T cell engager (TCE)

Blinatumomab (Anatumomab) is a bispecific monoclonal antibody with two binding sites, one for CD3E on T cells and one for CD19 on B cells. Blinatumomab can be used in research for acute lymphoblastic leukemia.

Tarlatamab (AMG-757) is a bispecific T-cell engager (BiTE) antibody targeting delta-like ligand 3 (DLL3). DLL3 is a target that is selectively expressed in small-cell lung cancer (SCLC) tumors, but with minimal normal tissue expression. Tarlatamab has the K_Ds of 0.64 nM and 0.50 nM for human and nonhuman primate (NHP) DLL3, respectively. Tarlatamab has the K_Ds of 14.9 nM and 12 nM for human and NHP CD3, respectively. Tarlatamab is a first-in-class HLE BiTE immuno-oncology therapy targeting DLL3 and has the potential for SCLC research.

Teclistamab is a human bispecific antibody to BCMA and CD3 that recognizes BCMA on target cells and CD3 on T cells and induces T cell-mediated cytotoxicity leading to T cell activation and subsequent target cell lysis. Teclistamab can be used in studies of diseases related to multiple myeloma (MM).

Glofitamab (RO7082859) is a T-cell-engaging bispecific antibody possessing a novel 2:1 structure with bivalency for CD20 on B cells and monovalency for CD3 on T cells. Glofitamab leads to T-cell activation, proliferation, and tumor cell killing upon binding to CD20 on malignant cells. Glofitamab induces durable complete remissions in relapsed or refractory B-Cell non-Hodgkin lymphoma (B-NHL).

Mosunetuzumab (BTCT-4465A) is a full-length, fully humanized immunoglobulin G1 (IgG1) T-cell-dependent bispecific (TDB) antibody targeting CD20 (B cells) and CD3 (T cells). Mosunetuzumab redirects T cells to engage and eliminate malignant B cells and can be used for the research of relapsed or refractory (R/R) B-cell non-Hodgkin lymphomas (B-NHLs). The Fc region of Mosunetuzumab incorporates a "knob-into-hole" structural modification and an N297G point mutation to achieve heterodimerization and eliminate Fc glycosylation, thereby effectively silencing antibody effector functions.

Epcoritamab (GEN3013) is an bispecific IgG1 antibody redirecting T-cells toward CD3×CD20⁺ tumor cells. Epcoritamab induces potent T-cell-mediated cytotoxicity towards B-cell NHL cell lines.

Solitomab (AMG 110) is a bispecific anti-CD3 and anti-epithelial-cell-adhesion-molecule (EpCAM) antibody. Solitomab can be used for the research of primary uterine and ovarian carcinosarcoma cancer.

Catumaxomab, a trifunctional IgG2 antibody, is composed of mouse and rat heavy and light chains and binds to human EpCAM and human CD 3 receptors. The Fc region of Catumaxomab region has binding affinity for FcγR1 (CD 64), FcγRIIA (CD 32a), and FcγRIII (CD 16). Catumaxomab can be used for anti-tumor research, especially epithelial cancers.

Talquetamab (JNJ-64407564) is a humanized bispecific antibody that binds to GPRC5D (member of G protein-coupled receptor family C5 group D) and CD3 to induce T cell-mediated killing of GPRC5D-expressing MM cells through T cell recruitment and activation. Talquetamab (JNJ-64407564) has antitumor activity.

Xaluritamig (AMG-509) is a bispecific T cell engager and cytolytic agent with a K_d of 27.6 nM for human CD3ε. Xaluritamig binds to CD3ε via an anti-CD3 single-chain variable fragment (scFv) domain, and to STEAP1 via a bispecific anti-STEAP1 antigen-binding fragment (Fab) domain, thereby recruiting and activating T cells and forming a bridge between T cells and STEAP1-expressing cancer cells. Xaluritamig induces T cell-mediated redirected cytotoxicity, tumor cell lysis, cytokine release, CD8⁺ T cell activation and expansion, as well as tumor stasis or regression. Xaluritamig contains an Fc domain with no effector function, which prolongs serum half-life, exhibits only minimal activity against cells with low STEAP1 expression and normal cells, and shows extremely low target-related off-tumor toxicity in cynomolgus monkeys. Xaluritamig is used in STEAP1×CD3 XmAb 2+1 immunotherapy and in research on metastatic castration-resistant prostate cancer and Ewing sarcoma.

