Pierre Amarenco is Professor of Neurology at Paris University, Paris, France. He is chair and funder of the department of Neurology and Stroke Center as well as of SOS-TIA clinic at Bichat university hospital in Paris. He is co-chair of the “Clinical research in atherothrombosis” group at INSERM LVTS-1148 unit. Pierre Amarenco’s research field is understanding and preventing stroke. He has published more than 400 research papers, reviews and book chapters; he particularly contributed to the descriptions of cerebellar infarctions, aortic arch atherosclerosis in relation with stroke, risk factors for stroke (including genetic and metabolic risk factors), and participated as a member or chair of Executive or Steering Committees of many clinical trials using antithrombotic agents, lipid-modifying agents (including SPARCL trial, Treat Stroke to Target Trial, XANTUS, SOCRATES, THALES, SPIRE and PROMINENT trials) or acute revascularization (RECANALISE study), and is leading the TIAregistry