Clinical Research Directory

Key Inclusion Criteria: 1. Adult ≥18 years old, able to provide informed consent 2. Clinical diagnosis of LMNA-related dilated cardiomyopathy (DCM) with LV systolic dysfunction 3. Pathogenic or likely pathogenic LMNA mutation confirmed by a CLIA-certified/CAP-accredited laboratory 4. NYHA Functional Class I, II, or III 5. LVEF \>25% and ≤45% by echocardiography 6. Implantable cardioverter-defibrillator (ICD) or cardiac resynchronization therapy-defibrillator )CRT-D) implanted \>3 months prior to consent Key Exclusion Criteria: 1. Any chronic medical condition that, in the Investigator's opinion, would compromise participant safety or compliance 2. Hospitalization as an inpatient for the following conditions within 3 months prior to signing the ICF: Heart failure, Persistent/refractory ventricular arrhythmia requiring external defibrillation, or multiple/recurrent cardioversion/defibrillation by ICD Indication for, or history of, LV assist device or cardiac transplantation due to end-stage cardiac dysfunction 3. Current or anticipated need for chronic IV inotropic therapy