Yang Angela Liu is a pharmaceutical science team leader (PSTL) at Pfizer Worldwide Research Development and Medical. She leads multi-disciplinary pharmaceutical science project teams to come up with innovative CMC strategies to deliver clinical and commercial supply for Pfizer's small molecule portfolios. she established a highly competent PAT team and the material sparing and low maintenance PAT method development framework. She leads the development, implementation, and global filing of Pfizer's first integrated control strategy with real-time PAT in-process control as a key element and gained global approval for Daurismo in 2018.