This is a Physician-sponsored pilot study, whose purpose it is determine if high-dose oral
Coenzyme Q10 (CoQ10) is safe and tolerated in patients with sporadic forms of adult-onset
spinocerebellar ataxias (SAOA), a group of degenerative neurological disorders affecting the
cerebellum and pathways to and from the cerebellum, with or without additional central
nervous system (CNS) manifestations, in the absence of family history of degenerative
ataxias.