Updated Results of Pivotal Phase 2 Trials of Olverembatinib (HQP1351) in Patients (Pts) with Tyrosine Kinase Inhibitor (TKI)-Resistant Chronic- and Accelerated-Phase Chronic Myeloid Leukemia (CML-CP and CML-AP) with T315I Mutation

Background: Management of CML with TKIs is constrained by treatment resistance, which portends a poor prognosis particularly in pts failing 2 nd-generation TKIs. Cells with BCR-ABL1 T315I mutations are insensitive to 1 st- and 2 nd -generation TKIs, and compound BCR-ABL1 mutations complicate management with all TKIs (including 3 rd-generation ponatinib). Olverembatinib is a novel, potent, 3 rd-generation, orally active BCR-ABL1 TKI with promising activity against CML , largely irrespective of genotype and has a preliminary favorable safety profile.