WO2002041928A1 - Biomateriaux polymeres poreux, procede de preparation et utilisations - Google Patents
Biomateriaux polymeres poreux, procede de preparation et utilisations Download PDFInfo
- Publication number
- WO2002041928A1 WO2002041928A1 PCT/FR2001/003623 FR0103623W WO0241928A1 WO 2002041928 A1 WO2002041928 A1 WO 2002041928A1 FR 0103623 W FR0103623 W FR 0103623W WO 0241928 A1 WO0241928 A1 WO 0241928A1
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- WIPO (PCT)
- Prior art keywords
- biomaterial
- network
- filling
- porous
- polymer
- Prior art date
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- 239000012620 biological material Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims description 13
- 239000000126 substance Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 13
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- 239000004005 microsphere Substances 0.000 claims description 47
- 229920000642 polymer Polymers 0.000 claims description 47
- 238000011049 filling Methods 0.000 claims description 38
- 239000000243 solution Substances 0.000 claims description 23
- 235000010443 alginic acid Nutrition 0.000 claims description 21
- 229920000615 alginic acid Polymers 0.000 claims description 21
- 239000011148 porous material Substances 0.000 claims description 19
- 238000005470 impregnation Methods 0.000 claims description 15
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims description 14
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- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 4
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- 108010035532 Collagen Proteins 0.000 claims description 4
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 229940121363 anti-inflammatory agent Drugs 0.000 claims description 4
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- AEMOLEFTQBMNLQ-AZLKCVHYSA-N (2r,3s,4s,5s,6r)-3,4,5,6-tetrahydroxyoxane-2-carboxylic acid Chemical group O[C@@H]1O[C@@H](C(O)=O)[C@@H](O)[C@H](O)[C@@H]1O AEMOLEFTQBMNLQ-AZLKCVHYSA-N 0.000 claims description 3
- 229920002307 Dextran Polymers 0.000 claims description 3
- 239000004037 angiogenesis inhibitor Substances 0.000 claims description 3
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- 235000010987 pectin Nutrition 0.000 claims description 3
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- 230000008569 process Effects 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- KIUKXJAPPMFGSW-DNGZLQJQSA-N (2S,3S,4S,5R,6R)-6-[(2S,3R,4R,5S,6R)-3-Acetamido-2-[(2S,3S,4R,5R,6R)-6-[(2R,3R,4R,5S,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid Chemical compound CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 KIUKXJAPPMFGSW-DNGZLQJQSA-N 0.000 claims description 2
- 244000215068 Acacia senegal Species 0.000 claims description 2
- 229920001817 Agar Polymers 0.000 claims description 2
- 229920000936 Agarose Polymers 0.000 claims description 2
- 102000009027 Albumins Human genes 0.000 claims description 2
- 108010088751 Albumins Proteins 0.000 claims description 2
- 229920000945 Amylopectin Polymers 0.000 claims description 2
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- 241000416162 Astragalus gummifer Species 0.000 claims description 2
- 229920001661 Chitosan Polymers 0.000 claims description 2
- 229920002907 Guar gum Polymers 0.000 claims description 2
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- 235000019312 arabinogalactan Nutrition 0.000 claims description 2
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- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 claims description 2
- 235000021240 caseins Nutrition 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920003086 cellulose ether Polymers 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- 239000003102 growth factor Substances 0.000 claims description 2
- 235000010417 guar gum Nutrition 0.000 claims description 2
- 239000000665 guar gum Substances 0.000 claims description 2
- 229960002154 guar gum Drugs 0.000 claims description 2
- 239000005556 hormone Substances 0.000 claims description 2
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- 229920002674 hyaluronan Polymers 0.000 claims description 2
- 229960003160 hyaluronic acid Drugs 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- 125000005395 methacrylic acid group Chemical group 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 102000004196 processed proteins & peptides Human genes 0.000 claims description 2
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- 235000018102 proteins Nutrition 0.000 claims description 2
- 102000004169 proteins and genes Human genes 0.000 claims description 2
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- 235000010487 tragacanth Nutrition 0.000 claims description 2
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- 239000011782 vitamin Substances 0.000 claims description 2
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- 229930003231 vitamin Natural products 0.000 claims description 2
