Efficacy and safety of bispecific T-cell engager blinatumomab and the potential to improve leukemia-free survival in B-cell acute lymphoblastic leukemia

Introduction: Immunotherapy is a promising modality of treatment of neoplastic diseases, including acute lymphoblastic leukemia (ALL). The CD19/CD3-bispecific T cell–engaging (BiTE®) monoclonal antibody blinatumomab can transiently bind cytotoxic T cells to CD19+ target B cells of ALL inducing their serial lysis.Areas covered: This review focuses on the efficacy and safety of blinatumomab used for the treatment of relapsed/refractory (R/R) ALL and minimal residual disease (MRD)-positive B-cell precursor (BCP) ALL in adults and children, as well as the future prospects of this drug in the treatment of ALL.Expert commentary: Blinatumomab has demonstrated encouraging response rates in MRD-positive and R/R in adults with Philadelphia chromosome-positive and -negative ALL, as well as in children with R/R ALL. Blinatumomab has a favorable safety profile, although reversible CNS events and cytokine release syndrome can occur. Ongoing trials in ALL incorporate blinatumomab in the first line therapy of BCP...