Has an established clinical diagnosis of DMD based on documentation of clinical findings and prior confirmatory genetic testing using a clinical diagnostic genetic test.
DMD gene mutation in exons 18 and above, and a clinical picture consistent with typical DMD with the exception of a participant (Cohort 1b) with DMD gene mutation in exons 12-17.
Has a definitive diagnosis of DMD prior to screening based on documentation of clinical findings and prior confirmatory genetic testing using a clinical diagnostic genetic test
Active, Not Recruiting
Belgium, France, Germany, Italy, Spain, United Kingdom
Established clinical diagnosis of DMD and documented dystrophin gene mutation predictive of DMD phenotype confirmed by Sponsor genetic testing. In cases where a genotype may be predictive of residual dystrophin production and/or a clear clinical diagnosis of DMD cannot be made (e.g., due to age), evaluation of dystrophin levels in baseline muscle biopsies may be required to determine eligibility under this criterion.
Has a definitive diagnosis of DMD prior to Screening or as part of Screening based on genetic testing. Note that participants who rescreen do not have to repeat genetic testing for the diagnosis of DMD if one is already on file. Genetic reports must describe a frameshift deletion, frameshift duplication, premature stop ("nonsense"), canonical splice site mutation, or other pathogenic variant in the DMD gene fully contained between exons 18 to 58 (inclusive) that is expected to lead to absence of a functional dystrophin protein (mutations in exons 1-17 or 59-71 are therefore not permitted).
The purpose of this study is to provide a single clinical study with a uniform approach to monitoring long-term safety and efficacy in participants who received delandistrogene moxeparvovec in a previous clinical study. No study drug will be administered as part of this study.
Enrolling by Invitation
United States, Belgium, Germany, Hong Kong, Italy, Japan, Spain, Taiwan, United Kingdom
Has an established clinical diagnosis of DMD based on documentation of clinical findings and prior confirmatory genetic testing using a clinical diagnostic genetic test.
Has an established clinical diagnosis of DMD based on documentation of clinical findings and prior confirmatory genetic testing using a clinical diagnostic genetic test.
Has an established clinical diagnosis of DMD based on documentation of clinical findings and prior confirmatory genetic testing using a clinical diagnostic genetic test.
DMD gene mutation in exons 18 and above, and a clinical picture consistent with typical DMD with the exception of a participant (Cohort 1b) with DMD gene mutation in exons 12-17.
Has a definitive diagnosis of DMD prior to screening based on documentation of clinical findings and prior confirmatory genetic testing using a clinical diagnostic genetic test
Locations
Belgium, France, Germany, Italy, Spain, United Kingdom
Established clinical diagnosis of DMD and documented dystrophin gene mutation predictive of DMD phenotype confirmed by Sponsor genetic testing. In cases where a genotype may be predictive of residual dystrophin production and/or a clear clinical diagnosis of DMD cannot be made (e.g., due to age), evaluation of dystrophin levels in baseline muscle biopsies may be required to determine eligibility under this criterion.
Has a definitive diagnosis of DMD prior to Screening or as part of Screening based on genetic testing. Note that participants who rescreen do not have to repeat genetic testing for the diagnosis of DMD if one is already on file. Genetic reports must describe a frameshift deletion, frameshift duplication, premature stop ("nonsense"), canonical splice site mutation, or other pathogenic variant in the DMD gene fully contained between exons 18 to 58 (inclusive) that is expected to lead to absence of a functional dystrophin protein (mutations in exons 1-17 or 59-71 are therefore not permitted).
The purpose of this study is to provide a single clinical study with a uniform approach to monitoring long-term safety and efficacy in participants who received delandistrogene moxeparvovec in a previous clinical study. No study drug will be administered as part of this study.
Locations
United States, Belgium, Germany, Hong Kong, Italy, Japan, Spain, Taiwan, United Kingdom
Has an established clinical diagnosis of DMD based on documentation of clinical findings and prior confirmatory genetic testing using a clinical diagnostic genetic test.
Has an established clinical diagnosis of DMD based on documentation of clinical findings and prior confirmatory genetic testing using a clinical diagnostic genetic test.
Ambulatory male with confirmed diagnosis of DMD and with a mutation in the dystrophin gene characterized by exon deletion amenable to exon 51 skipping.
Clinical diagnosis of DMD or clear onset of DMD symptoms at or before the age of 6 years. Confirmation of DMD gene mutation amenable to exon 44 skipping.
Participants must have completed 351-201 without permanent discontinuation of the investigational medicinal product (IMP) or withdrawal from the study.
