David Y. Liu

Chief Scientific Officer, Head of R&D

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Dr. Liu has served as our Chief Scientific Officer (CSO) since May 2013 and has served as CSO and Head of Research and Development since February 2016. Prior to Protagonist Therapeutics, Dr. Liu was the Chief Operating Officer and a co-founder of Trenovus, Inc., from 2010 to 2012. Prior to Trenovus, Dr. Liu was Vice President of Research and Corporate Officer at FibroGen Inc., from 2002 to 2010. Prior to FibroGen, Dr. Liu served as Director of Inflammation Research at Scios, Inc., now part of Johnson & Johnson, from 1992 to 2002. Dr. Liu held a position as an academic researcher at Brigham and Women’s Hospital, Harvard Medical School, and was Instructor and Assistant Professor in the Department of Medicine, Harvard Medical School, from 1976 to 1986. Dr. Liu received his Ph.D. in microbiology and immunology from Michigan State University, and his

B.S. in chemistry from The University of Chicago.