Pasritamig (JNJ-78278343; KLCB-245) is a bispecific T-cell engager (BiTE) that targets the complex of human kallikrein KLK2 and CD3 receptor. Pasritamig redirects the cytotoxicity of T cells to KLK2-expressing tumor cells and induces T cell-mediated lysis of KLK2-expressing prostate cancer cells. Administered via subcutaneous injection, subcutaneous infusion or intravenous infusion, Pasritamig exhibits antitumor activity against metastatic castration-resistant prostate cancer. Pasritamig has a safety profile with an extremely low incidence of cytokine release syndrome and can be safely administered in an outpatient setting. Pasritamig is applicable to the research of metastatic castration-resistant prostate cancer.

Elranatamab (PF-06863135) is an anti-CD3E/TNFRSF17 human IgG2κ monoclonal antibody. Recommend Isotype Controls: Human IgG2 kappa, Isotype Control (HY-P99002).

Surovatamig (AZD0486; TNB-486) is a fully human anti-CD19/CD3 IgG4 bispecific antibody. Surovatamig triggers T cell activation, releases cytotoxic granules, and induces T cell-dependent cellular cytotoxicity and tumor cell lysis. Surovatamig can reduces release of pro-inflammatory cytokines including IL-2, IFNγ, TNF. Surovatamig can be used for the research of cancer, such as B cell non-Hodgkin lymphoma.

Cevostamab (BFCR4350A; RG6160; RO7187797) is a humanized IgG1-based BsAb that targets membrane-proximal extracellular domain of FcRH5 on multiple myeloma (MM) cells as well as CD3 on T cells. Moreover, Cevostamab facilitates efficient synapse formation, improves killing activity of T cells against MM tumor cells.

Cibisatamab, a T cell bispecific antibody, binds Carcino-Embryonic Antigen (CEA) on cancer cells and CD3 on T cells. Cibisatamab triggers T cell killing of cancer cell lines expressing moderate to high levels of CEA at the cell surface. Cibisatamab can be used for colorectal cancer research.

Tebentafusp (IMCgp100) is a bispecific fusion protein to target gp100 peptide-HLA-A*02:01 (a melanoma-associated antigen). Tebentafusp guides T cells to kill gp100-expressing tumor cells via a high affinity T-cell receptor (TCR) binding domain and an anti-CD3 T-cell engaging domain. Tebentafusp leads to inflammatory cytokines and cytolytic proteins production, resulting in the direct lysis of tumour cells.

Linvoseltamab (REGN5458) is a bispecific T-cell engager (BiTE) antibody that specifically binds to B cell maturation antigen (BCMA) and CD3 of T cells, thereby directing T cells to multiple myeloma (MM) cells expressing BCMA and activating T cells to kill tumor cells. Linvoseltamab can be used in research of relapsed/refractory multiple myeloma (RRMM).

Pasotuxizumab (BAY 2010112) is a PSMA and CD3 bispecific T-cell engager (BiTE). Pasotuxizumab binds to CD3 and PSMA with K_Ds of 9.4 nM and 47.0 nM for human CD3 and PSMA. Pasotuxizumab can be used for research of metastatic castration-resistant prostate cancer (mCRPC).

Odronextamab is a stable humanized IgG4 CD20 × CD3 bispecific antibody that binds to CD3 on T cells and CD20 on B cells, triggering anti-tumor activity. Odronextamab is expected to be used in oncology research.

Vibecotamab (XmAb14045) is a potent bispecific antibody targeting both CD123 and CD3. Vibecotamab targets T cell-mediated killing of CD123-expressing cells, regardless of T cell antigen specificity. Vibecotamab is a full length immunoglobulin molecule. Vibecotamab can be studied in research for diseases such as Myelodysplastic syndrome and acute myeloid leukemia. Recommend Isotype Control: half-IG G1-kappa/(scFv-heavy-lambda)-h-CH2-CH3.