AB0655 IMPACT OF BIOLOGIC THERAPY ON WORK IMPAIRMENT IN REAL LIFE IN AXIAL SPONDYLOARTHRITIS PATIENTS: DATA FROM REGISPONSERBIO
Authors: M. Arévalo, M. Moreno, V. Navarro-Compán, F. U. Pilar, E. De Miguel, T. Clavaguera, L. F. Linares Ferrando, B. Joven-Ibáñez, J. Gratacos-Masmitja, X. Juanola-Roura
Journal: Annals of the Rheumatic Diseases (2020)

Background: Biologic therapy (BT) has demonstrated its effect in improving work impairment in axial Spondyloarthritis (axSpA) patients in clinical trials, however there is few data of these effects in clinical practice. Objectives: -To assess the influence of BT in work status using the WPAI questionnaire in patients with axSpA in real life. -To compare work status between incident and prevalent cases with BT. -To evaluate factors related to changes in work status in these patients. Methods: REGISPONSERBIO is an observational, prospective and multicentric Spanish registry of SpA patients under biologic treatment recruited between September 2013 and December 2014. The study includes demographic, radiologic and disease data from both incident (starting biological therapy at the inclusion) and prevalent (already under biologic therapy at the inclusion) patients. WPAI (Work Productivity and Activity Impairment) questionnaire was used to assess work status (employment, lost hours, absenteeism and presenteeism) in both groups of patients at six months after study inclusion. Patients more than 65 years old who were not working were excluded from the analysis, as no changes in work impairment are expected in these individuals. A descriptive study of work status and related factors was performed using mean and standard deviation as appropriate. Work status was compared between both time-points in incidents and between incidents and prevalents. Uni and multivariate analysis for factors related to baseline work status were assessed, and correlation for change at six months. Results: The study included 75 incident and 134 prevalent axSpA patients. After start of BT, incident patients presented an increase in the number of patients who affirmed to be actively working and an improvement in absenteeism, lost hours and presenteeism, however statistical significance was only reached in the number of hours lost. Comparing incident and prevalent cases, incident patients showed worse data on work status compared to prevalent ones, but only presenteeism reached statistical significance. Factors related to absenteeism and presenteeism at study inclusion were disease activity variables (PGA, BASDAI, ASDAS-CRP), ASQoL and BASFI. Best correlation with improvement in absenteeism at six months was with change in BASDAI (0.84 p 0.07) and age (-0.56 p 0.11), and with improvement in presenteeism were BASFI (0.59 p 0.002), ASQoL (0.57 p 0.002), BASDAI (0.54 p 0.04), PGA (0.51 p 0.01) and ASDAS-CRP(0.51 p 0.01). Conclusion: Biologic therapy is associated to an improvement in work status in axSpA patients. The results suggest that the fast and high improvement in disease activity and disability observed after start of BT is not directly translated to an improvement in work status at short time. Disease activity, disability and quality of life were the main factors influencing both, work status at inclusion and improvement in absenteeism and presenteeism after BT was started. Disclosure of Interests: Marta Arévalo: None declared, Mireia Moreno: None declared, Victoria Navarro-Compán Consultant of: Abbvie, Lilly, Novartis, Pfizer, UCB, Speakers bureau: AbbVie, MSD, Lilly, Novartis, Pfizer, UCB, Font Ugalde Pilar: None declared, Eugenio de Miguel Grant/research support from: Yes (Abbvie, Novartis, Pfizer), Consultant of: Yes (Abbvie, Novartis, Pfizer), Paid instructor for: yes (AbbVie, Novartis, Pfizer, MSD, BMS, UCB, Roche, Grunental, Janssen, Sanofi), Speakers bureau: yes (AbbVie, Novartis, Pfizer, MSD, BMS, UCB, Roche, Grunental, Janssen, Sanofi), Teresa Clavaguera Speakers bureau: novartis, BMS, Faes, Luis F. Linares Ferrando: None declared, Beatriz Joven-Ibáñez Speakers bureau: Abbvie, Celgene, Janssen, Merck Sharp &amp; Dohme, Novartis, Pfizer, Jordi Gratacos-Masmitja Grant/research support from: a grant from Pfizzer to study implementation of multidisciplinary units to manage PSA in SPAIN, Consultant of: Pfizzer, MSD, ABBVIE, Janssen, Amgen, BMS, Novartis, Lilly, Speakers bureau: Pfizzer, MSD, ABBVIE, Janssen, Amgen, BMS, Novartis, Lilly, Xavier Juanola-Roura: None declared