GenSpera Receives Patent on Targeted Prostate Cancer Drugs

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SAN ANTONIO--(BUSINESS WIRE)--GenSpera, Inc. (OTC.BB: GNSZ) announced that the United States Patent and Trademark Office (USPTO) issued patent 8,450,280 “Activation of Peptide Prodrugs by HK2.” The patent covers the composition of a series of prodrugs activated by HK2 to deliver a thapsigargin derivative selectively to prostate cancers. HK2 is an enzyme secreted by prostate cancer cells. A derivative of thapsigargin, 12ADT, is the active component of G-202, GenSpera’s lead drug candidate in Phase II clinical trials for liver cancer after sorafenib (Nexavar®) therapy.

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