AZD3759 is also known as zorifertinib. It is an orally available inhibitor of the epidermal growth factor receptor (EGFR), with potential antineoplastic activity. Upon oral administration, AZD3759 binds to and inhibits the activity of EGFR as well as certain mutant forms of EGFR. This prevents EGFR-mediated signaling, and may lead to both induction of cell death and inhibition of tumor growth in EGFR-overexpressing cells. EGFR, a receptor tyrosine kinase mutated in many tumor cell types, plays a key role in tumor cell proliferation and tumor vascularization.
CAS Number: 1626387-80-1
Molecular Weight: 459.90
Chemical Name: (R)-4-((3-chloro-2-fluorophenyl)amino)-7-methoxyquinazolin-6-yl 2,4-dimethylpiperazine-1-carboxylate
Appearance: Solid Power
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: Soluble in DMSO, not in water
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥12 months if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined.
HS Tariff Code: 382200
How to use
At 2 mM of ATP concentrations, the IC50s are 102, 7.6, and 2.4 nM for EGFRwt, EGFRL858R, and EGFRexon 19Del, respectively. 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, AZD3759 also demonstrates 9-fold inhibition selectivity in EGFR-activating mutant cell lines over EGFR wild-type cell lines (H838 cell line).
Following oral dosing in rats at 2 mg/kg, absorption of AZD3759 is rapid with blood Cmax of 0.58 μM achieved at 1.0 h. Subsequently, blood concentrations of AZD3759 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 AZD3759 in male dogs are determined following both a single dose intravenous infusion and oral administration. Following the IV dose in dogs, AZD3759 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 AZD3759 is rapid with blood Cmax (698 nM) occurring between 0.5 and 1.5 h. The oral bioavailability of AZD3759 is excellent at 90%. AZD3759 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 <20% body weight loss, whereas erlotinib had a limited effect in this model. At the end of the study, brain tissues are collected for histological assessment. Significantly decreased tumor area is observed by AZD3759 treatment at the doses of 7.5 and 15 mg/kg. In addition, modulation of pEGFR is detected by a single dose of AZD3759 at 15 mg/kg 1h after dosing, which confirmed target engagement by AZD3759.
- Tan CS, Cho BC, Soo RA. Next-generation epidermal growth factor receptor tyrosine kinase inhibitors in epidermal growth factor receptor -mutant non-small cell lung cancer. Lung Cancer. 2016 Mar;93:59-68. doi: 10.1016/j.lungcan.2016.01.003. Epub 2016 Jan 8. Review. PubMed PMID: 26898616.
- Zeng Q, Wang J, Cheng Z, Chen K, Johnström P, Varnäs K, Li DY, Yang ZF, Zhang X. 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. doi: 10.1021/acs.jmedchem.5b01073. Epub 2015 Oct 9. PubMed PMID: 26313252. (Last updated: 4/20/2016).
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