WO2005012364A2 - Matrice complexe a usage biomedical - Google Patents
Matrice complexe a usage biomedical Download PDFInfo
- Publication number
- WO2005012364A2 WO2005012364A2 PCT/FR2004/002052 FR2004002052W WO2005012364A2 WO 2005012364 A2 WO2005012364 A2 WO 2005012364A2 FR 2004002052 W FR2004002052 W FR 2004002052W WO 2005012364 A2 WO2005012364 A2 WO 2005012364A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymer
- matrix
- chains
- matrix according
- natural origin
- Prior art date
Links
- 239000011159 matrix material Substances 0.000 title claims abstract description 59
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- 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 9
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- KXCLCNHUUKTANI-RBIYJLQWSA-N keratan Chemical compound CC(=O)N[C@@H]1[C@@H](O)C[C@@H](COS(O)(=O)=O)O[C@H]1O[C@@H]1[C@@H](O)[C@H](O[C@@H]2[C@H](O[C@@H](O[C@H]3[C@H]([C@@H](COS(O)(=O)=O)O[C@@H](O)[C@@H]3O)O)[C@H](NC(C)=O)[C@H]2O)COS(O)(=O)=O)O[C@H](COS(O)(=O)=O)[C@@H]1O KXCLCNHUUKTANI-RBIYJLQWSA-N 0.000 claims description 8
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 7
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- SQDAZGGFXASXDW-UHFFFAOYSA-N 5-bromo-2-(trifluoromethoxy)pyridine Chemical compound FC(F)(F)OC1=CC=C(Br)C=N1 SQDAZGGFXASXDW-UHFFFAOYSA-N 0.000 claims description 5
- 229920001287 Chondroitin sulfate Polymers 0.000 claims description 5
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- AFOSIXZFDONLBT-UHFFFAOYSA-N divinyl sulfone Chemical compound C=CS(=O)(=O)C=C AFOSIXZFDONLBT-UHFFFAOYSA-N 0.000 claims description 5
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- 241000282412 Homo Species 0.000 claims description 4
- 241000282414 Homo sapiens Species 0.000 claims description 4
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- 102000039446 nucleic acids Human genes 0.000 claims description 4
- 108020004707 nucleic acids Proteins 0.000 claims description 4
- 150000007523 nucleic acids Chemical class 0.000 claims description 4
- 239000013060 biological fluid Substances 0.000 claims description 3
- 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 2
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 claims description 2
- 229940072056 alginate Drugs 0.000 claims description 2
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- 150000007513 acids Chemical class 0.000 claims 1
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- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- SHKUUQIDMUMQQK-UHFFFAOYSA-N 2-[4-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COCCCCOCC1CO1 SHKUUQIDMUMQQK-UHFFFAOYSA-N 0.000 description 16
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 16
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- 229940010747 sodium hyaluronate Drugs 0.000 description 9
- YWIVKILSMZOHHF-QJZPQSOGSA-N sodium;(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- Chemical compound [Na+].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 YWIVKILSMZOHHF-QJZPQSOGSA-N 0.000 description 9
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- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 6
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- 239000008363 phosphate buffer Substances 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 3
- 229930003268 Vitamin C Natural products 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 3
- 210000002540 macrophage Anatomy 0.000 description 3
- 230000001225 therapeutic effect Effects 0.000 description 3
- 235000019154 vitamin C Nutrition 0.000 description 3
- 239000011718 vitamin C Substances 0.000 description 3
- KLYCPFXDDDMZNQ-UHFFFAOYSA-N Benzyne Chemical compound C1=CC#CC=C1 KLYCPFXDDDMZNQ-UHFFFAOYSA-N 0.000 description 2
- 229920002683 Glycosaminoglycan Polymers 0.000 description 2
- 102000004157 Hydrolases Human genes 0.000 description 2
- 108090000604 Hydrolases Proteins 0.000 description 2
- 229920001954 Restylane Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
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- 150000002148 esters Chemical class 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
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- 238000006467 substitution reaction Methods 0.000 description 2
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
- AOBIOSPNXBMOAT-UHFFFAOYSA-N 2-[2-(oxiran-2-ylmethoxy)ethoxymethyl]oxirane Chemical compound C1OC1COCCOCC1CO1 AOBIOSPNXBMOAT-UHFFFAOYSA-N 0.000 description 1
- 108010008457 Artecoll Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
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- YJPIGAIKUZMOQA-UHFFFAOYSA-N Melatonin Natural products COC1=CC=C2N(C(C)=O)C=C(CCN)C2=C1 YJPIGAIKUZMOQA-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
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- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
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- 150000004805 acidic polysaccharides Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
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- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
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- 125000004122 cyclic group Chemical group 0.000 description 1
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- 229920000578 graft copolymer Polymers 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 229940072322 hylan Drugs 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000011866 long-term treatment Methods 0.000 description 1
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- 230000001050 lubricating effect Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- DRLFMBDRBRZALE-UHFFFAOYSA-N melatonin Chemical compound COC1=CC=C2NC=C(CCNC(C)=O)C2=C1 DRLFMBDRBRZALE-UHFFFAOYSA-N 0.000 description 1
- 229960003987 melatonin Drugs 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 231100000019 skin ulcer Toxicity 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000005070 sphincter Anatomy 0.000 description 1
- 150000003431 steroids Chemical class 0.000 description 1
- 210000001179 synovial fluid Anatomy 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- 238000011282 treatment Methods 0.000 description 1
- 210000003708 urethra Anatomy 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
- 239000008154 viscoelastic solution Substances 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- 210000001260 vocal cord Anatomy 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/715—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
- A61K31/726—Glycosaminoglycans, i.e. mucopolysaccharides
- A61K31/728—Hyaluronic acid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/02—Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
- C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
- C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
- C08B37/0063—Glycosaminoglycans or mucopolysaccharides, e.g. keratan sulfate; Derivatives thereof, e.g. fucoidan
- C08B37/0072—Hyaluronic acid, i.e. HA or hyaluronan; Derivatives thereof, e.g. crosslinked hyaluronic acid (hylan) or hyaluronates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
Definitions
- the present invention relates to a biocompatible matrix, consisting of at least one polymer of natural origin, highly functionalized, allowing the replacement of biological fluids, the separation of tissues or tissue augmentation.
