Spondyloarthritis & psoriatic arthritis

Effect of Bimekizumab Treatment on Health Status, Work Productivity, and Productivity Costs Through 3 Years in Axial Spondyloarthritis and Psoriatic Arthritis

J RheumatolPublished Post hoc analysis of phase III randomised trials and their open-label extensions

Authors' conclusion

Bimekizumab demonstrated sustained improvements in health status and work productivity to year 3 across axSpA and PsA.

Study context

Population
Patients with axial spondyloarthritis (axSpA) or psoriatic arthritis (PsA) who completed phase III trials of SC bimekizumab 160 mg every 4 weeks and entered open-label extensionsobserved cases
Participants
586 vs 1,112
Comparison
Bimekizumab 160 mg every 4 weeks, in patients originally randomised to placebo or bimekizumab, through year 3
  • axSpAn = 586
  • PsAn = 1,112
Methodological detailsopen-label extension, observed cases
  • Open-label extension
  • Observed cases

Primary result

As reported in the abstract

Change in EQ VAS (0-100), mean improvement from baseline · year 3

axSpA

20.2-21.3

mean · points

PsA

17.1-17.3

mean · points

Further findings

OutcomeaxSpAPsA
Clinically meaningful improvement in work impairment · year 374.2-81.1%71.2- 71.3%
Acceptable work state (WPAI-SHP presenteeism < 40%) · year 383.7-84.2%84.1-87.2%
Annualized productivity cost savings, US (US dollars) · year 3$22,012.14-22,549.32 US dollars$13,327.60-16,428.25 US dollars

Annualized productivity cost savings, US (US dollars) · year 3

Similar trends were observed in Europe and Japan

Original publication

Effect of Bimekizumab Treatment on Health Status, Work Productivity, and Productivity Costs Through 3 Years in Axial Spondyloarthritis and Psoriatic Arthritis. J Rheumatol. Published 1 July 2026. doi:10.3899/jrheum.2026-0104

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