About this research study:

Lexeo Therapeutics is sponsoring a clinical trial to learn about the safety and tolerability of 3 different doses of an investigational gene therapy in participants with cardiomyopathy associated with Friedreich’s Ataxia. This investigational gene therapy is specifically designed to deliver a normal copy of the human FXN (Frataxin) gene to the body which may lead to improvement in the cardiomyopathy associated with Friedreich’s Ataxia. All eligible participants will receive one of the three doses of gene therapy; there will no placebo in this study. A placebo is therapy that has no active properties.

This study is being conducted at multiple different sites and will last approximately 5 years in total. The screening period will take up to 3 months, and then there will be 16 office visits during the first year following the investigational therapy administration. After that, there will be a long-term follow up period consisting of an additional 10 office visits over the next 4 years.

  • Immediately after the investigational gene therapy is given, participants will need to stay in the hospital for at least two nights
  • Participants will also need to reside close to the study site for up to 4 weeks after the investigational gene therapy is given
The investigational gene therapy and all study-related assessments will be provided at no cost. You may be reimbursed for study-related expenses, such as parking, meals, and other reasonable accommodations. Travel and accommodations will be arranged for participants.

To learn more about gene therapy please visit:

  1. FARA’s Roadmap to Gene Therapy Readiness

  2. You may be eligible if you:

    • Are male or female 18 - 50 years of age
    • Have a confirmed diagnosis of Friedreich’s Ataxia, with onset of disease before 25 years of age
    • Have evidence of cardiomyopathy
    • Are willing and able to undergo cardiac biopsies and MRIs
    There are additional eligibility criteria that will be assessed and discussed with you by the study doctor at the time of screening.

    Additional information can be found on:


    How to participate:

    This study is currently recruiting at University of California Los Angeles, University of South Florida, University of Iowa, Mayo Clinic, and University of Montreal (CHUM). Other sites may be added and will start recruiting at a later date.

    If you are interested in participation and would like to learn more about the study, please contact:

    University of California (UCLA), Los Angeles, CA - Aaron Fisher
    This email address is being protected from spambots. You need JavaScript enabled to view it. 310-206-8153
       or
    University of South Florida (USF), Tampa, FL - Lucretia Campbell
    This email address is being protected from spambots. You need JavaScript enabled to view it. 813-974-5633
       or
    University of Iowa, Iowa City, IA - Ciara Gibbs
    This email address is being protected from spambots. You need JavaScript enabled to view it. 319-384-9618
       or
    Mayo Clinic, Rochester, MN - Michaela Kolarova
    This email address is being protected from spambots. You need JavaScript enabled to view it. 507-266-7969
    Clinical Genomics Research Team This email address is being protected from spambots. You need JavaScript enabled to view it.
       or

    Anyone considering participating in a clinical trial should discuss the matter with his or her physician. FARA does not endorse or recommend any particular studies.