Elan, Biogen change terms of Tysabri collaboration

Published



Biogen Idec will take over full ownership of the multiple sclerosis treatment Tysabri from its partner Irish drugmaker Elan Corp. PLC in exchange for a $3.25 billion cash payment and royalties on future sales.

The drug developers currently split earnings from Tysabri, but Elan said the new deal will give it capital for investing and growing its business.

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