The 27th United European Gastroenterology (UEG) Week provides an invaluable educational experience and opportunity to network with top minds in the field, as well as a global community of more than 19500 Medical and Gastroenterology & Hepatology professionals from every subspecialty. Evidera will be presenting the following poster: Clinical Effectiveness of First-Line Anti-TNFa Therapies and Second-Line Anti-TNFa Therapy Post-Vedolizumab Discontinuation in Patients with Ulcerative Colitis or Crohn’s Disease. Presented by: Bressler B, Yarur A, Kopylov U, Bassel M, Brett N, Lissoos T, Lopez C, Natsios A, Saha S, Kifnidi C, Demuth D, Patel H, Mantzaris GJ.