This is a Phase 2 open-label extension (OLE) study to evaluate the long-term safety, tolerability, efficacy, pharmacokinetics, and the pharmacodynamics (PD) through potential exploratory biomarker(s) of intravenous (IV) WVE-N531 in patients with DMD who participated in another study of WVE-N531. All patients will have rolled over from a previous study of WVE-N531.
Genetic diagnosis of Duchenne muscular dystrophy (DMD) and confirmed pathologic variant in the dystrophin gene amenable to exon 44 skipping as reviewed by a central genetic counselor.
Genetic diagnosis of DMD and confirmed pathologic variant in the dystrophin gene amenable to exon 45 skipping as reviewed by a central genetic counselor.
Actively Recruiting
Belgium, Italy, Netherlands, Spain, United Kingdom
DMD subjects with a clinical diagnosis of DMD referred to the Duchenne Clinical Practice Guidelines for Progressive Muscular Dystrophy (2020 edition) and whose genetic test results were confirmed to be applicable to exon skipping at No.51.
Ambulatory male with confirmed diagnosis of DMD and with a mutation in the dystrophin gene characterized by exon deletion amenable to exon 51 skipping.
Clinical diagnosis of DMD or clear onset of DMD symptoms at or before the age of 6 years. Confirmation of DMD gene mutation amenable to exon 44 skipping.
Participants must have completed 351-201 without permanent discontinuation of the investigational medicinal product (IMP) or withdrawal from the study.
This is a Phase 2 open-label extension (OLE) study to evaluate the long-term safety, tolerability, efficacy, pharmacokinetics, and the pharmacodynamics (PD) through potential exploratory biomarker(s) of intravenous (IV) WVE-N531 in patients with DMD who participated in another study of WVE-N531. All patients will have rolled over from a previous study of WVE-N531.
Genetic diagnosis of Duchenne muscular dystrophy (DMD) and confirmed pathologic variant in the dystrophin gene amenable to exon 44 skipping as reviewed by a central genetic counselor.
Genetic diagnosis of DMD and confirmed pathologic variant in the dystrophin gene amenable to exon 45 skipping as reviewed by a central genetic counselor.
Locations
Belgium, Italy, Netherlands, Spain, United Kingdom
DMD subjects with a clinical diagnosis of DMD referred to the Duchenne Clinical Practice Guidelines for Progressive Muscular Dystrophy (2020 edition) and whose genetic test results were confirmed to be applicable to exon skipping at No.51.
Diagnosis of DMD based on clinical and phenotypic manifestations consistent with DMD (e.g., family history of DMD, elevated creatine kinase, dystrophin muscle biopsy, calf pseudohypertrophy, history of Gowers' sign, and gait impairment before 7 years of age) as confirmed by the Investigator.
Aged 6 to 17 with a documented mutation on the DMD gene and phenotype consistent with DMD.
Prior receipt of an AAV-based gene therapy (≥ 2 years after documented receipt of gene therapy administration or ≥ 3 years after randomization in a randomized study).
Has a definitive diagnosis of DMD based on documented clinical findings and prior genetic testing with a confirmed mutation in the DMD gene.
Male DMD patients who are ambulatory and aged ≥ 7 to < 10 years at the time of screening.
Actively Recruiting
United States, Australia, Belgium, Canada, Poland, Serbia, Spain, United Kingdom
Duchenne muscular dystrophy, diagnosed by mutations in the DMD (dystrophin) gene and/or absence of immunohistochemical staining for dystrophin on muscle biopsy.
Diagnosis of DMD based on clinical and phenotypic manifestations consistent with DMD (e.g., family history of DMD, elevated creatine kinase, dystrophin muscle biopsy, calf pseudohypertrophy, history of Gowers' sign, and gait impairment before 7 years of age) as confirmed by the Investigator.
Aged 6 to 17 with a documented mutation on the DMD gene and phenotype consistent with DMD.
Prior receipt of an AAV-based gene therapy (≥ 2 years after documented receipt of gene therapy administration or ≥ 3 years after randomization in a randomized study).
Has a definitive diagnosis of DMD based on documented clinical findings and prior genetic testing with a confirmed mutation in the DMD gene.
Male DMD patients who are ambulatory and aged ≥ 7 to < 10 years at the time of screening.
Locations
United States, Australia, Belgium, Canada, Poland, Serbia, Spain, United Kingdom
Duchenne muscular dystrophy, diagnosed by mutations in the DMD (dystrophin) gene and/or absence of immunohistochemical staining for dystrophin on muscle biopsy.