Clinical Research Directory

A Trial to Learn More About an Experimental Gene Therapy Called Bidridistrogene Xeboparvovec (SRP-9003) as a Possible Treatment for Limb Girdle Muscular Dystrophy 2E/R4

This is a multicenter, global study of the effects of a single systemic dose of SRP-9003 on beta-sarcoglycan (β-SG) gene expression in participants with limb-girdle muscular dystrophy, type 2E/R4 (LGMD2E/R4). This study will consist of both ambulatory participants (Cohort 1) and non-ambulatory participants (Cohort 2).

A Study of the Natural History of Participants With LGMD2E/R4, LGMD2D/R3, LGMD2C/R5, and LGMD2A/R1 ≥ 4 Years of Age, Who Are Managed in Routine Clinical Practice

This study will follow participants who are screened and confirmed with a genetic diagnosis of Limb-girdle muscular dystrophy type 2E (LGMD2E/R4), Limb-girdle muscular dystrophy type 2D (LGMD2D/R3), Limb-girdle muscular dystrophy type 2C (LGMD2C/R5), or Limb-girdle muscular dystrophy type 2A (LGMD2A/R1). These enrolled participants will be followed to evaluate mobility and pulmonary function for up to 5 years after enrollment for participants with LGMD2C/R5, LGMD2D/R3, and LGMD2E/R4 with a North Star Assessment for Dysferlinopathy (NSAD) ≥ 25 at Baseline, up to 3 years for participants with LGMD2C/R5, LGMD2D/R3, and LGMD2E/R4 with a NSAD \< 25 at Baseline, and up to 3 years for participants with LGMD2A/R1. Additional participant data will be collected from the time the individual began experiencing LGMD symptoms to the present.

The Role of Muscle Ultrasound in Assessment of Sample of Patients With Limb-girdle Muscular Dystrophy

1. to detect the characteristic patterns of muscle involvement in suspected cases of LGMD using muscle ultrasound 2. to use the muscle ultrasound findings clinically categorized the different types of LGMD 3. to correlate the muscle ultrasound findings with the findings of the other assissed scales

Molecular Analysis of Patients With Neuromuscular Disease

The purpose of this study is to identify new genes responsible for neuromuscular disorders and study muscle tissue of patient with known neuromuscular disease, as well as their family members. We are interested in recruiting many types of neuromuscular disease including; Duchenne muscular dystrophy (DMD), Becker muscular dystrophy (BMD), and limb-girdle muscle dystrophy (LGMD). There are still many patients diagnosed with muscular dystrophy with no causative gene implicated in their disease. Using molecular genetics to unravel basis of these neuromuscular disorders will lead to more accurate diagnosis/prognosis of these disorders which will lead to potential therapies.