Ms. Vandertie joins Viracta from Conatus Pharmaceuticals Inc., having spent thirteen years there, most recently as Vice President, Finance. She served in senior financial consulting roles at several companies from 2002 to 2008. From 1998 to 2004, Ms. Vandertie held various positions, including Chief Financial Officer, at Althea Technologies Inc., which was acquired by Ajinomoto Co. in 2013. She held the position of Corporate Controller at Vical Incorporated, a publicly traded biotechnology company, from 1993 to 1997. From 1990 to 1993, Ms. Vandertie held the position of Corporate Controller at California Structures, a real estate development company. She served as an auditor with Ernst & Young from 1987 to 1990. Ms. Vandertie received her B.S. degree from the University of Northern Colorado.
Mr. Mueller joins Viracta from Conatus Pharmaceuticals Inc., a company he joined in 2013, where he served most recently as Vice President, General Counsel and Secretary until its merger with Histogen, Inc. Prior to that, Mr. Mueller held positions of increasing responsibility at Apricus Biosciences, Inc. in the areas of intellectual property, business development and alliance management. Mr. Mueller has a Bachelor of Chemical Engineering from the University of Minnesota, a J.D. from Thomas Jefferson School of Law and an M.B.A. from San Diego State University.
Prior to joining Viracta, Robert conducted Business Development for a global clinical research organization, working closely with many biotech organizations. Robert’s experience includes roles in clinical operations and management of global clinical trials in rare disease and immunology related indications across all phases of development. Robert also conducted molecular biology and microbiology research at Wright State University and was the recipient of a fellowship from The Oak Ridge Institute for Science Education in areas of biodefense interest with The United States Air Force Research Laboratory.
Cheryl Madsen joins Viracta Therapeutics from Calithera Biosciences where she served as Vice President of Regulatory Affairs. Previously, Cheryl was the Vice President of Regulatory Affairs at Peloton Therapeutics where she facilitated the successful acquisition of their HIF2-α inhibitor (belzutifan) by Merck. Prior to that Cheryl served as Sr. Director at Medivation (acquired by Pfizer), where she played an instrumental role in the initial global regulatory filings, approval and launch of XTANDI® (enzalutamide) for the treatment of metastatic castration-resistant prostate cancer. In addition to her regulatory responsibilities, she served as Project Team Leader for XTANDI from 2015-2016. Prior to Medivation, she held positions of increasing responsibility at several successful small- to medium-size biotechnology companies. Cheryl started her career at Genentech, and during her 13‑year tenure, was responsible for the original filing and approval of AVASTIN® (bevacizumab) for first-line metastatic colorectal cancer. She played a critical role in the parallel filing and approval of the HERCEPTIN® (trastuzumab) BLA for metastatic breast cancer and the HercepTest™ PMA, an in vitro diagnostic for HER2 expression and patient selection. Cheryl received her bachelors degree in Psychology from U.C. Santa Cruz and completed additional post-graduate work in Molecular Biology and Biochemistry at U.C. Berkeley. She holds U.S. and Global Regulatory Affairs Certifications from the Regulatory Affairs Professional Society.
Dr. Faller is the Scientific Founder of Viracta Therapeutics and serves as the Chief Scientific Officer. Previously, Dr. Faller also served as the Chief Medical Officer for Viracta. He is the Chair of the Scientific Advisory Board. Dr. Faller is a Professor of Medicine at Boston University Medical Center, and previously served as the Director of the Cancer Center and held the Grunebaum Chair for Cancer Research. He has founded a number of biotechnology companies and holds or has held several senior management positions in biotech and global pharmaceutical companies. Dr. Faller received his medical degree from the Harvard University where he also served on the faculty of Brigham and Womens Hospital, Dana-Farber Cancer Institute and Boston Childrens’ Hospital. He received his PhD from the Massachusetts Institute of Technology.
Dr. Lisa Rojkjaer joined Viracta Therapeutics in May 2020 as Chief Medical Officer. Previously, Dr. Rojkjaer served as the Chief Medical Officer at Nordic Nanovector from November 2016 to April 2020. Prior to this, Dr. Rojkjaer held several senior management positions in biotech and global pharmaceutical companies. She was the Global Clinical Program Head for AML at Novartis Oncology from October 2013 to November 2016. Her previous roles also included Chief Medical Officer at Molecular Partners, and Vice President, Head of Clinical Development at MorphoSys AG. Dr. Rojkjaer received her medical degree from the University of Toronto, where she also completed her internal medicine and hematology training.
Mr. Chevallard has served as Chief Financial Officer of Viracta since July 2019 and Chief Operating Officer since March 2021. Previously, Mr. Chevallard served as the Chief Financial Officer and principal financial officer at Regulus Therapeutics from May 2017 to July 2019. Mr. Chevallard joined Regulus Therapeutics in December 2012 as Vice President, Accounting and Financial Reporting and served as Vice President, Finance from May 2013 to April 2017. Prior to joining Regulus Therapeutics, Mr. Chevallard held various senior roles in corporate finance, accounting and financial reporting including Controller and Senior Director, Finance of Prometheus Laboratories Inc. (acquired by Nestlé Health Science in July 2011). Prior to joining Prometheus, Mr. Chevallard spent approximately five years in public accounting at Ernst & Young, LLP in their assurance services practice. He received his Bachelor of Accountancy from the University of San Diego and is a Certified Public Accountant in the state of California.
Dr. Royston has served as President, Chief Executive Officer, and Director of Viracta since 2015. From 1990 to 2017, Dr. Royston was a Managing Partner of Forward Ventures, a life science venture capital firm. From 1990 to 2000, Dr. Royston also held the position of Chief Executive Officer of the Sidney Kimmel Cancer Center. Prior to that, Dr. Royston was the Director of Clinical Immunology at University of California, San Diego Cancer Center. Dr. Royston was the co-founder of Hybritech, Inc., which developed the PSA test for prostate cancer; and the co-founder of IDEC Corporation, which developed Rituxan, the first approved monoclonal antibody therapy for lymphoma, and which subsequently merged with Biogen to form Biogen Idec, now Biogen. Dr. Royston currently serves on the board of directors of Biocept, Inc. (NASDAQ:BIOC). Dr. Royston received his B.A. and M.D. degrees from Johns Hopkins University and completed post-doctoral training in internal medicine and medical oncology at Stanford University.