US4276284A
Expired / Lapsed
US
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Prevention of collagenase induced disease by treatment with collagenase inhibitors
Assignee: Individual
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Filing: 1975-12-10
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Granted: 1981-06-30
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Expires: 1995-12-10
Abstract
Abstract Certain ulcers and disease conditions resulting in tissue destruction, such as those found near the cornea of the eye, and those found in the stomach, and damaged joint tissue of rheumatoid arthritis, have been found to be caused by the enzyme, collagenase. A collagenase inhibitor, such as cysteine, ethylene diamine tetraacetic acid (or sodium ethylene diamine tetraacetate), or combinations of these collagenase inhibitors, are used to treat such ulcers and to inhibit further formation thereof.
Inventors
- 👤 Stuart I. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:53
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; A61K31/715; A61K31/095; A61K31/185; A61K31/19; A61K31/195; A61K38/00; A61K38/16; A61K38/55; A61K9/00; A61K9/0012; A61K9/0048
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
A method for preventing ulceration of corneal tissues when said tissue is afflicted with an ulcerous condition consisting of Stevens-Johnson Syndrome wherein collagen is broken down by collagenase produced by incoming reparative cells at a greater rate than collagen is produced by incoming fibroblasts, which method comprises the steps of applying to the afflicted tissue an amount of a non-toxic collagenase inhibitor effective to reverse the collagen production/destructon balance of said disease state in favor of collagen production and periodically repeating said application step to maintain the collagen production/destruction balance in favor of collagen production until said ulcerous condition is eliminated.
Claim 2
Independent Claim
101 words
A method for preventing ulceration of corneal tissues when said tissue is afflicted with an ulcerous condition consisting of Stevens-Johnson Syndrome wherein collagen is broken down by collagenase produced by incoming reparative cells at a greater rate than collagen is produced by incoming fibroblasts, which method comprises the steps of applying to the afflicted tissue an amount of a non-toxic collagenase inhibitor effective to reverse the collagen production/destructon balance of said disease state in favor of collagen production and periodically repeating said application step to maintain the collagen production/destruction balance in favor of collagen production until said ulcerous condition is eliminated.
Claim 3
Independent Claim
105 words
A method for preventing ulceration of corneal tissues when said tissue is afflicted with an ulcerous condition comprising normal healing post-operative to a corneal transplant operation wherein collagen is broken down by collagenase produced by incoming reparative cells at a greater rate than collagen is produced by incoming fibroblasts, which method comprises the steps of applying to said tissue an amount of a non-toxic collagenase inhibitor effective to reverse the collagen production/destruction balance of said disease state in favor of collagen production and periodically repeating said application step to maintain the collagen production/destruction balance in favor of collagen production until said ulcerous condition is eliminated.
Claim 4
Independent Claim
105 words
A method for preventing ulceration of corneal tissues when said tissue is afflicted with an ulcerous condition comprising normal healing post-operative to a corneal transplant operation wherein collagen is broken down by collagenase produced by incoming reparative cells at a greater rate than collagen is produced by incoming fibroblasts, which method comprises the steps of applying to said tissue an amount of a non-toxic collagenase inhibitor effective to reverse the collagen production/destruction balance of said disease state in favor of collagen production and periodically repeating said application step to maintain the collagen production/destruction balance in favor of collagen production until said ulcerous condition is eliminated.
Claim 5
Independent Claim
98 words
A method for preventing ulceration of gastro-intestinal viscera tissue when said tissue is afflicted with an ulcerous condition wherein collagen is broken down by collagenase produced by incoming reparative cells at a greater rate than collagen is produced by incoming fibroblasts, which method comprises the steps of applying to the afflicted tissue an amount of a non-toxic collagenase inhibitor effective to reverse the collagen production/destruction balance of said disease state in favor of collagen production and periodically repeating said application step to maintain the collagen production/destruction balance in favor of collagen production until said ulcerous condition is eliminated.
Claim 6
Independent Claim
98 words
A method for preventing ulceration of gastro-intestinal viscera tissue when said tissue is afflicted with an ulcerous condition wherein collagen is broken down by collagenase produced by incoming reparative cells at a greater rate than collagen is produced by incoming fibroblasts, which method comprises the steps of applying to the afflicted tissue an amount of a non-toxic collagenase inhibitor effective to reverse the collagen production/destruction balance of said disease state in favor of collagen production and periodically repeating said application step to maintain the collagen production/destruction balance in favor of collagen production until said ulcerous condition is eliminated.
Claim 7
Dependent Claim
24 words
The method of claim 3, wherein said application step comprises orally ingesting a composition comprising collagenase inhibitor in combination with a pharmaceutically acceptable carrier.
Claim 8
Dependent Claim
22 words
The method of claim 4, wherein said composition is orally ingested every 2 hours until healing of the ulcerous condition is achieved.
Claim 9
Independent Claim
112 words
A method for preventing ulceration of joint mucosa tissues when said tissue is afflicted with an ulcerous condition wherein collagen is broken down by collagenase produced by incoming reparative cells at a greater rate than collagen is produced by incoming fibroblasts, which method comprises the steps of directly injecting into the affected joint from about 1 to 5 cc of a composition comprising a collagenase inhibitor in combination with a pharmaceutically acceptable carrier effective to reverse the collagen production/destruction balance of said disease state in favor of collagen production and periodically repeating said injection step to maintain the collagen production/destruction balance in favor of collagen production until said ulcerous condition is eliminated.
Claim 10
Independent Claim
112 words
A method for preventing ulceration of joint mucosa tissues when said tissue is afflicted with an ulcerous condition wherein collagen is broken down by collagenase produced by incoming reparative cells at a greater rate than collagen is produced by incoming fibroblasts, which method comprises the steps of directly injecting into the affected joint from about 1 to 5 cc of a composition comprising a collagenase inhibitor in combination with a pharmaceutically acceptable carrier effective to reverse the collagen production/destruction balance of said disease state in favor of collagen production and periodically repeating said injection step to maintain the collagen production/destruction balance in favor of collagen production until said ulcerous condition is eliminated.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-29 | 1984-12-29 | 1985-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-29 | 1988-12-29 | 1989-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-29 | 1992-12-29 | 1993-06-30 | $7700.00 | Window Closed / Lapsed |