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Drug Names(s): CRA-024781, PCI-24781, S 78454, S-78454
Description: PCI-24781 is an inhibitor of histone deacetylase (HDAC). HDAC enzymes play a role in modifying the structure of chromatin, allowing DNA transcription – a process by which DNA controls cellular activity – to occur. HDAC inhibitors appear to alter the transcription process.
HDAC inhibitors target tumors through multiple mechanisms, and laboratory studies have shown that they can prompt cells to stop growing or die. This may happen through the expression of tumor suppressor genes, the prevention of angiogenesis and the targeting of various critical proteins.
Pharmacyclics and Celera
In April 2006, Pharmacyclics acquired multiple small molecule drug candidates for the treatment of cancer and other diseases from Celera Genomics. Under the terms of the agreement, Pharmacyclics has acquired Celera technology and intellectual property relating to drugs that target histone deacetylase (HDAC) enzymes, selective HDAC enzymes, angiogenesis molecules and B cell tyrosine kinases involved in immune function.
The financial terms of the transaction include an upfront cash payment of $2 million and an equity payment of between five hundred thousand and one million shares of Pharmacyclics common stock, depending on Pharmacyclics' stock price during a specified period. If these programs meet certain developmental stage milestone events and result in drugs that are approved and commercialized in key geographical markets they may generate potential future milestone payments to Celera of up to $144 million. In addition, Celera will be entitled...See full deal structure in Biomedtracker
Partners: Quest Diagnostics Incorporated
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