IP Library › Granted Patent US 8,436,045
Granted Patent B2
US 8,436,045 · App. 12/946,742 · Granted May 7, 2013

Use of 2,5-dihydroxybenzene derivatives for treating actinic keratosis

Inventor: Pedro Cuevas Sánchez (Madrid, ES)
Assignee: AmDerma Pharmaceuticals, LLC
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Quick Facts
Patent No.
US 8,436,045
App. No.
12/946,742
Granted
May 7, 2013
Kind
B2
Abstract

The present invention relates to the use of a 2,5-dihydroxybenzene derivative represented by Formula (I) or a pharmaceutically acceptable salt, solvate, isomer, or prodrug thereof for the therapeutic and/or prophylactic treatment of, inter alia, actinic keratosis.

Claims (20)

1. A method for the treatment of actinic keratosis, comprising topically administering to a subject in need thereof, an effective amount of 2,5-dihydroxybenzenesulfonic acid (Dobesilate) or a pharmaceutically acceptable salt.

2. The method of claim 1 , wherein the salt is selected from the group consisting of: calcium 2,5-dihydroxybenzenesulfonate (calcium Dobesilate); potassium 2,5-dihydroxybenzenesulfonate (potassium Dobesilate); magnesium 2,5-dihydroxybenzenesulfonate (magnesium Dobesilate); diethylamine 2,5-dihydroxybenzenesulfonate (Ethamsylate).

3. The method of claim 2 , wherein the salt is calcium 2,5-dihydroxybenzenesulfonate (calcium Dobesilate).

4. The method of claim 2 , wherein the salt is potassium 2,5-dihydroxybenzenesulfonate (potassium Dobesilate).

5. The method of claim 1 , wherein the actinic keratosis is selected from the group consisting of: hypertrophic, atrophic, bowenoid, and acantholythic keratosis.

6. The method of claim 1 , wherein the compound is administered at least once per week.

7. The method of claim 6 , wherein the compound is administered at least once per day.

8. The method of claim 7 , wherein the compound is administered at least twice per day.

9. The method of claim 1 , wherein the compound is present in a pharmaceutical composition in an amount of at least about 1% w/w.

10. The method of claim 9 , wherein the compound is present in a pharmaceutical composition in an amount of at least about 2.5% w/w.

11. The method of claim 10 , wherein the compound is present in a pharmaceutical composition in an amount of at least about 5% w/w.

12. The method of claim 11 , wherein the compound is present in a pharmaceutical composition in an amount of at least about 10% w/w.

13. The method of claim 12 , wherein the compound is present in a pharmaceutical composition in an amount of at least about 15% w/w.

14. The method of claim 1 , wherein the compound is administered over a period of at least about one week.

15. The method of claim 14 , wherein the compound is administered over a period of at least about four weeks.

16. The method of claim 4 , wherein the potassium 2,5-dihydroxybenzenesulfonate (potassium Dobesilate) is administered as a cream at a concentration of at least about 2.5% w/w.

17. The method of claim 16 , wherein the potassium 2,5-dihydroxybenzenesulfonate (potassium Dobesilate) is administered as a cream at a concentration of at least about 5% w/w.

18. The method of claim 17 , wherein the cream further comprises one or more emollients and one or more emulsifiers.

19. The method of claim 16 , wherein the potassium 2,5-dihydroxybenzenesulfonate (potassium Dobesilate) is administered at least twice per day over a period of at least four weeks.

20. A method for the treatment of actinic keratosis, comprising topically administering to a subject in need thereof a cream comprising 5% of potassium 2,5-dihydroxybenzenesulfonic acid (potassium Dobesilate) w/w, wherein the cream is administered at least twice per day over a period of at least four weeks.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE THAT AN INVENTOR WAS INADVERTENTLY OMITTED PREVIOUSLY RECORDED ON REEL 034635 FRAME 0017. ASSIGNOR(S) HEREBY CONFIRMS THE INVENTOR, SERAFIN VALVERDE LOPEZ DATE: 06/24/2008 MUST BE ADDED. Recorded Jan 29, 2015
From: SANCHEZ, PEDRO CUEVAS; GARRIDO, ANTONIO ROMERO; GALLEGO, GUILLERMO GIMENEZ; LOPEZ, SERAFIN VALVERDE; PUERTO, ROSA MARIA LOZANO
To: ACTION MEDICINES, S.L.
Reel/Frame 034857/0689 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 5, 2015
From: SANCHEZ, PEDRO CUEVAS; GARRIDO, ANTONIO ROMERO; GALLEGO, GUILLERMO GIMENEZ; PUERTO, ROSA MARIA LOZANO
To: ACTION MEDICINES, S.L.
Reel/Frame 034635/0017 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2011
From: ACTION MEDICINES, S.L.
To: AMDERMA PHARMACEUTICALS, LLC
Reel/Frame 027254/0391 →
Priority Claims (3)
ES 200400371 · Feb 17, 2004 · national
ES 200602219 · Aug 16, 2006 · national
ES 200701857 · Jul 2, 2007 · national
Continuity (4)
Continuation 11839508 · Aug 15, 2007
Continuation In Part 11506469 · Aug 16, 2006
Continuation In Part 10588166
Related Publication 20110257264A1 · Oct 20, 2011