Avitinib is a pyrrolopyrimidine-based, irreversible inhibitor of the epidermal growth factor receptor (EGFR). It is selective for EGFR-active and T790M mutations, exhibiting a 298-fold increase in potency compared with wild-type EGFR. In a xenograft model, oral administration of 500 mg/kg avitinib was shown to result in complete remission of tumors with EGFR-active and T790M mutations.
Avitinib is a third-generation, irreversible and orally active selective EGFR inhibitor, with IC50 values of 0.18 nM, 0.18 nM, 7.68 nM and against EGFR L858R, EGFR T790M and wild-type EGFR. Avitinib is also a BTK inhibitor that induces apoptosis and inhibits phosphorylation of BTK in mantle cell lymphoma. Avitinib shows anticancer effects.
IC50&Target
EGFR L858R EGFRT790M
0.18 nM (IC50) 0.18 nM (IC50)
体外研究
Avitinib (AC0010; 0.13 nM-2 μM; 2 h) selectively inhibits mutant EGFR phosphorylation in NCI-H1975 and NIH/3T3_TC32T8 cells, with IC50 values of 7.3 and 2.8 nM, respectively. It is approximately 115 times and 298 times more sensitive to inhibition than wild-type EGFR in A431. Avitinib effectively inhibits EGFR-Tyr1068 phosphorylation in NCI-H1975 cells, and the selectivity of NCI-H1975 cells is 65 times higher than that of A431 cells. In addition to inhibiting the phosphorylation of EGFR-Tyr1068, Avitinib also inhibits the phosphorylation of downstream targets Akt and ERK1/2 in NCI-H1975 and HCC827 cells .
Selectively inhibits mutant EGFR phosphorylation with IC50 values of 7.3 and 2.8 nM in NCI-H1975 and NIH/3T3_TC32T8 cells.
体内研究
Avitinib (AC0010; 12.5-500 mg/kg; oral; Once a day; Long term inhibition of EGFR mutant tumor growth in a xenograft model lasting for 14 days, but not inhibition of wild-type EGFR tumor growth .
Animal Model:
Nu/Nu nude mice (Six- to 8-week-old) injected with NCI-H1975 and A431 cells
Dosage:
12.5, 50, and 500 mg/kg
Administration:
Orally administration; once daily; for 14 days
Result:
Inhibited EGFR-mutant tumor growth but not wild-type EGFR tumor growth.
分子式
C26H26FN7O2
分子量
487.53
CAS号
1557267-42-1
中文名称
艾维替尼
运输条件
Room temperature in continental US; may vary elsewhere.