CAMBRIDGE, Mass.--(BUSINESS WIRE)--Scholar Rock, a biotechnology company focused on discovering and developing drugs that selectively target supracellular activation of growth factors in the disease microenvironment, today announced the appointment of Yung H. Chyung, MD, as Chief Medical Officer. Dr. Chyung has previously held significant leadership roles at Dyax Corp. and Genzyme Corporation. He has a wide range of expertise in clinical trials, translational medicine and medical affairs, involving drug candidates in development as well as approved products.