| Biological Activity |
BI-9627 hydrochloride is potent sodium-hydrogen exchanger isoform 1 (NHE1) inhibitor, with IC50s of 6 and 31 nM in intracellular pH recovery (pHi) and human platelet swelling assays, respectively. BI-9627 hydrochloride displays >30-fold selectivity against NHE2 and with no measurable inhibitory activity against the NHE3 isoform. BI-9627 hydrochloride shows low DDI (drug-drug interaction) potential, excellent pharmacokinetics in rat and dog, and remarkably potent activity in the isolated heart model of ischemia-reperfusion injury[1].
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