US4877805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for treatment of sundamaged human skin with retinoids
Assignee: Individual
•
Filing: 1988-06-03
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Granted: 1989-10-31
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Expires: 2008-06-03
Abstract
Abstract Various effects of photoaging or sundamage of skin including impairment of differentiation of epidermal epithelial cells and loss of collagen fibers, abnormal changes in elastic fibers and deterioration of small blood vessels in the dermis of the skin are retarded by applying topically to the epidermis in a maintenance therapy program effective amounts of retinoids including retinoid derivatives and stereoisomers thereof such that epithelial growths are substantially reduced and prevented and the skin substantially regains and maintains its firmness, turgor and elasticity. Moreover, with persistent treatment dermal blood cells and vessels increase and the epidermis and dermis thicken, resulting in improved ability of the skin to sense, resist and recover from irritation or injury. Further, hyperpigmentation, lines and wrinkles due to aging are reduced and prevented. The treatment is particularly useful for human facial skin and preferably applied in amounts insufficient to cause excessive irritation.
Inventors
- 👤 Albert M. Kligman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:34
CPC Classifications
A; A61; A61Q; A61Q19/00; A61Q19/004; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/67; A61K8/671; A61Q19/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
A method for retarding and reversing the loss of collagen fibers, abnormal changes in elastic fibers, and deterioration of small blood vessels in sundamaged human skin, comprising applying topically to the surface of the skin a composition comprising effective amounts of a retinoid in a nontoxic, dermatologically acceptable vehicle in a program of maintenance therapy, whereby the skin substantially regains and maintains its firmness, turgor and elasticity during said therapy, said composition and amounts of retinoid therein being selected so as to provide a dose for application which is insufficient to cause excessive irritation.
Claim 2
Independent Claim
94 words
A method for retarding and reversing the loss of collagen fibers, abnormal changes in elastic fibers, and deterioration of small blood vessels in sundamaged human skin, comprising applying topically to the surface of the skin a composition comprising effective amounts of a retinoid in a nontoxic, dermatologically acceptable vehicle in a program of maintenance therapy, whereby the skin substantially regains and maintains its firmness, turgor and elasticity during said therapy, said composition and amounts of retinoid therein being selected so as to provide a dose for application which is insufficient to cause excessive irritation.
Claim 3
Dependent Claim
24 words
A method according to claim 1 wherein said retinoid is selected from the group consisting of retinoic acids, retinoic acid derivatives and stereoisomers thereof.
Claim 4
Dependent Claim
28 words
A method according to claim 2 wherein said retinoic acid, retinoic acid derivatives is selected from the group consisting of 13-cis-retinoic acid, 13-cis-retinoic acid derivatives and stereoisomers thereof.
Claim 5
Dependent Claim
25 words
A method according to claim 1 wherein said retinoid is selected from the group consisting of (E)-4-[4-methyl-6-(2,6,6-trimethyl-1-cyclohexen-1-yl)-] benzoic acid; 4-[(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)ethylnyl]-benzoic acid; and (E)-4-[2-(5,6,7,8-tetrahydro-7-hydroxy-5,5,8,8-tetramethyl-2-naphthalenyl-1-propenyl] benzyl alcohol.
Claim 6
Dependent Claim
54 words
A method according to claim 1 wherein said retinoid is selected from the group consisting of 13-cis-retinoic acid; (all-E)-9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl-2,4,6,8-nonatetraenoic acid ethyl ester; (all-E)-9-(4-methoxy2,3,6,-trimethylphenyl)-3,7-dimethyl-2,4,6,8,-nonatetraenoic acid; N-ethyl-9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl2,4,6,8-nonatetraenamide; (E,E)-9-(2,6-dichloro-4-methoxy-3-methylphenyl)-3,7-dimethyl-2,4,6,8-nonatetraenoic acid ethyl ester; 7,8-didehydroretinoic acid; (E,E)-4-[2-methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-1,3-butadienyl]benzoic acid; (all-E)-3,7-dimethyl-(3-thienyl)-2,4,6,8-nonatetraenoic acid; (E,E,E)-3-methyl-7-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-2,4,6-octatrienoic acid; (E)-6-[2-(2,6,6-trimethyl-1-cyclohexen-1-yl)ethenyl]-2-naphthalenecarboxylic acid; (E,E,E)-7-(2,3-dihydro-1,1,3,3-tetramethyl-lH-inden-5-yl)-3-methyl-2,4,6-octatrienoic acid; (E)-4-[2-(2,3-dihydro-1,1,3,3-tetramethyl-lH-inden-5-yl)-1-propenyl]benzoic acid; TTNPB (E)-4-[2-5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl-1propenyl]benzoic acid; (E)-4-[2-(5,6,7,8-tetrahydro-3-methyl-5,5,8,8-tetramethyl-2-naphthalenyl)-1-propenyl]benzoic acid; (E)-1,2,3,4-tetrahydro-1,1,4,4-tetramethyl-6-(1-methyl-2phenylethenyl) naphthalene; 6-(1,2,3,4-tetrahydro-1,1,4,4-tetra-methyl-6-naphthyl)-2-naphthalene-carboxylic acid; (E)-6-[2-[ 4-(ethylsulfonyl)phenyl]-1-methylethenyl]-1,2,3,4-tetrahydro-1,2,3,4-tetrahydronaphth-7-yl)-1-[4-tetrazol-5-yl)phenyl]-1-propene.
Claim 7
Dependent Claim
13 words
A method according to claim 1 wherein said skin is human facial skin.
Claim 8
Dependent Claim
13 words
A method according to claim 2 wherein said skin is human facial skin.
Claim 9
Dependent Claim
13 words
A method according to claim 3 wherein said skin is human facial skin.
Claim 10
Dependent Claim
13 words
A method according to claim 1 wherein said vehicle is a cream ointment.
Claim 11
Dependent Claim
13 words
A method according to claim 1 wherein said vehicle is an emollient vehicle.
Claim 12
Dependent Claim
11 words
A method according to claim 1 wherein said retinoid is retinol.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-30 | 1993-05-01 | 1993-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-30 | 1997-05-01 | 1997-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-30 | 2001-05-01 | 2001-10-31 | $7700.00 | Window Closed / Lapsed |