this is what the NR said:
MONTREAL, QUEBEC, CANADA - April 5, 2011 - ProMetic Life Sciences Inc. (TSX:PLI) ("ProMetic") today announced that it had entered into an Agreement ("Agreement") with Celgene Corporation ("Celgene"), for the worldwide rights to a commercial application of ProMetic's Protein Technologies.
Under the terms of this Agreement, Abraxis BioScience, Inc. ("Abraxis"), a wholly owned subsidiary of Celgene will forgive a US$10M long-term debt entered into with ProMetic on February 9, 2010, effectively terminating said loan agreement four years prior to its original term in return for intellectual property rights for specific commercial application of its Protein Technologies within restricted fields of use.
Of course, the logical approch in speculation would be that Celgene be able to extend the life patent of Abraxane using a different way to purify albumin. But that deal was closed in April 5, maybe it's too early for PLI to already by "lock in" the process.