POS0599 DISEASE ACTIVITY IN PATIENTS WITH RA BY SEROSTATUS AND TREATMENT LINE, FOLLOWING TREATMENT WITH ABATACEPT: RESULTS FROM AN INTERNATIONAL OBSERVATIONAL STUDY

Background: RF and anti-citrullinated protein antibodies (ACPAs) are associated with a severe and aggressive disease course in patients with RA. 1 Abatacept is a selective co-stimulation modulator for the treatment of RA. 2 ASCORE ( A batacept S ub C utane O us in R outine Clinical Practic E ; NCT02090556 ) was a 2-year, observational, prospective, multicentre study of SC abatacept for the treatment of RA in routine clinical practice. 3...