P475 Granulocyte and Monocyte Apheresis (GMA) – Adacolumn® in mild to moderate ulcerative colitis patients with steroid resistance or dependence and azathioprine intolerance or resistance: a prospective multicenter study (preliminary data)

P475 Granulocyte and Monocyte Apheresis (GMA) Adacolumn® in mild to moderate ulcerative colitis patients with steroid resistance or dependence and azathioprine intolerance or resistance: a prospective multicenter study (preliminary data) G. Imperiali1 *, M.M. Terpin2, A. Amato1, A. Bortoli3, G. Meucci4. 1Valduce Hospital, Gastroenterology, Como, Italy, 2Legnano Hospital, Gastroenterology, Legnano, Italy, 3Rho Hospital, Gastroenterology, Rho, Italy, 4S. Giuseppe Hospital, Gastroenterology, Milano, Italy