104. THE CO-OCCURRENCE OF AXIAL SPONDYLOARTHRITIS AND FIBROMYALGIA: RESULTS FROM A NATIONAL REGISTER

Abstract

Background: Some patients with axial spondyloarthritis (axSpA) are recognized clinically to have co-morbid fibromyalgia (FM). However, there are no trials to inform how patients are best managed when axSpA and FM occur together. This study aims to provide data on the frequency of co-occurrence and, among persons with axSpA, to characterize persons with co-morbid FM to inform future trials.Methods: The British Society for Rheumatology Biologics Register for Ankylosing Spondylitis (BSRBR-AS) has recruited patients with axSpA since December 2012, across 82 centres in Great Britain. All patients recruited are naïve to anti-TNF biologic therapy and are either newly starting such therapy (biologic cohort) or not (non-biologic cohort) and are then followed up for the duration of the study. At recruitment and follow-up, patients complete measures of disease activity and impact, including quality of life, sleep disturbance, fatigue and mood. Clinical information and measurements are recorded. Since September 2015, patients have completed 2011 FM research criteria and, separately, clinicians have confirmed whether they consider the patients to have FM.