Dr. Merrifield serves as Chief Regulatory Officer at Rion. She brings more than 15 years of experience in the pharmaceutical industry to Rion. She has led the regulatory strategy and submissions for products from discovery to commercialization, with significant expertise in cell and gene therapy products, monoclonal antibodies, vaccines, and protein therapies. She has regulatory expertise in Chemistry, Manufacturing, and Controls (CMC), including non-clinical and clinical aspects of pharmaceutical development. She has been the lead of global pharmaceutical teams consisting of clinical, preclinical, CMC, statistician, and pharmacovigilance staff to advance therapeutic products through the development stages. Prior to Rion, she has held the following positions: Vice President, Clinical and Regulatory Affairs at Pharmatech Associates; Director of Regulatory and Strategic Development at Clinipace Worldwide; Director of Regulatory Affairs at Bellicum Pharmaceuticals; Regulatory and Affairs Project Manager at Sabin Vaccine Institute; and senior scientific roles at Sanofi and GSK. She earned both a Ph.D. and B.S. in chemistry from Western University.