Disease Directory Emery-Dreifuss Muscular Dystrophy
Neuromuscular

Emery-Dreifuss Muscular Dystrophy

Also known as: EDMD, humeroperoneal muscular dystrophy

Prevalence

1 in 100,000

Onset

Childhood to early adolescence

Type

X-linked recessive, autosomal dominant, or autosomal recessive

Gene

EMD, LMNA

About Emery-Dreifuss Muscular Dystrophy

Emery-Dreifuss Muscular Dystrophy is characterised by the clinical triad of early joint contractures (elbows, ankles, and spine), slowly progressive humeroperoneal muscle weakness, and life-threatening cardiac disease including conduction defects and cardiomyopathy. It is caused by mutations in EMD (encoding emerin) in the X-linked form or LMNA (encoding lamins A/C) in autosomal forms. Sudden cardiac death due to complete heart block is a significant risk even in mildly affected individuals.

Common Clinical Features

Early rigid spine and elbow flexion contractures Humeroperoneal pattern muscle weakness Progressive atrioventricular conduction defects Dilated cardiomyopathy Rigid spine with limited neck flexion Foot drop due to ankle contractures Syncope or pre-syncope from arrhythmia

Clinical Trial Eligibility Tips

What to know before applying to Emery-Dreifuss Muscular Dystrophy trials.

Cardiac eligibility is critical — most trials require a baseline 24-hour Holter monitor and echocardiogram; pacemaker or ICD presence may affect eligibility depending on the trial

Genetic subtype (EMD vs LMNA) determines trial eligibility as laminopathies and emerin-deficiency have distinct mechanisms and separate trial pipelines

Contracture severity graded by goniometry is a standard functional metric; document elbow and ankle range of motion formally before applying

Patient Resources

Patient Organization

Muscular Dystrophy Association (MDA)

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Orphanet

European reference resource for rare diseases (ORPHA:261)

View on Orphanet ↗

NORD

National Organization for Rare Disorders

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Find recruiting Emery-Dreifuss Muscular Dystrophy trials

Search 500,000+ studies from ClinicalTrials.gov, filtered for Emery-Dreifuss Muscular Dystrophy. Updated daily.

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