We assessed a German claims database of in total 62,204 RA-patients of which 7,146 patients with a MTX therapy were observed. Non persistence was defined as a medication gap of more than 12 or 24 weeks and non adherence was defined as a medication possession ratio (MPR) of <80%. Our analyses showed that about 20% of patients discontinued therapy after 12 months and an additional 20% of patients can be classified as being non-adherent. If you want to read more about this topic or you are interested in doing a claims analyses on RA patients, please contact us or meet us at EULAR in Rome from 10 June to 13 June 2015.