Provided herein are
gene editing systems and compositions directed to effectuate
in vivo edits in the LPA
gene. Treatment or prevention of cardiovascular
disease through disruption of the production of apo(a) through genetic editing and the reduction of the blood
lipoprotein(a) [Lp(a)] concentration is disclosed herein. Disclosed are nickase-based
gene editing systems designed to effectuate the installation of insertions and / or deletions (
indel variants) and / or non-synonymous variants in the coding sequence of LPA. The nickase-based gene editing systems generally comprise one or more mRNAs that
encode one or more nickases and a plurality of guide oligonucleotides (e.g., gRNAs) and may be delivered
in vivo to a mammalian subject in need thereof via a suitable
delivery system, such as lipid nanoparticles (LNPs) (with or without GalNAc targeting moieties) intravenously, or otherwise, administered to a patient as potentially a once-and-done therapeutic. The manufacturing, use, and formulation of the gene editing systems and compositions are also disclosed.