PF-06409577 is an activator of AMP-activated protein kinase (AMPK) heterotrimers (Kd = 9 nM for α1β1γ1). In vitro, it selectively activates β1-containing AMPK isoforms (EC50s = 2.18-7.03 nM) over β2-containing isoforms (EC50s = ≥10 μM). PF-06409577 has an EC50 value of 7 nM in an activation/protection TR-FRET assay using α1β1γ1 AMPK. In vivo, PF-06409577 (≥10 mg/kg) increases phosphorylation of AMPK in rat kidney. It decreases urinary albumin levels in a ZSF1 obese rat model of diabetes, metabolic syndrome, and renal disease when administered at a dose of 100 mg/kg.
