Shares in the USA's Infinity Pharmaceuticals fell 4% to $7.25 on July 15, after the drugmaker said it would halt the development of IPI-504 as a prostate cancer drug. However, the agent is still being evaluated in other cancers, together with partner, Anglo-Swedish firm AstraZeneca.
Infinity stopped enrollment in a Phase II single-agent, signal-finding study of IPI-504 (retaspimycin HCl) in advanced hormone-refractory prostate cancer after it did not observe evidence of biologic activity.
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