Privately-held US biotech firm Acceleron Pharma says that Ireland-headquartered Shire (LSE: SHP) has concluded its collaboration on ACE-031 and related molecules. The clinical development of ACE-031 was suspended in February 2011 and since then the companies have conducted preclinical studies to determine whether to resume clinical studies.
The companies have now decided not to restart the development of this program. Acceleron remains focused on the 11 Phase II clinical studies currently underway across its three investigational protein therapeutics - sotatercept, dalantercept and ACE-536 – in oncology and hematology.
Shire entered into a collaboration with Acceleron in 2010, paying an upfront $45 million for rights to develop and commercialize ACE-031 in Duchenne muscular dystrophy (DMD), in a deal that could have been worth as much as $500 million in total (The Pharma Letter September 10, 2010).
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