– GDC-2394 is an orally active and selective NLRP3 inhibitor, and also inhibits IL-1? with IC50s of 0.4 ?M (human IL-1?) and 0.1 ?M (mouse IL-1?). GDC-2394 inhibits NLRP3-induced caspase-1 activity without inhibiting NLRC4-dependent inflammasome activation.