P122 The clinical and immunological significance of low level of infliximab in the absence of anti-infliximab antibodies in patients with IBD

P122 The clinical and immunological significance of low level of infliximab in the absence of anti-infliximab antibodies in patients with IBD B. Ungar1 *, A. Anafy1, M. Yavzori1, O. Picard1, E. Fudim1, U. Kopylov1, Y. Ron2, H. Yanai2, I. Dotan2, Y. Chowers3, R. Eliakim1, S. Ben-Horin1. 1Chaim Sheba Medical Center, Gastroenterology, Ramat Gan, Israel, 2Tel Aviv Sourasky Medical Center, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, IBD Center, Department of Gastroenterology and Liver Diseases, Tel Aviv, Israel, 3Rambam Health Care Campus & Bruce Rappaport School of Medicine, Technion Institute of Technology, Gastroenterology department, Haifa, Israel