View clinical trials related to Essential Tremor.
Filter by:The human brain presents outstanding challenges to science and medicine. Brain function and structure span broad spatial scales (from single neurons to brain-wide networks) as well as temporal scales (from milliseconds to years). Currently, none of the tools available for studying the brain can fully capture its structure and function across these diverse scales - "the neuroimaging puzzle". This poses crucial limitations to understanding how the brain works, and how it is affected by numerous diseases. The central goal of this project is to expand currently available tools for non-invasive human brain imaging, to bridge critical gaps in the neuroimaging puzzle. New methodologies will be developed, focused on ultra-high field magnetic resonance imaging (UHF MRI) and its combination with electroencephalography (EEG). New contrast mechanisms and technological advances enabled by UHF MRI and EEG will be explored to allow unprecedented views into the microstructure of brain regions like the thalamus, and to capture the activity of large-scale neuronal networks in the brain with high sensitivity, temporal and spatial specificity. These advances will be directly applied to address open questions in the diagnosis and treatment of essential tremor, and psychosis. In general, improved brain imaging techniques are critical for a deeper understanding of how the brain works, and to detect and characterize diseases more effectively, thereby improving clinical management and leading to a healthier population. The non-invasive characterization and treatment of neurodegenerative diseases like tremor is particularly relevant to aging modern societies.
Essential tremor (ET) is a neurological disorder that affects nearly 0.9% of the world's population. High-frequency Deep Brain Stimulation (DBS) of the ventral-intermediate nuclei of the thalamus (VIM) has been proven as an effective second-line treatment for severe forms of ET. The arrival on the market of the PERCEPT™ (new stimulator/recorder, Medtronic, Minneapolis, USA) now allows, in addition to the stimulation delivery, the recording of intracerebral activity at a distance from surgery, in a non-invasive way and in ecological condition at home. Investigators aim at recording the variations of thalamic Local Field Potentials (LFP) oscillations, in ecological condition, during rest and movement, with and without deep brain stimulation, once a week, between M3 and M6 post surgery.
The deep brain stimulation is surgical technique used for the Parkinson's disease, essential tremor, dystonia, epilepsy, and psychiatric diseases. A pulse generator or battery (implanted pulse generator, IPG) is a need for replacement every few years. In general, electric cautery(BOVIE), which is commonly used in surgery, cannot be used when the deep brain stimulation machine is inserted, so conventional tools such as scissors and knives are used for replacement surgery. However, in the process, damage to the machine may be inflicted by knives, scissors, etc., and in the worst case, the machine may be unusable, resulting in financial and human consumption. Plasma Blade is currently used for tissue incision and coagulation in Korea, and is the only insurance-recognized tool in Korea for the replacement surgery of a cardiovascular implantable electronic device (CIED). The deep brain stimulation machine has a structure very similar to that of the heart electronics. In addition, the plasma blade was used to replace the deep brain stimulation machine overseas.The safety is reported in the surgery, so the plasma blade deep brain stimulation machine has been replaced in Korea. The investigators would like to check the safety and effectiveness for use in surgery.
The purpose of this Phase I open label study is to evaluate longer term tolerability and potential effectiveness of transcranial ultrasound in people with tremor as a results of Parkinson's Disease or Essential Tremor.
The primary purpose of this study is to evaluate the long-term safety and tolerability of SAGE-324 in participants with essential tremor (ET).
Essential tremor is a chronic and progressive neurological disease characterized by upper limb tremor. This is one of the most frequent movement disorders. Most of the time the disease worsens over the time, affecting patients' work abilities and in the most severe cases activities of daily living such as eating or dressing. For the most disabled patients, Deep brain stimulation (DBS) of the thalamic ventral intermediate median nucleus (Vim), a procedure consisting in an electrode implantation in a structure of the brain involved in tremor genesis, is the gold standard treatment. While this therapy is most of the time highly effective in alleviating the tremor, some subjects may exhibit gait impairment or upper limb coordination troubles years after the surgery, which are thought to be due to the involuntary stimulation of efferent cerebellar fiber tract. Unfortunately, this DBS induced side effect cannot be systematically avoided and may limit the possibilities of settings adaptation required to control the tremor. Surprisingly, while it could be a valuable therapeutic option for these patients suffering from DBS induced balance troubles, little is known about the effect of varying the rate of stimulation on the gait disorders associated with essential tremor and Vim DBS. The aim of or study is consequently to assess the effect of different frequency of stimulation on tremor, gait and balance disorders as well as on eye movements in patients uni or bilaterally stimulated in the Vim for a severe and medically intractable essential tremor. Patients followed at the National Hospital for Neurology and Neurosurgery (University College London Hospital) will be included. To better characterize the different symptoms, the investigators will use ataxia and tremor rating scale together with 3D gait motion analysis, oculography and computerized spiral test analysis. Our findings might lead to a better understanding of Vim-DBS associated gait disorders in essential tremor.
This research involves retrospective and prospective studies for clinical validation of a DystoniaNet deep learning platform for the diagnosis of isolated dystonia.
Individuals experiencing tremors face difficulty performing activities of daily living caused by involuntary oscillation of the muscles in the hands and arms. Current solutions to help suppress tremors include medication, surgery, assistive devices and lifestyle change. However, each of these has a drawback of its own including cost and unwanted side effects. Aside from the solutions listed, it has been shown that functional electrical stimulation(FES) is a possible solution to help suppress tremor. Additionally, FES can be combined with different technologies including accelerometers, gyroscopes and motion capture to develop a closed loop system for tremor suppression. However, this has drawbacks including signal interference and the need for multiple sensor to fully classify the tremor. Ultrasound imaging solves some of these issues because it can provide a direct visualization of hand muscles that contribute to tremor. This study will focus on detecting characterizing and differentiating tremors from voluntary hand motion using ultrasound imaging. The results obtained from this study will help design FES-based tremor-suppression techniques in the future. This study will target both subjects with different tremor disorders and able bodied subjects.
This Pilot Phase 2A study will investigate the safety, tolerability, and pharmacokinetics (PK) of ES-481 in adult patients with essential tremor.
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