About this trial
The purpose of Study LX2006-03, a multicenter, Phase 2, open-label, randomized, controlled study, is to evaluate the efficacy and safety of LX2006 gene therapy in participants with Friedreich ataxia (FA) cardiomyopathy (CM).
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Male or female, age at least 6 years at the time of signing the informed consent (and assent, if applicable).
Diagnosis of FA, based on clinical phenotype and genotype (GAA expansion on the frataxin gene)
Onset of FA on or before 25 years of age
Confirmed left ventricular hypertrophy and abnormal left ventricular mass index
Disqualifiers
Presence of other forms of cardiomyopathy that contribute to heart failure
Current use of inotrope infusion or presence of a ventricular assist device
Contraindication to cardiac MRI
Prior organ transplant
Trial design
Crossover
Treatments tested in this trial
LX2006
GeneticAdeno-associated viral vector encoding the FXN gene (AAVrh.10hFXN)
Usual Care
Other interventionCohort 1: Participants ≥16 years of age with FA-CM Participants will receive usual care for 26 weeks before receiving treatment with LX2006 (single crossover).
Treatment groups
Trial outcomes
Primary outcomes
Cohort 1: Percent change from baseline in left ventricular mass index by cardiac MRI
Cohort 2: Incidence and severity of treatment-emergent adverse events
Cohort 2: Change in clinical routine safety laboratory tests as assessed by standardized clinical laboratory reference ranges
Cohort 2: Change in clinical vital signs (body temperature [°C])
Secondary outcomes
Cohorts 1 and 2: Change from baseline in high-sensitivity troponin I
Cohort 1: Change from baseline in maximal wall thickness by cardiac MRI
Cohort 1: Number of the following cardiovascular events as collected from the participant by the study doctor during scheduled study visits
* Death due to any cause * Hospitalization for heart failure * Non-fatal stroke * Non-fatal heart attack * Non-fatal life-threatening rapid or irregular heartbeat * Heart transplant * Insertion of a left ventricular assist device (pump) in the heart
Cohort 1: Change from baseline in modified Friedreich's Ataxia Rating Scale
A neurological assessment tool for Friedreich ataxia that is measured on a scale of 0 to 93 with high scores indicating greater physical impairment
Sponsors and contacts
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