Tools for monitoring remission in rheumatoid arthritis: any will do, let's just pick one and start measuring

Rheumatoid arthritis treatment has seen major changes in the last decade, one of which is the concept of treating to target. Various composite outcome measures have been developed, and the latest is the new American College of Rheumatology/European League Against Rheumatism remission criteria. Zhang and colleagues test the predictive validity of the new criteria in an observational cohort and show that they work as well as other definitions of remission. Our main challenge remains getting rheumatologists to use one of the outcome measures rather than developing new measures that are basically no different from already available measures in predicting functional and radiographic changes, the two most important long-term outcomes of rheumatoid arthritis.