Active clinical trials for "Glycogen Storage Disease Type II"

The purpose of the study is to determine if respiratory muscle strength training will be beneficial for inspiratory and expiratory muscle strength in adults and children with Pompe disease.

Study 701-901, a multicenter, multinational, longitudinal, non-interventional observational study in subjects, at least 18 years old, diagnosed with late-onset Pompe disease prospectively collects data to understand clinical progression in terms of respiratory function, symptomology, genotype, biochemistry, endurance and selected subject-reported measures for 24 weeks followed by a 240 week additional observation period for up to 100 subjects.

The purpose of the study is to evaluate changes in key clinical outcome measures (eg, motor, respiratory, fatigue) in adult subjects with late-onset Pompe disease (LOPD) subjects receiving standard-of-care enzyme replacement therapy (ERT). Additionally, information gained may be used in the design and conduct of future studies in LOPD subjects.

Study 701-201 is a study in patients with late-onset Pompe disease (LOPD). The study will test respiratory muscle strength initially and again after 24 weeks in subjects treated or not treated with BMN 701 .

This project is a randomized controlled trial to use a mobile health journal, called Zamplo (formerly known as MyHealthJournal or ZoeInsights), to record patient reported outcomes (PROM) in patients with metabolic disorders. The objective of the study is to assess the feasibility, acceptability and potential effectiveness of the Zamplo. The primary hypothesis is as follows: The Zamplo platform will significantly increase patient activation at 6 months post-baseline, defined as an individual's knowledge, skill, and confidence for managing their health and health care. The primary outcome is as follows: Patient activation following the use of Zamplo will serve as the primary outcome of interest and will be measured by the Patient Activation Measure (PAM) 13. The PAM 13 shows the degree of the patient's ability to manage their health with confidence by providing a total patient activation score. Brief Background: This project is a randomized controlled trial to use a mobile health journal, called Zamplo, to record patient reported outcomes (PROM) in patients with metabolic disorders. Zamplo is a software as a service (SaaS) digital platform on both iOS and Android platforms that allows real-time entry of patient symptoms and response to medications. It provides the patients with an interface to see their progress, store questions that they will ask at the next clinic visit, record their health data and use their data to engage in their health outcomes. MAGIC Clinic Ltd., which is the largest clinic in Alberta that manages metabolic disorders such as Fabry disease, Pompe disease, and Gaucher disease, will provide access to Zamplo to patients free-of-charge to evaluate its utility in managing the symptoms of their disease. Brief Study Design: The study is a two-armed randomized controlled design with 1:1 allocation to treatment (Zamplo app group) or control (usual care) arms, with assessments at four time points: baseline, 1 month, 3 months (primary outcome), 6 months and 12 months follow-up post-baseline. This is an open-label trial. The investigators intend to recruit 150 participants in this study, with 75 of them being controls. Inclusion Criteria: Adult patients with a diagnosis of metabolic disease Access to a smartphone with data connection Willingness to devote 10-15 mins of time in a day to log medications and notes Able to speak and write English sufficiently to complete questionnaires. Exclusion Criteria: Insufficient cognitive function to participate in the study The use of any electronic application requires some competency with the software on a cellphone, downloading the application and entering the data. Some patients who are elderly may not be familiar with this technology and would be excluded.

Development of a new MS-based biomarker for the early and sensitive diagnosis of Glycogen Storage Diseases from plasma. Testing for clinical robustness, specificity and long-term stability of the biomarker.

The primary aim is to characterize the prevalence, severity and quality of musculoskeletal nociceptive pain in adult patients with neuromuscular disorders (NMD). The secondary objectives are to evaluate whether severity and distribution of muscle pain is associated with muscle function, and to assess whether muscle pain is associated with alterations of muscle elasticity and muscle stiffness. Results of patients with neuromuscular disorders will be compared to age- and gender-matched healthy volunteers. Approx. 70 patients with neuromuscular disorders and 20 healthy volunteers will be enrolled, including patients with the following neuromuscular disorders: histologically confirmed inclusion body myositis (IBM), genetically confirmed late-onset Pompe disease (LOPD), genetically confirmed spinal muscular atrophy type 3 (SMA3), genetically confirmed facio-scapulo-humeral muscle dystrophy (FSHD), genetically confirmed myotonic dystrophy type 1 or type 2 (DM1, DM2). The duration of patient recruitment will be around 12 months.

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

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.

Pompe disease (also known as glycogen storage disease type II, "GSD-II") is caused by a deficiency of a critical enzyme in the body called acid alpha-glucosidase (GAA). Normally, GAA is used by the body's cells to break down glycogen (a stored form of sugar) within specialized structures called lysosomes. In patients with Pompe disease, an excessive amount of glycogen accumulates and is stored in various tissues, especially heart and skeletal muscle, which prevents their normal function. This study is being conducted to collect prospective, observational data on patients with late-onset Pompe disease. Approximately 60 subjects with late-onset Pompe disease will be enrolled.