Researchers from Takeda Pharmaceutical Co. Ltd. detailed the preclinical characterization of TAK-188, a first-in-class anti-CCR8 antibody-drug conjugate (ADC) designed to selectively target CCR8+ Tregs, alleviating immunosuppression in the tumor microenvironment.
Abilita Therapeutics Inc. has developed a novel approach targeting CCR8 – ABT-863 – that works as a potent inverse agonist to block CCL1-dependent and basal receptor signaling.
CCR8 is highly expressed on immunosuppressive regulatory T cells (Tregs) in various solid tumors, making it a potential target to enhance antitumor immunity and the efficacy of cancer therapies, including checkpoint inhibitors. However, the impact of CCR8 expression on the Treg phenotype and its role in cancer progression remain unclear.
Antibodies targeting cytotoxic T-lymphocyte protein 4 (CLTA-4) have faced challenges due to frequent adverse events and limited efficacy, thus pushing the search for next-generation anti-CTLA-4 antibodies that balance T regulatory cell (Treg) depletion with CD8 T-cell activation for cancer immunotherapy.
Ibio Inc. has announced promising in vivo data for three immuno-oncology candidates, anti-EGFRvIII, CCR8 and a bispecific TROP-2 x CD3, advancing these programs to clinical candidate selection stage.
