h3255

Afatinib (BIBW 2992) is an irreversible inhibitor of the EGFR family (EGFR-wt, EGFR-L858R, EGFR-L858R T790M, and HER2) with IC50s of 0.5 nM, 0.4 nM, 10 nM, and 14 nM, respectively.

MS 154 is a potent and selective cereblon-recruiting Degrader (PROTAC®) of mutant epidermal growth factor receptor (EGFR), comprising a cereblon-binding moiety joined by a linker to gefitinib(Iressa). MS 154 decreases EGFR protein levels, inhibits downstream signaling in and inhibits proliferation of mutant EGFR-bearing lung cancer cells (DC50values are 11 and 25 nM in HCC-827 and H3255 cells, respectively; Dmax> 95% at 50 nM), but not in WT-EGFR-bearing ovarian and lung cancer cells lines. Bioavailable in mice following ip administration.

Erlotinib (NSC-718781) is an EGFR inhibitor (IC50: 2 nM). It is used for the treatment of non-small cell lung cancer.

Afatinib Dimaleate (BIBW 2992MA2) is an orally bioavailable anilino-quinazoline derivative and inhibitor of the receptor tyrosine kinase (RTK) epidermal growth factor receptor (ErbB; EGFR) family, with antineoplastic activity.

MS 39 is a highly effective, highly affinity and selective depressant of mutant epidermal growth factor receptor (EGFR) with high efficiency, high affinity and selectivity. MS 39, conjured by gefitinib to VHL ligand via a linker, effectively induced the degradation of mutant EGFR (DC50 values in HCC827(exon 19 del) and H3255 (L858R mutation) lung cancer cell lines were 5 nM and 3.3 nM, respectively). However, there was no significant effect in wild-type EGFR cell lines with concentrations up to 10 μM. MS 39 inhibited the proliferation of H3255 lung cancer cells in vitro and was bioavailable in mice after administration.

Gefitinib-based PROTAC 3, which connects an EGFR binding element to a VHL ligand via a linker, induces EGFR degradation with DC50s of 11.7 nM and 22.3 nM in HCC827 (exon 19 del) and H3255 (L858R mutation) cells, respectively[1].

WZ8040 is a novel mutant-selective irreversible EGFRT790M inhibitor, does not inhibit ERBB2 phosphorylation (T798I).