Laurent Peyrin-Biroulet is a professor of medicine and head of the inflammatory bowel disease (IBD) unit (Inserm U1256 NGERE) at the Nancy University Hospital in France. Upon receiving his medical degree and PhD, he undertook a postdoctoral fellowship at the IBD Centre in Lille in 2007, before taking a research position at the Mayo Clinic in Rochester, USA (2008–2009). He is the current President of the European Crohn’s and Colitis Organization (ECCO) and current scientific secretary of IOIBD. He was the coordinator for the development of the first Disability Index for IBD and of the Treat to Target (STRIDE) recommendations. He proposed the first definitions of early Crohn’s disease and of disease severity for IBD. He is co-founder of the Spectrum Consortium and President of the ICARE project. Author of more than 800 peer-reviewed articles and more than 200 non-peer-reviewed articles, he was an associate editor of Digestive Liver Diseases (2013–2017) and is a member of the editorial board of Alimentary Pharmacology and Therapeutics, Journal of Crohn’s and Colitis, Expert Review of Clinical Immunology, and Gut. He is the Associate Editor of Clinical Gastroenterology Hepatology since 2017. He also serves as a reviewer for several international journals and he is a staff contributor of the Selected Summary section of Gastroenterology.