Method for alleviating skin irritation by formulations containing superoxide dismutase

• US 4,695,456 A
• Filed: 10/31/1984
• Issued: 09/22/1987
• Est. Priority Date: 10/31/1984
• Status: Expired due to Fees

• Current Assignee: Centerchem Incorporated, Pentapharm Limited Engelgasse
• Original Assignee: Centerchem Incorporated, Pentapharm AG (DSM-Firmenich AG)
• Inventors: Wilder, Martin S.
• Primary Examiner(s): Rosen, Sam
• Application Number:
  US06/666,677
• Time in Patent Office: 1,056 Days
• Field of Search: 424/94
• US Class Current: 424/94.5
• CPC Class Codes: A61K 2800/75 Anti-irritant
• CPC Class Codes: A61K 38/446 Superoxide dismutase (1.15)
• CPC Class Codes: A61K 8/66 Enzymes
• CPC Class Codes: A61Q 17/00 Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin

Abstract

This invention discloses use of superoxide dismutase (SOD) as an agent for the protection of the skin against inflammatory reactions associated with chemical irritation and acne. Topical application of SOD in a formulation attenuates dermal injury associated with the induction of reactive oxygen species by a wide variety of chemical irritants, associated with inflammation, and associated with acne.

Claims

1. A method for the alleviation of dermal chemical irritation, dermal chemical inflammation or acne of the skin of a human, comprising applying at an area concentration of at least about 0.002 ml or 2 mg per square cm, a topical formulation containing a non-toxic, non-allergenic carrier and at least about 0.026 weight percent relative to the total weight of the formulation, of purified superoxide dismutase having an activity of at least about 3800 C.I.U./mg or an extract having an equivalent activity thereof, to the skin of said human having chemical irritation, inflammation or acne of the skin.

2. A method according to claim 1 wherein the skin of said human is affected by a chemical irritant.

3. A method according to claim 2 wherein the skin of said human is inflammed.

4. A method according to claim 1 wherein the skin of said patient is affected by acne.

5. A method according to claim 1 wherein said carrier is an aqueous gel or an aqueous solution.

6. A method according to claim 1 wherein said carrier is an oil in water or a water in oil emulsion.

7. A method according to claim 1 wherein said carrier is a dermatologically or cosmetically used water containing vehicle.

8. A method according to claim 1 wherein said carrier comprises about 50 to 100 weight % water, about 0 to 20 weight % polyol, about 0 to 30 weight % fatty acid ester and about 0 to 30 weight % oil or paraffin base and about 0 to 20 w % of an ionic or nonionic emulsifier, said weight percentages being relative to the total weight of the formulation.

12. A method according to claim 1 wherein the topical formulation is a dermatological or cosmetic skin creme or lotion.

9. A method for the alleviation of dermal chemical irritation, dermal chemical inflammation or acne of the skin of a human, comprising applying at an area concentration of at least about 0.002 ml or 2 mg per square cm, a topical formulation containing a non-toxic, non-allergenic carrier and an amount of superoxide dismutase (SOD) sufficient to deliver at least abvout 1 CIU of SOD per square cm.

10. A method according to claim 9 wherin the amount of SOD is calculated to deliver at least about 2.5 CIU of SOD per square cm.

11. A method according to claim 9 wherein the amount of SOD is calculated to deliver at least about 10 to about 1000 CIU of SOD per square cm.

13. A method according to claim 9 wherein the topical formulation is a dermatological or cosmetic skin creme or lotion.

14. A method for the alleviation of dermal chemical irritation, dermal chemical inflammation or acne of the skin of an animal, comprising applying at an area concentration of at least about 0.002 ml or 2 mg per square cm, a topical formulation containing a non-toxic, non-allergenic carrier and at least about 0.026 weight percent relative to the total weight of the fomulation, of purified superoxide dismutase having an activity of at least about 3800 C.I.U./mg or an extract having an equivalent activity thereof, to the skin of said animal having chemical irritation, inflammation or acne of the skin.

15. A method according to claim 14 wherein the skin of said animal is affected by a chemical irritant.

16. A method according to claim 15 wherein the skin of said animal is inflammed.

17. A method according to claim 14 wherein the skin of said patient is affected by acne.

18. A method according to claim 14 wherein said carrier is an aqueous gel or an aqueous solution.

19. A method according to claim 14 wherein said carrier is an oil in water or a water in oil emulsion.

20. A method according to claim 14 wherein said carrier is a dermatologically or cosmetically used water containing vehicle.

21. A method according to claim 14 wherein said carrier comprises about 50 to 100 weight % water, about 0 to 20 weight % polyol, about 0 to 30 weight % fatty acid ester and about 0 to 30 weight % oil or paraffin base and about 0 to 20 weight % of an ionic or nonionic emulsifier, said weight percentages being relative to the total weight of the formulation.

22. A method for the alleviation of dermal chemical irritation, dermal chemical inflammation or acne of the skin of an animal, comprising applying at an area concentration of at least about 0.002 ml or 2 mg per square cm, a topical formulation containing a non-toxic, non-allergenic carrier and an amount of superoxide dismutase (SOD) sufficient to deliver at least about 1

CIU of SOD per square cm.

23. A method according to claim 22 wherein the amount of SOD is calculated to deliver at least about 2.5 CIU of SOD per square cm.

24. A method according to claim 22 wherein the amount of SOD is calcuated to deliver at least about 10 to about 1000 CIU of SOD per square cm.