BLU-945 is a potent, highly selective, reversible, and orally active epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI). It can effectively inhibit EGFR with L858R and/or exon 19 deletion mutation, T790M mutation, and C797S mutation. BLU-945 can be used for research on lung cancer, including non-small cell lung cancer (NSCLC)[1].
IUPAC/Chemical Name: N-(2-((3S,4R)-3-fluoro-4-methoxypiperidin-1-yl)pyrimidin-4-yl)-5-isopropyl-8-((2R,3S)-2-methyl-3-((methylsulfonyl)methyl)azetidin-1-yl)isoquinolin-3-amine.
According to clinical studies of BLU-945, common side effects of BLU-945 monotherapy include: rash, diarrhoea, nausea, vomiting, headache, dry skin, onychomycosis, and elevated alanine aminotransferase and aspartate aminotransferase.
Common side effects of the combination of BLU-945 and ositinib include: headache, nausea, fatigue, decreased appetite, vomiting, diarrhoea, dry skin, acne-like dermatitis and onychomycosis.
BLU-945 has inhibitory activity against the EGFRm/T790M double and EGFRm/T790M/C797Striple mutants with IC50 value range from 1.2-4.4 nM.
BLU-945 (0- 10 mM, 4 h) inhibit EGFR phosphorylation in the EGFR L858R/T790M/C797S, and EGFR ex19del/T790M/C797S mutant cell lines.
[1] Y. Elamin. “BLU-945 monotherapy and in combination with osimertinib (OSI) in previously treated patients with advanced EGFR-mutant (EGFRm) NSCLC in the phase 1/2 SYMPHONY study.” Journal of Clinical Oncology (2023).
