BELLUS Health Inc. announced Donald Olds will replace Neil Flanzraich, who will step down from the board of directors, effective May 25, 2012. Donald Olds is the President and Chief Executive Officer of Presagia. Prior to joining Presagia, Mr. Olds was the COO and CFO of Aegera Therapeutics. At Aegera, Mr. Olds was responsible for leading clinical operations, business development, finance, administration, and mergers and acquisitions.