Discovery of OSI-906: a selective and orally efficacious dual inhibitor of the IGF-1 receptor and insulin receptor
- Future Med Chem. 2009 Sep;1(6):1153-71. doi: 10.4155/fmc.09.89.
- 1. (OSI) Oncology, OSI Pharmaceuticals, Inc., 41 Pinelawn, Melville, NY 11747, USA. [email protected]
Background: The IGF-1 receptor (IGF-1R) has been implicated in the promotion of tumorigenesis, metastasis and resistance to Cancer therapies. Therefore, this receptor has become a major focus for the development of Anticancer agents.
Results: Our lead optimization efforts that blended structure-based design and empirical medicinal chemistry led to the discovery of OSI-906, a novel small-molecule dual IGF-1R/Insulin Receptor (IR) kinase inhibitor. OSI-906 potently and selectively inhibits autophosphorylation of both human IGF-1R and IR, displays in vitro antiproliferative effects in a variety of tumor cell lines and shows robust in vivo anti-tumor efficacy in an IGF-1R-driven xenograft model when administered orally once daily.
Conclusion: OSI-906 is a novel, potent, selective and orally bioavailable dual IGF-1R/IR kinase inhibitor with favorable preclinical drug-like properties, which has demonstrated in vivo efficacy in tumor models and is currently in clinical testing.
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