Anaplerotic Therapy Using Triheptanoin for Patients With Glycogen Storage Disease Type I

This is an open-label study. The UX007 (triheptanoin) starting dose will be 0.25 - 0.5 g/kg and titrated to a maximum of 2.5g/kg depending the on the subject's tolerance. The dose may be reduced if not tolerated. The compound will be administered 3-4 times per day, either at the end of a meal or with a snack. It should be given at least 2 hours apart from any cornstarch dose to allow each to act independent of one another, and to prevent the risk of increased gastrointestinal side effects. The doses may be held during episodes of gastroenteritis or diarrhea.