CAMBRIDGE, Mass.--(BUSINESS WIRE)--Dimension Therapeutics, Inc. ("Dimension" or the "Company"), a leading rare disease company advancing novel, liver-directed treatments for diverse genetic disorders, today announced that Jean M. Franchi has been appointed to the newly created position of Chief Financial Officer and Treasurer. Ms. Franchi brings more than 20 years of experience building and leading corporate and divisional financial teams from the R&D stage to commercial operations in the public and private pharmaceutical, biotech, and diagnostics sectors.