WO1999061047A1 - Compound delivery using rapidly dissolving collagen film - Google Patents

Compound delivery using rapidly dissolving collagen film Download PDF

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Publication number
WO1999061047A1
WO1999061047A1 PCT/US1999/011390 US9911390W WO9961047A1 WO 1999061047 A1 WO1999061047 A1 WO 1999061047A1 US 9911390 W US9911390 W US 9911390W WO 9961047 A1 WO9961047 A1 WO 9961047A1
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Prior art keywords
collagen
compound
film
collagen film
minutes
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PCT/US1999/011390
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French (fr)
Inventor
Dale P. Devore
Richard A. Eiferman
Edwin U. Keates
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Collagenesis, Inc.
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Publication date
Application filed by Collagenesis, Inc. filed Critical Collagenesis, Inc.
Priority to EP99953288A priority Critical patent/EP1079850A4/en
Priority to JP2000550506A priority patent/JP2002516289A/en
Publication of WO1999061047A1 publication Critical patent/WO1999061047A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
    • A61K9/7007—Drug-containing films, membranes or sheets

Definitions

  • the invention relates to rapidly dissolving collagen films, methods of preparation, and the use of these films for rapid compound delivery.
  • the ability to specifically deliver a compound to a particular site in the human body is a desirable ⁇ oal in many areas of medicine.
  • administration of chemotherapeutic agents to a tumor site with minimal exposure to surrounding tissues would dramatically reduce undesirable side effects to the surrounding tissues, or the body as a whole, while facilitating delivery of potent doses to malignant cells.
  • the inhibition of wound healing is beneficial in certain circumstances, for example, following glaucoma filtration surgery (otherwise known as trabeculectomy).
  • the initial stage in the process of wound healing is characterized by the movement of intravascular components, such as plasma and blood proteins, to the extravascular area (Peacock, In: Wound Repair, 491-492, 1984, ed.
  • the present invention provides a method of preparing a rapidly dissolving collagen film which includes a therapeutic compound.
  • the method involves (i) preparing a purified solution of monoreactive-amine modified collagen, e.g., a glutaric anhydride derivatized collagen, (ii) heating the collagen solution to about 35-45 °C for a time sufficient to reduce collagen viscosity, (iii) adding the compound to the heated collagen solution, and iv) casting the solution into thin layers, wherein the solution dries and forms the film.
  • monoreactive-amine modified collagen e.g., a glutaric anhydride derivatized collagen
  • the invention also includes a collagen film prepared by the above described method and a collagen film which rapidly dissolves upon exposure to about 35 °C.
  • the collagen film dissolves within five to ten minutes upon exposure to about 35 °C. More preferably, the collagen film dissolves within two minutes upon exposure to about 35 °C. Most preferably, the collagen film dissolves within one minute or 30 seconds upon exposure to about 35 °C.
  • the therapeutic compound contained within the rapidly dissolving collagen film may be an inhibitor of cell proliferation, e.g., an anti-metabolic antibiotic, anti- metabolite, anti-fibrotic, anti-viral compound, or angiostatic compound.
  • the compound is an anti-metabolic antibiotic, e.g., mitomycin, daunorubicin, mithramycin, bleomycin, or doxorubicin.
  • the therapeutic compound may be an anti-metabolite.
  • useful anti-metabolites include 5-fluorouracil, 5-fiuorouridine-5'-monophosphate, 5-fluorodeoxyuridine, 5-fluorodeoxyuridine-5'-monophosphate, and 5-fluroorotate.
  • the therapeutic compound contained within the rapidly dissolving collagen film is an anti-fibrotic.
  • useful anti-fibrotics include inhibitors of prolyl hydroxylase and lysyl hydroxylase, e.g., iron chelators, ⁇ , ⁇ -dipyridyl, o-phenanthroline, proline analogs, lysine analogs, and free radical inhibitors and scavengers; inhibitors of collagen secretion, e.g., colchicine, vinblastin, cytochalasin B, copper, zinc, and EGTA; inhibitors of collagen secretion and maturation, e.g., BAPN, vincristine, and D-penicillamine; and stimulators of collagen degradation, e.g., EDTA and colchicine.
  • the therapeutic compound may also be an anti-viral drug.
  • anti-viral drugs examples include vidarabine, acyclovir, AZT, and amantadine.
  • angiostatic drugs e.g., angiostatin
  • other miscellaneous anti- cell proliferative drags e.g., tissue plasminogen activator (TPA), heparin, cytosine arabinoside, and gamma-interferon
  • TPA tissue plasminogen activator
  • the invention also provides a method of rapidly delivering a compound dose to a specific tissue site in a mammal. The method involves administering a collagen film containing the compound dose to the tissue site, wherein the collagen film rapidly dissolves upon exposure to the mammalian tissue site. Using this method to deliver toxic compounds, the toxic side effects are essentially restricted to the specific tissue site of compound delivery.
  • the invention also includes a method of treating a mammal to inhibit cellular proliferation, e.g., wound healing or tumor growth, at a specific tissue site.
  • the method involves administering a collagen film comprising an inhibitor of cell proliferation, e.g., an anti-metabolic antibiotic, anti-metabolite, anti-fibrotic, anti-viral compound, or angiostatic compound, to the tissue site, wherein the collagen film rapidly dissolves upon exposure to the tissue and delivers a dose of the compound sufficient to inhibit cell proliferation at the tissue site.
  • an inhibitor of cell proliferation e.g., an anti-metabolic antibiotic, anti-metabolite, anti-fibrotic, anti-viral compound, or angiostatic compound
  • the cell proliferation inhibitor is mitomycin, 5- fluorouracil, or an anti-fibrotic.
  • the collagen film dissolves within five to ten minutes upon exposure to the mammalian tissue site, more preferably, within two minutes, and, most preferably, within one minute or 30 seconds.
  • the mammal is preferably a human.
  • the collagen film is administered to the trabeculectomy-created fistula in the mammal, wherein the dose of cell proliferation inhibitor is sufficient to inhibit closure of the fistula.
  • the cell proliferation inhibitor used is mitomycin at a dose of 200-400 ⁇ g and may be administered in a 4x4 mm collagen film patch. Most preferably, the mitomycin dose is 400 ⁇ g.
  • post-operative intraocular pressure as a result of this method is less than 16 mmHg, more preferably, less than 12 mmHg, and, most preferably, less than 6 mmHg.
  • mono-reactive amine-modified reacted with a mono-reactive amine-modifying agent, also known as a monoacylating or sulfonating agent.
  • useful agents include, without limitation, anhydrides, acid halides, sulfonyl halides, and active esters.
  • the modifying agent is preferably a compound or combination of compounds which contains an acidic, carboxylic, or sulfonide group, or generates an acidic, carboxylic, or sulfonic group during reaction.
