P559 Efficacy of Ustekinumab in the treatment of patients with Crohn’s disease with failure to previous conventional or biologic therapy: an observational real-life study

Background Ustekinumab (UST), a human anti-IL12/23p40 monoclonal antibody, was approved by FDA and EMA for the treatment of moderate to severe Crohn’s disease (CD). Whether UST is effective in inducing deep remission, including mucosal healing and transmural healing, in patients with CD in a real life setting is not completely clear. Methods The study was performed on 92 subjects (47 males; 45 females; mean age: 42 (17–78) from six medical...