Study of IV CTX (n 13) vs mepolizumab (n 7)(MPZ; IL-5 inhib) in severe eosinophilic granulomatosis polyangiitis. BVAS & EOS# equal at mo 1 & 6, but MPZ had better retention(61 vs 5%) & less AEs (29% vs 54%) https://t.co/YqfOu0X3jY https://t.co/fPBzogQFal