Claims for Patent: 8,492,438

Summary for Patent: 8,492,438

Title:	Treatment skin disorders
Abstract:	Disclosed are a composition and a method for treating skin disorders, including rosacea, pityriasis rosea, erythema, rhinophyma, and rosacea-associated disorders including pimples, papules, pustules, and telangiectasia.
Inventor(s):	Chung; Yih-Lin (Taipei, TW), Pui; Nam-Mew (Taipei, TW), Chang; Wei-Wei (Boston, MA)
Assignee:	Asan Laboratories Company (Cayman), Limited (Taipei, TW)
Application Number:	13/021,063
Patent Claims:	1. A method for treating a skin disorder, comprising administering to a subject in need thereof a composition containing an effective amount of a histone hyperacetylating agent or a pharmaceutically acceptable salt thereof, and a cosmetically or pharmaceutically acceptable carrier, wherein the skin disorder is selected from the group consisting of rosacea, pityriasis rosea, erythema, rhinophyma, and a rosacea-associated disorder that is pimple, papule, pustule, or telangiectasia, and the histone hyperacetylating agent is selected from the group consisting of trichostatin A, trichostatin C, oxamflatin, trapoxin A, FR901228, apicidin, HC-Toxin, WF27082, chlamydocin, salicylihydroxamic acid, suberoylanilide hydroxamic acid, azelaic bishydroxamic acid, azelaic-1-hydroxamate-9-an-ilide, M-carboxycinnamic acid bishydroxamide, 6-(3-chlorophenylureido) carpoic hydroxamic acid, MW2796, MW2996, sodium butyrate, arginine butyrate, isovalerate, valerate, 4-phenylbutyrate, propionate, butyramide, isobutyramide, phenylacetate, 3-bromopropionate, valproic acid, valproate, tributyrin, MS-27-275 or a 3'-amino derivative thereof, depudecin, and scriptaid. 2. The method of claim 1, wherein the composition is a topical composition. 3. The method of claim 2, wherein the histone hyperacetylating agent is trichostatin A or trichostatin C. 4. The method of claim 2, wherein the histone hyperacetylating agent is oxamflatin, trapoxin A, FR901228, apicidin, HC-Toxin, WF27082, or chlamydocin. 5. The method of claim 2, wherein the histone hyperacetylating agent is salicylihydroxamic acid, suberoylanilide hydroxamic acid, or azelaic bishydroxamic acid. 6. The method of claim 2, wherein the histone hyperacetylating agent is azelaic-1-hydroxamate-9-an-ilide, M-carboxycinnamic acid bishydroxamide, 6-(3-chlorophenylureido) carpoic hydroxamic acid, MW2796, or MW2996. 7. The method of claim 2, wherein the histone hyperacetylating agent is sodium butyrate, arginine butyrate, isovalerate, valerate, 4-phenylbutyrate, propionate, butyramide, isobutyramide, phenylacetate, 3-bromopropionate, valproic acid, valproate, or tributyrin. 8. The method of claim 2, wherein the histone hyperacetylating agent is MS-27-275 or a 3'-amino derivative thereof. 9. The method of claim 2, wherein the histone hyperacetylating agent is depudecin or scriptaid. 10. The method of claim 2, wherein the composition is a cream, an ointment, a gel, a paste, a powder, an aqueous solution, a spray, a suspension, a dispersion, a salve, a lotion, a patch, a suppository, a liposome formulation, a mouth wash, an enema, an eye drop, an ear drop, a microcapsule formulation, or a nanocapsule formulation. 11. The method of claim 1, wherein the method further comprises administering to the subject a second agent that is a cytokine, a cytokine antagonist, an interleukin, an interleukin antagonist, a growth factor, an angiogenic agent, an anti-histamine, an anti-fibrogenic agent, a vasoactive agent, an antibody, a conjugated antibody, an adenosine receptor agonist, a peroxisome proliferating activator receptor agonist, an anticholinergics, a non-steroid anti-inflammation drug, a steroid, an anti-oxidant agent, a vitamin, a leukotriene modifier, a mast cell inhibitor, an anti-IgE antibody, lidocaine, epinephrine, a selective serotonin reuptake inhibitor, a 5-hydroxytryptamine receptor antagonist, an antibiotics, a calcineurin inhibitor, an amino acid, a matrix metalloproteinase inhibitor, a DNA methylation inhibitor, collagenase, clostridium histolyticum, or combinations thereof. 12. The method of claim 11, wherein the composition and the second agent are topically administered simultaneously or separately. 13. The method of claim 1, wherein the skin disorder is rosacea. 14. The method of claim 13, wherein the composition is a topical composition. 15. The method of claim 14, wherein the histone hyperacetylating agent is sodium butyrate, arginine butyrate, isovalerate, valerate, 4-phenylbutyrate, propionate, butyramide, isobutyramide, phenylacetate, 3-bromopropionate, valproic acid, valproate, or tributyrin. 16. The method of claim 15, wherein the histone hyperacetylating agent is sodium 4-phenylbutyrate. 17. The method of claim 1, wherein the skin disorder is pityriasis rosea. 18. The method of claim 1, wherein the skin disorder is erythema. 19. The method of claim 1, wherein the skin disorder is rhinophyma.

Details for Patent 8,492,438

Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Smith & Nephew, Inc.	SANTYL	collagenase	Ointment	101995	06/04/1965		2022-04-26
Jubilant Hollisterstier Llc	N/A	positive skin test control-histamine	Injection	103891	03/13/1924		2022-04-26
Auxilium Pharmaceuticals, Inc.	XIAFLEX	collagenase clostridium histolyticum	For Injection	125338	02/02/2010		2022-04-26