View clinical trials related to Ataxia.
Filter by:Cerebellar ataxias are a group of rare neurological disorders that are clinically and genetically heterogeneous, with several hundred genes and diseases known to date. Over the last decade, their diagnosis has been revolutionised by the development of high-throughput sequencing technologies such as exome/genome sequencing (ES/GS), making it possible to obtain a molecular diagnosis in a growing number of patients. However, almost 40% of patients remain without a molecular diagnosis, raising questions about the limitations of sequencing technologies based on a technique known as short-read. One limitation of short-read is its poor ability to detect repeated motif expansions, a frequent mechanism in neurology and associated with more than thirty neurogenetic diseases. Although tools for analysing ES/GS data have gradually been developed in response to this problem, their effectiveness and reliability remain moderate. To date, the gold standard for detecting these expansions remains targeted approaches such as PCR and Southern blot, which are long, tedious and costly processes that require an independent search for each expansion, forcing clinicians to select expansions and limiting diagnostic yield. In addition, there are diseases associated with expansions so rare that no French laboratory offers a diagnostic test. The recent development of long fragment genome sequencing (long-read - lrGS) could provide a solution to all these problems. These technologies are based on a sequencing process during which DNA is preserved in the form of large molecules of several tens of thousands of bases. Regions of the genome containing expansions can therefore be studied directly in their entirety, avoiding the difficulties of reconstruction from small fragments, which is the case in short-read sequencing. In addition, lrGS can characterize the size of repeated motifs and thus detect any causal expansion in an individual in a single analysis. A number of recently published studies, particularly in neurology, have demonstrated the ability of lrGS to detect pathologies with known expansions (SCA36, C9ORF72), but also to discover new ones and thus explain the molecular basis of rare pathologies (SCA27b, NOTCH2NLC). Although these sequencing technologies have been around for a number of years, access is still restricted to research work and is limited by their higher cost. Their value as a second-line diagnostic tool has yet to be demonstrated. The investigators propose to evaluate the feasibility and diagnostic yield of Oxford Nanopore lrGS in duo or trio (patients + 1 or 2 first-degree relatives) in patients with cerebellar ataxia without molecular diagnosis after short-read GS. This will be the first study to transfer this lrGS technique to the second line, in real-life conditions, for the causal genetic diagnosis of cerebellar ataxia.
The purpose of this study is to determine the effects of high intensity stepping training on gait outcome measures in patients with cerebellar ataxia, to identify the correlations between gait outcome measures and measures of ataxia and balance in individuals with cerebellar ataxia and to determine differences in response to high intensity stepping training based off of diagnosis.
Ataxia refers to a group of neurological disorders characterized by impaired coordination and balance due to dysfunction in the cerebellum or its connections. Traditional therapeutic approaches for ataxia have shown limited efficacy, prompting researchers to explore alternative interventions. Non-invasive brain stimulation (NIBS) techniques, such as transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS), transcranial alternating current stimulation (tACS), and intermittent theta burst stimulation (iTBS), have emerged as potential therapeutic options. The aim of this study is to investigate the combined effect of tACS-iTBS on balance functions in ataxia disorders.
The purpose of the clinical trial is to study the therapeutic efficacy and safety of Stemchymal® infusions for polyglutamine spinocerebellar ataxia treatment by a randomized, double-blind, placebo-controlled study design. Eligible subjects will receive Stemchymal® through intravenous infusion.
