Sierra Oncology, Inc. announced the appointments of Kevin Norrett as Chief Business Officer. Kevin Norrett brings more than 20 years of experience to Sierra and over the course of his career has become an expert at helping clinical stage companies transition to full commercialization. Most recently, Kevin was Chief Commercial Officer at Angion Biomedica, a clinical stage company with a focus in acute organ injury and fibrosis. The company also appointed William D. Turner as Chief Regulatory and Technical Operations Officer. William Turner has more than 25 years of drug development and drug commercialization experience, leading organizations through all phases of product development including commercial drug process, method and facility validations, all phases of clinical programs, numerous drug application filings and several global approvals. William was Senior Vice President of Technical Operations and Regulatory Science at Aimmune Therapeutics for several years.