Study of 282 inflammatory arthritis (IA) pts Rx with TNFi, 11 (3/9%) had neutralizing anti-drug Abs (nADAb). nADAb+ was more likely in smokders; such had significantly worse Dz activity, physical function, & inflammatory markers https://t.co/TnEKGpTQ85 https://t.co/I0hv5X35P1