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- 229920001285 xanthan gum Polymers 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000011159 matrix material Substances 0.000 abstract description 2
- CGIGDMFJXJATDK-UHFFFAOYSA-N indomethacin Chemical compound CC1=C(CC(O)=O)C2=CC(OC)=CC=C2N1C(=O)C1=CC=C(Cl)C=C1 CGIGDMFJXJATDK-UHFFFAOYSA-N 0.000 description 32
- 229960000905 indomethacin Drugs 0.000 description 17
- 230000010102 embolization Effects 0.000 description 10
- 239000000499 gel Substances 0.000 description 9
- 239000004480 active ingredient Substances 0.000 description 6
- 125000002091 cationic group Chemical group 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 125000000129 anionic group Chemical group 0.000 description 4
- 239000003349 gelling agent Substances 0.000 description 4
- 229940102223 injectable solution Drugs 0.000 description 4
- 239000011325 microbead Substances 0.000 description 4
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- 239000011859 microparticle Substances 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 230000001225 therapeutic effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
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- 208000021331 vascular occlusion disease Diseases 0.000 description 2
- AEMOLEFTQBMNLQ-SYJWYVCOSA-N (2s,3s,4s,5s,6r)-3,4,5,6-tetrahydroxyoxane-2-carboxylic acid Chemical class O[C@@H]1O[C@H](C(O)=O)[C@@H](O)[C@H](O)[C@@H]1O AEMOLEFTQBMNLQ-SYJWYVCOSA-N 0.000 description 1
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000371 Esterases Proteins 0.000 description 1
- 102000016359 Fibronectins Human genes 0.000 description 1
- 108010067306 Fibronectins Proteins 0.000 description 1
- 102000004366 Glucosidases Human genes 0.000 description 1
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- 229920000869 Homopolysaccharide Polymers 0.000 description 1
- 102000004856 Lectins Human genes 0.000 description 1
- 108090001090 Lectins Proteins 0.000 description 1
- 102100022365 NAD(P)H dehydrogenase [quinone] 1 Human genes 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 241000199919 Phaeophyceae Species 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 206010046543 Urinary incontinence Diseases 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
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- 239000002280 amphoteric surfactant Substances 0.000 description 1
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- 230000001772 anti-angiogenic effect Effects 0.000 description 1
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- 150000001720 carbohydrates Chemical group 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
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- 235000005911 diet Nutrition 0.000 description 1
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- 238000004108 freeze drying Methods 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002523 lectin Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- MVBJSQCJPSRKSW-UHFFFAOYSA-N n-[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]prop-2-enamide Chemical compound OCC(CO)(CO)NC(=O)C=C MVBJSQCJPSRKSW-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920002187 poly[N-2-(hydroxypropyl) methacrylamide] polymer Polymers 0.000 description 1
- 229920002338 polyhydroxyethylmethacrylate Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
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- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 238000002255 vaccination Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/56—Porous materials, e.g. foams or sponges
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/16—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/34—Macromolecular materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/54—Biologically active materials, e.g. therapeutic substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/252—Polypeptides, proteins, e.g. glycoproteins, lipoproteins, cytokines
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
- A61L2300/406—Antibiotics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/41—Anti-inflammatory agents, e.g. NSAIDs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/412—Tissue-regenerating or healing or proliferative agents
- A61L2300/414—Growth factors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/43—Hormones, e.g. dexamethasone
Definitions
- the present invention relates to porous polymer biomaterials containing a porous polymer matrix possibly loaded with biological and / or chemical active agents, their preparation process and their uses, in particular as an implant.
- absorbable or non-absorbable biomaterials are frequent in the medical environment. These biomaterials can come in various forms and can be used, for example, for the production of therapeutic vascular occlusions (embolizations), for cell reconstruction, the treatment of gastroesophageal reflux, urinary incontinence or even for the reduction of wrinkles.
- microbeads composed of a hydrophilic acrylic copolymer covered with a agent promoting cell adhesion such as for example collagen, gelatin, glucosaminoglycans, fibronectin, lectins, etc.
