Alnylam Pharmaceuticals, Inc. , the leading RNAi therapeutics company, announced moderated poster presentations of new data from the landmark HELIOS-B Phase 3 clinical trial, which evaluated vutrisiran for the treatment of ATTR amyloidosis with cardiomyopathy (ATTR-CM) in a population representative of today’s patients. Data were presented at the American College of Cardiology’s Annual Scientific Session (ACC.25) held in Chicago, Illinois. These data build upon the body of clinical evidence which supported the recent U.S. Food and Drug Administration (FDA) approval of AMVUTTRA^® (vutrisiran) for the treatment of the cardiomyopathy of wild-type or hereditary transthyretin-mediated amyloidosis in adults to reduce cardiovascular mortality, cardiovascular hospitalizations and urgent heart failure visits. AMVUTTRA is an RNAi therapeutic that works upstream to deliver rapid knockdown of transthyretin, addressing the disease at its source, with four subcutaneous doses per year.

“The HELIOS-B study continues to deliver a robust data package showcasing the unique, differentiated value of vutrisiran as a first-line treatment option that can enable patients with ATTR-CM to live longer, better, and healthier lives,” said Pushkal Garg, M.D., Chief Medical Officer of Alnylam. “Data showing beneficial effects on cardiac systolic and diastolic function are novel and indicate the direct impact of vutrisiran in cardiac structure and function of patients living with ATTR-CM. These findings, together with the observed improvements in functional capacity, health status and quality of life, as well as the reductions in all-cause mortality and cardiovascular events, demonstrate the rapid, broad, and sustained impacts of vutrisiran on ATTR-CM and underscore the importance of early intervention for this progressive and ultimately fatal disease.”