Michelena, XabierZhao, Sizheng StevenDubash, SayamDean, Linda EJones, Gareth TMarzo-Ortega, Helena2021-12-072021-12-072021-12-01Michelena, X, Zhao, S S, Dubash, S, Dean, L E, Jones, G T & Marzo-Ortega, H 2021, 'Similar biologic drug response regardless of radiographic status in axial spondyloarthritis : data from the British Society for Rheumatology Biologics Register in Ankylosing Spondylitis registry', Rheumatology, vol. 60, no. 12, pp. 5795-5800. https://doi.org/10.1093/rheumatology/keab0701462-0324ORCID: /0000-0003-0016-7591/work/93483283https://hdl.handle.net/2164/17630Acknowledgements: We acknowledge Prof. Gary J. MacFarlane as chief investigator on the BSRBR-AS study. We are grateful to the staff of the BSRBR-AS register and to the recruiting staff at the clinical centres, details of which are available at www.abdn.ac.uk/bsrbr-as. H.M.O. designed the study proposal. X.M. analysed the data and wrote the manuscript, with significant input from all co-authors. G.T.J. is deputy chief investigator on the BSRBR-AS study and together with L.D. discussed results and provided input into drafts of the manuscript. The study was approved by the National Research Ethics Service Committee North East-County Durham and Tees Valley (reference 11/NE/0374) and informed consent was obtained from all participants. Funding: This work was supported by a research grant from the FOREUM Foundation for Research in Rheumatology. The BSRBR-AS is funded by the British Society for Rheumatology, which received funding for this from Pfizer, AbbVie and UCB. They have no input in determining the topics for analysis or work involved in undertaking it.6468563engankylosing spondylitisepidemiologybiological therapydrug survivalaxial spondyloarthritisR MedicineOtherSupplementary DataRJournal article10.1093/rheumatology/keab0706012