In addition, givastomig-mediated T cell activation and tumor-killing was enhanced in combination with chemotherapies used in 1L or 2L treatment for gastric cancer, including 5-fluorouracil plus oxaliplatin (FOLFOX) and paclitaxel...2 expression (25–50% of 2+), a triple-combination of givastomig, nivolumab and FOLFOX resulted in better tumor growth inhibition (TGI=40%), accompanied by an increase in tumor-infiltrating T cells, compared to nivolumab plus FOLFOX (TGI=8%)...2 expression. The synergistic anti-tumor activity by givastomig in combination with current therapeutics in 1L/2L treatment for gastric cancer, as demonstrated in preclinical studies, warrants further investigation of these combinations in clinics.
The PK profile, s4-1BB induction, and efficacy signal support 12 mg/kg as an optimal dose. Further development of givastomig mono- and combo- therapy in GEC and other cancers is planned.
Givastomig/ABL111 is a novel CLDN18.2×4-1BB bispecific antibody which has the potential to treat patients with gastric cancer with a wide range of CLDN18.2 expression level through the restricted activation of 4-1BB T cells in tumor microenvironment to avoid the risk of liver toxicity and systemic immune response.
TJ-CD4B did not induce systemic immune response nor hepatic toxicity due to the CLDN18.2 dependent 4-1BB stimulation. These data warrant the current clinical development in phase I trial to validate the safety properties and tumor specific responses.
3 years ago
Preclinical • IO biomarker
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CLDN18 (Claudin 18) • CD8 (cluster of differentiation 8) • TNFRSF9 (TNF Receptor Superfamily Member 9)