Principal Scientist
Gilead Sciences, Inc.
Chengdong (Jason) Xu has over 15 years of experience in biologics development. As Principal Scientist at Gilead Sciences, he leads analytical strategies for multiple early-phase, late-phase, and commercial programs, focusing on method lifecycle management, regulatory filings, and external testing lab and CDMO collaboration. He previously held senior scientific roles at Merck & Co. and Boehringer Ingelheim, where he contributed to analytical method development, validation, transfer, and regulatory support for monoclonal antibodies, ADCs, and other biologics. His work has supported successful product filings and commercial launches. Jason is a lead inventor on a patent and has authored over 20 scientific publications.