Atrium Therapeutics, Inc. is a biopharmaceutical company engaged in the delivery of ribonucleic acid (RNA) therapeutics for people living with cardiomyopathy. Its technology leverages the targeted RNA delivery platform, which combines the tissue selectivity of monoclonal antibodies (mAbs) and other targeted delivery ligands with oligonucleotides. It is designed to allow selective targeting of the underlying genetic drivers of disease. Its development pipeline consists of programs that target genetically validated drivers of cardiomyopathy, which include Protein Kinase AMP-Activated Non-Catalytic Subunit Gamma 2 (PRKAG2) and Phospholamban (PLN). Its genetic drivers are associated with PRKAG2 syndrome and PLN cardiomyopathy, which is a genetic heart condition associated with life-threatening forms of heart disease. Its programs are supported by preclinical data, in addition to positive clinical data generated in neuromuscular indications using the same RNA delivery platform technology.