CD3 Ligand

Eluvixtamab (AMG-330) is a bispecific T-cell engager. Eluvixtamab binds to CD33 and CD3 on T cells, thereby promoting T cell-mediated cytotoxicity against CD33+ cells. Eluvixtamab can be used in the research of tumors such as relapsed/refractory acute myeloid leukemia.

Etevritamab (AMG-596) is a bispecific T-cell engager that targets EGFRvIII and CD3. Etevritamab simultaneously binds CD3 on T cells and EGFRvIII on glioblastoma multiforme cells, thereby forming a bridge structure. Etevritamab triggers T-cell activation, proliferation, secretion of cytotoxic substances, and tumor cell lysis. Etevritamab extends overall survival and induces tumor regression in mouse models of glioblastoma multiforme. Etevritamab can be used for research related to glioblastoma.

Besufetamig is a bispecific antibody targeting programmed cell death 1 (PD-1) and CD3ε chain. Besufetamig modulates the activity of immune cells, exerting immunosuppressive and antineoplastic activities. Besufetamig is promising for research of cancers.

Amtabafusp alfa (GS-8588) is an envelope-targeting bispecific T-cell engager for HIV treatment. Amtabafusp alfa redirects effector T cells by binding to CD3 via a humanized anti-CD3 Fab domain and to HIV envelope proteins via an engineered CD4 domain 1 variant. Amtabafusp alfa exhibits potent, broad-spectrum activity against a variety of HIV isolates and specifically kills HIV-infected cells. Amtabafusp alfa can be used for research on HIV infection.

SAR-442257 is a trispecific T-cell engager and monoclonal antibody that binds to CD38, CD3 and CD28. SAR-442257 can target and bind to CD3 and CD28 on T cells, as well as CD38 expressed on tumor cells. SAR-442257 mediates T-cell activation, enhances T-cell activity, induces T-cell degranulation, and drives cytotoxicity against multiple myeloma cells. SAR-442257 functions via CD38 expression, and its in vitro activity correlates with CD38 expression on the surface of multiple myeloma cells. SAR-442257 can be used in studies related to multiple myeloma and relapsed/refractory multiple myeloma.

IOR-T3 is a monoclonal antibody targeting CD3, with biological activities related to T cell activation regulation. IOR-T3 uses its variable region to competitively engage surface CD3 on lymphocytes and trigger robust T cell proliferation and activation. IOR-T3 and its derivatives can be used in studies related to acute transplant rejection.