  • inhibitor of cell proliferation is meant an inhibitor of an increase in the number of cells located at a particular site. Such inhibition may occur by inhibition of cell migration or attachment, cell replication, cell survival, or angiogenesis.
  • tissue site is meant the area of tissue directly in contact with the collagen film administered to the tissue.
  • rapidly dissolves dissolves, or melts, in approximately 30 minutes or less.
  • the present invention provides a number of advantages.
  • the present techniques and collagen film compositions facilitate an improved approach for delivering a compound in situations where both a precise dose and accurate placement are required.
  • the dose can be adjusted to any desired amount, i.e., by modifying the concentration of compound in the film or the size of the film, and the solid nature of the film allows its placement at any site in the body which can be reached by surgical techniques.
  • the invention provides for the rapid dissolution of the collagen film upon exposure to normal body temperature. Taken together, these features ensure that a delivered compound achieves a certain concentration at a specific site, reducing possible inaccuracy due to mistaken dose or improper placement.
  • the present invention For delivery of mitomycin or 5-fluorouracil to a post- trabeculectomy fistula, the present invention represents an improvement over current empirical techniques employed, which typically involve placing a sponge wetted with compound on the fistula site for 3-5 minutes.
  • the advantage of delivering essentially all compound to a specific site also provides for limited compound delivery to tissues surrounding the delivery site. This advantage is especially relevant when the compound to be delivered has toxic effects. By restricting delivery to the targeted tissues, any unintentional or unnecessary toxic damage to surrounding tissues is reduced.
  • collagen film sample preparation can be subdivided and used for several applications over the course of several weeks. This feature provides the advantages of reducing experimental variation when administered over several days and eliminating the need for daily pre- surgical sample preparation.
  • Described herein are methods of preparing collagen films containing therapeutic compounds that readily dissolve upon exposure to normal human body temperature (35-37°C). These collagen films can be used for the rapid and accurate delivery of compounds to specific tissue sites.
  • collagen can be collected, solubilized, subjected to modification by mono-reactive, amine-modifying agents, and re- precipitated by any standard technique, e.g., those provided in DeVore et al. (U.S. Pat. No. 4,713,446), herein incorporated by reference.
  • any standard technique e.g., those provided in DeVore et al. (U.S. Pat. No. 4,713,446), herein incorporated by reference.
  • the following example is provided as an illustration and is in no way intended to limit the scope of the invention.
  • soluble collagen was prepared by standard procedures. Young calf hide was washed thoroughly with reagent alcohol and with deionized, pyrogen-free water, cut into approximately 1 cm 2 sections, and stirred overnight in 40 volumes of 0.5 M acetic acid. The mixture was then supplemented with pepsin (3% hide wet weight) and stirred for 72 hours. The digested, solubilized collagen was filtered through cheesecloth and precipitated by increasing the NaCl concentration to 0.8 M. The collagen was then cycled twice through steps of redissolution, in 0.5 M acetic acid, and reprecipitated. The collagen precipitate was then redissolved in 0.1 N acetic acid, dialyzed against 0.1 M acetic acid, filtered (0.45 ⁇ m), and refiltered (0.22 ⁇ m).
  • the purified, telopeptide-poor collagen was derivatized with glutaric anhydride as previously described (U.S. Pat. Nos. 5,631,243 and 5,492,135). Briefly, the collagen solution (approximately 3 mg/ml) was adjusted to pH 9.0 with IO N and 1 N NaOH. While stirring the solution, glutaric anhydride was added at 10% (weight of collagen). For twenty minutes, the stirring continued, and the pH was maintained.
  • Collagen film melting time at 35 °C was measured after placing the films in 0.8% saline in a 35 °C water bath. Pre-heated collagen films melted in approximately one minute. In contrast, collagen films poured into petri dishes without pre-heating melted at 35 °C in approximately 30 minutes.
  • Mitomycin-containing collagen films had a final mitomycin concentration of 400 ⁇ g per 16 mm 2 . 6 mm diameter discs were cut from the film and applied to human subconjunctival fibroblasts derived from Tenon's membrane layered in 96 well plates (CSM supplemented with 10% fetal bovine serum). After 72 hours, mitomycin-induced inhibition of cell division was assessed by measuring the reduction in fluorescence intensity (RFU) using a fluorogenic CalceinAM assay (see, for example, Decherchi et al., J. Neurosci. Meth. 71 : 205 (1997); Sugita, Pflitgers Arch. 429: 555 (1995); Padanilam et al., Ann. NY Acad.
  • Mitomycin-containing films may be stored for later use. For example, mitomycin activity in the collagen films described above was maintained for at least 6 weeks after preparation of the films (stored at 4°C). Administration of mitomycin- collagen films, 2, 4, and 6 weeks old, demonstrated 91%, 90%, and 92% inhibition of cell division, respectively, compared to mitomycin- free controls. These values were comparable to the % cell death inhibition elicited by administration of a freshly prepared mitomycin solution (0.4 mg/ml solution, dissolved in USP sterile water).
  • HPLC analysis of the mitomycin solution determined that stability was maintained for only 4 days following storage at ambient temperature and 4°C in the dark. Dissolution and storage in 0.9% saline or phosphate buffer (pH 7.4) is not recommended due to degradation and precipitation.
  • the collagen-mitomycin film may be administered to the external opening of the fistula created during glaucoma filtering surgery (trabeculectomy).
  • a collagen film e.g., a 4 x 4 mm patch, containing 100-1000 ⁇ g mitomycin (preferably 400 ⁇ g) is directly applied to the external opening of the fistula prior to replacing the scleral flap.
  • Administration of the mitomycin increases the duration of fistula patency, increasing filtration from the eye and reducing intraocular pressure.
  • 5-fluorouracil-containing films may be administered in the same fashion to deliver a 5-fluorouracil dose of 25- 250 ⁇ g (preferably 100 ⁇ g).
  • Other alternative compounds that are effective for this treatment are anti-fibrotic, angiostatic, and anti-viral compounds.
  • the collagen films of the invention may be administered to reduce cellular proliferation in specific tissue sites, such as for the localized inhibition of neoplastic or non-neoplastic cell growth.
  • any chemotherapeutic compound may be dissolved in the collagen matrix in concentrations appropriate for inhibiting cell growth.

Abstract

Disclosed herein are collagen films which rapidly dissolve at 35 °C. Also disclosed are methods for the preparation of the collagen films and their use as a vehicle for delivering a dose of therapeutic compound to a specific tissue site.

