Conjugates of a factor VIII moiety having an oxime-containing linkage

US12324828B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12324828-B2
Application numberUS-202318114710-A
CountryUS
Kind codeB2
Filing dateFeb 27, 2023
Priority dateJul 22, 2016
Publication dateJun 10, 2025
Grant dateJun 10, 2025

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

The present disclosure provides conjugates comprising a Factor VIII moiety covalently attached via an oxime-containing linkage to a water-soluble polymer, such as for example, a polyethylene glycol polymer. Methods for preparing and for administering such conjugates, are also provided, as are water-soluble polymer oxyamine reagents useful for preparing the subject conjugates, among other things.

First claim

Opening claim text (preview).

It is claimed: 1. A polymeric oxyamine reagent having a structure selected from: where X is-NH(CH 2 ) 1-6 NHC(O)CH 2 —, and each (n) ranges from about 1 to about 4,000. 2. The polymeric oxyamine reagent of claim 1 , wherein X is —NH(CH 2 ) 2 NHC(O)CH 2 —. 3. The polymeric oxamine reagent of claim 1 , wherein each (n) is about 227. 4. The polymeric oxamine reagent of claim 1 , wherein each (n) is selected such that the weight average molecular weight of the branched poly(ethylene glycol) polymer ranges from greater than 5,000 Daltons to 100,000 Daltons.

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What does patent US12324828B2 cover?
The present disclosure provides conjugates comprising a Factor VIII moiety covalently attached via an oxime-containing linkage to a water-soluble polymer, such as for example, a polyethylene glycol polymer. Methods for preparing and for administering such conjugates, are also provided, as are water-soluble polymer oxyamine reagents useful for preparing the subject conjugates, among other things.
Who is the assignee on this patent?
Nektar Therapeutics
What technology area does this patent fall under?
Primary CPC classification A61K47/60. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Jun 10 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).