- the acrylic copolymer composing these microbeads preferably contains one or more monomers carrying a cationic charge, so as to initiate and improve cell adhesion to the microbeads at the embolization site.
- a crosslinking agent can be added to crosslink the adhesion agent covering the microspheres.
- microspheres comprising crosslinked polyvinyl alcohol, said microspheres also being able to comprise an agent promoting adhesion cell and possibly be impregnated with an active ingredient such as an anti-angiogenic or anti-inflammatory agent.
- an active ingredient such as an anti-angiogenic or anti-inflammatory agent.
- the active principle which can in particular be an anti-inflammatory agent, must be able to remain in the microspheres for the entire duration of preparation of the injectable solution containing the microspheres and which will be used to carry out the embolization, then during the routing of these microspheres by the blood circulation to the embolization site where it will finally be released (this duration being approximately 2 to 10 minutes). It is in order to remedy these problems that the inventors have developed what is the subject of the invention. The inventors have therefore set themselves the objective of providing a biomaterial allowing the controlled release (in time and in quantity) of one or more biological and / or chemical active agents.
- the present invention therefore relates to a porous biomaterial characterized in that it consists of a porous hydrophilic or amphiphilic polymer network (support network), the pores of which contain a gelled porous polymer network (filling network), and in which the pore diameter of the support network is greater than the pore diameter of the filling network.
- the inventors have in fact demonstrated that the presence of a filling network as defined above (in which the biological and / or chemical active ingredient will be contained) within a support network makes it possible to control the release (delayed release or prolonged) of said active ingredient, without, however, modifying the physico-chemical characteristics of the support network (shape, mechanical properties, exchange surface between the biomaterial and the biological medium, etc.).
- the hardness of the support network is greater than the hardness of the filling network, because the support network has a solidity ensured by covalent bonds, while the filling network has a solidity ensured by ionic interaction.
- the support network can consist of one or more resorbable or non-resorbable polymers.
- polymers which can be used as a support network mention may especially be made of caprolactone polyepsilons, polymers and copolymers of lactic and glycolic acid, albumin, casein, crosslinked gelatins, polyanhydrides, cellulose esters and ethers, acrylic and methacrylic polymers such as acrylates and methacrylates such as for example polyhydroxyethylmethacrylate and its derivatives, substituted or unsubstituted polyacrylamides such as poly- (N-acryloyl-2-amino-2-hydroxymethyl-1,3-propanediol ) and its derivatives (TRISACRYL ®), poly- (n-2-hydroxypropyl methacrylamide) and its derivatives, poly (vinyl alcohols) and polyurethanes
- acrylic polymers mention may especially be made of polymers formed from acrylic copolymers modified or not by ionized or ionizable functional groups such as groups (Cj-C) alkylamino
- the support network of the biomaterial according to the invention is a porous microsphere formed of acrylic copolymers modified by DEAE groups.
- Such microspheres are for example sold under the trade name DEAE-TRISACRYL® by the company BIOSEPRA.
- the filling network can consist of one or more resorbable polymers or not.
- polymers which can be used as a filling network there may be mentioned in particular alginates, pectins, hyaluronic acid, carrageenans, agarose, agaropectins, amyloses, amylopectins, arabino-galactans, cellulose and its derivatives such as for example methylcellulose and ethylcellulose, chitosan, tragacanth, gum arabic, guar gum, xanthans, dextrans, collagen and gelatins.
- alginates alginates, pectins, hyaluronic acid, carrageenans, agarose, agaropectins, amyloses, amylopectins, arabino-galactans, cellulose and its derivatives such as for example methylcellulose and ethylcellulose, chitosan, tragacanth, gum arabic, guar gum, xanthans, dextrans, collagen and gelatins.
- the nature of the polymers which can be used as a filling network can be chosen specifically according to the nature of the enzymes possibly present on the site of implantation of the biomaterial, so that these degrade the filling network in order to free up the assets.
