IP Library Granted Patent US 12,324,828
Granted Patent B2
US 12,324,828 · App. 18/114,710 · Granted Jun 10, 2025

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

Inventors: Mary J. Bossard (Madison, AL); Dawei Sheng (Fremont, CA)
Assignee: Nektar Therapeutics
A61K38/37A61K47/54A61K47/60C08G65/3314C08G65/3322C08G65/33306C08G65/33351C08G65/33396
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Quick Facts
Patent No.
US 12,324,828
App. No.
18/114,710
Granted
Jun 10, 2025
Kind
B2
Abstract

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.

Claims (5)

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.

Continuity (3)
Division 16319759
Provisional Application 62365836 · Jul 22, 2016
Related Publication 20230241181A1 · Aug 3, 2023
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