Ganetespib (STA-9090) (Synonyms: STA9090, STA 9090)

Ganetespib (also known as STA-9090), 5-[2,4-dihydroxy-5-(1 methylethyl)phenyl]-2,4 dihydro-4-(1-methyl-1H indol-5 yl)-3H-1,2,4 triazole-3-one, is a potent small-molecule inhibitor of heat shock protein 90 (Hsp90), which binds to the ATP pocket in the N-terminus of Hsp90 resulting in down-regulation of Hsp90 client protein levels. Being structurally unrelated to geldanamycin-derived Hsp90 inhibitors (17-AAG, 17-DMAG, and IPI-504), ganetespib has a unique triazolone-containing chemical structure and stands out other Hsp90 inhibitors in terms of potency, antitumor activity, and safety profile. Results of previous studies indicate that ganetespib exhibits antitumor activity against a broad range of human cancers, including lung cancer, prostate cancer, colon cancer, breast cancer, melanoma and leukemia.

Reference

[1].Weiwen Ying, Zhenjian Du, Lijun Sun, Kevin P. Foley, David A. Proia, Ronald K. Blackman, Dan Zhou, Takayo Inoue, Noriaki Tatsuta, Jim Sang, Shuxia Ye, Jamie Acquaviva, Luisa Shin Ogawa, Yumiko Wada, James Barsoum, and Keizo Koya. Ganetespib, a unqiue triazolone-containing Hsp90 inhibitor, exhibits potent antitumor activity and a superior safety profile for cancer therapy. Mol Cancer Ther 2012; 11: 475-484
[2].Jonathan W Goldman, Robert N Raju, Gregory A Gordon, Iman El-Hariry, Florentina Teofilivivi, Vojo M Vukovic, Robert Bradley, Michael D Karol, Yu Chen, Wei Guo, Takayo Inoue and Lee Rosen. A first in human, safety, pharmacokinetics, and clinical activity phase I study of once weekly administration of the Hsp90 inhibitor ganetespib (STA-9090) in patients with solid malignancies. BMC Cancer 2013; 13:152