British Society for Rheumatology Biologics Register in Ankylosing Spondylitis - (BSRBR-AS)

British Society for Rheumatology Biologics Register in Ankylosing Spondylitis - (BSRBR-AS)

Duration: Data collection (2012 - 2020) (analysis ongoing)
Funder: British Society for Rheumatology
Chief investigator: Professor Gary Macfarlane
Deputy chief investigator: Professor Gareth Jones


The British Society for Rheumatology Biologics Register in Ankylosing Spondylitis (BSRBR-AS) is a study funded by the British Society for Rheumatology. We have tracked the progress of people with axial spondyloarthritis (axSpA), who were taking biologic therapy, and people who have never taken such therapy.

People with axSpA, across Scotland, England and Wales, were recruited through their local NHS rheumatology centres. Recruitment to the study started on 03 December 2012 and ended on 31 December 2017. Planned follow-up data collection stopped on the 30 June 2018, although we had one further survey during the COVID19 pandemic in mid-2020. Analysis of the information collected will continue until 31 December 2024.

We asked participants to fill in questionnaires at regular intervals during their study involvement (for a maximum of five and half years), depending on the medication they were prescribed. We also asked participants to keep a study diary with changes to their medications, note of hospital admissions and referrals. The questionnaires and diary cards were sent by post to participants' homes, together with a pre-paid return envelope. We also collected data at participants' routine visits to rheumatology departments plus, if participants had agreed to data linkage, some health information that is held in national NHS databases.

If you have been a BSRBR-AS study participant and want to know more about data linkage and data privacy see the 'Data linkage and privacy' section below

Further information