Process for the production of preformed conjugates of...

C - Chemistry – Metallurgy – 07 – K

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C07K 14/76 (2006.01) A61K 38/26 (2006.01) A61K 47/42 (2006.01) A61K 47/48 (2006.01) C07K 1/10 (2006.01) C07K 1/20 (2006.01) C07K 1/36 (2006.01) C07K 14/605 (2006.01) C07K 14/765 (2006.01) C07K 19/00 (2006.01) C12P 21/02 (2006.01)

Patent

CA 2634495

The present invention provides processes for the production of preformed albumin conjugates. In particular, the invention provides processes for the in- vitro conjugation of a therapeutic compound to recombinant albumin, wherein a therapeutic compound comprising a reactive group is contacted to recombinant albumin in solution to form a conjugate. The processes provide for conjugation to albumin species of increasing homogeneity . The resulting conjugate is purified by chromatography, in particular hydrophobic interaction chromatography comprising phenyl sepharose and butyl sepharose chromatography.

La présente invention concerne des procédés de production de conjugués d'albumine préformés. En particulier, l'invention concerne des procédés de conjugaison in vitro d'un composé thérapeutique à une albumine recombinante au cours desquels un composé thérapeutique comprenant un groupe réactif est mis en contact avec une albumine recombinante en solution afin de former un conjugué. Les procédés permettent la conjugaison à des espèces d'albumine d'homogénéité croissante. Le conjugué résultant est purifié par chromatographie, en particulier par chromatographie d'interaction hydrophobe, comprenant la chromatographie sur phénylsépharose et sur butylsépharose.

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