The treatment of heart failure (HF) may be entering a new era with clinical trials currently assessing the value of gene therapy as a novel therapeutic strategy. If these trials demonstrate efficacy then a new avenue of potential treatments could become available to the clinicians treating HF. In principle, gene therapy allows us to directly target the underlying molecular abnormalities seen in the failing myocyte. In this review we discuss the fundamentals of gene therapy and the challenges of delivering it to patients with HF. The molecular abnormalities underlying HF are discussed along with potential targets for gene therapy, focusing on SERCA2a. We discuss the laboratory and early clinical evidence for the benefit of SERCA2a gene therapy in HF. Finally, we discuss the ongoing clinical trials of SERCA2a gene therapy and possible future directions for this treatment.
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