Study design: Single arm open-label clinical trial in ataxia-telangiectasia to test the effects of nicotinamide riboside on ataxia scales, immune function, and neurofilament light chain. Study population: 6-10 patients with Ataxia-Telangiectasia. Dose: Nicotinamide riboside 25 mg/kg/day in 3 equal divided doses. Primary endpoint: Scales for assessment and rating of ataxia (SARA), and International Cooperative Ataxia Rating Scale (ICARS). Improvement of at least ½ standard deviation in key clinical scales which includes either; a) significant improvement in total combined scores from the SARA and ICARS scales, and /or b) significant improvements any aspects of the SARA and ICARS scales individually, especially pertaining to; Postural and gait improvements, Improved syllable speed and articulation, Improved fine motor skills. Secondary endpoints: Serum analysis of neurofilament light chain (Nfl), Type 1 Interferon (INFs) epigenetic signature
Functional bowel diseases are defined as chronic disorders of the gastrointestinal tract characterized by abdominal pain, bloating, tension and/or defecation abnormalities. Functional bowel diseases are studied under five headings: functional constipation, functional diarrhea, functional abdominal bloating / tightness and unclassifiable functional bowel disorders. Functional constipation is divided into three categories as normal transition-time constipation, slow transition-time constipation and defecation disorders. Defecation disorders occur due to improper use of pelvic floor muscles and anorectal muscles or anatomical abnormalities and account for 1/3 of all constipation. Defecation disorders characterized by excessive straining, incomplete defecation sensation, difficult and painful defecation are defined as narrowing of the fecal exit path due to involuntary pelvic floor contractions or posterior compartment pelvic organ prolapse. Non-pharmacological treatment in the treatment of functional constipation is considered as the first-line treatment and includes information about the nutrition, fiber-liquid consumption, physical activity and toilet training of patients. Biofeedback therapy is often recommended in patients with defecation disorders in the literature, and there are studies showing that it is superior to laxative use and placebo applications in the studies conducted. However, the fact that it is difficult and costly to achieve Biofeedback treatment, the method used allows movement at a certain angle and does not include the stretching method seems to be a disadvantage. Postisometric Relaxation technique is used in cases of pain, muscle spasm and movement limitations. People with defecation disorders experience spasms, pain and movement limitations in the pelvic floor muscles. For this reason, the investigators think that the Postisometric Relaxation technique may be effective in patients with defecation disorders, and it will also provide advantages due to the fact that the method is easily accessible, does not require extra materials and devices, and has a stretching effect. The aim of this study is to investigate the effect of Postisometric Relaxation technique on constipation severity, quality of life, anal pain, muscle function and sexual function in patients with defecation disorder.
The goal of this project is to evaluate how aerobic training impacts eyeblink conditioning as a proxy for cerebellar dependent motor learning. The newly developed smartphone application, iBlink, will be used to test participants at home in an effort to improve recruitment and increase the sample size of the study. The investigators hypothesize that aerobic training, but not balance training, will improve eyeblink conditioning in participants with spinocerebellar ataxias. The current study focuses on Aim 3 of this project.
1. evaluate psychiatric disorders among patients with anorectal dyssynergia 2. evaluate the effect of delayed diagnosis of anorectal dyssynergia on the quality of the life
Cerebellar ataxia is a pathology linked to the lesion of the cerebellum or the afferent and/or efferent cerebellar pathways. The aetiology can be an acquired cerebral lesion, following a chemical poisoning or a genetic degenerative lesion (for example : Friedreich's ataxia, spinocerebellar ataxias, etc.). As reported by the latest estimate available, genetic degenerative cerebellar ataxias affect approximately 6,000 patients in France (Orpha.net). Symptoms suffered by ataxic patients are : problems and gait disorders along with difficulties in coordination resulting in ataxia, uncoordinated movements. These symptoms cause a decrease in the quality of life on patients with spinocerebellar ataxia. The symptoms improvement linked to the cerebellar syndrome is based on rehabilitation that can be supplemented by use of technical aids. Current scientific knowledge confirms that intensive rehabilitation by physiotherapy and occupational therapy in patients with degenerative ataxias improves cerebellar symptoms. Nevertheless, the choice rehabilitation technique stay at the appreciation of the therapist. From the observation, the investigators have designed an intensive multidisciplinary rehabilitation program, called PAMPERO, with partner patients member of two genetic degenerative ataxia patient organisations. This 5-weeks program has been used in clinic during 3 years on 28 patients. It appears to be the only one in France. The preliminary results show a positive effect on ataxia symptom. Nevertheless, the duration of the benefice over time and the effect on the quality of life stay unknown. However, the quality of life is mainly affected by the participation restriction due to the risk of falling. The most frequent complaint from partner patient is the diminution of the social interaction resulting of the incapacity to move without risk. The present protocol aimed at evaluating the Rehabilitation Program in collaboration with partner patient on the symptom intensity, activity and quality of life on genetic and degenerative ataxia. This PAMPERO program's effect will be assessed by comparing the difference of Intensity of symptom measured by to Scale for the Assessment and Rating of Ataxia (SARA) at inclusion and 3 months after the end of rehabilitation.
This is an open-label study evaluating the safety, tolerability, and PK following single-dose administration of omaveloxolone in pediatric patients with FA. The study will consist of 3 parts (Parts A, B, and C) based on age.