Active clinical trials for "Glycogen Storage Disease Type II"

Pompe disease (also known as glycogen storage disease Type 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. The objective of this protocol is to provide enzyme replacement therapy with alglucosidase alfa on an expanded access basis, to severely affected patients with late-onset Pompe disease for whom there is no alternative treatment and who do not meet the clinical characteristics described in the inclusion criteria for participation in other Genzyme Corporation-sponsored studies currently enrolling patients with late-onset Pompe disease.

The purpose of this study is to obtain information pertaining to the occurrence of antibodies to investigational SPK-3006 capsid and GAA, GAA activity and GAA antigen levels in the usual care setting of Late-Onset Pompe Disease (LOPD) participants on an enzyme replacement regimen. Additionally, a careful evaluation of laboratory and functional testing in patients with LOPD may provide information to better understand the disease features and better drive the design of a future interventional investigational gene therapy trial. An understanding of the underlying status of liver and muscle health in individuals with LOPD may also inform best surveillance during the conduct of gene therapy trials.

The goals of this study are to determine safety and efficacy with regard to motor function of oral clenbuterol in combination with ERT in subjects with LOPD

This is a 24-month, observational study of up to 1000 participants with Limb Girdle Muscular Dystrophy (LGMD), Myotonic Dystrophy Type 2 (DM2), and late onset Pompe disease (LOPD).

The research protocol will be submitted for approval to the institutional review board of Columbia University Medical Center. An attempt will be made to recruit at least 6 juvenile patients between the ages of 8 and 17, preferably who are still ambulatory. Subjects meeting all eligibility criteria will undergo a full history and physical examination, including details of age of onset of symptoms, distribution and severity of muscle weakness, muscle function, pulmonary function, and nutritional status. Subjects will undergo an electrocardiogram (ECG), spirometry, muscule strength evaluation, exercise capacity, functional muscle tests, laboratory tests, and muscle biopsy. Quality of life will be assessed via SF 36 questionnaire. Functional ability and level of handicap will be assessed by Rotterdam handicap scale. Written informed consent will be obtained from all subjects. All patients, who will have received enzyme replacement therapy (ERT) for at least 2 years, will be evaluated prior to institution of high protein nutrition and exercise therapy plus nocturnal enteral feeding (HPET + NEF)(baseline), then again at 3 months, 6 months and 12 months into treatment. The following parameters will be evaluated- Skeletal Muscle Function Biochemical parameters from collected blood sample Muscle Biopsy will be obtained at baseline and at 12 months. Biopsy specimens, obtained from thigh muscle at baseline and a repeat biopsy of the corresponding area of the other leg at 12 months, will be analyzed as follows:. Histology and electron microscopy Autophagic and lysosomal function evaluation Body composition Body mass index (BMI), body composition, lean body mass, and fat mass will be measured at each visit by bioelectric impedance analysis using BI-101Q RJL Systems, software 3.1b

This study is being done to test the effects of respiratory muscle training (RMT) in patients with late-onset Pompe Disease (LOPD) who have weakness of their breathing muscles. The results of this study will help design future research studies about RMT in LOPD. The goals of this study are to decide if sham-RMT is a useful control condition for RMT and to choose the best ways to measure the health benefits of RMT in LOPD.

Pompe's disease, also known as glycogen storage disease type II, is a genetic disorder due to deficiency of acid glucosidase (GAA), which results in lysosomal glycogen storage in various tissues. Very low levels of GAA usually present in infancy, lead to a progressive cardiac and skeletal muscle disorder and death before age 1 year. Most infants develop massive hypertrophic cardiomyopathy which progresses to dilated cardiomyopathy and cardiorespiratory arrest. 3D echocardiography can be a simple, non-invasive method of following cardiac disease progression in infantile Pompe's disease.

Patients with infantile onset Pompe disease will be trained with continuous positive airway pressure to see if hypernasality can be improved.

The purpose of this study is to test the feasibility of a newborn screen assay for Pompe disease

The purpose of this study is to assess anti-recombinant human acid α-glucosidase (anti-rhGAA) antibody titers after treatment with immune modulation therapy in patients of Pompe disease.