Pyruvate Dehydrogenase Complex Deficiency

This is a medical research study to test a medication in patients with a disease called Pyruvate Dehydrogenase Complex (PDC) Deficiency. The medication is triheptanoin, which is currently FDA approved for the treatment of Long-Chain Fatty Acid Oxidation Disorders. Previous research suggests that triheptanoin may also be effective in the treatment PDC Deficiency. This study will investigate the safety and efficacy (how well it works) of triheptanoin in patients with PDC Deficiency.

Expanded Access (EA) will provide a transition to continue therapy for those patients who are currently in the open label extension of the Phase III study, SL 1009-01, while also allowing new patients diagnosed with PDCD who meet the eligibility criteria to also have access to therapy that would be otherwise unavailable.