Overview A Study of Glyceryl Tri-(4-phenylbutyrate) (GT4P) Status: Completed Trial end date: 2005-07-01 Target enrollment: Participant gender: Summary To determine the safety and tolerability of single oral doses of HPN-100 as a formulation (GT4P-F) and GT4P as the active pharmaceutical ingredient (GT4P-API) administered to healthy male subjects. Phase: Phase 1 Details Lead Sponsor: Horizon Pharma Ireland, Ltd., Dublin IrelandCollaborator: Ucyclyd Pharma, Inc.Treatments: 4-phenylbutyric acidPhenylacetic acidSodium Benzoate