Overview A Study With GW597599 And GR205171: Potential New Drugs For The Treatment Of Primary Insomnia Status: Completed Trial end date: 2008-05-07 Target enrollment: Participant gender: Summary Patients with Primary Insomnia will be treated with GW597599 and GR205171 to evaluate the efficacy in the sleep difficulties associated with insomnia Phase: Phase 2 Details Lead Sponsor: GlaxoSmithKlineTreatments: VestipitantVofopitant