Overview Study of Asimadoline to Treat Diarrhea-Predominant Irritable Bowel Syndrome (D-IBS) Status: Completed Trial end date: 2013-06-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine whether asimadoline is safe and effective at treating D-IBS. Phase: Phase 3 Details Lead Sponsor: Tioga PharmaceuticalsCollaborator: RTI Health Solutions