Icotinib

Description

Icotinib is also known as ConMana. It is a highly selective, first-generation inhibitor of epidermal growth factor receptor tyrosine kinase (EGFR-TKI), whose mutation and overexpression is involved in many kinds of cancer. Icotinib is a quinazoline derivative that binds reversibly to the ATP binding site of the EGFR protein, being capable of blocking the signal transduction cascade. It is currently under investigation for its treatment efficacy on the EGFR+ Non-small cell lung cancer.

The Uses of Icotinib

Icotinib is a potent and specific epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) with IC50 of 5 nM.

Indications

Icotinib (Conmana?, BetaPharma), an EGFR inhibitor, was approved by the China State FDA in 2011 for the treatment of NSCLC. Icotinib resembles erlotinib in possessing the N-(3-ethylnylphenyl) quinazolin-4-amine core scaffold of erlotinib that binds to the EGFR ATP pocket. An adjacent hydrophobic group was also retained while the solvent exposed two 2-methoxyethyoxysubstituents at the 6- and 7-positions of the quinazoline core were cyclized to afford the tetraoxacyclododecene moiety of icotinib. Efficacy and safety of icotinib as first-line therapy in patients has been evaluated for advanced NSCLC in recent clinical studies.

General Description

Class: receptor tyrosine kinase
Treatment: NSCLC
Oral bioavailability = 52%
Elimination half-life = 5.5 h

References

Tan, F., et al. "Icotinib (BPI-2009H), a novel EGFR tyrosine kinase inhibitor, displays potent efficacy in preclinical studies. " Lung Cancer76.2(2012):177-82.
Shi, Y., et al. "Icotinib versus gefitinib in previously treated advanced non-small-cell lung cancer (ICOGEN): a randomised, double-blind phase 3 non-inferiority trial." Lancet Oncology 14.10(2013):953-61.
Sun, Y., Y. Shi, and L. Zhang. "A randomized, double-blind phase III study of icotinib versus gefitinib in patients with advanced non-small cell lung cancer (NSCLC) previously treated with chemotherapy (ICOGEN)."Journal of Thoracic Oncology 29.15(2011):-.
https://en.wikipedia.org/wiki/Icotinib