Seoul – September 12, 2026 -- SystImmune, Inc. announced that new global Phase 1 data support 2.5 mg/kg D1D8 Q3W as the recommended Phase 3 dose for iza-bren (izalontamab brengitecan), a bispecific EGFRxHER3 antibody drug conjugate, in previously treated EGFR-mutated metastatic non-small cell lung cancer (NSCLC).