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Lexeo Therapeutics Announces Regulatory Update and Registrational Trial Design for LX2006 Gene Therapy in Friedreich Ataxia

$LXEOPress releaseJun 15, 2026, 7:00 AM ETRead the release

Lexeo Therapeutics has finalized the protocol and statistical analysis plan for SUNRISE-FA 2, the pivotal trial for its gene therapy candidate LX2006 in Friedreich ataxia cardiomyopathy. The study utilizes an open-label design with 13 treated patients and 13 untreated controls, avoiding a placebo arm. The primary endpoint is Left Ventricular Mass Index (LVMI) assessed via MRI at 6 months, with the FDA having removed the cardiac frataxin protein expression co-primary endpoint.

Key figures

Drug Name
LX2006
Phase Of Trial
Pivotal (Phase 3 equivalent)
Trial name
SUNRISE-FA 2
Enrollment start
End of June 2026
Primary endpoint
Left ventricular mass index (LVMI)
Total participants
26
Topline data target
H2 2027
Control participants
13
Treated participants
13
Bl A submission target
H1 2028
Efficacy readout time
6 months

AI analysis

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    LXEO: Lexeo Therapeutics Announces Regulatory Update and Registrational Trial Design for LX2006 Gene Therapy in Friedreich Ataxia — AI Analysis | Signal8