Lexeo Seeks Accelerated Approval for Cardiomyopathy Drug

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Lexeo Therapeutics says it will explore with FDA the potential to seek accelerated approval for LX2006 and its use in treating Friedreich ataxia (FA) cardiomyopathy based on just-announced “positive interim data” from two early-stage trials. “Across both the Lexeo SUNRISE-FA Phase 1/2 clinical trial (NCT05445323) and the Weill Cornell Medicine investigator-initiated Phase 1A trial (NCT05302271), LX2006 was well tolerated with no treatment-related serious adverse events, and clinically meaningful improvements in cardiac biomarkers were observed with increasing improvement over time,” the company says.

FA cardiomyopathy is typically characterized by left ventricular hypertrophy ultimately progressing to heart failure, Lexeo says, adding that a new natural history subset analysis conducted has shown elevated left ventricular mass index (LVMI) in adults with FA cardiomyopathy.

Elevated LVMI is an indicator of left ventricular hypertrophy and correlated with mortality in multiple cardiovascular conditions including FA cardiomyopathy. Lexeo says the recent studies showed that 75% of participants with elevated LVMI at baseline achieved a greater than 10% reduction at 12 months (n=4).  “Of all participants, 50% achieved a greater than 50% reduction in LVMI at 12 months (n=6).

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