IP Library Granted Patent US 9,855,211
Granted Patent B2
US 9,855,211 · App. 14/191,958 · Granted Jan 2, 2018

Topical compositions and methods of using the same

Inventors: Ryan Doxey (Raleigh, NC); Adam Sabouni (Cary, NC); Eleftherios Kougoulos (Morrisville, NC); Nathan Stasko (Durham, NC)
Assignee: Novan, Inc.
A61K9/0014A61K9/06A61K33/00A61K47/10A61K47/12A61K47/32A61K47/6923
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Quick Facts
Patent No.
US 9,855,211
App. No.
14/191,958
Granted
Jan 2, 2018
Kind
B2
Abstract

The present invention relates generally to topical compositions and methods of using the same.

Claims (48)

1. A composition comprising:

an aqueous composition in an admixture with an anhydrous composition in a ratio of the aqueous composition to the anhydrous composition of about 3:1 or less;

wherein the aqueous composition is a buffered hydrogel and comprises:

a first viscosity increasing agent in an amount of 0.6% to 5% by weight of the aqueous composition, wherein the first viscosity increasing agent is a cellulose ether or a carboxypolymethylene;

at least one polyhydric alcohol in an amount of 1% to 30% by weight of the aqueous composition;

at least one buffering agent;

water; and

optionally at least one preservative;

wherein the anhydrous composition is an alcohol gel and comprises:

a second viscosity increasing agent in an amount of 0.5% to 30% by weight of the anhydrous composition;

at least one alcohol in an amount of 50% to 90% by weight of the anhydrous composition;

at least one humectant in an amount of 2% to 20% by weight of the anhydrous composition; and

diazeniumdiolate modified polysiloxane macromolecules comprising a co-condensed siloxane network.

2. The composition of claim 1 , wherein the aqueous composition is in the admixture with the anhydrous composition in a ratio of about 3:1.

3. The composition of claim 1 , further comprising at least one water repellant.

4. The composition of claim 1 , further comprising at least one neutralizing agent.

5. The composition of claim 1 , wherein the composition has a pH of about 3 to about 8 when topically applied to skin of a subject.

6. The composition of claim 1 , wherein the composition is cosmetically elegant.

7. The composition of claim 1 , wherein the diazeniumdiolate modified polysiloxane macromolecules release nitric oxide in an amount of at least 50% over a period of time of about 3 hours or less after topical application of the composition to skin of a subject.

8. A kit comprising:

a buffered hydrogel having a pH in a range of 3 to 6.5 and comprising:

at least one polyhydric alcohol present in an amount of 1% to 30% by weight of the hydrogel;

a first viscosity increasing agent present in an amount of 0.6% to 5% by weight of the hydrogel, wherein the first viscosity increasing agent is a cellulose ether or a carboxypolymethylene;

at least one buffering agent; and

water; and

an anhydrous alcohol gel comprising:

diazeniumdiolate modified polysiloxane macromolecules comprising a co-condensed siloxane network;

a second viscosity increasing agent present in the anhydrous alcohol gel in an amount of 0.5% to 30% by weight of the anhydrous alcohol gel;

at least one alcohol present in the anhydrous alcohol gel in an amount of about 50% to about 90% by weight of the anhydrous alcohol gel; and

at least one humectant present in the anhydrous alcohol gel in an amount of about 2% to about 20% by weight of the anhydrous alcohol gel.

9. The kit of claim 8 , wherein the buffered hydrogel and the anhydrous alcohol gel are separately stored.

10. A method of increasing the release of nitric oxide from the anhydrous alcohol gel of claim 8 comprising:

contacting the anhydrous alcohol gel with the buffered hydrogel of claim 8 to provide a combined composition; and

applying the combined composition to the skin of a subject.

11. The composition of claim 1 , wherein the aqueous composition is in the admixture with the anhydrous composition in a ratio of about 1:1.

12. The composition of claim 1 , wherein the first viscosity increasing agent comprises a carboxypolymethylene, the at least one polyhydric alcohol is glycerin, the at least one buffering agent is lactic acid, and water is present in an amount of about 70% to about 99% by weight of the aqueous composition.

13. The composition of claim 1 , wherein the first viscosity increasing agent comprises a carboxymethyl cellulose, the at least one polyhydric alcohol is glycerin, and the at least one buffering agent comprises potassium phosphate.

14. The composition of claim 1 , wherein the second viscosity increasing agent is hydroxypropyl cellulose, the at least one alcohol is ethyl alcohol or isopropyl alcohol, and the at least one humectant is hexylene glycol.

15. The composition of claim 1 , wherein the at least one alcohol is isopropyl alcohol and the composition further comprises cyclomethicone.

16. The composition of claim 14 , wherein the first viscosity increasing agent comprises a carboxypolymethylene, the at least one polyhydric alcohol is glycerin, and the at least one buffering agent is lactic acid.

17. The composition of claim 14 , wherein the first viscosity increasing agent comprises a carboxymethyl cellulose, the at least one polyhydric alcohol is glycerin, and the at least one buffering agent comprises potassium phosphate.

18. The composition of claim 1 , wherein the buffered hydrogel has a pH in a range of about 3 to about 6.5.

19. The composition of claim 1 , wherein the composition comprising the aqueous composition and the anhydrous composition is buffered to a pH of about 3 to about 8 for at least 5 minutes.

20. The composition of claim 1 , wherein the composition comprising the aqueous composition and the anhydrous composition is buffered to a pH of about 3 to about 8 for at least 60 minutes.

21. The kit of claim 8 , wherein the second viscosity increasing agent is hydroxypropyl cellulose, the at least one alcohol is ethyl alcohol or isopropyl alcohol, and the at least one humectant is hexylene glycol.

22. The kit of claim 21 , wherein the at least one alcohol is isopropyl alcohol and the anhydrous alcohol gel further comprises cyclomethicone.

23. The kit of claim 8 , wherein the first viscosity increasing agent comprises a carboxypolymethylene, the at least one polyhydric alcohol is glycerin, and the at least one buffering agent is lactic acid.

24. The kit of claim 8 , wherein the first viscosity increasing agent comprises a carboxymethyl cellulose, the at least one polyhydric alcohol is glycerin, and the at least one buffering agent comprises potassium phosphate.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 30, 2025
From: LNHC, INC.
To: LIGAND PHARMACEUTICALS INCORPORATED
Reel/Frame 071481/0040 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 18, 2024
From: NOVAN, INC.
To: LNHC, INC.
Reel/Frame 066350/0942 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2014
From: DOXEY, RYAN; SABOUNI, ADAM; KOUGOULOS, ELEFTHERIOS; STASKO, NATHAN
To: NOVAN, INC.
Reel/Frame 032528/0408 →
Continuity (2)
Provisional Application 61770615 · Feb 28, 2013
Related Publication 20140242023A1 · Aug 28, 2014