David Johnston

Executive Vice President, Clinical Development
Serves as EVP and global head of clinical development for PPD. Responsible for project delivery and provides strategic direction to the company’s Phase II-IV organization in the Americas, Europe, Middle East and Africa (EMEA), and Asia-Pacific. Previously, Dr. Johnston oversaw PPD® Laboratories, the company’s industry-leading, comprehensive laboratory operations. Earned a BS degree in biology from UNC at Greensboro and a Ph.D. in microbiology and immunology from UNC School of Medicine.