• Both males and females of any age

• Individuals with Friedreich ataxia (FA): Participants that meet genetically confirmed diagnosis of Friedreich ataxia

• Written informed consent provided

‣ Informed consent must be obtained for all participants

⁃ For underage participants, they and the parent/ legally authorized representative have to sign the informed consent form, child assent (if applicable)

⁃ Persons who are not legally competent require the informed consent of their legally authorized representative