- the polymers of the filling network can therefore also be chosen from azo-linked polymers which will be degraded by azoreductases of bacterial origin, the glucosidic polymers which will be degraded by digestive glucosidases, the mixed acrylic polymers- azo or acrylic-glucosidic or polymers comprising ester bonds which will be degraded by digestive esterases.
- the filling network is in the form of an alginate gel.
- Alginates are composed of linear sequences of homopolysaccharides composed of ⁇ - 1, 4-D-guluronane units and of ⁇ -l, 4-D-mannuronane units and linear sequences of heteropolysaccharides composed of linked units in positions 1,4 of ⁇ -L-guluronic and ⁇ -D-mannuronic acids (Ullmann's Encyclopedia of Industrial Chemistry, 1998, 25, 34-40).
- the properties of alginates are essentially determined by their molecular mass as well as by the respective proportions of the various saccharide units composing them, these proportions varying according to the species of brown algae from which they are extracted. The hardest gels are obtained from alginates containing a high proportion of ⁇ -L-guluronic acid units.
- alginates comprising from 30% to 75% of ⁇ -L-guluronic acid units.
- alginate gels which can be used as a filling network
- the diameter of the pores of the support network is greater than the diameter of the pores of the filling network.
- the diameter of the pores of the filling network is preferably such that it allows the diffusion of molecules whose molecular mass varies between 10 daltons (Da) and 10 6 Da approximately and even more particularly between 10 2 and 10 Da.
- the filling network of the biomaterial contains at least one biological and / or chemical active.
- the nature of the biological and / or chemical active agent (s) that may be contained in the pores of the filling network will vary depending on the applications envisaged and the size of the pores of the filling network.
- anti-inflammatory agents such as angiogenic agents, anti-mitotics, angiogenesis inhibitors, growth factors, vitamins, hormones, proteins, vaccines, peptides, antiseptics, antimicrobials such as antibiotics, and in general any agent for therapeutic, preventive or diagnostic purposes.
- the biomaterial according to the invention can be in various forms depending on the applications envisaged. It can in particular be in the form of film, block, sheet, rod, wire, particle such as for example a microsphere, or in any other form suitable for its use in the biomedical field, in particular as an implant.
- the biomaterial according to the invention is a porous microsphere consisting of acrylic copolymers modified or not by ionized or ionizable functional groups chosen from (Cj-C) alkylamino and (Cj -C4) alkylamino (Cj-C) alkyl, the pores of said microsphere being filled with a porous alginate gel, the pores of which contain at least one biological and / or chemical active.
- the invention also relates to a process for the preparation of such a biomaterial as defined above, characterized in that it comprises the following stages: a) the impregnation of at least one porous hydrophilic or amphiphilic polymer (support network ) with an aqueous solution (A) of at least one filler polymer in the liquid state, b) impregnation of said porous hydrophilic or amphiphilic polymer with an aqueous solution (B) of at least one agent capable of passing said polymer for filling from the liquid state to the gelled state, and optionally c) the impregnation of said porous hydrophilic or amphiphilic polymer with a composition (C) containing at least one biological and / or chemical active agent, said impregnation being able to be carried out concomitantly in steps a) and b) by addition of composition (C) in one and / or the other of solutions (A) and (B) or separately after steps a) and b).
- the support network is, in a first step, impregnated by means of a solution (A) as defined above, then in a second step, with a solution (B) as also defined above, the composition (C) being added to the solution (A) and / or (B).
- the concentration of filler polymer in the solution (A) preferably varies from 0.01 to 2% by weight relative to the total weight of the solution (A); this concentration can be gradually increased during the duration of operation a).
- the filling polymer is preferably chosen from collagen, gelatins and polysaccharides such as alginates, pectins, dextrans, and carrageenans.
- gelling agent capable of passing the filling polymer from a liquid state to a gelled state
- the gelling agent is preferably chosen by multivalent ions such as calcium ions.
- the amount of gelling agent will also vary depending on the amount of filling polymer in the liquid state which it is desired to gel and also according to the hardness of the gel which it is desired to obtain.
- This amount of gelling agent is preferably between 10% and 80% by weight relative to the weight of the filling polymer to be gelled.
