View clinical trials related to Myasthenic Syndromes, Congenital.
Filter by:The purpose of this study is to assess the safety and tolerability of ARGX-119 in adult participants with DOK7- Congenital Myasthenic Syndromes. The study will also assess how ARGX-119 is processed by the body (pharmacokinetics), how the immune system reacts to it (immunogenicity), and how it may improve the way patients feel and function. After the screening period, eligible participants will be randomized in a 4:1 ratio to receive intravenous infusions of ARGX-119 or placebo during the treatment period. Participants will then enter the follow-up period. The full duration of the study is approximately 11 months.
Participants will attend up to 3 study visits to collect clinical assessments. The assessments will evaluate participants' symptoms and quality of life to understand disease activity in patients with DOK7-CMS better and may inform future study design.
Newborn screening (NBS) is a global initiative of systematic testing at birth to identify babies with pre-defined severe but treatable conditions. With a simple blood test, rare genetic conditions can be easily detected, and the early start of transformative treatment will help avoid severe disabilities and increase the quality of life. Baby Detect Project is an innovative NBS program using a panel of target sequencing that aims to identify 126 treatable severe early onset genetic diseases at birth caused by 361 genes. The list of diseases has been established in close collaboration with the Paediatricians of the University Hospital in Liege. The investigators use dedicated dried blood spots collected between the first day and 28 days of life of babies, after a consent sign by parents.
A few recent observational studies show that despite the lack of clear recommendations, many individuals with myasthenia participate in exercise. However, no link has been found between exercise and the severity of myasthenia symptoms, measured by the Muscle Myasthenia Score or the Myasthenia Gravis Composite Score. This suggests that there are other factors that may limit or prevent some individuals from being active, or factors which may facilitate participation in exercise. Studies in other diseases have shown that there are internal (beliefs, motivation, etc.) and external (cost, accessibility, etc.) factors unrelated to the disease which may play a role in exercise participation. The aim of this study is to identify factors that facilitate or limit exercise in individuals with autoimmune myasthenia gravis, congenital myasthenia syndrome and Lambert-Eaton syndrome.
Congenital myasthenia is a potentially lethal disorder, which, even with careful management, significantly impedes participation in normal daily functions. Currently approved therapies have had little impact on promoting a normal quality of life activity in these patients. The goal is to systematically examine the effect of 3,4-DAP on the natural course of this disease and to gain additional experience in titrating 3,4-DAP with other available therapies to maximize clinical function and development in this patient population. The specific aim of this study is to evaluate the use of 3,4 Diaminopyridine (DAP) on selected patients proven by genetic or serum antibody testing to have Congenital Myasthenic Syndrome (CMS), prescribe 3,4 DAP, and then clinically evaluate the response.
This randomized, double-blind, controlled, outpatient two-period, two-treatment crossover study is designed to evaluate the efficacy and safety of amifampridine phosphate in patients (ages 2 and above) diagnosed with certain genetic subtypes of CMS and demonstrated open label (amifampridine phosphate) or history of sustained amifampridine benefit from treatment.
Primary: The primary objective of this study under the original protocol was to provide neuromuscular specialists and neurologists access to amifampridine phosphate therapy for their patients with LEMS, CMS or downbeat nystagmus until the product became commercially available. Secondary: The secondary objective of this study under the original protocol was to provide additional long-term safety data on amifampridine phosphate in patients. Primary The primary objective of this study after its fifth amendment was to provide access to amifampridine phosphate therapy to pediatric patients with LEMS, and pediatric and adult patients with CMS until the product became commercially available for these indications or development of the product for the indication was terminated. Secondary: The secondary objective of this study after its fifth amendment was to assess the long-term safety of amifampridine phosphate in pediatric patients with LEMS, and pediatric and adult patients with CMS.
Lambert-Eaton Myasthenic Syndrome (LEMS) is a rare autoimmune disorder which affects the nerve-muscle junction. The major symptoms of LEMS are progressive muscle weakness. Many patients experience other symptoms like dry mouth or impotence. Congenital Myasthenia (CM) is an inherited disorder with similar affects and symptoms. 3,4-Diaminopyridine (DAP) is an experimental drug that has improved strength in some subjects with (LEMS). There are no other accepted treatments for LEMS and DAP has relatively few side effects.
This protocol has provided 3,4 diaminopyridine (DAP) under a treatment-use IND to patients with congenital myasthenic syndrome (CMS). It is currently closed to enrollment.
This is a retrospective study that follows the clinical evolution, the pregnancy and the post-partum perioad of female patients with Congenital Myasthenic Syndrome.