title: A registry of ankylosing spondylitis registries and prospects for global interfacing.
abstract: OBJECTIVE
  To review the optimal criteria and conditions for establishing a clinical registry, as well as detailing their application in a number of ankylosing spondylitis (AS) and axial spondyloarthritis (axSpA) Registries already in existence.
  
  
  RESULTS
  Recent genetic studies and studies of long-term treatment efficacy and side-effects have underscored the need for large numbers of patients, much larger than would be possible from a single center or consortium. An optimal Registry should have its aims established upfront, with appropriate governance and oversight, and inclusion and exclusion criteria for participating collaborators and subject defined. Collaborators contributing subjects to a Registry should use validated instruments for which they have been previously trained. The numerous cross-sectional and longitudinal Registries on AS and axSpA have been recently established that differ widely depending on the referral and selection issues.
  
  
  CONCLUSIONS
  The challenge of large-scale examinations of genetics, comorbidities, medication usage, and side-effects in spondyloarthritis underscores the need for combining data from well characterized registries of AS patients which require careful planning. There are currently many such registries available internationally, offering promise for collaborations and data pooling that can answer some of the pressing questions facing rheumatology clinicians and researchers.
authors: Division of Rheumatology, The University of Texas Health Science Center at Houston, Houston, Texas 77030, USA. john.d.reveille@uth.tmc.edu
authors: John D
authors: JD
authors: Reveille
mesh_terms: D006801:Humans; D007391:International Cooperation; D015995:Prevalence; D012042:Registries; D013167:Spondylitis, Ankylosing / Q000175:diagnosis / Q000453:epidemiology* / Q000628:therapy; D016896:Treatment Outcome
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