Description |
AMG 511 is a potent and orally available pan inhibitor of class I PI3Ks, with Kis of 4 nM, 6 nM, 2 nM and 1 nM for PI3Kα, β, δ and γ, respectively. AMG 511 significantly suppresses PI3K signaling that is indicated by p-Akt (Ser473) decrease. AMG 511 exhibits anti-tumor activity in mouse glioblastoma xenograft model[1].
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Related Catalog |
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Target |
PI3Kα:4 nM (Ki)
PI3Kβ:6 nM (Ki)
PI3Kδ:2 nM (Ki)
PI3Kγ:1 nM (Ki)
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In Vitro |
AMG 511 shows the inhibition of AKT (Ser473) phosphorylation in U87 malignant glioma (MG) cells with an IC50 of 4 nM[1].
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In Vivo |
AMG 511 potently blocks the targeted PI3K pathway in a mouse liver pharmacodynamic model (3-30 mg/kg; p.o.) and inhibits tumor growth in a U87 MG glioblastoma xenograft model (3-30 mg/kg; p.o.; daily; for 12 days)[1]. AMG 511 shows excellent in vivo efficacy and pharmacokinetic profile[1]. Animal Model: Female CD1 NU/NU mice, with U87 MG glioblastoma xenograft model[1] Dosage: 1 mg/kg, 3 mg/kg, 10 mg/kg Administration: Oral administration, daily, for 12 days Result: Inhibited tumor growth. Animal Model: Male Sprague-Dawley rats[1] Dosage: 1 mg/kg Administration: Oral administration (Pharmacokinetic Analysis) Result: Had a superior pharmacokinetic profile with low clearance (0.4 L/h/kg, 12% of liver blood flow), good oral bioavailability (F = 60%), and a commensurate high oral exposure (AUC = 5.0 μM·h).
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References |
[1]. Mark H Norman, et al. Selective Class I Phosphoinositide 3-kinase Inhibitors: Optimization of a Series of Pyridyltriazines Leading to the Identification of a Clinical Candidate, AMG 511. J Med Chem. 2012 Sep 13;55(17):7796-816.
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