Sutro Biopharma has initiated REFRαME-P1, a registration-enabling trial of luveltamab tazevibulin (luvelta) for pediatric patients with CBF/GLIS AML. The study follows encouraging compassionate use data presented in December 2023, showing 42% complete remission in patients with ≥5% blasts. CBF/GLIS AML is a rare, aggressive leukemia affecting infants and young children, with an average onset age of 18 months and over 80% chemotherapy resistance rate. The global trial will evaluate luvelta's efficacy and safety in children under 12 years with CBF/GLIS AML, with most sites planned to open by year-end.