QUEBEC CITY, May 7 /PRNewswire-FirstCall/ - AEterna Zentaris Inc. (TSX: AEZ - News; NASDAQ: AEZS - News), a global biopharmaceutical company focused on endocrine therapy and oncology, today announced the filling of two key management positions, strengthening the existing management team. The Company named Ellen McDonald, MBA, Senior Vice President, Business Operations and Chief Business Officer as well as Nicholas J. Pelliccione, Ph.D., Senior Vice President, Regulatory Affairs and Quality Assurance.