JPI 547, also known as NOV 1402, is an oral inhibitor of PARP 1 2 and Tankyrase 1 2. JPI-547 demonstrated anti-tumor activity in BRCA-deficient xenograft models as a single-agent and in combination with chemotherapy and immune checkpoint inhibitors.
KR30031 is a novel P-glycoprotein inhibitor with potential anticancer activity. KR30031 is a verapamil analog with fewer cardiovascular effects. The ability of KR-30031 to reduce this efflux transport is equal to that of verapamil, a well-known P-glycoprotein inhibitor. The bioavailability of paclitaxel could be enhanced by coadministration of a P-glycoprotein inhibitor, KR-30031.