Description

COMPOUND DELIVERY USING RAPIDLY DISSOLVING COLLAGEN FILM
Background of the Invention In general, the invention relates to rapidly dissolving collagen films, methods of preparation, and the use of these films for rapid compound delivery.
The ability to specifically deliver a compound to a particular site in the human body is a desirable ^oal in many areas of medicine. For example, in cancer therapy, administration of chemotherapeutic agents to a tumor site with minimal exposure to surrounding tissues would dramatically reduce undesirable side effects to the surrounding tissues, or the body as a whole, while facilitating delivery of potent doses to malignant cells. In addition, the inhibition of wound healing is beneficial in certain circumstances, for example, following glaucoma filtration surgery (otherwise known as trabeculectomy). The initial stage in the process of wound healing is characterized by the movement of intravascular components, such as plasma and blood proteins, to the extravascular area (Peacock, In: Wound Repair, 491-492, 1984, ed. EE Peacock, WB Saunders Co, Philadelphia, PA). Neutrophils and macrophages then migrate to the injury site, functioning to prevent infection and promote fibroblast migration. Subsequent phases of wound healing include fibroblast secretion of collagen, collagen stabilization, angiogenesis, and wound closure (Costa et al., Opth. Surgery 24: 152- 170, 1993). During surgery for the treatment of glaucoma, a fistula is frequently created to allow for post-operative drainage of intraopthalmic fluid from the eye. Accordingly, the inhibition of fistula healing is beneficial in order to extend the drainage time and reduce intraopthalmic pressure. Several therapies have been adopted to inhibit fistula healing, including beta irradiation, 5-fluorouracil treatment, and mitomycin (also known as mitomycin-C or mitomicin) treatment (Costa et al., Opth. Surgery 24: 152-
170, 1993). Summary of the Invention The present invention provides a method of preparing a rapidly dissolving collagen film which includes a therapeutic compound. The method involves (i) preparing a purified solution of monoreactive-amine modified collagen, e.g., a glutaric anhydride derivatized collagen, (ii) heating the collagen solution to about 35-45 °C for a time sufficient to reduce collagen viscosity, (iii) adding the compound to the heated collagen solution, and iv) casting the solution into thin layers, wherein the solution dries and forms the film.
The invention also includes a collagen film prepared by the above described method and a collagen film which rapidly dissolves upon exposure to about 35 °C. Preferably, the collagen film dissolves within five to ten minutes upon exposure to about 35 °C. More preferably, the collagen film dissolves within two minutes upon exposure to about 35 °C. Most preferably, the collagen film dissolves within one minute or 30 seconds upon exposure to about 35 °C. The therapeutic compound contained within the rapidly dissolving collagen film may be an inhibitor of cell proliferation, e.g., an anti-metabolic antibiotic, anti- metabolite, anti-fibrotic, anti-viral compound, or angiostatic compound. Preferably, the compound is an anti-metabolic antibiotic, e.g., mitomycin, daunorubicin, mithramycin, bleomycin, or doxorubicin. Alternatively, the therapeutic compound may be an anti-metabolite. Examples of useful anti-metabolites include 5-fluorouracil, 5-fiuorouridine-5'-monophosphate, 5-fluorodeoxyuridine, 5-fluorodeoxyuridine-5'-monophosphate, and 5-fluroorotate.
In yet other applications, the therapeutic compound contained within the rapidly dissolving collagen film is an anti-fibrotic. Examples of useful anti-fibrotics include inhibitors of prolyl hydroxylase and lysyl hydroxylase, e.g., iron chelators, α,α-dipyridyl, o-phenanthroline, proline analogs, lysine analogs, and free radical inhibitors and scavengers; inhibitors of collagen secretion, e.g., colchicine, vinblastin, cytochalasin B, copper, zinc, and EGTA; inhibitors of collagen secretion and maturation, e.g., BAPN, vincristine, and D-penicillamine; and stimulators of collagen degradation, e.g., EDTA and colchicine.
As noted above, the therapeutic compound may also be an anti-viral drug. Examples of anti-viral drugs that can be used in the invention include vidarabine, acyclovir, AZT, and amantadine.
Finally, angiostatic drugs, e.g., angiostatin, as well as other miscellaneous anti- cell proliferative drags, e.g., tissue plasminogen activator (TPA), heparin, cytosine arabinoside, and gamma-interferon, may also be used in the rapidly dissolving collagen films described herein. In addition to methods of collagen film preparation, the invention also provides a method of rapidly delivering a compound dose to a specific tissue site in a mammal. The method involves administering a collagen film containing the compound dose to the tissue site, wherein the collagen film rapidly dissolves upon exposure to the mammalian tissue site. Using this method to deliver toxic compounds, the toxic side effects are essentially restricted to the specific tissue site of compound delivery.
In a related aspect, the invention also includes a method of treating a mammal to inhibit cellular proliferation, e.g., wound healing or tumor growth, at a specific tissue site. The method involves administering a collagen film comprising an inhibitor of cell proliferation, e.g., an anti-metabolic antibiotic, anti-metabolite, anti-fibrotic, anti-viral compound, or angiostatic compound, to the tissue site, wherein the collagen film rapidly dissolves upon exposure to the tissue and delivers a dose of the compound sufficient to inhibit cell proliferation at the tissue site.
In preferred embodiments, the cell proliferation inhibitor is mitomycin, 5- fluorouracil, or an anti-fibrotic. In addition, in other preferred embodiments, the collagen film dissolves within five to ten minutes upon exposure to the mammalian tissue site, more preferably, within two minutes, and, most preferably, within one minute or 30 seconds. In addition, the mammal is preferably a human.
This method can be used, for example, in treating a mammal undergoing surgery for glaucoma. In this application, the collagen film is administered to the trabeculectomy-created fistula in the mammal, wherein the dose of cell proliferation inhibitor is sufficient to inhibit closure of the fistula. Preferably, the cell proliferation inhibitor used is mitomycin at a dose of 200-400 μg and may be administered in a 4x4 mm collagen film patch. Most preferably, the mitomycin dose is 400 μg.
Use of this treatment results in reduced post-operative intraocular pressure. Preferably, post-operative intraocular pressure as a result of this method is less than 16 mmHg, more preferably, less than 12 mmHg, and, most preferably, less than 6 mmHg.
As used herein, by "mono-reactive amine-modified" is meant reacted with a mono-reactive amine-modifying agent, also known as a monoacylating or sulfonating agent. Useful agents include, without limitation, anhydrides, acid halides, sulfonyl halides, and active esters. The modifying agent is preferably a compound or combination of compounds which contains an acidic, carboxylic, or sulfonide group, or generates an acidic, carboxylic, or sulfonic group during reaction.
By "inhibitor of cell proliferation" is meant an inhibitor of an increase in the number of cells located at a particular site. Such inhibition may occur by inhibition of cell migration or attachment, cell replication, cell survival, or angiogenesis.
By "specific tissue site" is meant the area of tissue directly in contact with the collagen film administered to the tissue.
By "rapidly dissolves" is meant dissolves, or melts, in approximately 30 minutes or less.
The present invention provides a number of advantages. For example, the present techniques and collagen film compositions facilitate an improved approach for delivering a compound in situations where both a precise dose and accurate placement are required. The dose can be adjusted to any desired amount, i.e., by modifying the concentration of compound in the film or the size of the film, and the solid nature of the film allows its placement at any site in the body which can be reached by surgical techniques. In addition, the invention provides for the rapid dissolution of the collagen film upon exposure to normal body temperature. Taken together, these features ensure that a delivered compound achieves a certain concentration at a specific site, reducing possible inaccuracy due to mistaken dose or improper placement.
