PEG-URATE OXIDASE CONJUGATES, THEIR APPLICATION, METHOD OF TETRAMERIC URICASE FORM SEPARATION Russian patent published in 2009 - IPC A61K38/44 A61K35/407 A61K47/48 

Abstract RU 2349341 C2

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention concerns biopharmaceutics and PEG conjugates of natural or recombinant urate oxidase (uricase). Uricase is bound covalently to poly(ethylene glycol) or poly(ethylene oxide) (both denoted as PEG), with average of 2 to 10 PEG threads are conjugated with each uricase sub-unit, and average molecular weight of PEG is approximately between 5 kDa and 100 kDa.

EFFECT: obtaining almost non-immunogenic PEG uricase conjugates preserving at least 75% of uricolytic activity of non-modified enzyme.

44 cl, 12 ex, 17 dwg

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RU 2 349 341 C2

Authors

Villiamz L. Dehvid

Khershfild Majkl S.

Kelli S'Juzehn Dzh.

Sajfer Mark Dzh. P.

Shermehn Mehrri R.

Dates

2009-03-20Published

2006-03-09Filed