Claims for Patent: 9,050,332

Summary for Patent: 9,050,332

Title:	Enzyme containing composition, process of producing said composition and its use
Abstract:	The present invention relates to a composition comprising at least one biologically active protease and at least one biologically active glycosidase wherein the proteases and the glycosidases are present in an activity ratio of from 1,000,000:1 to 1:1,000,000 and wherein the composition has a total enzyme activity of at least 2 U/ml. Furthermore, the present invention relates to a process of producing such enzyme comprising composition and to processes of removing caries. Moreover, the invention relates to the use of one or more enzyme comprising compositions for producing a treatment agent for removing caries.
Inventor(s):	Haberlein; Ingo (Weilheim, DE), Guggenberger; Rainer (Herrsching, DE), Weinmann; Wolfgang (Weilheim, DE), Kappler; Oliver (Weilheim, DE)
Assignee:	3M Innovative Properties Company (St. Paul, MN)
Application Number:	12/122,027
Patent Claims:	1. Method of treating and removing carious infected dentin from a carious lesion, the method comprising the steps of: applying a dental composition to a site of the carious infected dentin, the composition comprising at least one biologically active protease and having a pH value of about 1 to about 4, wherein the composition is applied on the site of carious infected dentin to be treated in a volume of about 0.001 ml to about 0.5 ml; and allowing the composition to remain in contact with the site of the carious infected dentin for an exposure time in a range of from about 5 seconds to about 5 minutes, to digest at least a portion of the carious infected dentin from the carious lesion; wherein said dental composition comprises: 1 to about 5,000 U/ml solvent collagenase with 1 U corresponding to the conversion of 1 mmol of L-leucine in 5 h at 37.degree. C. and a pH of 7.5 if collagen is used as substrate, 1 to about 45,000 U/ml solvent pepsin with 1 unit corresponding to a .DELTA.E of 0.01 at A280 nm at 37.degree. C. of converted hemoglobin with trichloroacetic acid (TCA), or 10 to about 300 mAnson/ml solvent proteinase K with 1 Anson unit corresponding to 1 .mu.mol Folin-positive amino acid at a pH of 7.5 and 35.degree. C. if hemoglobin is used as substrate. 2. The method according to claim 1 wherein the composition has a viscosity of 10 MPas to 1000 MPas at 25.degree. C. 3. The method according to claim 1 wherein the composition further comprises at least one glycosidase. 4. The method according to claim 1 wherein the composition further comprises at least one rheological additive. 5. The method according to claim 1 wherein the composition comprises at least pepsin and one protease inhibitor. 6. The method according to claim 1 wherein the composition further comprises one or more adjuvants comprising a complexing agent, an enzyme substrate, an enzyme effector, a thickening agent, a preservative agent, a stabilizing agent, or a combination thereof. 7. The method of claim 6 wherein the preservative agent comprises a para hydroxyl benzoic acid ester. 8. The method of claim 7 wherein the para hydroxyl benzoic acid ester comprises a methyl para hydroxyl benzoic ester, a propyl para hydroxyl benzoic acid ester, or a combination thereof. 9. The method according to claim 1 further comprising the step of identifying the carious infected dentin to be treated. 10. The method according to claim 1 further comprising the step of rinsing the treated carious infected dentin with water. 11. The method according to claim 1 wherein the dental composition comprises a first component comprising a protease having its proteolytic activity at a pH value of below 7, water, a buffer system providing for a pH value above the pH value at which the protease is most active, and a second component comprising water, an acid providing for a pH value of less than or equal to the pH value at which the protease is most active; and wherein the method further comprises mixing the first component and the second component to provide the dental composition. 12. The method according to claim 1 wherein the dental composition is applied on the site of carious infected dentin to be treated in two or more treatment steps. 13. The method of claim 1 wherein the composition further comprises one or more preservatives in an amount ranging from 0.001-1 wt.-% based on the weight of the composition. 14. The method of claim 1 wherein the composition further comprises one or more preservatives in an amount ranging from 0.01-0.25 wt.-% based on the weight of the composition.

Details for Patent 9,050,332

Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Smith & Nephew, Inc.	SANTYL	collagenase	Ointment	101995	06/04/1965		2022-08-15