Prof. Benoit You, MD, PhD, is a French academic medical oncologist specializing in drug development, clinical trials, pharmacology–pharmacokinetics, and the kinetics of serum tumor markers, along with gynecological cancers. After his residency in Lyon, France, he spent 18 months engaged in the Drug Development Program of Princess Margaret Hospital, Canada, as a clinical research fellow. In 2010, he returned to Lyon to develop an early-phase trial unit for solid tumors at Lyon University Hospital. He is now Director of an early-phase trial unit called CITOHL (~ 400 inclusions per year), a scientist at the CICLY laboratory specializing in pharmacology and mathematical modeling (University of Lyon); a teacher at Lyon Medical School; an oncology referent for the French gestational trophoblastic center; and a member of the ARCAGY-GINECO collaborative group. He is the principal investigator-coordinator of 10 academic early-phase trials, the principal investigator of about 40 trials at his center, and the co-author of more than 280 articles (H index = 37). He developed the first trial testing of the immunotherapy drug avelumab for gestational trophoblastic tumor patients, which is now approved in the NCCN registry (You et al. J Clin Oncol, 2020).