred to as the head and intraocular trauma tool, or "HITT"), that detects ocular fixation and alignment using a binocular retinal scan. Preliminary data obtained from hospitalized patients with a clinically-confirmed traumatic brain injury (TBI) and uninjured controls indicates that the device can detect changes in ocular fixation, alignment, and saccades that are related to brain injury. This study seeks to evaluate the ability of the Rebion trauma tool to assess perturbations in eye movements resulting from TBI. The study will enroll 100 TBI patients and 100 controls.

Mobile Subthreshold Exercise Program for Concussion--R01

Approximately 1.9 million youth sustain a concussion each year, and up to 30% experience persistent post-concussive symptoms (PPCS) such as headache, dizziness, and difficulty focusing that continue for weeks or months. PPCS results in greater utilization of sub-specialty care and can impact immediate and long-term social development, cognitive function and academic success. Previous recommendations for treating PPCS have focused on cognitive and physical rest, but more recently guidelines have shifted based on new research suggesting the benefit of rehabilitative exercise for PPCS. The rationale behind using exercise to treat youth with concussion is that gradually increasing physical activity facilitates return to full function. Rehabilitative exercise has since become one of the most common approaches to treating youth with PPCS, but access is challenging since most programs require weekly centralized visits with a concussion specialist. To bridge this gap, the investigators developed a telehealth-delivered approach to treat PPCS, utilizing physical activity trackers (Fitbits) and weekly video conferences with trained research staff. They then conducted a series of pilot studies with this approach, finding excellent feasibility, acceptability, and evidence for more rapid declines in concussive symptoms compared to controls. The investigators also found preliminary evidence that mechanisms behind this intervention may stem from both physiologic processes due to increased moderate-to-vigorous physical activity (MVPA) and psychologic processes such as reducing fear- avoidance of concussive symptoms. They now propose a fully-powered randomized controlled trial (RCT) to asses the efficacy of the "Mobile Subthreshold Exercise Program" (M-STEP) for treating youth with PPCS.

mTBI Identification and Monitoring Through Retinal Scanning

Rebion has developed a device, the Rebion trauma tool (referred to as the head and intraocular trauma tool, or "HITT"), that detects ocular fixation and alignment using a binocular retinal scan. Preliminary data obtained from hospitalized patients with a clinically-confirmed traumatic brain injury (TBI) and uninjured controls indicates that the device can detect changes in ocular fixation, alignment, and saccades that are related to brain injury. This study seeks to evaluate the ability of the Rebion trauma tool to assess perturbations in eye movements resulting from TBI. The study will enroll 60 TBI patients and 20 controls.

Head and Intraocular Trauma Tool for the Identification of Mild Traumatic Brain Injury

Rebion has developed a device, the Rebion trauma tool (referred to as the head and intraocular trauma tool, or "HITT"), that detects ocular fixation and alignment using a binocular retinal scan. Preliminary data obtained from hospitalized patients with a clinically-confirmed traumatic brain injury (TBI) and uninjured controls indicates that the device can detect changes in ocular fixation, alignment, and saccades that are related to brain injury. This study seeks to evaluate the ability of the Rebion trauma tool to assess perturbations in eye movements resulting from TBI. The study will enroll 100 TBI patients and 100 controls.

Early Myofascial Manual Treatment in Subjects With Spasticity Following Acquired Brain Injury

