EULAR Study Group on Registers and Observational Drug Studies REMIT To create a platform for methodological, logistic, and scientific collaboration across European Rheumatology drug registers in order to maximise the potential use of the data collected within each register, to maximise the quality of the scientific outputs within and across registers, and to maximise the exchange of experiences across registers   RECENT ACTIVITIES Completion and publication of a collaborative study on melanomas in relation to biological anti-rheumatic therapies, a joint effort across 11 European biologics registers (1). Completion of a collaborative study on lymphoma characteristics in relation to different RA therapies (2). Organising the EULAR Task Force on RA data harmonisation ((3) and Figure 1). Preparatory work regarding the establishment of a similar type of EULAR activity in the field of GCA. Organising the EULAR RODS meetings (4) (3) The EULAR Task Force on RA data harmonisation (4) The second EULAR RODS meeting 1) Mercer LK, Askling J, Raaschou P, Dixon WG, Dreyer L, Hetland ML, Strangfeld A, Zink A, Mariette X, Finckh A, Canhao H, Iannone F, Zavada J, Morel J, Gottenberg JE, Hyrich KL, Listing J. Risk of invasive melanoma in patients with rheumatoid arthritis treated with biologics: results from a collaborative project of 11 European biologic registers. Ann Rheum Dis. 2017 Feb;76(2):386-391. 2) Louise Mercer 1#, Anne Regierer2#, Xavier Mariette3, William Dixon1, Eva Baecklund4, Karin Hellgren5, Lene Dreyer6, Merete Lund Hetland7, 8, Lene Mellemkjær9, Kimme Hyrich1, 10, Anja Strangfeld2, Angela Zink2,11, Helena Canhao12, M Victoria Hernández13 , Florence Tubach14, Jacques-Eric Gottenberg15, Jacques Morel16, Jakub Zavada17, Florenzo Iannone18, Johan Askling5, Joachim Listing2 The spectrum of lymphomas across different drug treatment groups in rheumatoid arthritis: a European registries collaborative project, submitted 3) Radner H1; Chatzidionysiou K2, Nikiphorou E3, Gossec L4, Hyrich K5, Zabalan C6, van Eijk-Hustings Y7, Williamson P.R8, Balanescu A9, Burmester G.R10, Carmona L11, Dougados M12, Finckh A13, Haugeberg G14, Hetland M.L15, Oliver S16, Porter D17, Raza K18, Ryan P19, Santos M.J20, van der Helm-van Mil A21, van Riel P22, von Krause G23, Zavada J24, Dixon WG25, Askling J2, manuscript