For delivery of mitomycin or 5-fluorouracil to a post- trabeculectomy fistula, the present invention represents an improvement over current empirical techniques employed, which typically involve placing a sponge wetted with compound on the fistula site for 3-5 minutes.
The advantage of delivering essentially all compound to a specific site also provides for limited compound delivery to tissues surrounding the delivery site. This advantage is especially relevant when the compound to be delivered has toxic effects. By restricting delivery to the targeted tissues, any unintentional or unnecessary toxic damage to surrounding tissues is reduced.
Furthermore, compounds, such as mitomycin, exhibit increased stability in the collagen film as compared to stability in solution. Thus, one collagen film sample preparation can be subdivided and used for several applications over the course of several weeks. This feature provides the advantages of reducing experimental variation when administered over several days and eliminating the need for daily pre- surgical sample preparation.
Other features and advantages of the invention will be apparent from the following detailed description thereof, and from the claims.
Detailed Description of the Invention
Described herein are methods of preparing collagen films containing therapeutic compounds that readily dissolve upon exposure to normal human body temperature (35-37°C). These collagen films can be used for the rapid and accurate delivery of compounds to specific tissue sites.
For the purposes of this invention, collagen can be collected, solubilized, subjected to modification by mono-reactive, amine-modifying agents, and re- precipitated by any standard technique, e.g., those provided in DeVore et al. (U.S. Pat. No. 4,713,446), herein incorporated by reference. The following example is provided as an illustration and is in no way intended to limit the scope of the invention.
Preparation of Collagen
As a first step toward producing rapidly dissolving films, soluble collagen was prepared by standard procedures. Young calf hide was washed thoroughly with reagent alcohol and with deionized, pyrogen-free water, cut into approximately 1 cm2 sections, and stirred overnight in 40 volumes of 0.5 M acetic acid. The mixture was then supplemented with pepsin (3% hide wet weight) and stirred for 72 hours. The digested, solubilized collagen was filtered through cheesecloth and precipitated by increasing the NaCl concentration to 0.8 M. The collagen was then cycled twice through steps of redissolution, in 0.5 M acetic acid, and reprecipitated. The collagen precipitate was then redissolved in 0.1 N acetic acid, dialyzed against 0.1 M acetic acid, filtered (0.45 μm), and refiltered (0.22 μm).
The purified, telopeptide-poor collagen was derivatized with glutaric anhydride as previously described (U.S. Pat. Nos. 5,631,243 and 5,492,135). Briefly, the collagen solution (approximately 3 mg/ml) was adjusted to pH 9.0 with IO N and 1 N NaOH. While stirring the solution, glutaric anhydride was added at 10% (weight of collagen). For twenty minutes, the stirring continued, and the pH was maintained.
The pH of the solution was adjusted to 4.3 with 6 N and 1 N HC1 to precipitate the derivatized collagen. The precipitate was centrifuged at 3500 rpm for 30 minutes. The pellet was washed three times in pyrogen-free deionized water and then redissolved in phosphate buffered glycerol (2% glycerol in 0.004 M phosphate buffer, pH 7.4) to achieve a final concentration of approximately 10 mg/ml. Preparation of Collagen Films Containing Mitomycin
To prepare collagen films containing mitomycin, the collagen solution, described above, was heated in a 35 °C water bath for 30 minutes to reduce viscosity. Mitomycin (e.g., Mutamycin®, Bristol Myers Squibb, Princeton, NJ), also known as mitomicin C, was added to the heated collagen. The collagen solution was then poured into petri dishes in a thin layer and allowed to air dry under a laminar-flow hood.
Collagen film melting time at 35 °C was measured after placing the films in 0.8% saline in a 35 °C water bath. Pre-heated collagen films melted in approximately one minute. In contrast, collagen films poured into petri dishes without pre-heating melted at 35 °C in approximately 30 minutes.
Mitomycin-containing collagen films had a final mitomycin concentration of 400 μg per 16 mm2. 6 mm diameter discs were cut from the film and applied to human subconjunctival fibroblasts derived from Tenon's membrane layered in 96 well plates (CSM supplemented with 10% fetal bovine serum). After 72 hours, mitomycin-induced inhibition of cell division was assessed by measuring the reduction in fluorescence intensity (RFU) using a fluorogenic CalceinAM assay (see, for example, Decherchi et al., J. Neurosci. Meth. 71 : 205 (1997); Sugita, Pflitgers Arch. 429: 555 (1995); Padanilam et al., Ann. NY Acad. Sci. 720: 111 (1994); Lichtenfels et al., J. Immunol. Meth. 172: 227 (1994); and Wang et al., Human Immunol. 37: 264 (1993)). The mitomycin-containing collagen films inhibited approximately 91% of the cell division demonstrated in control cells.
Mitomycin-containing films may be stored for later use. For example, mitomycin activity in the collagen films described above was maintained for at least 6 weeks after preparation of the films (stored at 4°C). Administration of mitomycin- collagen films, 2, 4, and 6 weeks old, demonstrated 91%, 90%, and 92% inhibition of cell division, respectively, compared to mitomycin- free controls. These values were comparable to the % cell death inhibition elicited by administration of a freshly prepared mitomycin solution (0.4 mg/ml solution, dissolved in USP sterile water).
In contrast to the stability of mitomycin in the collagen film, HPLC analysis of the mitomycin solution determined that stability was maintained for only 4 days following storage at ambient temperature and 4°C in the dark. Dissolution and storage in 0.9% saline or phosphate buffer (pH 7.4) is not recommended due to degradation and precipitation.
Use
Rapidly dissolving collagen films containing therapeutic compounds are useful for various treatments. For example, the collagen-mitomycin film may be administered to the external opening of the fistula created during glaucoma filtering surgery (trabeculectomy). Immediately following surgery, a collagen film, e.g., a 4 x 4 mm patch, containing 100-1000 μg mitomycin (preferably 400 μg), is directly applied to the external opening of the fistula prior to replacing the scleral flap. Administration of the mitomycin increases the duration of fistula patency, increasing filtration from the eye and reducing intraocular pressure.
Other compounds may also be administered to the trabeculectomy-created fistula to increase filtration during recovery. For example, 5-fluorouracil-containing films may be administered in the same fashion to deliver a 5-fluorouracil dose of 25- 250 μg (preferably 100 μg). Other alternative compounds that are effective for this treatment are anti-fibrotic, angiostatic, and anti-viral compounds.
Administration of the rapidly dissolving collagen films containing inhibitors of cell proliferation are also useful for treatment during recovery from other surgical procedures where prevention of wound healing is beneficial. In addition, the collagen films of the invention may be administered to reduce cellular proliferation in specific tissue sites, such as for the localized inhibition of neoplastic or non-neoplastic cell growth. For this application, any chemotherapeutic compound may be dissolved in the collagen matrix in concentrations appropriate for inhibiting cell growth.
Other Embodiments While the treatment regimens described herein are preferably applied to human patients, they also find use in the treatment of other animals, such as domestic pets or livestock.
Moreover, while the invention has been described in connection with specific embodiments thereof, it will be understood that it is capable of further modifications and this application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure come within known or customary practice within the art to which the invention pertains and may be applied to the essential features hereinbefore set forth, and follows in the scope of the appended claims. All references are herein incorporated by reference.
What is claimed is:

