Vasculitis & polymyalgia rheumatica

Upadacitinib for refractory Behcet’s syndrome: a multi-centre, single-arm trial

Arthritis Res TherPublished Single-arm trial

Authors' conclusion

Upadacitinib represents a potential therapeutic option for patients with refractory BS.

Study context

Population
Patients with BD refractory to at least two immunosuppressive agents or one targeted therapy for at least 6 months16 male
Participants
27 patients
Outcome
Overall response rate (CR plus PR)
Follow-up
24 weeks
Methodological detailsmulticentre, Conducted from February 2023 to August 2025
  • Multicentre
  • Conducted from February 2023 to August 2025

Main finding

As reported in the abstract

ORR (CR plus PR)

Overall response rate (ORR) at 24 weeks

85.2%

23/27

CRs

16

PRs

7

Further findings

Median BDCAF scores, C-reactive protein (CRP), erythrocyte sedimentation rate (ESR) and GC dosage · week 24

Significant reductions by week 24

Median CRP and ESR among the 23 patients in remission at week 24 · up to 48 weeks

Significantly lower at 48 weeks than at 24 weeks

CR by system involvement · 24 weeks

Cardiovascular involvement
3 (100.0%)
Ocular symptoms
5 (83.3%)
Gastrointestinal involvement
10 (76.9%)
Mucocutaneous symptoms
16 (59.3%)
Articular involvement
1 (16.7%)

Relapse during follow-up

Patients with relapse
3

Safety

No serious adverse events reported

Original publication

Upadacitinib for refractory Behcet’s syndrome: a multi-centre, single-arm trial. Arthritis Res Ther. Published 3 March 2026. doi:10.1186/s13075-026-03778-x

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