Becker Muscular Dystrophy
Conditions
Brief summary
This is a multi-center natural history study that will be conducted at participating centers in the Cooperative International Neuromuscular Research Group (CINRG). Following a baseline evaluation, participants will have three follow-up visits over a three-year period. The investigators will characterize the Becker muscular dystrophy phenotype, and correlate specific abnormal dystrophin proteins with the range of clinical outcomes.
Detailed description
We will utilize the Cooperative International Neuromuscular Research group (CINRG) network to collect cohorts of Becker muscular dystrophy (BMD) patients with in-frame deletions in the dystrophin gene. We will collect clinical data across multiple body systems and correlate these findings to the high-resolution deletion break-point mapping performed from the tissue samples. We will investigate the observed variability to deepen our understanding of molecular mechanisms relevant to the optimization of exon skipping therapeutic approaches.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* Male * Age 4 or older * Diagnosis of BMD with an in-frame deletion in the dystrophin gene, where the boundaries of the mutations are confirmed.
Exclusion criteria
• Investigator assessment of inability to comply with protocol
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Strength and function | Annual | — |
| Quality of life | Annual | These questionnaires include: * Pediatric Quality of Life Inventory (PedsQL) * Pediatrics and Adult Neuromuscular module Quality of Life (NeuroQOL) |
| Medical history assessment - ambulation status, medication history, hospitalizations, surgeries, nutrition, fractures, and cardiac tests | Annual | — |
Countries
Canada, Italy, United Kingdom, United States