The study will also monitor a range of clinical effectiveness, patient reported outcomes (PROs), health economic, and safety outcomes, including infections, malignancies and cardiovascular events, among other safety outcomes. Standard components of the European League Against Rheumatism (EULAR) (Disease Activity Score -28 joint count) and American College of Rheumatology (ACR) response criteria, including tender and swollen 28 joint counts, physician and patient global assessment, morning stiffness and pain will be collected at all study visits to enable comparisons of composite disease activity scores (e.g. remission) and response criteria. disease activity score (DAS)-28 erythrocyte sedimentation rates (ESR) will be calculated where possible, as Japanese physicians routinely collect ESR on a more regular basis than U.S. physicians. Composite indices of disease activity, clinical disease activity index (CDAI), DAS, and ACR scores may be calculated from the elements in the Corrona Questionnaire for publication. In addition, PROs will be collected via instruments including the EuroQol (EQ)-5D, health assessment questionnaire (HAQ)-DI, and work productivity activity impairment instrument (WPAI) questionnaire.