IP Library Granted Patent US 9,603,966
Granted Patent B2
US 9,603,966 · App. 15/016,191 · Granted Mar 28, 2017

Compositions for treating biofilms and methods for using same

Inventors: George Rodeheaver (Charlottesville, VA); Adam Katz (Charlottsville, VA)
Assignee: PluroGen Therapeutics, Inc.
A61L26/0019A01N43/54A01N59/16A61F13/00063A61F13/0269A61K9/0014A61K31/4178A61K31/505A61K31/555A61K31/635A61K31/77A61K47/10A61K47/18A61L15/44A61L15/46A61L15/48A61L26/0066A61F2013/00638A61L2300/104A61L2300/204A61L2300/404A61L2300/406
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Quick Facts
Patent No.
US 9,603,966
App. No.
15/016,191
Filed
Feb 4, 2016
Granted
Mar 28, 2017
Kind
B2
Art Unit
1619
USPC
424/445
Abstract

Compositions containing a surface active agent and a sub-lethal amount of an antimicrobial agent and methods for using such compositions are provided herein.

Claims (26)

1. A dressing for treating or preventing a microbial biofilm comprising:

a composition layer comprising about 30 w/w % to about 80 w/w % surface active agent selected from the group consisting of poloxamer 127, poloxamer 188, poloxamer 237, poloxamer 335, poloxamer 407, and combinations thereof and about 1% or less by weight of the composition of an antimicrobial agent; and

a dressing material supporting the composition layer.

2. The dressing of claim 1 , wherein the antimicrobial agent is selected from the group consisting of an antibacterial, an antifungal, an antiviral, and combinations thereof.

3. The dressing of claim 1 , wherein the antimicrobial agent is selected from the group consisting of furaltadone, furazolium chloride, nifuradene, nifuratel, nifurfoline, nifurpirinol, nifurprazine, nifurtoinol, nitrofurantoin, furazolidone, 2-(methoxymethyl)-5-nitrofuran, nidroxyzone, nifuroxime, nifurazide, nitrofurazone, nystatin, polymyxin, silver sulfadiazine, nanocrystalline silver, ionic silver, silver salts, iodine, benzalkonium chloride, alcohol, hydrogen peroxide, chlorhexidine, honey, and combinations thereof.

4. The dressing of claim 1 , wherein the antimicrobial agent is silver sulfadiazine.

5. The dressing of claim 1 , wherein the surface active agent is poloxamer 188.

6. The dressing of claim 1 , wherein the composition layer impregnates the dressing material.

7. A method for treating a wound comprising:

applying a dressing to the wound, the dressing comprising:

a composition layer comprising about 30 w/w % to about 80 w/w % surface active agent selected from the group consisting of poloxamer 127, poloxamer 188, poloxamer 237, poloxamer 335, poloxamer 407, and combinations thereof and about 1% or less by weight of the composition of an antimicrobial agent; and

a dressing material supporting the composition layer.

8. The method of claim 7 , wherein the antimicrobial agent is selected from the group consisting of an antibacterial, an antifungal, an antiviral or a combination thereof.

9. The method of claim 7 , wherein the antimicrobial agent is selected from the group consisting of furaltadone, furazolium chloride, nifuradene, nifuratel, nifurfoline, nifurpirinol, nifurprazine, nifurtoinol, nitrofurantoin, furazolidone, 2-(methoxymethyl)-5-nitrofuran, nidroxyzone, nifuroxime, nifurazide, nitrofurazone, nystatin, polymyxin, silver sulfadiazine, nanocrystalline silver, ionic silver, silver salts, iodine, benzalkonium chloride, alcohol, hydrogen peroxide, chlorhexidine, honey and combinations thereof.

10. The method of claim 7 , wherein the antimicrobial agent is silver sulfadiazine.

11. The method of claim 7 , wherein the surface active agent is poloxamer 188.

12. The method of claim 7 , wherein the composition layer impregnates the dressing material.

13. A method for treating a wound comprising:

contacting the wound with a dressing comprising:

a composition layer comprising about 30 w/w % to about 80 w/w % surface active agent selected from the group consisting of poloxamer 127, poloxamer 188, poloxamer 237, poloxamer 335, poloxamer 407, and combinations thereof and about 1% or less by weight of the composition of an antimicrobial agent; and

a dressing material supporting the composition layer.

14. The method of claim 13 , wherein the antimicrobial agent is selected from the group consisting of an antibacterial, an antifungal, an antiviral, and combinations thereof.

15. The method of claim 13 , wherein the antimicrobial agent is selected from the group consisting of furaltadone, furazolium chloride, nifuradene, nifuratel, nifurfoline, nifurpirinol, nifurprazine, nifurtoinol, nitrofurantoin, furazolidone, 2-(methoxymethyl)-5-nitrofuran, nidroxyzone, nifuroxime, nifurazide, nitrofurazone, nystatin, polymyxin, silver sulfadiazine, nanocrystalline silver, ionic silver, silver salts, iodine, benzalkonium chloride, alcohol, hydrogen peroxide, chlorhexidine, honey, and combinations thereof.

16. The method of claim 13 , wherein the antimicrobial agent is silver sulfadiazine.

17. The method of claim 13 , wherein the surface active agent is poloxamer 188.

18. The dressing of claim 13 , wherein the composition layer impregnates the dressing material.

Assignments (7)
PATENT SECURITY AGREEMENT Recorded May 28, 2026
From: MEDLINE INDUSTRIES, LP
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 075643/0462 →
PATENT SECURITY AGREEMENT Recorded Jun 20, 2025
From: MEDLINE INDUSTRIES, LP
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 071672/0100 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 3, 2022
From: PLUROGEN THERAPEUTICS, LLC
To: MEDLINE INDUSTRIES, LP
Reel/Frame 059162/0143 →
SECURITY INTEREST Recorded Oct 21, 2021
From: MEDLINE INDUSTRIES, LP
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 057927/0091 →
SECURITY INTEREST Recorded Oct 21, 2021
From: MEDLINE INDUSTRIES, LP
To: BANK OF AMERICA, N.A.
Reel/Frame 058040/0001 →
QUITCLAIM/TRANSFER Recorded Mar 20, 2018
From: PLUROGEN THERAPEUTICS, INC.
To: PLUROGEN THERAPEUTICS, LLC
Reel/Frame 045657/0292 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 15, 2016
From: RODEHEAVER, GEORGE; KATZ, ADAM
To: PLUROGEN THERAPEUTICS, INC.
Reel/Frame 038292/0899 →
Continuity (5)
Continuation 14524332 · Oct 27, 2014
Division 13685444 · Nov 26, 2012
Continuation 12033692 · Feb 19, 2008
Provisional Application 60890535 · Feb 19, 2007
Related Publication 20160151533A1 · Jun 2, 2016