Biological Activity
AZ-5104 is an active, demethylated metabolite of AZD 9291. AZ-5104 is an EGFR inhibitor with IC50s of 1, 6, 1, 25 and 7 nM for EGFRL858R/T790M, EGFRL858R, EGFRL861Q, EGFR and ErbB4, respectively.
In Vitro
AZ-5104 inhibits EGFR phosphorylation with IC50s of 2, 1, 2, 53, and 33 nM in H1975 (EGFRL858R/T790M), PC-9VanR (EGFRExon 19 deletion/T790M), PC-9 (EGFRExon 19 deletion), H2073 (WT), and LOVO (WT), respectively. AZ5104 exhibits a reduced selectivity margin against wild-type EGFR when compared to AZD9291. AZ5104 display minimal off-target activity against other non-HER family kinases, but has the potential to target both HER2 and HER4 kinase activity[1].
In Vivo
The metabolite, AZ5104 (5 mg/kg/day), is effective in shrinking tumors in both C/L858R and C/L+T mice[1].
References & source
Published experimental findings depend on the model and assay conditions. They do not guarantee equivalent performance in every application. For laboratory research use only.