Claims

Claims
1. A method of preparing a rapidly dissolving collagen film which includes a therapeutic compound, said method comprising: a) preparing a purified solution of monoreactive-amine modified collagen; b) heating said collagen solution to about 35-45 ┬░C for a time sufficient to reduce collagen viscosity; c) adding said compound to the heated collagen solution; and d) casting said solution into thin layers, wherein said solution dries and forms said film.
2. The method of claim 1, wherein said collagen is modified by glutaric anhydride derivatization.
3. A collagen film prepared by the method of claim 1.
4. A collagen film, wherein said film rapidly dissolves upon exposure to about
35┬░C.
5. The collagen film of claim 4, wherein said collagen film dissolves within ten minutes, five minutes, two minutes, one minute, or thirty seconds upon exposure to about 35 ┬░C.
6. The collagen film of claim 4, wherein said film includes a compound which is an inhibitor of cell proliferation, an anti-metabolic antibiotic, an anti-metabolite, or an anti-fibrotic compound.
7. The collagen film of claim 6, wherein said compound is mitomycin or 5- fluorouracil.
8. A method of rapidly delivering a compound dose to a specific tissue site in a mammal, said method comprising administering a collagen film which includes said compound dose to said tissue site, wherein said collagen film rapidly dissolves upon exposure to 35 ┬░C.
9. The method of claim 8, wherein said compound is toxic and the toxic effects of said compound are essentially restricted to said specific tissue site.
10. A method of treating a mammal to inhibit cellular proliferation at a specific tissue site, said method comprising administering a collagen film which includes an inhibitor of cell proliferation to said tissue site, wherein said collagen film rapidly dissolves upon exposure to 35 ┬░C and delivers a dose of said compound sufficient to inhibit cell proliferation at said tissue site.
11. The method of claim 10, wherein said mammal is a human.
12. The method of claim 10, wherein said collagen film is administered to the trabeculectomy-created fistula in said mammal, wherein said dose of cell proliferation inhibitor is sufficient to inhibit closure of said fistula.
13. The method of claim 12, wherein post-operative intraocular pressure is less than 16 mmHg, 12 mmHg, or 6 mmHg.
14. The method of claim 10, wherein said collagen film dissolves within ten minutes, five minutes, two minutes, one minute, or thirty seconds upon exposure to about 35┬░C.
15. The method of claim 10, wherein said inhibitor is an anti -metabolic antibiotic, an anti-metabolite, or an anti-fibrotic compound.
16. The method of claim 15, wherein said inhibitor is mitomycin or 5- fluorouracil.
17. The method of claim 10, wherein said dose of cell proliferation inhibitor is 200-400 ╬╝g of mitomycin.
18. The method of claim 10, wherein said collagen film comprises a 4 x 4 mm patch.
PCT/US1999/011390 1998-05-22 1999-05-20 Compound delivery using rapidly dissolving collagen film WO1999061047A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9267167B2 (en) 2004-06-28 2016-02-23 Becton, Dickinson And Company Dissolvable films and methods including the same

