IP Library Granted Patent US 11,590,097
Granted Patent B2
US 11,590,097 · App. 16/389,272 · Granted Feb 28, 2023

Aqueous iron carbohydrate complexes, their production and medicaments containing them

Inventors: Peter Geisser (St. Gallen, CH); Erik Philipp (Arbon, CH); Walter Richie (Gossau, CH)
Assignee: Vifor (International) AG
A61K31/295A61K31/718A61K33/26A61K45/06A61K47/61A61P7/06C08B30/18C08B31/185C08B37/0009Y10S514/814
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Quick Facts
Patent No.
US 11,590,097
App. No.
16/389,272
Granted
Feb 28, 2023
Kind
B2
Abstract

A water soluble iron carbohydrate complex obtainable from an aqueous solution of iron (III) salt and an aqueous solution of the oxidation product of one or more maltodextrins using an aqueous hypochlorite solution at a pH-value within the alkaline range, where, when one maltodextrin is applied, its dextrose equivalent lies between 5 and 20, and when a mixture of several maltodextrins is applied, the dextrose equivalent of the mixture lies between 5 and 20 and the dextrose equivalent of each individual maltodextrin contained in the mixture lies between 2 and 40, process for its production and a medicament for the treatment and prophylaxis of iron deficiency conditions.

Claims (21)

1. A composition comprising at least one iron (III) carbohydrate complex, said iron (III) carbohydrate complex comprising:

an oxidized maltodextrin ligand, wherein in the formation of the oxidized maltodextrin ligand when one maltodextrin is applied prior to oxidation the dextrose equivalent lies between 5 and 20, and when a mixture of several maltodextrins is applied, the dextrose equivalent of the mixture lies between 5 and 20 and the dextrose equivalent of each individual maltodextrins contained in the mixture lies between 2 and 40, and

wherein said iron (III) carbohydrate complex has:

an iron content of 20% to 35% (weight/weight), expressed in relation to the total weight of said iron (III) carbohydrate complex and

a weight average molecular weight ranging from 80 kDa to 400 kDa.

2. The composition of claim 1 , wherein one maltodextrin with a dextrose equivalent between 9.6 and 14 is applied prior to oxidation and wherein said iron (III) carbohydrate complex has a weight average molecular weight ranging from 118 kDa to 271 kDa.

3. The composition of claim 2 , further comprising at least one pharmaceutically acceptable carrier, excipient, or additive.

4. The composition of claim 3 , wherein said composition is an aqueous solution.

5. The composition of claim 4 , wherein said aqueous solution is a brine solution.

6. The composition of claim 4 , wherein said composition has an iron content of 1% to 20% (weight/vol), expressed in relation to the total volume of the composition.

7. The composition of claim 4 , wherein said composition has an iron content of 5% (weight/vol), expressed in relation to the total volume of the composition.

8. A method for treating an iron deficiency condition comprising administering to a subject in need thereof a pharmaceutically effective amount of the composition of claim 4 .

9. The method of claim 8 , wherein said iron deficiency condition is iron deficiency anaemia.

10. The method of claim 8 , wherein said composition is administered intravenously.

11. The method of claim 8 , wherein said composition is administered via injection.

12. The method of claim 8 , wherein said composition is administered via infusion.

13. The method of claim 8 , wherein said composition is administered in the form of a single dose.

14. The method of claim 13 , wherein said single dose comprises from 500 to 1000 mg of iron.

15. The method of claim 14 , wherein said single dose is applied during the course of one hour.

16. The method of claim 8 , wherein the subject is a human.

17. The method of claim 14 , wherein the subject is a human.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 19, 2021
From: GEISSER, PETER; PHILIPP, ERIK; RICHLE, WALTER
To: VIFOR (INTERNATIONAL) AG
Reel/Frame 058168/0293 →
Priority Claims (1)
DE 10249552.1 · Oct 23, 2002 · national
Continuity (5)
Division 13835400 · Mar 15, 2013
Continuation 13556733 · Jul 24, 2012
Continuation 12581212 · Oct 19, 2009
Division 10531895
Related Publication 20190263939A1 · Aug 29, 2019