Effective Combination Immunotherapy Using onCARlytics and Artemis® CD19 T Cells Against Hepatocellular Carcinoma (HCC) (ASGCT 2023)
Currently, there are six systemic therapies available for patients with advanced disease including atezolizumab in combination with bevacizumab, lenvatinib, regorafenib, cabozantinib and ramucirumab while curative treatments include ablation, surgical resection, and liver transplantation...We have harnessed this capability of OV and developed a chimeric vaccinia-based OV called CF33-CD19t (onCARlytics) that delivers a non-signaling, truncated CD19 (CD19t) antigen to solid tumors allowing CD19-specific T cells to target them...In addition, this combination approach demonstrated impressive in vivo anti-tumor responses in a human xenograft HepG2 tumor model. By using this combination OV and CAR T cell strategy, we have now broadened the utility of CD19 ARTEMIS® T cells to otherwise target-less tumors such as HCC, which we anticipate can be applied to a wide array of solid cancers as an effective immunotherapy approach.