View clinical trials related to Dystonic Disorders.
Filter by:This study will compare Xeomin®, a botulinum toxin medication, in shorter treatment intervals (Short Flex dosing) to the standard interval dosing (Long Flex dosing) to determine if the response to treatment is comparable in both how it works and any side effects. Xeomin® is approved by the United States Food and Drug Administration (FDA) for the treatment of cervical dystonia (CD). The use of Xeomin® is investigational in regards to shorter treatment intervals. An investigational use is one that is not approved by the FDA.
The investigators hypothesize that transcranial direct current stimulation over the motor cortex will reduce muscle overflow and improve hand function in children with primary or secondary dystonia.
This is a research study using transcranial magnetic stimulation (TMS) to investigate interactions between the sensory system and the motor cortex in primary generalized dystonia (DYT1 dystonia) subjects who undergo deep brain stimulation (DBS) surgery. The sensory system is the body's sense organs - smell, sight, sound, etc. - and the motor cortex is the part of your brain where nerve impulses control voluntary muscle activity.
The purpose of this study is to evaluate if the antibiotic Ampicillin is safe and tolerated in patients that have generalized dystonia caused by the DYT-1 gene mutation, as compared to patients treated with a placebo. A placebo is a pill that looks and tastes the same as the real drug, but without the active ingredient. The second objective of this study is to determine if dystonia symptoms improve while on the study drug.
Dystonia is a disabling movement disorder characterized by repetitive patterned or sustained muscle contractions causing twisting or abnormal postures that may afflict 250,000 people in the U.S. While the pathophysiology of dystonia remains uncertain the treatment is rather rudimentary. A better understanding of neural mechanisms of dystonias is not only an invaluable prerequisite for developing better treatment options but also a step toward better understanding of the complex network of basal ganglia. In this study I will investigate if there is any difference between the dopamine receptors and dopamine in people with dystonia and healthy subjects.
Dystonia is a disorder characterized by excessive involuntary contraction of muscles with repetitive and patterned movements. The isolated dystonias are the most common type of dystonia and include Limb dystonias (like writer's cramp), Cervical dystonia (spasmodic torticollis), Laryngeal dystonias (like spasmodic dysphonia), and Craniofacial dystonias (like blepharospasm). The purpose of this study is to create resources to help learn more about the isolated dystonias, myoclonus dystonia, and dopa-responsive dystonia and to develop and validate various dystonia rating scales.
The purpose of the protocol is to determine typical patient response to Dysport in the treatment of adult cervical dystonia (CD).
This is a prospective, observational trial evaluating the "real world" use of Xeomin®(incobotulinumtoxinA). Physicians may enroll patients who are eligible to be treated with a botulinum toxin for cervical dystonia or blepharospasm based upon their clinical experience. The physician must have chosen to treat the patient with Xeomin® (incobotulinumtoxinA) prior to and independent of enrollment in this study. Physicians may choose to treat their subjects with up to 2 treatment cycles (approximately 6 months/subject) of Xeomin® (incobotulinumtoxinA) at a dose determined by the physician based upon his/her clinical experience with botulinum toxin. According and dependent on clinical practice, the investigators expect that subjects will be seen by the investigator for an average of 3 visits (two treatment cycles).
Purpose - Objective : Sensorimotor adaptation allows the modification of the motor command taking into account the errors detected during execution of prior movements. It involves a large cortico-subcortical network. Isolated lesions of this network do not systematically alter sensorimotor adaptation except for cerebellar lesions. The cerebellum is thus a key structure for sensorimotor adaptation. However, the link between cerebellar and the cortical plasticity underlying sensorimotor adaptation remain unknown. Alteration of sensorimotor adaptation is associated with dystonia but it is unclear whether it is a cause or consequence of dystonia. It has been hypothesized that the abnormal plasticity observed in dystonia could account for the associated alteration of sensorimotor adaptation. Classically, basal ganglia dysfunction is considered to be crucial for dystonia pathogenesis. However, recent studies suggest that the involvement of the cerebellum may also be important in this setting. In primary dystonia, imaging studies showed abnormal cerebellar activation during sensorimotor adaptation tasks and neurophysiological studies demonstrated a decrease of cerebellar output. The aim of this study is to investigate the role of the cerebellum in the cortical plasticity underlying sensorimotor adaptation both in healthy subjects (normal plasticity) and in dystonic patients (abnormal plasticity). - Methods: Paired associative stimulation PAS consists in repetitive pairing of a peripheral nerve and a cortical stimulation. This kind of stimulation has been designed to induce artificial plasticity that can be easily measured. This PAS induced sensorimotor plasticity is exacerbated and has lost its topographical specificity in dystonic patients.TMS using trains of TMS pulses (rTMS) can be applied on the cerebellum to modulate its output. We will test the effect of rTMS induced modulation (cTBS- inhibitory, iTBS-excitatory, sham) of the cerebellar output on PAS induced plasticity in patients with dystonia and healthy control. We will also assess the acute effect of the rTMS induced modulation of the cerebellar output on the dystonic symptoms and on the performance at a validated sensorimotor adaptation task. This will be done by double blind post-hoc scoring of the dystonia (BFM or TWSTRS) on standardized videorecording and measurement of the performance at the task after each rTMS session (cTBS, iTBS, sham). Finally, we will assess the variation of PAS effect on other parameters reflecting cortical excitability after each rTMS session (cTBS, iTBS, sham).
The purpose of this study is to evaluate how well a new drug called Dysport NG works and how safe it is, when it is used for the treatment of cervical dystonia. Dysport NG will be compared to an approved drug called Dysport.