- the impregnation steps can optionally be carried out with stirring, at a stirring speed preferably of between 150 and 2000 revolutions per minute.
- surfactants in the aqueous solutions (a) and / or (b), as well as in the composition (C) in order to increase the wettability of the porous hydrophilic or amphiphilic polymer and thus facilitate the impregnation thereof by the filler polymer.
- surfactants can be chosen from anionic, cationic, nonionic and amphoteric surfactants, nonionic surfactants being particularly preferred.
- the temperature at which the impregnation operations are carried out generally varies from approximately 20 ° C. to 90 ° C.
- the duration of each of the impregnation operations is variable and is preferably between 1 minute and approximately 24 hours.
- step a) is preferably carried out for a period of between 1 and 24 hours; step b) is preferably carried out during a period of between 2 and 24 hours and step c), when carried out separately from steps a) and b) is preferably carried out for a period of between 12 and 48 hours.
- the support network can optionally be rinsed, preferably with water.
- the biomaterial loaded or not with biological and / or chemical active agents thus obtained can be in various forms corresponding to the form of the starting hydrophilic or amphiphilic porous polymer (beads, microspheres, sheets, rods, films, etc.) and can be used, in particular in the biomedical field, as an implant (biomaterial not loaded with active) or device for the controlled release of at least one biological and / or chemical active.
- this biomaterial can in particular be used for the manufacture of vaccination, embolization, tissue reconstruction devices, bioactive implants, etc.
- compositions in particular of pharmaceutical, cosmetic, dermatological, dietetic or veterinary compositions.
- the biomaterial according to the invention can advantageously be used for the preparation of injectable solutions for intra-tissue or intra-vascular implantation.
- the present invention therefore also relates to an injectable solution for intra-tissue or intravascular implantation, characterized in that it contains at least one biomaterial as defined above.
- biomaterial when in the form of microspheres, it can in particular be used for the preparation of injectable solution for the production of embolizations.
- this injectable solution contains porous microspheres consisting of acrylic copolymers modified or not by groups ionized or ionizable functional groups chosen from (C ⁇ -C 4 ) alkylamino and (C ⁇ -C 4 ) alkylamino (C ⁇ -C 4 ) alkyl such as diethylaminoethyl groups, the pores of said microsphere being filled with a porous alginate gel ( embolization microspheres) whose pores optionally contain at least one biological and / or chemical active ingredient.
- porous microspheres consisting of acrylic copolymers modified or not by groups ionized or ionizable functional groups chosen from (C ⁇ -C 4 ) alkylamino and (C ⁇ -C 4 ) alkylamino (C ⁇ -C 4 ) alkyl such as diethylaminoethyl groups, the pores of said microsphere being filled with a porous alginate gel ( embolization microspheres) whose pores optionally contain at least one
- the invention also comprises other arrangements which will emerge from the description which follows, which refers to two examples of the preparation of biomaterials in accordance with the invention, and to a comparative study of the release kinetics an active ingredient (indomethacin).
- Acrylic microspheres sold under the name DEAE-TRIS ACRYL ® by the company Biosepra were rinsed with distilled water and then wrung by filtration of the solution of microspheres on a nylon filter of 80 ⁇ m using a vacuum pump .
- microspheres thus wrung were then treated according to the conditions appearing in Table I below.
- 1 g of microspheres, optionally previously dried under infrared radiation at 100 ° C for 10 min, were put to soak in a first alginate solution (MANUGEL ® DMB, MANUGEL ® DJX or KELTONE ® HVCR) initial alginate concentration [Cl], for 1 hour, with or without agitation or sonication.
- the microspheres were then allowed to soak in a second solution of the same alginate of final alginate concentration [C2] for 24 hours without stirring.
- microspheres were then drained as above and then redispersed in water with stirring at 600 revolutions per minute, then a solution of calcium ions was added. The whole was subjected to flash agitation for a few seconds and then was kept under agitation at 200 rpm for 1 h 30 min.
- microspheres A to K obtained above in Example 1 were then impregnated by immersion in a solution of indomethacin at 5 g / l for 12 to 48 hours, to obtain microspheres loaded with indomethacin.
