#EULAR2025 Abstr#OP0002 Promising new mode of action therapy for #myositis. Phase 2 RCT of efgartigimod (FcRn-i; coformulated with recombinant PH20) showed improvement in TIS & other key endpoints vs PBO at Wk24. Injection reaction common (23%). Will proceed to Phase 3 @RheumNow https://t.co/SuMolfcDkS