Spasticity is characterized by an increase in muscle tone that is velocity-dependent and caused by the exaggeration of the stretch reflex. Clinically, it is found in 70-85% of patients with spinal cord injury at one year, 40-45% in patients with stroke at 12 months, and 25% in patients with traumatic brain injury at one year. The term 'Severe Acquired Brain Injury' refers to a condition characterized by brain damage that causes a coma with an acute phase score of 8 on the Glasgow Coma Scale (GCS), lasting more than 24 hours. It may be caused by vascular, traumatic, anoxic, infectious, toxic-metabolic, or neoplastic damage, which can cause multiple and complex sensory, cognitive, and behavioral impairments that lead to significant disability. Spasticity occurs frequently in patients with GCA, often at an early stage, with serious repercussions on the rehabilitation process and outcome. Numerous studies indicate that spasticity due to neurological damage is supported, in addition to hyperexcitable stretch reflexes, by changes in the connective tissues of the peripheral limbs that increase muscle resistance to passive movement. After neurological damage, and starting 1 week after immobilization, alterations in the muscles and connective tissue can be observed: changes in the muscle fibers, changes in the collagen tissue, and changes in the properties of the tendons. It is believed that the quantitative and qualitative changes in the intramuscular connective tissue contribute to the deterioration of the properties and functions of the immobilized muscle, which contributes to the establishment and progression of spasticity. In patients with spastic paresis, therapeutic interventions are intended to prevent prolonged shortening of the muscles and mobilize the affected areas. According to recent research, the connective tissue is particularly sensitive to mechanical stress, particularly deep manual manipulation and vibration. Several studies have suggested that myofascial release therapy can be a complementary treatment in patients with neurological disorders to reduce muscle spasticity and increase joint mobility. Myofascial release techniques can be hypothesized to be a valid integrated treatment for spasticity in patients with sequelae from GCA, but their use in this area has been little studied and no studies have been conducted in the post-acute period of intensive hospitalization. The purpose of the present study is to determine whether manual myofascial release techniques, applied to the upper and lower limbs, are safe, tolerable, and effective in modifying the degree of spasticity and improving functional activity in patients with GCA. Additionally, changes in muscle structure will be evaluated by ultrasound: cross-sectional area, anteroposterior diameter, and pennation angle. Finally, we will measure the effects of manual myofascial treatment stimulation by measuring electrodermal activity (EDA), which is a non-invasive method in which an electrode bracelet is applied to the patient's right wrist to measure the electrical conductance of the skin, which is a function of the autonomic nervous system, which is controlled by the sweat glands. Various sensory stimulations, including visual, auditory, olfactory, tactile, vestibular, and proprioceptive stimulations, can produce a physical sensation that can influence the patient's sensorimotor output, resulting in physiological changes in the activity of the ANS as a consequence of the processing of sensory afferents. A response to an appropriate sensory stimulus can be regarded as a manifestation of a change in consciousness.

The Value of Combined Detection of Different Blood Biomarkers in the Diagnosis and Treatments of Traumatic Brain Injury

TBI, as a potential risk factor, causes a 1.5 times higher risk of neurodegenerative disease to up to 30-70% of TBI patients with neurological symptoms. Brain trauma is an important global medical, public health and social problem. Early diagnosis and effective treatment can effectively reduce the disability rate of patients and the incidence of neurological sequelae, and has increasingly become the focus of the international scientific research community. Exploring blood-based biomarkers has potential clinical value, which can greatly help clinicians to evaluate patients' conditions and develop reasonable plans, and then improve the clinical management and treatment of patients with craniocerebral trauma. Further research work is needed to be done to identify the most effective and efficient biomarker or combination marker strategies for integration into clinical treatment.

Online Memory Intervention for Individuals with Traumatic Brain Injury

This study will examine the behavioural and neurophysiological efficacy and feasibility of an online spatial navigation intervention for improving memory and brain health in individuals who have sustained moderate-severe traumatic brain injury.

Wellness and Quality of Life Perceptions of People With Traumatic Brain Injury

Telerehabilitation is a service delivery method that has grown substantially in recent years. It has both advantages and disadvantages in comparison to clinic-based services. For example, telerehabilitation is advantageous for people residing in locations in which specialized rehabilitation services are scarce; however, it has the disadvantage of being dependent on reliable internet connections that are not available in all locations. Also, some people prefer the privacy afforded by receiving treatment in their home, but other people prefer the interaction with other clients with similar challenges afforded by attending sessions in clinic-based settings. Other questions about advantages and disadvantages of telerehabilitation remain unexplored. One such question is the focus of this research and concerns the effect of receiving post-acute telerehabilitation services versus clinic-based services on the general well-being and quality of life experienced by people with traumatic brain injury. The study purpose is to compare changes in wellness and quality of life occurring over a four-month period during which people with traumatic brain injury receive post-acute services either via telerehabilitation or at an outpatient facility.

Gait Training Through a Novel Over-ground Wearable Robotic System in People with Pyramidal Hemisyndromes

Over-ground exoskeletons for gait rehabilitation are studied enough in people suffering spinal cord injury, and its clinical use is escalating in the industrialized countries. Nevertheless, studies on gait rehabilitation through exoskeletons in subjects with Pyramidal Hemisyndrome (PH) are recognized by GRADE as Low Quality of evidence. This interventional longitudinal pilot study is aimed to investigate the feasibility, clinical effects, and compliance (from the experienced therapists (Indego Specialists)' point of view) of using an over-ground wearable robotic system (Indego) for gait rehabilitation of people with PH in the clinical practice. Two substudies will be conducted with the following aims: to explore changes in the gait pattern and muscle activity following Indego-assisted gait rehabilitation through the kinematic gait analysis (in subjects able to walk) associated with surface electromyography (sEMG) of 4 muscle groups of the lower limbs; to identify prognostic factors for walking recovery, investigating also the effect of the treatment on functional connectivity through the electroencephalographic (EEG) analysis. In order to satisfy the study aims, 30 subjects with PH and walking impairment will be recruited and assessed both clinically and instrumentally (in case of substudies) at the beginning (T0) and the end (T1) of the treatment period.

