Effect of Modulating the nNOS System on Cardiac, Muscular and Cognitive Function in Becker Muscular...
Becker Muscular DystrophyThis study is done to evaluate whether treatment with the drug sildenafil (Revatio®) can improve muscular, cardiac, cerebrovascular or cognitive function in patients with Beckers muscular dystrophy when compared to placebo (inactive medication). The study is based on the recent findings of an improved cardiac function in a mouse model of muscular dystrophy (Adamo et al 2010) and the previous findings of changed cognitive function in people with Becker dystrophy. In muscular dystrophy, the cellular protein, dystrophin is affected. During normal conditions, the enzyme neuronal nitric oxide synthase (nNOS), which produce nitric oxide (NO), is attached to dystrophin. NO is important in normal vascular function in each of muscle, heart and brain by stimulating production of cyclic GMP. However, in muscular dystrophy with dystrophin deficiency, nNOS do not have the normal cellular anchor, resulting in decreased NO levels and subsequent reduced cyclic GMP production. Sildenafil inhibits degradation of cGMP thus prolonging and increasing a cGMP response. Such effects are the basis for use of sildenafil in pulmonary hypertension and erectile dysfunction. Current hypothesis: Sildenafil restores the cyclic GMP function affected in muscular dystrophy wit nNOS deficiency resulting in improved muscle, cardiac, cerebrovascular and cognitive function.
To Compare the Pharmacokinetics Profiles of ISO 20, IBU 200 and IBU Plus ISO Combinations 200 +...
Duchenne Muscular Dystrophy (DMD)This study will evaluate the pharmacokinetics plasma profile of 3 treatments: ISO 20, IBU 200 and IBU and ISO combinations (200 +20) given in single dose. This study is being conducted to support the submission for new indication in treatment of the combinations of Isosorbide Dinitrate and Ibuprofen as a treatment for Duchenne muscular dystrophy.
A Clinical Study to Assess Two Doses of GSK2402968 in Subjects With Duchenne Muscular Dystrophy...
Muscular DystrophiesThe purpose of this study is to determine if GSK2402968 is effective in the treatment of ambulant boys with Duchenne muscular dystrophy resulting from a mutation thought to be corrected by exon 51 skipping. Two doses of GSK2402968 and placebo will be used in this study.
Phase II Doubleblind Exploratory Study of GSK2402968 in Ambulant Subjects With Duchenne Muscular...
Muscular DystrophiesThe purpose of this study is to determine whether GSK2402968 given as a continuous dose and as an intermittent dose is effective and safe in the treatment of Duchenne muscular dystrophy.
Sunphenon Epigallocatechin-Gallate (EGCg) in Duchenne Muscular Dystrophy
Duchenne Muscular DystrophyThe aim of this multicentre, prospective, double blind, placebo controlled, randomized pilot study is to investigate safety and tolerance of Epigallocatechin-Gallate (EGCG, the major polyphenol in green tea) in patients with muscular dystrophy of the Duchenne type. In a second step the investigators want to investigate the effect of EGCG on the course of the Duchenne condition.
Effect of Oral Glutamine on Muscle Mass and Function in Duchenne Muscular Dystrophy
Muscular DystrophyDuchenneThe purpose of this study is to determine whether long-term oral glutamine supplementation is effective in improving muscle mass and function in children with Duchenne muscular dystrophy (DMD).
Pentoxifylline in Duchenne Muscular Dystrophy
Muscular DystrophyDuchenneIn this study, the primary aim will be to estimate the magnitude and variability of strength change over time that may be expected for subjects on the study treatment. This estimate of effect will allow us to develop a rigorous statistical plan in the future randomized study. The specific estimation technique to be applied will use a linear random effects model to estimate average strength change during the 3-month lead-in period and then during the twelve-month treatment period, taking into account the quantitative muscle testing (QMT) measures for each subject. Accounting for the correlation between repeated measures from each subject by using a random effects model will yield an unbiased estimate of variability for the population average change in strength. We will use an analysis of pre- and post-treatment data to inform a best estimate of treatment effect. For example, the difference in QMT trends pre- and post-treatment would provide a straightforward measure of efficacy.
An Open-label Pilot Study of Coenzyme Q10 in Steroid-Treated Duchenne Muscular Dystrophy
Muscular DystrophyDuchenneThis study will help to determine the safety and efficacy of the nutritional supplement Coenzyme Q10 when added to steroids as a treatment for Duchenne muscular dystrophy (DMD). Boys with DMD who are enrolled in this study will should be on a stable dose of steroids for at least six months, and will remain on their usual dose throughout the study. They will complete two screening visits within a one-week period, and if enrolled will then have their strength tested monthly for three months before beginning therapy with Coenzyme Q10. Once Coenzyme Q10 therapy is started, participants will have their strength tested monthly for six months. Following the six month treatment period, participants will be given the option to remain on Coenzyme Q10 until the study is completed.
Weekly Steroids in Muscular Dystrophy
Limb-girdle Muscular DystrophyBecker Muscular DystrophyThe purpose of this study is to evaluate the safety and efficacy of oral weekly glucocorticoid steroids in patients with Becker Muscular Dystrophy (BMD), an inherited disorder in which patients experience weakness of the legs and pelvis, and Limb Girdle Muscular Dystrophy (LGMD), an inherited disorder in which patients experience progressive muscular weakness predominately in their hip and shoulders. The primary objective is safety which we the investigators will measure using laboratory testing and forced vital capacity (FVC), a breathing test that measures the strength of your lungs. The secondary objective is efficacy which will be measured by a change in MRI muscle mass, improved muscle performance, and quality of life. The investigators hypothesize that patients who receive oral weekly glucocorticoid steroids will have improviements in strength and quality of life compared to their baseline. Furthermore, the investigators anticipate that oral weekly glucocorticoid steroids will not have significant adverse impact on patients.
A 48-Week, Open Label, Study to Evaluate the Efficacy and Safety of AMONDYS 45, EXONDYS 51, VYONDYS...
Duchenne Muscular DystrophyThis is an 48-week open-label study to determine the efficacy and safety of AMONDYS 45, EXONDYS 51, VYONDYS 53 for the treatment of boys with duchenne muscular dystrophy who have a single exon duplication of either exon 45, 51 or 53, respectively. There will be weekly infusions and two muscle biopsies at baseline and at month 12.