Vasculitis & polymyalgia rheumatica

The Effect of Benralizumab and Mepolizumab on Use of Oral Glucocorticoids in Patients With Eosinophilic Granulomatosis With Polyangiitis

Arthritis RheumatolPublished Post hoc analysis of the MANDARA randomised controlled trial

Authors' conclusion

Targeting the interleukin-5 receptor with benralizumab or circulating interleukin-5 with mepolizumab are effective OGC-sparing strategies in patients with EGPA.

Study context

Population
Adults with eosinophilic granulomatosis with polyangiitis (EGPA) requiring ≥7.5 mg/day OGC with or without immunosuppressive therapy
Participants
70 vs 70
Comparison
Benralizumab 30 mg vs mepolizumab 300 mg SC every 4 weeks for 52 weeks
  • Benralizumabn = 70
  • Mepolizumabn = 70reference
Methodological detailsphase 3, Investigators tapered oral glucocorticoids (OGCs) for patients with stable EGPA based on clinical judgment
  • Phase 3
  • Investigators tapered OGCs for patients with stable EGPA based on clinical judgment

Primary result

As reported in the abstract

OGC use: cumulative dose and median dose · weeks 49 to 52

Further findings

Events

OutcomeBenralizumabMepolizumabHR (95% CI)P value
Complete OGC withdrawal (time to first)33201.84 (1.06–3.27)unstratified log-rank test P = 0.0291
Sustained complete OGC withdrawal · by week 40, maintained through week 521772.97 (1.26–7.77)unstratified log-rank test P = 0.0268

Time to first or sustained OGC reduction to ≤4 mg/day or by ≥50%; accrued OGC-free duration

Similar between groups

Complete OGC withdrawal across subgroups (incl. ANCA status, immunosuppressive use)

Similar across patient subgroups in both groups

Original publication

The Effect of Benralizumab and Mepolizumab on Use of Oral Glucocorticoids in Patients With Eosinophilic Granulomatosis With Polyangiitis. Arthritis Rheumatol. Published 30 November 2025. doi:10.1002/art.43398

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