Invention Grant
- Patent Title: Method of purifying therapeutic proteins
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Application No.: US14535085Application Date: 2014-11-06
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Publication No.: US09598461B2Publication Date: 2017-03-21
- Inventor: Hung Pham , Jeffrey Michael Hey , Darren Nguy
- Applicant: CSL Behring GmbH
- Applicant Address: DE Marburg
- Assignee: CSL Behring GmbH
- Current Assignee: CSL Behring GmbH
- Current Assignee Address: DE Marburg
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Main IPC: C07K1/22
- IPC: C07K1/22 ; C07K1/18 ; C07K1/20 ; C07K14/75 ; A61K38/36 ; C07K14/745 ; C07K14/755

Abstract:
The present invention relates generally to a method of reducing the level of at least one protein selected from the group consisting of plasminogen, tissue plasminogen activator and other protease(s) in a solution comprising at least one protein selected from the group consisting of fibrinogen, Factor VIII and von Willebrand factor (VWF), the method comprising: (i) passing a feedstock comprising at least one protein selected from the group consisting of fibrinogen, Factor VIII and VWF through a hydrophobic charge-induction chromatographic resin under conditions selected such that at least one protein selected from the group consisting of plasminogen, tissue plasminogen activator and other protease(s) present in the feedstock is bound to the resin; and (ii) recovering a solution comprising the at least one protein selected from the group consisting of fibrinogen, Factor VIII and VWF which passes through the resin, wherein the concentration of the at least one protein selected from the group consisting of plasminogen, tissue plasminogen activator and other protease(s) in the solution is reduced by at least 50% compared to the feedstock. Also provided are solutions and pharmaceutical formulations comprising the fibrinogen and/or Factor VIII and/or VWF recovered by such methods, and uses thereof.
Public/Granted literature
- US20150158906A1 Method of Purifying Therapeutic Proteins Public/Granted day:2015-06-11
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