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Blinatumomab is a member of a novel class of T cell-engaging bispecific antibodies, so-called Bispecific T cell Engager (BiTEs). It is directed against the B cell differentiation antigen CD19 and intended for treatment of B cell malignancies. In clinical phase I/II trials, blinatumomab showed remarkable single-agent activity in patients with relapsed and/or refractory (R/R) non-Hodgkin lymphoma and R/R B cell precursor acute lymphoblastic leukemia (B-precursor ALL). Cytokine release syndrome and neurological side effects were dose-limiting. Adverse effects were well manageable and transient in nature. Based on results of an international phase II trial, blinatumomab received FDA approval for the treatment of R/R B-precursor ALL in December 2014. Ongoing and future trials will contribute to further optimization of blinatumomab-based T cell therapy and have to show that integration of blinatumomab in current and innovative treatment protocols improves overall survival and quality of life of patients with B cell malignancies.
Goebeler et al. (Wed,) studied this question.
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