1 orBec ® (oral beclomethasone dipropionate) NDA orBec ® (oral beclomethasone dipropionate) NDA DOR BioPharma, Inc. Oncologic Drugs Advisory Committee May 9, 2007 DOR BioPharma, Inc. Oncologic Drugs Advisory Committee May 9,
2 Christopher Schaber, Ph.D President & CEO DOR BioPharma, Inc. President & CEO DOR BioPharma, Inc
3 AgendaAgenda Introduction orBec ® beclomethasone dipropionate Acute Graft-vs-Host Disease (GVHD) Rationale for oral BDP Randomized, placebo-controlled trials of oral BDP Summary of clinical trial results Benefit/Risk
4 PresenterPresenter George B. McDonald, MD Professor of Medicine, University of Washington Head, Gastroenterology/Hepatology Section, Fred Hutchinson Cancer Research Center ModeratorModerator Timothy C. Rodell, MD Medical Monitor DOR BioPharma, Inc
5 External Advisors David Hockenbery, MDMember at the Fred Hutchinson Cancer Research Center Lead Investigator, Study ENT Theodore Gooley, PhDMember at the Fred Hutchinson Cancer Research Center Lead Statistician, Study 875 Keith Sullivan, MDDuke University Medical Center Chief, Medical Oncology and Transplantation
6 DOR BioPharma, Inc. Focused on treatments for –Life-threatening side effects of cancer treatments –Serious GI diseases Enteron Pharmaceuticals is a wholly owned subsidiary of DOR BioPharma, Inc
7 Beclomethasone Dipropionate Diester of beclomethasone, a potent synthetic corticosteroid Anti-inflammatory and immunosuppressive effects Widely used in topical applications –Inhaled –Intranasal –Enema
8 NomenclatureNomenclature BDP –Beclomethasone dipropionate Oral BDP –Formulation Immediate-release (IR) tablet (1 mg) Delayed-release, enteric-coated (EC) tablet (1 mg) –Proposed dosing 1 IR and 1 EC 4 times daily orBec ® –Proposed trade name for oral BDP
9 Development History Oral BDP development began (Investigator-Initiated IND) 1991 Development funded by FDA Orphan Drugs Division 1995 Phase 1 trial completed (Study 615) 1998 Phase 2 trial completed (Study 875) 1998 Orphan Indication Designation 1999 Ownership was transferred to Enteron Pharmaceuticals 2000 Fast Track Designation 2005 Pivotal Phase 3 trial completed under Special Protocol Assessment (SPA), Division of Gastrointestinal and Coagulation Drug Products (Study ENT 00-02) 2006 NDA submitted September 21, 2006
10 Studies of Oral BDP in Patients with GI GVHD Patients enrolled StudyPhaseDescriptionSponsorPlaceboBDPTotal 6151UncontrolledInvestigator initiated UncontrolledInvestigator initiated Single-center, randomized, placebo- controlled Investigator initiated ENT Multicenter, randomized, placebo- controlled Enteron Pharmaceuticals (subsidiary of DOR BioPharma, Inc.) Total
11 Basis for Approval Approval is merited based on a favorable safety profile and clinical benefits as measured by reductions in –GVHD treatment failure –Mortality at transplant Day 200 –Mortality 1 year post-randomization
12 Proposed Indication for orBec ® (oral BDP) orBec is indicated for the treatment of graft versus host disease (GVHD) involving the gastrointestinal (GI) tract in conjunction with an induction course of high-dose prednisone or prednisolone