Objective To evaluate the cost-effectiveness of blinatumomab (Blincyto) versus standard of care (SOC) chemotherapy in adults with relapsed or refractory (R/R) Philadelphia-chromosome-negative (Ph-) B-precursor acute lymphoblastic leukemia (ALL) based on the results of the phase 3 TOWER study from a US healthcare payer perspective. Methods The Blincyto Global Economic Model (B-GEM), a partitioned survival model,