Overview Long-Term Safety and Efficacy Evaluation of EPI-743 in Children With Leigh Syndrome Status: Active, not recruiting Trial end date: 2021-12-31 Target enrollment: Participant gender: Summary EPI-743 in Leigh syndrome participants that participated in previous EPI743-12-002 (NCT01721733) study. Phase: Phase 2 Details Lead Sponsor: Edison Pharmaceuticals IncPTC TherapeuticsTreatments: Ubiquinone