Claims for Patent: 4,645,668

Summary for Patent: 4,645,668

Title:	Method for the prevention and treatment of scars with enzymes
Abstract:	The method for preventing and for treating mammalian cicatrices such as keloids, acne scars, hypertrophic scars, wrinkles, cellulite and neoplastic fibrosis which comprises intra-dermal injection of effective amounts of a pharmacologically suitable solution of the enzymes collagenase, elastase, papain, plasminogen activator, plasmin, mast cell protease or lysosomal hydrolase, individually, and one or more of such enzymes in combination with the enzyme hyaluronidase.
Inventor(s):	Pinnell; Sheldon R. (Durham, NC)
Assignee:	Biospecifics, NV (Curacao, AN)
Application Number:	06/716,742
Patent Claims:	1. A method for the dissolution of mammalian cicatrices which comprises administering an effective amount of an enzyme selected from the group consisting of elastase, papain, plasminogen activator, plasmin, mast cell protease and lysosomol hydrolase directly into the lesion. 2. The method of claim 1 wherein the elastase is electrophoretically purified porcine pancreatic elastase. 3. The method of claim 1 wherein the elastase is human neutrophilic polymorphonuclear leukocyte elastase purified by affinity chromatography. 4. The method of claim 1 wherein the elastases is purified from the conditioned medium of thioglycollate-elicited mouse macrophages. 5. The method of claim 1 wherein the plasmin is bovine or human plasmin prepared by activating plasminogen with urokinase. 6. The method of claim 1 wherein the mast cell protease is the highly purified neutral extract from the media of cultured metastatic tumor cells. 7. A method for the dissolution of mammalian cicatrices which comprises administering an effective amount of an enzyme selected from the group consisting of elastase, papain, plasminogen activator, plasmin, mast cell protease and lysosomal hydrolase in combination with an effective amount of the enzyme collagenase directly into the lesion. 8. A method for the dissolution of mammalian cicatrices which comprises administering an effective amount of an enzyme selected from the group consisting of elastase, papain, plasminogen activator, plasmin, mast cell protease and lysosomal hydrolase in combination with an effective amount of the enzyme hyaluronidase directly into the lesion. 9. A method for the prevention of mammalian cicatrices which comprises administering an effective amount of an enzyme selected from the group consisting of elastase, papain, plasminogen activator, plasmin, mast cell protease and lysosomal hydrolase in combination with an effective amount of the enzyme collagenase directly into the affected area during the healing process. 10. A method for the prevention of mammalian cicatrices which comprises administering an effective amount of an enzyme selected from the group consisting of elastase, papain, plasminogen activator, plasmin, mast cell protease and lysosomal hydrolase in combination with an effective amount of the enzyme hyaluronidase directly into the affected area during the healing process.

Details for Patent 4,645,668

Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Bausch & Lomb Incorporated	VITRASE	hyaluronidase	Injection	021640	05/05/2004		2004-02-24
Bausch & Lomb Incorporated	VITRASE	hyaluronidase	Injection	021640	12/02/2004		2004-02-24
Amphastar Pharmaceuticals, Inc.	AMPHADASE	hyaluronidase	Injection	021665	10/26/2004		2004-02-24
Akorn, Inc.	HYDASE	hyaluronidase	Injection	021716	10/25/2005		2004-02-24