“…Detectable ATI is associated with a reduced duration of clinical response and an increased risk of infusion reactions 8, 10, 13, 16, 17. ATI that bind and inactivate infliximab compound may decrease the biologically active infliximab level10, 18 and have been associated with low detectable trough serum levels of infliximab (i.e., measured before the next infusion) in IBD patients 8, 16, 19–21…”