Professor Blay has held the post of General Director of the Centre Léon Bérard in Lyon, France, since 2014 and renewed in 2019. He became President of Unicancer in 2019. He is President of the French Sarcoma Group and Director of the European Reference Network for Rare Adult Cancers (EURACAN). In 2016 became Secretary of the Oncology Commission of the French Academy of Medicine.
Between 2009 and 2012 he held the position of President of the European Organisation for Research and Treatment of Cancer (EORTC). Prof. Blay currently holds various other university and hospital positions. He is a member of the European Union Committee of Experts of Rare Disease, the European Commission’s Scientific Panel for Health (SPH) and served as a Faculty Coordinator for Sarcoma for the European Society of Medical Oncology (ESMO) between 2012 and 2016.