Propanoic acid, 2,2-dimethyl-, 4-[[[2-[[(carboxymethyl)amino]carbonyl]phenyl]amino]sulfonyl]phenyl ester, sodium salt (1:1)

Sivelestat sodium(ONO5046; LY544349; EI546) is a competitive inhibitor of human neutrophil elastase(IC50 = 44 nM; Ki=200 nM); also inhibited leukocyte elastase obtained from rabbit, rat, hamster and mouse.IC50 value: 44 nM [1]Target: neutrophil elastaseONO-5046 did not inhibit trypsin, thrombin, plasmin, plasma kallikrein, pancreas kallikrein, chymotrypsin and cathepsin G even at 100 microM. In in vivo studies, ONO-5046 suppressed lung hemorrhage in hamster (ID50 = 82 micrograms/kg) by i

Treatment of acute lung injury; acute respiratory distress syndrome (elastase inhibitor).Selective leukocyte elastase inhibitor (IC 50 = 44 nM) that displays no activity at a range of other proteases. Inhibits NF- κ B activation and LTB 4 -induced neutrophil transmigration in vitro . Significantly attenuates ischemia-induced spinal cord injury, decreases serum cytokine levels and reduces acute inflammatory lung injury in vivo .