Information NVP-CGM097 NVP-CGM097 is a highly potent and selective MDM2 inhibitor with Ki value of 1.3 nM for hMDM2 in TR-FRET assay. It binds to the p53 binding-site of the Mdm2 protein, disrupting the interaction between both proteins, leading to an activation of the p53 pathway.
Targets hMDM2 (Cell-free assay) 1.7 nM
In vitro NVP-CGM097 binding to MDM2 is species dependent. It was shown to be selective for the p53:MDM2 interaction compared to the p53:MDM4 interaction (1176-fold selectivity) and the Ras:Raf interaction (3000-fold selectivity). In addition, NVP-CGM097 showed no significant activity against Bcl-2:Bak, Bcl-2:Bad, Mcl-1:Bak, Mcl-1:NOXA, XIAP:BIR3, and c-IAP:BIR3 protein-protein interactions. NVP-CGM097 was able to significantly redistribute wild-type p53 into the cell nucleus with an IC50 of 0.224 μM, demonstrating its ability to inhibit the p53:MDM2 interaction in living cells. NVP-CGM097 treatment leads to p53 nuclear translocation that results in cell growth inhibition in a p53-dependent manner.
In vivo After iv administration, the total blood clearance (CL) of NVP-CGM097 was 5 mL/min/kg for mouse, 7 mL/min/kg for rat, 3 mL/min/kg for dog, and 4 mL/min/kg for monkey. On the basis of the respective hepatic blood flows, NVP-CGM097 showed a consistent low total blood CL in all species (5-10% of hepatic blood flow). The apparent terminal half-life (t1/2) was long in rodents and monkey (6-12 h) but was comparatively longer in dogs (20 h). After oral dosing, the compound was well absorbed with Tmax occurring between 1 and 4.5 h in all species tested. The oral bioavailability (%F) was high in mouse, rat, and dog and moderate in monkey. NVP-CGM097 was able to inhibit the interaction between p53 and MDM2 and reactivate the p53 pathway in vivo in a MDM2-amplified SJSA-1 human tumor model. p21 mRNA levels were found to increase concomitantly with levels of compound 1 in tumor-bearing rats dosed at 30 mg/kg. Daily treatment with NVP-CGM097 dose dependently and significantly inhibited SJSA-1 tumor growth in rats.
Cell Research(from reference) Cell lines：Bon1 cells, NCI-H727 cells, Got1 cells Concentrations：0.1 nM-2500 nM Incubation Time：48 hrs, 96 hrs, 144 hrs or 216 hrs | 
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