(CLOSED)Prot# TZP-101-CL-P005: A Mltcntr, Rndmzd, Dble-Blnd, Plcbo-Cntrlld, Dse-Rnging Stdy to Assess the Effccy & Sfey of TZP-101 When Administered as a 30 Minute I.V. Infusion for Postoperative Ileus to Subjects Undergoing Major Open Abdominal Surgery