View clinical trials related to Glycogen Storage Disease Type II.
Filter by:The purpose of this study is to determine eligibility for the future clinical trial of gene therapy in adults with late-onset Pompe disease. This screening protocol will enroll up to 20 adults patients (>=18 yo) with late-onset Pompe disease. Study assessments include review of medical history, vital signs, physical examination, muscle function testing, lung function testing, blood and urine collection, serum pregnancy test and ECG. The study results will be collected to perform descriptive statistical analysis and used to determine eligibility for the proposed clinical trial of gene therapy in the future.
This study is being done to test the effects of Lingual Muscle Therapy (LMT) in patients with Late-Onset Pompe Disease (LOPD) who have tongue weakness. The results of this study will help design future research studies about LMT in LOPD.
Introduction: Enzyme replacement therapy (ERT) with Myozyme improved the prospect of Pompe disease patients. Our aim was to evaluate ERT acute effect on exercise capacity in pediatric Pompe patients. Methods: Pompe patients (10-19 years) were evaluated before and two days after ERT using cardiopulmonary exercise testing (CPET), six minutes walking test (6MWT) and motor function test (GMFM-88).
This study aims to analyze serum and plasma samples from patients with late onset Pompe disease treated and not treated with enzyme replacement therapy (ERT) to identify microRNA that could be specific of the disease. The investigators will correlate the concentration of these microRNA with several muscle function tests and quantitative muscle MRI to know whether they are good biomarkers of progression.
Primary Objective: To evaluate the safety profile of avalglucosidase alfa in participants with infantile-onset Pompe disease previously treated with alglucosidase alfa. Secondary Objective: To characterize the pharmacokinetic profile of avalglucosidase alfa and to evaluate the preliminary efficacy of avalglucosidase alfa in comparison to alglucosidase alfa.
The primary purpose of this study is to: - Document the developmental outcomes of individuals with Pompe disease treated with long-term enzyme-replacement therapy (ERT) through school-age (ages 6-18) using measures of cognitive functioning, academic skills, and speech and language abilities. - Investigate possible cognitive processing speed weaknesses using BrainBaseline neurocognitive assessment software. - Investigate the relationship between behavior and other developmental factors including speech and language ability and cognitive ability. - Explore if the use of selected iPad applications may help strengthen cognitive processing speed in children with Pompe disease
Given the 100 fold increase of the incidence of Pompe's disease in Western French Guiana, the objective of the present study is to implement systematic screening in newborns in French Guiana in order to start treatment before the muscular and cardiac symptoms appear.
Given the high incidence of Pompe's Disease in French Guiana (100 times higher than in mainland France) the aim is to determine the prevalence of heterozygotes among women having just delivered in French Guiana who accepted that their newborn child enters the depipomp1 study. In these women the specific mutations p.Gly648Ser and p.Arg854X will be sought using PCR in order to calculate the prevalence of these mutations and estimate the risk factors associated with them in order to improve genetic counselling.
This Phase I/II open-label, randomized, dose-escalation study will assess the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary efficacy of VAL-1221 versus Myozyme®/Lumizyme® in participants with late-onset glycogen storage disease-II (GSD-II) (Pompe disease)
The incidence of type II glycogen-storage disease (Pompe disease) varies depending on ethnicity and geographic region. As of 2010, nine studies have been published documenting the incidence of Pompe disease. It is most common within the African American population, with an incidence of 1 in 14,000. In the U.S. more broadly speaking, the combined incidence of all three variants of the disease is 1 in 40,000. These estimates relied on the frequencies of three mutations in the gene acid alpha-glucosidase (GAA), leading to variants of the disease. Criteria for inclusion in the studies were often non-selective; in many cases, molecular genetic screening was done at birth. With such a high prevalence of Pompe disease reported, it is expected that large university medical centers specializing in neuromuscular diseases would see a higher incidence of Pompe disease among their patients. From a comparable Italian multicenter study, it appears that Pompe disease accounts for 3% of all patients presenting with proximal weakness with or without CK elevation. This study will measure the incidence of Pompe disease based on manifest laboratory abnormality, namely low GAA enzyme activity. Analysis of GAA enzyme activity will be determined through a blood sample of 4 mL. The study seeks to measure the epidemiology of Pompe disease by symptomatically screening all patients who present with symptoms of hitherto undiagnosed proximal weakness with or without elevation of the muscle enzyme, creatinine kinase (CK), or elevation of CK alone, at thirteen academic tertiary neuromuscular practices throughout the United States and Canada. Total recruitment is expected to be ~1,500 participants. It is anticipated that the number of incident Pompe cases in this cohort would be between 3-5%, i.e. 45-75 newly diagnosed cases of Pompe disease.