- Control microspheres differ from microspheres in accordance with the invention in that indomethacin is directly contained in the pores of the support network instead of being contained in the pores of the filling network (alginate gel).
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Abstract
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL15605001A IL156050A0 (en) | 2000-11-22 | 2001-11-19 | Porous polymeric biomaterials, preparation method and uses |
AU2002220795A AU2002220795A1 (en) | 2000-11-22 | 2001-11-19 | Porous polymeric biomaterials, preparation method and uses |
EP01997318A EP1335759A1 (fr) | 2000-11-22 | 2001-11-19 | Biomateriaux polymeres poreux, procede de preparation et utilisations |
CA002432804A CA2432804A1 (fr) | 2000-11-22 | 2001-11-19 | Biomateriaux polymeres poreux, procede de preparation et utilisations |
US10/432,389 US20040071776A1 (en) | 2000-11-22 | 2001-11-19 | Porous plymeric biomaterials, preparation method and uses |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR0015065A FR2816847B1 (fr) | 2000-11-22 | 2000-11-22 | Biomateriaux polymeriques poreux, procede de preparation et utilisations |
FR00/15065 | 2000-11-22 |
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WO2002041928A1 true WO2002041928A1 (fr) | 2002-05-30 |
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ID=8856749
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PCT/FR2001/003623 WO2002041928A1 (fr) | 2000-11-22 | 2001-11-19 | Biomateriaux polymeres poreux, procede de preparation et utilisations |
Country Status (7)
Country | Link |
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US (1) | US20040071776A1 (fr) |
EP (1) | EP1335759A1 (fr) |
AU (1) | AU2002220795A1 (fr) |
CA (1) | CA2432804A1 (fr) |
FR (1) | FR2816847B1 (fr) |
IL (1) | IL156050A0 (fr) |
WO (1) | WO2002041928A1 (fr) |
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DE102004019241A1 (de) * | 2004-04-16 | 2005-11-03 | Cellmed Ag | Injizierbare vernetzte und unvernetzte Alginate und ihre Verwendung in der Medizin und in der ästhetischen Chirurgie |
CN109195642A (zh) * | 2016-06-07 | 2019-01-11 | 医药研究产品有限公司 | 包含核酸、壳聚糖和透明质酸的组织增强用填充组合物及其制备方法 |
CN110368528A (zh) * | 2019-06-12 | 2019-10-25 | 北京大学口腔医学院 | 一种可注射多孔微芯片及其多级分时递送载体的制备方法 |
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EP1730516A1 (fr) * | 2004-03-30 | 2006-12-13 | Pfizer Products Incorporated | Procede et dispositif pour l'evaluation de compositions pharmaceutiques |
EP1988942B1 (fr) * | 2006-03-01 | 2011-07-27 | FMC Biopolymer AS | Composite gélifié |
US20100062073A1 (en) * | 2006-11-29 | 2010-03-11 | Ronald Arthur Beyerinck | Pharmaceutical compositions comprising nanoparticles comprising enteric polymers casein |
US20100119612A1 (en) * | 2007-04-17 | 2010-05-13 | Bend Research, Inc | Nanoparticles comprising non-crystalline drug |
US20100080852A1 (en) * | 2007-05-03 | 2010-04-01 | Ronald Arthur Beyerinck | Phamaceutical composition comprising nanoparticles and casein |
WO2008135828A2 (fr) * | 2007-05-03 | 2008-11-13 | Pfizer Products Inc. | Nanoparticules comprenant un médicament, de l'éthylcellulose et un sel biliaire |
WO2008135855A2 (fr) * | 2007-05-03 | 2008-11-13 | Pfizer Products Inc. | Nanoparticules contenant un inhibiteur de la protéine de transfert d'ester de cholestéryle et un polymère non ionisable |
