Vasculitis & polymyalgia rheumatica

Benralizumab versus Mepolizumab for Eosinophilic Granulomatosis with Polyangiitis

N Engl J MedPublished Randomised controlled trial

Primary result · Remission at weeks 36 and 48 (adjusted %)Result — go to the resultDifference 3 percentage points 95% CI −13 to 18

Authors' conclusion

Benralizumab was noninferior to mepolizumab for the induction of remission in patients with relapsing or refractory EGPA.

Study context

Population
Adults with relapsing or refractory eosinophilic granulomatosis with polyangiitis (EGPA) receiving standard care
Participants
140 adults
Comparison
Benralizumab 30 mg vs mepolizumab 300 mg SC every 4 weeks for 52 weeks
  • Benralizumabn = 70
  • Mepolizumabn = 70reference
Primary endpoint
Remission at weeks 36 and 48
Follow-up
Weeks 36 and 48
Methodological detailsmulticentre, double-blind, phase 3, active-controlled, non-inferiority
  • Multicentre
  • Double-blind
  • Phase 3
  • Active-controlled
  • Non-inferiority

Primary result

Remission at weeks 36 and 48 (adjusted %)

Difference

3 percentage points

95% CI −13 to 18

P = 0.73 for superiority

By group

Benralizumabvs Mepolizumab
difference 3 percentage points (95% CI −13 to 18); P = 0.73 for superiority

As reported in the abstract

Secondary outcomes

Complete withdrawal of oral GC · weeks 48 through 52

Blood eosinophil count, baseline

Blood eosinophil count, week 52

Accrued duration of remission and time to first relapse

Similar in the two groups

Safety

Adverse events

Serious adverse events

Original publication

Benralizumab versus Mepolizumab for Eosinophilic Granulomatosis with Polyangiitis. N Engl J Med. Published 23 February 2024. doi:10.1056/nejmoa2311155

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