Elranatamab (Elrexfio)

概览

Elranatamab is a bispecific antibody used to treat adults with relapsed or refractory multiple myeloma.

作用机制

BCMA is a B cell maturation antigen that binds several ligands to activate various survival signalling pathways, including NF-kappa B, STAT3, ERK1/2, and AKT/PI3K signalling pathways. It is often overexpressed in malignant plasma B cells, including multiple myeloma cells, making it a promising therapeutic target for T-cell engaging antibodies. Elranatamab is a bispecific B-cell maturation antigen (BCMA)-directed T-cell engaging antibody. It binds BCMA on plasma cells, plasmablasts, and multiple myeloma cells and CD3 on T-cells leading to cytolysis of the BCMA-expressing cells. Elranatamab activated T-cells, caused pro-inflammatory cytokine release, and resulted in multiple myeloma cell lysis.

适应症

Elranatamab is indicated for the treatment of adult patients with relapsed or refractory multiple myeloma who have received at least four prior lines of therapy, including a proteasome inhibitor, an immunomodulatory agent, and an anti-CD38 monoclonal antibody. This indication is approved under accelerated approval based on response rate and durability of response. Continued approval for this indication may be contingent upon verification of clinical benefit in a confirmatory trial(s).

• Refractory Multiple Myeloma
• Relapsed Multiple Myeloma