Heart Failure Clinical Trial
Modulation of SERCA2a of Intra-myocytic Calcium Trafficking in Heart Failure With Reduced Ejection Fraction
It is believed that targeted SERCA2a enzyme replacement in HFrEF patients will correct defective intracellular Ca2+ hemostasis, resulting in improved cardiac contractile function and energetics which will, in turn, translate to improved clinical outcomes. Additionally, it is hypothesized that correcting SERCA2a dysfunction will also improve coronary blood flow through correction of the impaired endothelium-dependent nitric oxide-mediated vasodilatation observed in heart failure.
MUSIC-HFrEF1 is an interventional study of SRD-001, an adeno-associated virus serotype 1 (AAV1) vector expressing the transgene for sarco(endo)plasmic reticulum Ca2+ ATPase 2a isoform (SERCA2a), in anti-AAV1 neutralizing antibody (NAb) negative subjects with ischemic or non-ischemic cardiomyopathy and New York Heart Association (NYHA) class III/IV symptoms of heart failure with reduced ejection fraction (HFrEF).
The Phase 1 trial is an open-label, uncontrolled study investigating two doses of SRD-001 at 3E13 and 4.5E13 viral genomes (vg) in 3-4 participants at each dose level.
The Phase 2 trial is a randomized, double-blind, placebo-controlled trial with prospective assignment to a single dose of either SRD-001 or placebo in a 1:1 ratio and a total sample size of N=50.
Main Inclusion Criteria:
Chronic ischemic or non-ischemic cardiomyopathy
NYHA class III/IV
Guideline-directed medical therapy for heart failure; ICD
Main Exclusion Criteria:
Restrictive cardiomyopathy, hypertrophic cardiomyopathy, acute myocarditis, pericardial disease, amyloidosis, infiltrative cardiomyopathy, uncorrected thyroid disease or discrete left ventricular (LV) aneurysm
Prior heart transplantation, left ventricular reduction surgery (LVRS), cardiomyoplasty, passive restraint device (e.g., CorCap™ Cardiac Support Device), mechanical circulatory support device (MCSD) or cardiac shunt
Likely to receive cardiac resynchronization therapy, cardiomyoplasty, LVRS, conventional revascularization procedure or valvular repair in the 6 months following treatment
Likely need for an immediate heart transplant or MCSD implant due to hemodynamic instability
Inadequate hepatic and renal function
Diagnosis of, or treatment for, any cancer within the last 5 years except for basal cell carcinoma or carcinomas in situ where surgical excision was considered curative
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