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Navarro-Compán, Victoria, Kiltz, Uta, Mease, Philip J., Dubreuil, Maureen, Gaffney, Karl 
ORCID: https://orcid.org/0000-0002-7863-9176, Deodhar, Atul, de la Loge, Christine, Prajapati, Chetan, Kavanagh, Sarah and Marzo-Ortega, Helena
(2026)
Bimekizumab treatment for sustained improvements in patient symptoms and health-related quality of life to 3 years in axial spondyloarthritis: results from the BE MOBILE studies and their open-label extension.
RMD Open, 12 (2).
ISSN 2056-5933
Abstract
Objective: To assess the sustained, long-term efficacy of bimekizumab in improving patient symptoms and health-related quality of life (HRQoL) in axial spondyloarthritis (axSpA) to 3 years. Methods: Both BE MOBILE 1 (non-radiographic axSpA) and 2 (radiographic axSpA) comprised a 16-week double-blind, placebo-controlled treatment period and a 36-week maintenance period. From week 16, all patients received subcutaneous bimekizumab 160 mg every 4 weeks. At week 52, eligible patients could enter the open-label extension (OLE), BE MOVING and continue bimekizumab treatment. Here, we report pooled results for changes in spinal pain, morning stiffness (mean of Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) Q5 and Q6), physical function (Bath Ankylosing Spondylitis Functional Index (BASFI)), fatigue (BASDAI Q1 and Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue), sleep quality (Medical Outcomes Study Sleep (MOS-Sleep-R) Index II) and HRQoL (36-Item Short Form Questionnaire (SF-36) Physical Component Summary (PCS)/Mental Component Summary; Ankylosing Spondylitis Quality of Life (ASQoL)) to 3 years in the overall study population; for spinal pain and physical function, patient-level data are also reported. Results: Of the 494/586 (84.3%) randomised patients who entered the OLE, 425/494 (86.0%) completed week 164. At week 164, patients reported mean improvements from baseline in total (–4.3) and nocturnal (–4.3) spinal pain, morning stiffness (–4.3), physical function (BASFI: –2.9), fatigue (BASDAI Q1: –3.5, FACIT-Fatigue: +9.7), sleep (MOS-Sleep-R Index II: +10.8) and HRQoL (SF-36 PCS: +12.3; ASQoL: –5.6). Rapid and sustained patient-level improvements to week 164 in spinal pain and physical function levels were observed. Conclusions: Bimekizumab treatment led to rapid and sustained improvements in key patient symptoms and HRQoL to 3 years, emphasising its long-term value in controlling symptoms which profoundly affect patients’ experience and daily lives. Trial registration numbers: BE MOBILE 1 (NCT03928704), BE MOBILE 2 (NCT03928743) and BE MOVING (NCT04436640).
| Item Type: | Article |
|---|---|
| Additional Information: | Publisher Copyright: © Author(s) (or their employer(s)) 2026. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ Group. This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: https://creativecommons.org/licenses/by-nc/4.0/. |
| Uncontrolled Keywords: | axial spondyloarthritis,fatigue,health-related quality of life,pain,patient reported outcome measures,rheumatology,immunology and allergy,immunology ,/dk/atira/pure/subjectarea/asjc/2700/2745 |
| Faculty \ School: | Faculty of Medicine and Health Sciences > Norwich Medical School |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 11 Jun 2026 13:35 |
| Last Modified: | 18 Jun 2026 21:00 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/103376 |
| DOI: | 10.1136/rmdopen-2025-006670 |
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