Single center study of 320 Difficult to Rx RA (D2TRA) pts, found 76 EULAR-D2TRA pts (24%). D2TRA more likely to be lower socio-economic, RF+, have ILD, higher DAS28-CRP and were more likely to respond to rituximab and JAK inhibitors https://t.co/aEvP6WDvQu https://t.co/FQJvo81FbM