Date: Sunday, November 8, 2015
Session Type: ACR Poster Session A
Session Time: 9:00AM-11:00AM
Axial spondyloarthritis (axSpA) includes ankylosing spondylitis (AS) and non-radiographic axSpA (nr-axSpA).1 AS significantly affects patient (pt) workplace productivity in both performance and disease-related absenteeism.2 The impact of nr-axSpA on productivity is less well characterized. Few studies investigate associations between improvements in workplace and household productivity and symptom relief with available therapies in axSpA. Here we evaluate the association between improvements in clinical and pt-reported outcomes (PROs) and improvements in productivity in the workplace and at home in axSpA pts treated with certolizumab pegol (CZP), including AS and nr-axSpA pts.
Associations between clinical outcomes or PROs and work and household productivity were made using Week (Wk) 24 data from the double-blind and placebo-controlled period of RAPID-axSpA (NCT01087762),3 for pts originally randomized to CZP. Clinical outcomes included achievement of ASAS40 and ASDAS Major Improvement (MI). PROs included achievement of MCID for BASFI (≥1 decrease from baseline [BL]), total back pain (≥1 decrease from BL) and ASQoL (≥2 decrease from BL). Responders and non-responders at Wk24 were compared in terms of change from BL (CFB) in workplace and household productivity, as assessed using the validated arthritis-specific Work Productivity Survey.4 Groups were compared using a non-parametric bootstrap-t method. Missing data were imputed using LOCF for WPS outcomes and NRI for clinical outcomes and PROs.
218 CZP pts entering RAPID-axSpA were included in Wk24 analyses (121 AS; 97 nr-axSpA). Pts employed at Wk24: 73.9% axSpA; 73.6% AS; 74.2% nr-axSpA. Overall, pts achieving a clinical or PRO response at Wk24 reported greater improvements in workplace and household productivity than non-responders (Table). Improvements in ASQoL and clinically meaningful reductions in functional limitation and pain were associated with improved workplace absenteeism and presenteeism. Similar results were seen in both AS and nr-axSpA pts. Numerically greater CFB was seen in nr-axSpA pts, potentially due to a slightly higher BL productivity burden in nr-axSpA vs AS.5 Responders also reported greater improvements in participation in family, social and leisure activities (not shown). Results should be interpreted with caution, due to differences in pt number between groups and because analyses were not adjusted for differences in BL productivity.
Clinical responses and clinically meaningful improvements in PROs are associated with improved workplace and household productivity in axSpA pts treated with CZP, including both AS and nr-axSpA pts.
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To cite this abstract in AMA style:van der Heijde D, Braun J, Rudwaleit M, Purcaru O, Kavanaugh A. Clinical Responses and Improvements in Patient-Reported Outcomes Are Associated with Increased Productivity in the Workplace and at Home in Axial Spondyloarthritis Patients Treated with Certolizumab Pegol [abstract]. Arthritis Rheumatol. 2015; 67 (suppl 10). https://acrabstracts.org/abstract/clinical-responses-and-improvements-in-patient-reported-outcomes-are-associated-with-increased-productivity-in-the-workplace-and-at-home-in-axial-spondyloarthritis-patients-treated-with-certolizumab-p/. Accessed July 31, 2021.
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ACR Meeting Abstracts - https://acrabstracts.org/abstract/clinical-responses-and-improvements-in-patient-reported-outcomes-are-associated-with-increased-productivity-in-the-workplace-and-at-home-in-axial-spondyloarthritis-patients-treated-with-certolizumab-p/