Families Citing this family (121)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1173790A2 (en) * 1999-03-01 2002-01-23 Boston Innovative Optics, Inc. System and method for increasing the depth of focus of the human eye
US7045600B2 (en) * 1999-11-29 2006-05-16 Nederlandse Organisatie Voor Toegepastnatuur-Wetenschappelijk Ondrezoek Tno Modification of collagenous materials and medical treatment, diagnosis and monitoring of fibrotic conditions
US6875427B1 (en) 2001-10-09 2005-04-05 Tissue Adhesive Technologies, Inc. Light energized tissue adhesive
US6780840B1 (en) * 2001-10-09 2004-08-24 Tissue Adhesive Technologies, Inc. Method for making a light energized tissue adhesive
US6773699B1 (en) 2001-10-09 2004-08-10 Tissue Adhesive Technologies, Inc. Light energized tissue adhesive conformal patch
US6939364B1 (en) 2001-10-09 2005-09-06 Tissue Adhesive Technologies, Inc. Composite tissue adhesive
TWI329105B (en) 2002-02-01 2010-08-21 Rigel Pharmaceuticals Inc 2,4-pyrimidinediamine compounds and their uses
US6969525B2 (en) * 2002-06-08 2005-11-29 James C. Y. Chow Surgically implanted time release medication for post-surgical treatment of a patient
EP2316459B1 (en) 2002-07-29 2013-11-06 Rigel Pharmaceuticals, Inc. 2,4-pyrimidinediamine compounds for use in methods of treating or preventing autoimmune diseases
US20060166879A1 (en) * 2002-12-20 2006-07-27 Chakshu Research Inc Treatment of conditions associated with the presence of macromolecular aggregates, particularly ophthalmic disorders
US20060177430A1 (en) * 2002-12-20 2006-08-10 Chakshu Research Inc Treatment of ocular disorders with ophthalmic formulations containing methylsulfonylmethane as a transport enhancer
NZ540885A (en) * 2002-12-20 2009-02-28 Chakshu Res Inc Ophthalmic formulation for the prevention and treatment of ocular conditions
US20060172972A1 (en) * 2002-12-20 2006-08-03 Chakshu Research Inc Formulation and method for administration of ophthalmologically active agents
US7628810B2 (en) * 2003-05-28 2009-12-08 Acufocus, Inc. Mask configured to maintain nutrient transport without producing visible diffraction patterns
US20050046794A1 (en) * 2003-06-17 2005-03-03 Silvestrini Thomas A. Method and apparatus for aligning a mask with the visual axis of an eye
DK1663242T3 (en) 2003-08-07 2011-08-01 Rigel Pharmaceuticals Inc 2,4-Pyrimidinediamine compounds and use as antiproliferative agents
US8038639B2 (en) 2004-11-04 2011-10-18 Baxter International Inc. Medical fluid system with flexible sheeting disposable unit
US20050136112A1 (en) * 2003-12-19 2005-06-23 Pediamed Pharmaceuticals, Inc. Oral medicament delivery system
WO2006024489A2 (en) * 2004-08-30 2006-03-09 Interstitial Therapeutics Methods and compositions for the treatment of cell proliferation
WO2006042252A2 (en) * 2004-10-08 2006-04-20 Potentia Pharmeceuticals, Inc. Viral complement control proteins for eye disorders
US8043609B2 (en) 2004-10-08 2011-10-25 Potentia Pharmaceuticals, Inc. Viral complement control proteins for eye disorders
US7976577B2 (en) 2005-04-14 2011-07-12 Acufocus, Inc. Corneal optic formed of degradation resistant polymer
AU2006270094A1 (en) * 2005-07-15 2007-01-25 Chakshu Research Inc. Prevention and treatment of ophthalmic complications of diabetes
CA2518298A1 (en) * 2005-09-06 2007-03-06 Chaimed Technologies Inc. Biodegradable polymers, their preparation and their use for the manufacture of bandages
US8168584B2 (en) * 2005-10-08 2012-05-01 Potentia Pharmaceuticals, Inc. Methods of treating age-related macular degeneration by compstatin and analogs thereof
EP2662089A3 (en) 2005-10-08 2014-02-19 Potentia Pharmaceuticals, Inc. Compstatin and analogs thereof for eye disorders
ES2622493T3 (en) 2006-02-24 2017-07-06 Rigel Pharmaceuticals, Inc. Compositions and methods for inhibiting the JAK route
US9539241B2 (en) * 2006-07-12 2017-01-10 Mobius Therapeutics, Llc Apparatus and method for reconstituting a pharmaceutical and preparing the reconstituted pharmaceutical for transient application
US8163902B2 (en) 2006-11-21 2012-04-24 Rigel Pharmaceuticals, Inc. Prodrugs of 2,4-pyrimidinediamine compounds and their uses
DK2148691T3 (en) 2007-02-05 2015-08-17 Apellis Pharmaceuticals Inc Compstatinanaloger for use in the treatment of inflammatory states of the respiratory system
US20090004455A1 (en) * 2007-06-27 2009-01-01 Philippe Gravagna Reinforced composite implant
WO2009015087A2 (en) * 2007-07-20 2009-01-29 Potentia Pharmaceuticals, Inc. Compositions and methods for treatment of trauma
US9308068B2 (en) 2007-12-03 2016-04-12 Sofradim Production Implant for parastomal hernia
EP2234608A2 (en) 2007-12-11 2010-10-06 Viamet Pharmaceuticals, Inc. Metalloenzyme inhibitors using metal binding moieties in combination with targeting moieties
US20110190221A1 (en) * 2008-03-28 2011-08-04 Apellis Ag Modulation and repletion/enhancement of the complement system for treatment of trauma
US9242026B2 (en) * 2008-06-27 2016-01-26 Sofradim Production Biosynthetic implant for soft tissue repair
EP2382210B1 (en) 2008-12-30 2017-03-01 Rigel Pharmaceuticals, Inc. Pyrimidinediamine kinase inhibitors
DK2389372T3 (en) 2009-01-23 2015-12-14 Rigel Pharmaceuticals Inc COMPOSITIONS AND METHODS FOR INHIBITION OF JAK pathway
CN104523661A (en) 2009-02-06 2015-04-22 南加利福尼亚大学 Therapeutic compositions comprising monoterpenes
CA2768543C (en) 2009-07-28 2017-06-20 Rigel Pharmaceuticals, Inc. Compositions and methods for inhibition of the jak pathway
KR101796801B1 (en) 2009-08-13 2017-11-10 아큐포커스, 인크. Masked intraocular implants and lenses
FR2949688B1 (en) 2009-09-04 2012-08-24 Sofradim Production FABRIC WITH PICOTS COATED WITH A BIORESORBABLE MICROPOROUS LAYER
USD656526S1 (en) 2009-11-10 2012-03-27 Acufocus, Inc. Ocular mask
BR112012022209A2 (en) 2010-03-03 2017-06-06 Neonc Tech Inc pharmaceutical compositions comprising monoterpenes
ES2563319T3 (en) 2010-04-24 2016-03-14 Viamet Pharmaceuticals, Inc. Metalloenzyme inhibitor compounds
WO2011163394A2 (en) 2010-06-22 2011-12-29 Apellis Pharmaceuticals, Inc. Compstatin analogs for treatment of neuropathic pain
BR112013001632B1 (en) 2010-07-28 2021-05-25 Rigel Pharmaceuticals compound, pharmaceutical composition, and, method of making a compound
US20160038600A1 (en) 2012-08-03 2016-02-11 Neonc Technologies Inc. Pharmaceutical compositions comprising poh derivatives
EP2898883B1 (en) 2010-08-27 2016-11-23 Neonc Technologies Inc. Pharmaceutical compositions comprising perillyl alcohol carbamates
US9056855B2 (en) 2010-10-28 2015-06-16 Viamet Pharmaceuticals, Inc. Metalloenzyme inhibitor compounds
ES2703498T3 (en) 2010-11-13 2019-03-11 Innocrin Pharmaceuticals Inc 1- (6,7-Bis (difluoromethoxy) naphthalen-2-yl) -2-methyl-1- (1H-1,2,3-triazol-4-yl) propan-1-ol as inhibitor of CYP17 for the treatment of androgen-dependent diseases such as prostate cancer
US9211269B2 (en) 2010-12-17 2015-12-15 Neonc Technologies Inc. Methods and devices for using isoperillyl alcohol
CN103649028B (en) 2011-02-25 2015-10-14 美国政府健康及人类服务部 Suppress the Colistin analogue of FtsZ albumen
FR2972626B1 (en) 2011-03-16 2014-04-11 Sofradim Production PROSTHETIC COMPRISING A THREE-DIMENSIONAL KNIT AND ADJUSTED
WO2012149416A2 (en) 2011-04-28 2012-11-01 University Of Southern California Human myeloid derived suppressor cell cancer markers
AU2012273166A1 (en) 2011-06-19 2014-01-23 Viamet Pharmaceuticals (NC), Inc. Metalloenzyme inhibitor compounds
BR122020013521B1 (en) 2011-06-19 2021-05-25 Viamet Pharmaceuticals (NC), Inc metalloenzyme inhibitor compounds
US8883797B2 (en) 2011-06-23 2014-11-11 Viamet Pharmaceuticals, Inc. Metalloenzyme inhibitor compounds
