Enpp-1-IN-19

Enpp-1-IN-19 (compound 29f) is an orally active inhibitor of ENPP1 that effectively blocks cGAMP hydrolysis with an IC50 of 68 nM. It not only enhances anti-PD-L1 responses and curtails tumor growth in CT26 syngeneic models but also boosts STING-mediated type I interferon responses. Additionally, Enpp-1-IN-19 fosters immune memory and aids in preventing tumor recurrence [1].