Interim data from two early stage Friedreich’s ataxia (FA) cardiomyopathy studies from Lexeo Therapeutics Inc. hit the mark by reducing heart muscle thickness, a key cause of death among patients with the rare disease. The results came from the Sunrise-FA phase I/II study and an investigator-initiated phase Ia study of LX-2006, an adeno-associated virus-mediated gene therapy encoding the human frataxin gene. The drug is designed to improve frataxin protein expression to improve mitochondrial cell function.