FR2977789B1 (en) 2011-07-13 2013-07-19 Sofradim Production PROSTHETIC FOR UMBILIC HERNIA
FR2977790B1 (en) 2011-07-13 2013-07-19 Sofradim Production PROSTHETIC FOR UMBILIC HERNIA
JP2014528264A (en) 2011-09-30 2014-10-27 ソフラディム・プロダクション Reversible hardness of light weight mesh
JP6046160B2 (en) 2011-12-02 2016-12-14 アキュフォーカス・インコーポレーテッド Ophthalmic mask with selective spectral transmission
BR112014013963B1 (en) 2011-12-11 2021-06-22 Nqp 1598, Ltd METALLOENZYME INHIBITOR COMPOUNDS, COMPOSITIONS INCLUDING SUCH COMPOUNDS, THERAPEUTIC USE OF THE SAME AND METHODS TO INHIBIT METALLOENZYME ACTIVITY AND TO TREAT OR PREVENT FUNGI GROWTH ON PLANTS
FR2985170B1 (en) 2011-12-29 2014-01-24 Sofradim Production PROSTHESIS FOR INGUINAL HERNIA
FR2985271B1 (en) 2011-12-29 2014-01-24 Sofradim Production KNITTED PICOTS
IN2014DN06792A (en) 2012-01-20 2015-05-22 Viamet Pharmaceuticals Inc
JP6231548B2 (en) 2012-03-23 2017-11-15 マテオン セラピューティクス， インコーポレイテッド Compositions and methods for inhibition of cathepsins
WO2013173506A2 (en) 2012-05-16 2013-11-21 Rigel Pharmaceuticals, Inc. Method of treating muscular degradation
FR2994185B1 (en) 2012-08-02 2015-07-31 Sofradim Production PROCESS FOR THE PREPARATION OF A POROUS CHITOSAN LAYER
FR2995788B1 (en) 2012-09-25 2014-09-26 Sofradim Production HEMOSTATIC PATCH AND PREPARATION METHOD
FR2995778B1 (en) 2012-09-25 2015-06-26 Sofradim Production ABDOMINAL WALL REINFORCING PROSTHESIS AND METHOD FOR MANUFACTURING THE SAME
FR2995779B1 (en) 2012-09-25 2015-09-25 Sofradim Production PROSTHETIC COMPRISING A TREILLIS AND A MEANS OF CONSOLIDATION
EP2900174B1 (en) 2012-09-28 2017-04-12 Sofradim Production Packaging for a hernia repair device
PL2920201T3 (en) 2012-11-15 2020-10-05 Apellis Pharmaceuticals, Inc. Long-acting compstatin analogs and related compositions and methods
US9204962B2 (en) 2013-03-13 2015-12-08 Acufocus, Inc. In situ adjustable optical mask
US9427922B2 (en) 2013-03-14 2016-08-30 Acufocus, Inc. Process for manufacturing an intraocular lens with an embedded mask
WO2014152391A1 (en) 2013-03-15 2014-09-25 Apellis Pharmaceuticals, Inc. Cell-penetrating compstatin analogs and uses thereof
FR3006578B1 (en) 2013-06-07 2015-05-29 Sofradim Production PROSTHESIS BASED ON TEXTILE FOR LAPAROSCOPIC PATHWAY
FR3006581B1 (en) 2013-06-07 2016-07-22 Sofradim Production PROSTHESIS BASED ON TEXTILE FOR LAPAROSCOPIC PATHWAY
EP3000432B1 (en) 2014-09-29 2022-05-04 Sofradim Production Textile-based prosthesis for treatment of inguinal hernia
EP3000433B1 (en) 2014-09-29 2022-09-21 Sofradim Production Device for introducing a prosthesis for hernia treatment into an incision and flexible textile based prosthesis
EP3029189B1 (en) 2014-12-05 2021-08-11 Sofradim Production Prosthetic porous knit, method of making same and hernia prosthesis
CN107613768B (en) 2015-02-12 2020-10-20 NeOnc技术股份有限公司 Pharmaceutical composition comprising perillyl alcohol derivative
EP3059255B1 (en) 2015-02-17 2020-05-13 Sofradim Production Method for preparing a chitosan-based matrix comprising a fiber reinforcement member
EP3085337B1 (en) 2015-04-24 2022-09-14 Sofradim Production Prosthesis for supporting a breast structure
EP3106185B1 (en) 2015-06-19 2018-04-25 Sofradim Production Synthetic prosthesis comprising a knit and a non porous film and method for forming same
EP3719016A1 (en) 2015-08-04 2020-10-07 Rigel Pharmaceuticals, Inc. Benzazole compounds and methods for making and using the compounds
EP3359555B1 (en) 2015-10-07 2023-12-20 Apellis Pharmaceuticals, Inc. Dosing regimens
CN108779094B (en) 2015-12-30 2021-11-16 Nqp 1598公司 Metalloenzyme inhibitor compounds
EP3195830B1 (en) 2016-01-25 2020-11-18 Sofradim Production Prosthesis for hernia repair
ES2940911T3 (en) 2016-06-27 2023-05-12 Rigel Pharmaceuticals Inc 2,4-diamino-pyrimidine compounds and their use as IRAK4 inhibitors
EP3312325B1 (en) 2016-10-21 2021-09-22 Sofradim Production Method for forming a mesh having a barbed suture attached thereto and the mesh thus obtained
CN115531387A (en) 2016-10-26 2022-12-30 里格尔药品股份有限公司 Pyrazole amide compounds useful as IRAK inhibitors
CA3041587A1 (en) 2016-10-26 2018-05-17 Rigel Pharmaceuticals, Inc. Oxazole derivatives for use as irak inhibitors and method for their preparation
WO2018102412A1 (en) 2016-11-30 2018-06-07 Neonc Technologies, Inc. A perillyl alcohol-3 bromopyruvate conjugate and methods of treating cancer
EP3562306A4 (en) 2016-12-29 2020-06-24 Selenity Therapeutics (Bermuda), Ltd. Metalloenzyme inhibitor compounds
CA3055292A1 (en) 2016-12-29 2018-07-05 Selenity Therapeutics (Bermuda), Ltd. Metalloenzyme inhibitor compounds
US10632168B2 (en) 2017-04-06 2020-04-28 Sustain Holdings, Llc Collagen peptide-based medicament compositions and devices and methods of production and use thereof
WO2018187813A1 (en) 2017-04-07 2018-10-11 Apellis Pharmaceuticals, Inc. Dosing regimens and related compositions and methods
EP3398554A1 (en) 2017-05-02 2018-11-07 Sofradim Production Prosthesis for inguinal hernia repair
EP3645525A1 (en) 2017-06-29 2020-05-06 Rigel Pharmaceuticals, Inc. Kinase inhibitors and methods for making and using
US20210292410A1 (en) 2017-12-07 2021-09-23 Morphosys Ag Treatment paradigm for an anti-cd19 antibody and venetoclax combination treatment
JP7325425B2 (en) 2018-02-08 2023-08-14 ネオンク テクノロジーズ インク． Methods for Permeabilizing the Blood-Brain Barrier
ES2904471T3 (en) 2018-04-06 2022-04-05 Univ Pennsylvania Compstatin analogs with increased solubility and improved pharmacokinetic properties
JP2021523226A (en) 2018-05-03 2021-09-02 ライジェル ファーマシューティカルズ， インコーポレイテッド RIP1 inhibitor compound and methods for producing and using it
ES2947446T3 (en) 2018-05-03 2023-08-09 Rigel Pharmaceuticals Inc RIP1 inhibitory compounds and methods for making and using the same
US20220000880A1 (en) 2018-11-01 2022-01-06 Rigel Pharmaceuticals, Inc. Method and composition embodiments for treating acute myeloid leukemia
EP3653171A1 (en) 2018-11-16 2020-05-20 Sofradim Production Implants suitable for soft tissue repair
US11389513B2 (en) 2019-04-22 2022-07-19 Sustain Holdings, Llc Collagen peptide-based medicament compositions and devices and methods of production and use thereof
WO2020243612A1 (en) 2019-05-29 2020-12-03 Rigel Pharmaceuticals, Inc. Method of preventing and treating thrombosis
MX2022001596A (en) 2019-08-08 2022-03-11 Rigel Pharmaceuticals Inc Compounds and method for treating cytokine release syndrome.
EP4013420B1 (en) 2019-08-14 2023-11-01 Rigel Pharmaceuticals, Inc. Method of blocking or ameliorating cytokine release syndrome
BR112022003564A2 (en) 2019-08-30 2022-05-17 Rigel Pharmaceuticals Inc Compound, composition, spray-dried composition, method of preparing a spray-dried composition, and method
CR20220075A (en) 2019-09-06 2022-07-14 Rigel Pharmaceuticals Inc Rip1 inhibitory compounds and methods for making and using the same
AU2020341681B2 (en) 2019-09-06 2024-02-15 Rigel Pharmaceuticals, Inc. RIP1 inhibitory compounds and methods for making and using the same
US11578078B2 (en) 2019-11-07 2023-02-14 Rigel Pharmaceuticals, Inc. Heterocyclic RIP1 inhibitory compounds
WO2022187303A1 (en) 2021-03-03 2022-09-09 Rigel Pharmaceuticals, Inc. A method for treating a disease or condition using a pyrazole compound or formulation thereof
TW202300490A (en) 2021-03-11 2023-01-01 美商雷傑製藥公司 Heterocyclic rip1 kinase inhibitors
US20230303555A1 (en) 2022-03-23 2023-09-28 Rigel Pharmaceuticals, Inc. Pyrimid-2-yl-pyrazole compounds as irak inhibitors
US20230312568A1 (en) 2022-03-31 2023-10-05 Rigel Pharmaceuticals, Inc. Tricyclic irak inhibitors
WO2024074428A1 (en) 2022-10-03 2024-04-11 Xampla Limited Alginate-starch films

