MedChemExpress LLC (MCE)

MedChemExpress - Model Zorifertinib - 1626387-80-1

Zorifertinib (AZD3759) is a potent, orally active, central nervous system-penetrant, EGFR inhibitor. At Km ATP concentrations, the IC50s are 0.3, 0.2, and 0.2 nM for EGFRwt, EGFRL858R, and EGFRexon 19Del, respectively. Zorifertinib induces cancer cell apoptosis. Zorifertinib has antitumor activity, and can be used for NSCLC, HCC etc. research[1].

Zorifertinib

MCE China：Zorifertinib

Brand：MedChemExpress (MCE)

Cat. No.HY-18750

CAS：1626387-80-1

Synonyms：AZD3759

Purity：99.37%

Storage：Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year

Shipping：Room temperature in continental US; may vary elsewhere.

Description：Zorifertinib (AZD3759) is a potent, orally active, central nervous system-penetrant, EGFR inhibitor. At Km ATP concentrations, the IC50s are 0.3, 0.2, and 0.2 nM for EGFRwt, EGFRL858R, and EGFRexon 19Del, respectively. Zorifertinib induces cancer cell apoptosis. Zorifertinib has antitumor activity, and can be used for NSCLC, HCC etc. research.

In Vitro：At 2 mM of ATP concentrations, the IC50s are 102, 7.6, and 2.4 nM for EGFRwt, EGFRL858R, and EGFRexon 19Del, respectively. Zorifertinib (AZD3759) also inhibits pEGFR in H838wt, H3255L858R, and PC-9exon 19Del with IC50 of 64.5, 7.2, and 7.4 nM, respectively. In cellular phosphorylation studies, Zorifertinib also demonstrates 9-fold inhibition selectivity in EGFR-activating mutant cell lines over EGFR wild-type cell lines (H838 cell line)[1].

In Vivo：Following oral dosing in rats at 2 mg/kg, absorption of Zorifertinib (AZD3759) is rapid with blood Cmax of 0.58 μM achieved at 1.0 h. Subsequently, blood concentrations of Zorifertinib decline monoexponentially with a mean elimination half-life of 4.3 h, which is close to the same parameter obtained from intravenous dosing of 4.1 h. The bioavailability following an oral dose in rats is 91%. Blood pharmacokinetic parameters of Zorifertinib in male dogs are determined following both a single dose intravenous infusion and oral administration. Following the IV dose in dogs, Zorifertinib blood clearance is determined as 14 mL/min per kg, and the volume of distribution is 6.4 L/kg. Its elimination half-life is 6.2 h. Absorption of Zorifertinib is rapid with blood Cmax (698 nM) occurring between 0.5 and 1.5 h. The oral bioavailability of Zorifertinib is excellent at 90%. Zorifertinib demonstrated significant dose-dependent antitumor efficacy (78% tumor growth inhibition at 7.5 mg/kg qd and tumor regression at 15 mg/kg qd, respectively, 4 weeks after treatment) with [1].

Animal Administration：Rats[1] Male Han Wistar rats are orally dosed with the Zorifertinib at 2 mg/kg in 1% methylcellulose. At 0.25, 0.5, 1, 2, 4 and 7 hour post-dose, cerebral spinal fluid (CSF) is collected from cisterna magna, and blood samples (>60 μL/time point/each site) are collected via cardiac puncture, into separate EDTA coagulated tubes, and then immediately diluted with 3-fold volume of water. Brain tissue is harvested and homogenized in 3x volume of 100 mM phosphate buffered saline (pH7.4). All samples are stored at -70°C prior to LC/MS/MS analysis.

Cell Assay：Cell proliferation assay is determined by MTS methods. Briefly, cells are seeded in 96-well plates (at a density to allow for logarithmic growth during the 72-hour assay) and incubated overnight at 37°C and 5% CO2. Cells are then exposed to concentrations of compounds (e.g., Zorifertinib) ranging from 30 mM to 0.3μM for 72 hours. For the MTS endpoint, cell proliferation is measured by the CellTiter AQueous Non-Radioactive Cell Proliferation Assay reagent. Absorbance is measured with a Tecan Ultra instrument. Predose measurements are made, and concentration needed to reduce the growth of treated cells to half that of untreated cells (GI50) values are determined using absorbance readings[1].

IC50 & Target：EGFR 0.3 nM (IC50) EGFRL858R 0.2 nM (IC50) EGFRExon 19 deletion 0.2 nM (IC50)

References：

[1]. Zeng Q, et al. Discovery and Evaluation of Clinical Candidate AZD3759, a Potent, Oral Active, Central Nervous System-Penetrant, Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor. J Med Chem. 2015 Oct 22;58(20):8200-15. [Content Brief]

[2]. Chao D, et al. AZD3759 induces apoptosis in hepatoma cells by activating a p53-SMAD4 positive feedback loop. Biochem Biophys Res Commun. 2019 Feb 5;509(2):535-540. [Content Brief]

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