AstraZeneca's surovatamig demonstrated promising efficacy in the Phase I/II SYRUS trial, achieving complete remission rates of 46%, 58%, and 83% at dose levels 1, 2, and 3 respectively in patients with relapsed/refractory B-cell acute lymphoblastic leukemia.
The next-generation CD19xCD3 bispecific T-cell engager showed a manageable safety profile with cytokine release syndrome occurring in 31% of patients at dose level 1, and no patients discontinued treatment due to drug-related adverse events.
Surovatamig's Fc-engineered design enables intermittent dosing and controlled T-cell activation, offering a potentially more convenient alternative to Blincyto's continuous infusion requirement.
Despite promising results, surovatamig faces significant market competition with projected global sales of $138 million by 2031 compared to Blincyto's $1.7 billion, though Blincyto's patent expiry may create opportunities.