Ketamine in Acute Brain Injury Patients.

Although, in the past years, an increasing use of ketamine in Traumatic Brain injury (TBI) has been reported as an adjunct to other sedatives, there is no evidence from randomized clinical trial to support this practice. The BIKe (Brain Injury and Ketamine) study is a double-blind placebo controlled randomized multicenter clinical trial to examine the safety and feasibility of using ketamine as an adjunct to a standard sedative strategy in TBI patients.

The HOME Program for Individuals With Traumatic Brain Injury and Family Members

This purpose of this study is to evaluate an innovative rehabilitation intervention for persons with chronic TBI-related symptoms (1 year or more post injury) and their families. The primary study aims are to 1) test the intervention's effects on patients' community reintegration, quality of life, and ability to manage self-identified TBI problems at the completion of the intervention and 2) test the intervention's effects on family caregivers' depressive symptoms, burden, and met family needs at the completion of the intervention. Based on the person-environment fit framework, HOME (Home-based Occupational-therapy and Management of the Environment) for Us is a 4-month, 8-session intervention delivered by occupational therapists in the home. HOME targets the home environment (physical and social) to realign environmental demands to individual strengths and deficits. HOME engages persons with TBI and family caregivers in strategies to manage chronic TBI symptoms or related difficulties. It educates family members to reinforce and maintain intervention strategies, and addresses family needs. HOME is distinct from standard TBI rehabilitation with respect to who (persons with TBI and families), what (targeting the environment for intervention), when (chronic phase), and where (the home). Patients with chronic TBI symptoms and their family caregivers represent a growing but underserved population. This study has the potential to benefit over 5.3 million persons who live with disabilities from TBI and their family caregivers and to transform the paradigm of care for TBI.

Autologous Stem Cell Study for Adult TBI (Phase 2b)

The purpose of this study is to determine the effect of intravenous infusion of autologous bone marrow mononuclear cells (BMMNC) on brain structure and neurocognitive/functional outcomes after severe traumatic brain (TBI) injury in adults. The primary objective is to determine if the intravenous infusion of autologous BMMNC after severe TBI results in structural preservation of global gray matter (GM) volume and white matter (WM) volume and integrity; as well as select regions of interest in the corpus callosum. THe secondary objectives are to determine if autologous BMMNC infusion improves functional and neurocognitive deficits in adults after TBI; reduces the neuroinflammatory response to TBI; evaluate spleen size and splenic blood flow over time using ultrasound and corresponding changes in inflammatory cytokines; and infusion related toxicity and long-term follow-up safety evaluations.

Buspirone and Melatonin for Depression Following Traumatic Brain Injury

Traumatic brain injuries (TBIs) are common. Post-TBI depression is associated with anxiety, aggression, fatigue, distractibility, anger, irritability, and rumination. The current research group conducted a pilot clinical trial, which investigated the novel treatment combination of buspirone and melatonin (B+MEL) in outpatients with clinical depression. Compared to placebo, B+MEL was associated with a significant improvement in depressive symptoms. Depression following TBI may be different from clinical depression. The B+MEL combination has never been studied in patients with post-TBI depression. The B+MEL has shown promise in ameliorating cognitive difficulties in people with depression. Because cognitive problems are typical in people with post-TBI depression, we plan to measure the effect of the B+MEL combination on cognitive ability in post-TBI depression. Additionally, we are interested in measuring functional magnetic resonance imaging changes before and after treatment with B+MEL in order to gain insight into the brain mechanisms of our hypothesized clinical symptom changes. The goals of the proposed pilot research project are to assess changes in symptoms in patients with post-TBI depression following Buspirone + Melatonin combination (B+MEL), and the corresponding brain mechanisms underlying these hypothesized changes by measuring: 1) depressive symptoms; 2) cognitive symptoms; 3) functional magnetic resonance imaging.