CTS-1027 is a potent small molecule inhibitor of MMPs, with IC₅₀s of 0.3 nM, 0.5 nM for MMP2, MMP13, respectively, and has > 1,000 fold selectivity over MMP1. IC50 & Target: IC50: 0.2 nM (MMP2), 0.5 nM (MMP13), 0.7 nM (MMP12), 0.9 nM (MMP8), 9.5 nM (MMP3), 15 nM (MMP14) In Vivo: CTS-1027 significantly reduces the hepatocyte apoptosis, features of cholestatic liver injury, amd markers of hepatic fibrogenesis in the BDL mouse. CTS-1027 improves overall animal survival following 14 days of BDL in mice^[1]. In male animals treated for 8 weeks the terminal plasma concentration of RS-130830 is 311±45 nM. Treatment of male mice with RS-130830 for 8 weeks causes an 89% increase in plasma triglyceride concentration, but there is no corresponding effect in female mice treated for 12 weeks. The plaque lipid content of animals receiving RS-130830 is increased by 81% at 12 weeks, and increased by 41% at 16 weeks^[2].