Methodology of a new inflammatory arthritis registry: TReasure.

Background/aim: The TReasure registry, created in 2017, is an observational multicenter cohort that includes inflammatory arthritis patients. This article reviews the methodology and objectives of the TReasure registry established to collect data from rheumatoid arthritis (RA) and spondyloarthritis (SpA) patients.

Methodology: Fifteen rheumatology centers in Turkey will contribute data to the TReasure database.