Drug intelligence / Profile preview

JS203 + lenalidomide

Development stage
Phase 2
Lead developer
Junshi Biosciences
Modality
T-cell Engagers → Multispecific Antibodies → Engineered Antibody Formats → Antibody-Based Therapeutics, Bispecific Antibodies → Multispecific Antibodies → Engineered Antibody Formats → Antibody-Based Therapeutics, Small Molecules
Administration
Intravenous, Oral
01

Overview

JS203 + lenalidomide is a combination therapy being developed by Shanghai Junshi Bioscience for the treatment of various B-cell non-Hodgkin lymphomas, including diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL), mantle cell lymphoma (MCL), and marginal zone lymphoma (MZL). JS203 is a recombinant humanized bispecific antibody that targets CD20 on malignant B-cells and CD3 on T-cells, facilitating T-cell-mediated cytotoxicity against the tumor cells. Lenalidomide is an oral immunomodulatory drug (IMiD) that binds to the Cereblon (CRBN) E3 ubiquitin ligase complex, leading to the degradation of transcription factors Ikaros (IKZF1) and Aiolos (IKZF3). This action results in direct anti-tumor effects and enhances the activity of immune effector cells, potentially providing a synergistic therapeutic effect when combined with the T-cell engaging mechanism of JS203.

02

Targets

CD20 (B-lymphocyte antigen CD20)CD3 (T-cell surface glycoprotein CD3)CK1α (Casein kinase I alpha)CRBN (Cereblon)IKZF1 (Ikaros family zinc finger protein 1)IKZF3 (Zinc finger protein Aiolos)

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