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713446A (en) * 1985-09-06 1987-12-15 Minnesota Mining And Manufacturing Company Viscoelastic collagen solution for ophthalmic use and method of preparation
US5492135A (en) * 1992-09-09 1996-02-20 Devore; Dale P. Collagen modulators for use in photoablation excimer laser keratectomy
US5631243A (en) * 1990-07-03 1997-05-20 Collagenesis Inc. Collagen-based viscoelastic solution for visco-surgery

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5325006B2 (en) * 1973-08-17 1978-07-24
US4164559A (en) 1977-09-21 1979-08-14 Cornell Research Foundation, Inc. Collagen drug delivery device
US5660692A (en) 1988-02-24 1997-08-26 Cedars-Sinai Medical Center Method of crosslinking amino acid-containing polymers using photoactivatable chemical crosslinkers
US5219576A (en) 1988-06-30 1993-06-15 Collagen Corporation Collagen wound healing matrices and process for their production
US5162430A (en) 1988-11-21 1992-11-10 Collagen Corporation Collagen-polymer conjugates
IL105529A0 (en) 1992-05-01 1993-08-18 Amgen Inc Collagen-containing sponges as drug delivery for proteins
CA2130295A1 (en) 1993-08-26 1995-02-27 Richard A. Berg Ionically crosslinked glycosaminoglycan gels for soft tissue augmentation and drug delivery
CA2140053C (en) 1994-02-09 2000-04-04 Joel S. Rosenblatt Collagen-based injectable drug delivery system and its use

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713446A (en) * 1985-09-06 1987-12-15 Minnesota Mining And Manufacturing Company Viscoelastic collagen solution for ophthalmic use and method of preparation
US5631243A (en) * 1990-07-03 1997-05-20 Collagenesis Inc. Collagen-based viscoelastic solution for visco-surgery
US5492135A (en) * 1992-09-09 1996-02-20 Devore; Dale P. Collagen modulators for use in photoablation excimer laser keratectomy

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BELYEA D A, ET AL.: "MIDTERM FOLLOW-UP RESULTS OF COMBINED PHACOEMULSIFICATION LENS IMPLANTATION AND MITOMYCIN-C TRABECULECTOMY PROCEDURE", JOURNAL OF GLAUCOMA, NEW YORK, NY, US, 1 January 1997 (1997-01-01), US, pages 90 - 98, XP002923719, ISSN: 1057-0829 *
COSTA V. P., ET AL.: "WOUND HEALING MODULATION IN GLAUCOMA FILTRATION SURGERY.", OPHTHALMIC SURGERY, SLACK, PITMAN, NJ, US, vol. 24., no. 03., 1 March 1993 (1993-03-01), US, pages 152 - 170., XP002923717, ISSN: 0022-023X *
PANDURANGA RAO K: "RECENT DEVELOPMENTS OF COLLAGEN-BASED MATERIALS FOR MEDICAL APPLICATIONS AND DRUG DELIVERY SYSTEMS", JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION., VSP, UTRECHT., NL, vol. 07, no. 07, 1 January 1995 (1995-01-01), NL, pages 623 - 645, XP002923718, ISSN: 0920-5063 *
See also references of EP1079850A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9267167B2 (en) 2004-06-28 2016-02-23 Becton, Dickinson And Company Dissolvable films and methods including the same
US9410185B2 (en) 2004-06-28 2016-08-09 Becton, Dickinson And Company Dissolvable films and methods including the same

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