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Ciurea A, Kissling S, Bürki K, Baraliakos X, de Hooge M, Hebeisen M, Papagiannoulis E, Exer P, Bräm R, Nissen MJ, Möller B, Kyburz D, Andor M, Distler O, Scherer A, Micheroli R. Current differentiation between radiographic and non-radiographic axial spondyloarthritis is of limited benefit for prediction of important clinical outcomes: data from a large, prospective, observational cohort. RMD Open 2022; 8:rmdopen-2021-002067. [PMID: 35110365 PMCID: PMC8811599 DOI: 10.1136/rmdopen-2021-002067] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 01/17/2022] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVE To compare disease characteristics and outcomes between patients with axial spondyloarthritis with non-radiographic disease (nr-axSpA), bilateral grade 2 sacroiliitis (r22axSpA) and unilateral/bilateral grade 3-4 sacroiliitis (r3+axSpA) according to the modified New York criteria. METHODS We included patients with axial spondyloarthritis with available pelvic radiographs from the Swiss Clinical Quality Management Cohort. Retention of a first tumour necrosis factor inhibitor (TNFi) was investigated with multiple adjusted Cox proportional hazards models. The proportion of patients reaching 50% reduction in the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI50) at 1 year was assessed with multiple adjusted logistic regression analyses. Spinal radiographic progression, defined as an increase in ≥2 mSASSS units in 2 years, was assessed in generalised estimating equation models. RESULTS From 2080 patients, those with nr-axSpA (n=485) and r22axSpA (n=443) presented with lower C reactive protein levels and less severe clinical spinal involvement compared with patients with r3+axSpA (n=1152). While TNFi retention was similar in r22axSpA and nr-axSpA, the risk of discontinuation was significantly lower in r3+axSpA (HR 0.60, 95% CI 0.44 to 0.82 vs nr-axSpA). BASDAI50 responses at 1 year were comparable in r22axSpA and nr-axSpA, with a better response associated with r3+axSpA (OR 2.05, 95% CI 1.09 to 3.91 vs nr-axSpA). Spinal radiographic progression was similar in r22axSpA and nr-axSpA and significantly higher in r3 +axSpA. CONCLUSION Patients with r22axSpA are comparable to nr-axSpA patients but differ from patients with more severe sacroiliac damage with regard to treatment effectiveness and spinal radiographic progression. Therefore, current differentiation between nr-axSpA and radiographic disease seems of limited use for outcome prediction.
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Affiliation(s)
- Adrian Ciurea
- Department of Rheumatology, Zurich University Hospital, University of Zurich, Zurich, Switzerland
| | | | - Kristina Bürki
- Department of Rheumatology, Zurich University Hospital, University of Zurich, Zurich, Switzerland
| | | | - Manouk de Hooge
- VIB Inflammation Research Center, Ghent University, Ghent, Belgium
| | | | | | | | - René Bräm
- Swiss Ankylosing Spondylitis Association, Zurich, Switzerland
| | - Michael J Nissen
- Division of Rheumatology, Geneva University Hospital, Geneva, Switzerland
| | - Burkhard Möller
- Department of Rheumatology, Inselspital Bern, Bern, Switzerland
| | - Diego Kyburz
- Department of Rheumatology, Basel University Hospital, Basel, Switzerland
| | | | - Oliver Distler
- Department of Rheumatology, Zurich University Hospital, University of Zurich, Zurich, Switzerland
| | - Almut Scherer
- Swiss Clinical Quality Management in Rheumatic Diseases SCQM, Zurich, Switzerland
| | - Raphael Micheroli
- Department of Rheumatology, Zurich University Hospital, University of Zurich, Zurich, Switzerland
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Jibri Z, Gazel U, Solmaz D, Ayan G, Karsh J, Aydin SZ, Sampaio M. Correspondence on 'MRI lesions in the sacroiliac joints of patients with spondyloarthritis: an update of definitions and validation by the ASAS MRI working group'. Ann Rheum Dis 2021; 82:e121. [PMID: 33658237 DOI: 10.1136/annrheumdis-2021-220008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 11/04/2022]
Affiliation(s)
- Zaid Jibri
- Department of Medical Imaging, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Ummugulsum Gazel
- Division of Rheumatology, University of Ottawa, Ottawa, Ontario, Canada
| | - Dilek Solmaz
- Department of Internal Medicine, Division of Rheumatology, Izmir Katip Celebi Universitesi Tip Fakultesi, Izmir, Turkey
| | - Gizem Ayan
- Division of Rheumatology, University of Ottawa, Ottawa, Ontario, Canada.,Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Jacob Karsh
- Division of Rheumatology, University of Ottawa, Ottawa, Ontario, Canada
| | - Sibel Zehra Aydin
- Division of Rheumatology, University of Ottawa, Ottawa, Ontario, Canada.,Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Marcos Sampaio
- Department of Medical Imaging, The Ottawa Hospital, Ottawa, Ontario, Canada
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Abstract
Axial spondyloarthritis (axSpA) is an inflammatory disease of the axial skeleton associated with significant pain and disability. Previously, the diagnosis of ankylosing spondylitis required advanced changes on plain radiographs of the sacroiliac joints. Classification criteria released in 2009, however, identified a subset of patients, under the age of 45, with back pain for more than three months in the absence of radiographic sacroiliitis who were classified as axSpA based on a positive magnetic resonance imaging or HLAB27 positivity and specific clinical features. This subgroup was labeled non-radiographic (nr)-axSpA. These patients, compared with those identified by the older New York criteria, contained a larger percentage of women and demonstrated less structural damage. However, their clinical manifestations and response to biologics were similar to radiographic axSpA. The discovery of the interleukin (IL) IL-23/IL-17 pathway revealed key molecules involved in the pathophysiology of axSpA. This discovery propelled the generation of antibodies directed toward IL-17A, which are highly effective and demonstrate treatment responses in axSpA that are similar to those observed with anti-TNF agents. The finding that agents that block IL-23 were not effective in axSpA came as a surprise and the potential underlying mechanisms underlying this lack of response are discussed. New agents with dual inhibition of the IL-17A and F isoforms and some oral small molecule agents that target the Jak-STAT pathway, have also shown efficacy in axSpA.
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Affiliation(s)
- Christopher Ritchlin
- Allergy, Immunology & Rheumatology Division, University of Rochester Medical Center, Rochester, New York, USA
| | - Iannis E Adamopoulos
- Rheumatology, Allergy & Clinical Immunology Division, University of California, Davis, Shriners Hospital, Sacramento, California, USA
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