US8147769B1 (en) * | 2007-05-16 | 2012-04-03 | Abbott Cardiovascular Systems Inc. | Stent and delivery system with reduced chemical degradation |
EP2162120B1 (fr) * | 2007-06-04 | 2016-05-04 | Bend Research, Inc | Nanoparticules comportant un polymère cellulosique non ionisable et un copolymère bloc amphiphile non ionisable |
WO2008149230A2 (fr) | 2007-06-04 | 2008-12-11 | Pfizer Products Inc. | Nanoparticules comprenant un médicament, un polymère cellulosique non ionisable et du tocophéryl polyéthylène glycol succinate |
US20100215747A1 (en) * | 2007-07-13 | 2010-08-26 | Corey Jay Bloom | Nanoparticles comprising ionizable, poorly water soluble cellulosic polymers |
WO2009073215A1 (fr) * | 2007-12-06 | 2009-06-11 | Bend Research, Inc. | Compositions pharmaceutiques comprenant des nanoparticules et une matière de remise en suspension |
WO2009073216A1 (fr) * | 2007-12-06 | 2009-06-11 | Bend Research, Inc. | Nanoparticules comprenant un polymère non ionisable et un copolymère de méthacrylate fonctionnalisé par amine |
EP2485777B1 (fr) | 2009-10-06 | 2013-12-11 | Regents of the University of Minnesota | Microsphères biorésorbables pour embolisation |
US8936795B2 (en) | 2012-12-19 | 2015-01-20 | Regents Of The University Of Minnesota | Liquid embolic material including carboxymethyl chitosan crosslinked with carboxymethyl cellulose |
EP2764876A1 (fr) * | 2013-02-11 | 2014-08-13 | Lacerta Technologies Inc. | Matériau de substitution osseuse avec revêtement biologiquement actif |
US10182979B2 (en) | 2016-03-22 | 2019-01-22 | Regents Of The University Of Minnesota | Biodegradable microspheres |
CN116870243B (zh) * | 2023-08-10 | 2024-01-19 | 广州创赛生物医用材料有限公司 | 一种具有止血抗炎作用的水凝胶及其制备方法和应用 |
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- 2000-11-22 FR FR0015065A patent/FR2816847B1/fr not_active Expired - Fee Related
-
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- 2001-11-19 WO PCT/FR2001/003623 patent/WO2002041928A1/fr not_active Application Discontinuation
- 2001-11-19 US US10/432,389 patent/US20040071776A1/en not_active Abandoned
- 2001-11-19 IL IL15605001A patent/IL156050A0/xx unknown
- 2001-11-19 EP EP01997318A patent/EP1335759A1/fr not_active Withdrawn
- 2001-11-19 AU AU2002220795A patent/AU2002220795A1/en not_active Abandoned
- 2001-11-19 CA CA002432804A patent/CA2432804A1/fr not_active Abandoned
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DE102004019241A1 (de) * | 2004-04-16 | 2005-11-03 | Cellmed Ag | Injizierbare vernetzte und unvernetzte Alginate und ihre Verwendung in der Medizin und in der ästhetischen Chirurgie |
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CN109195642A (zh) * | 2016-06-07 | 2019-01-11 | 医药研究产品有限公司 | 包含核酸、壳聚糖和透明质酸的组织增强用填充组合物及其制备方法 |
CN109195642B (zh) * | 2016-06-07 | 2021-12-10 | 医药研究有限公司 | 包含核酸、壳聚糖和透明质酸的组织增强用填充组合物及其制备方法 |
CN110368528A (zh) * | 2019-06-12 | 2019-10-25 | 北京大学口腔医学院 | 一种可注射多孔微芯片及其多级分时递送载体的制备方法 |
CN110368528B (zh) * | 2019-06-12 | 2021-01-29 | 北京大学口腔医学院 | 一种可注射多孔微芯片及其多级分时递送载体的制备方法 |
Also Published As
Publication number | Publication date |
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FR2816847B1 (fr) | 2006-07-14 |
IL156050A0 (en) | 2003-12-23 |
EP1335759A1 (fr) | 2003-08-20 |
US20040071776A1 (en) | 2004-04-15 |
CA2432804A1 (fr) | 2002-05-30 |
AU2002220795A1 (en) | 2002-06-03 |
FR2816847A1 (fr) | 2002-05-24 |
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