- the matrix of the present invention is characterized by a long remanence in vivo, obtained by delaying its chemical, biological and mechanical degradation.
- the present invention provides a method and compositions in the form of a complex matrix of at least one polymer of natural origin, for obtaining medical devices (pharmacologically active) intended for augmentation, tissue separation or viscosupplementation. , completely biodegradable but characterized by a long persistence in vivo.
- Tissue augmentation is desired both in the case of therapeutic applications and for cosmetic purposes.
- certain tissues need to be enlarged to ensure their function; this can be the case with the vocal cords, the esophagus, the sphincter of the urethra, other muscles ...
- Patients can resort to cosmetic surgery for filling wrinkles, masking scars, lip augmentation ...
- Particles of silicone, ceramic, carbon, or metal (US-A-5451406, US-A-5792478, US-A- 2002151466), fragments of polytetrafluoroethylene, glass or synthetic polymers (US-A-2002025340) , and collagen beads were also used but the results were disappointing considering the side reactions, the biological degradation and the migration of the residual products.
- particles have at least one of these drawbacks: too large a diameter or an irregular shape which causes the particles to stick to each other, which can make injection difficult through a fine needle, the too fragile particles can break during the injection, the injection of too small particles induces a fast digestion by the macrophages and other components of the lymphatic system, the injected particles can move and do not adhere to the surrounding cells.
- EP-A-0466300 proposes the injection of a viscoelastic gel composed of a matrix dispersed in a liquid phase, the two phases being composed of hylan, high molecular weight hyaluronate of animal origin, crosslinked and extracted. Esters of hyaluronic acid and crosslinked derivatives of hyaluronic acid have been developed with the aim of increasing the absorption times of this glycosaminoglycan and therefore obtaining a longer residence time.
- Restylane® a biphasic gel consisting of a fluid phase (non-crosslinked hyaluronate), and a very crosslinked phase. If inter or intramolecular bridging of polysaccharides or esters of acidic polysaccharides are useful for many applications, for example the prevention of post-surgical adhesions (EP-A-0850074, US-A-4851521, EP-A-0341745) , these products cannot constitute a long-lasting effect taking into account the high level of enzymatic degradation and the short lifespan of the ester bridges which, unlike the ether bonds, are degradable in physiological environments (US-A-4963666).
- EP-A-0 749 982 proposes grafting an antioxidant to a matrix with a low grafting rate.
- the principle of the present invention is based on the occupation of a large number of sites of the polymer chains to retard chemical and enzymatic attacks directly on the main chain of the polymer.
- the grafting of small molecules coupled with crosslinking induces an increase in the density of the matrix, consequently the time necessary for it to be degraded, while limiting its embrittlement induced by too high a degree of crosslinking.
- the coupling of two types of functionalization, crosslinking and grafting also makes it possible to increase the ease of use of a matrix intended to be injected by compared to a matrix which has the same number of sites occupied on the main chain of the polymer but whose degree of crosslinking is greater.
- the effect allowing the long remanence of the composition can be amplified if the grafted molecules have antioxidant properties.
- Antioxidants can also be dispersed in the matrix.
- the use of cellulose derivatives or other polymers naturally absent in humans for the constitution of the product also makes it possible to delay the degradation of the matrix taking into account the lack of specific hydrolases.
- the word site designates all the points of the polymer chain liable to be attacked; they can be pendant functional groups such as hydroxy or carboxy groups or chain chains such as ether bridges.
- the long-lasting effect of the medical device makes it possible to space out medical procedures and therefore improve the quality of life for patients.
- Another object of the present invention is to provide the same composition containing one or more therapeutically active molecules.
- the present invention provides a long-lasting, biocompatible, complex single-phase matrix composed of at least one polymer of highly functional natural origin.
- long remanence is meant a lifetime in vivo greater than that of a product having an identical degree of functionalization but obtained by another process than that of the present invention, most often characterized by a simple crosslinking.
- the substance intended for viscosupplementation or tissue augmentation is composed of at least one polymer with a molecular weight greater than 1 OO'OOO Da, selected from polysaccharides such as hyaluronic acid, chondroitin sulfate, keratane, keratane sulfate , heparin, heparan sulfate, cellulose and its derivatives, xanthans and alginates, proteins, or nucleic acids, this polymer being highly functionalized by the grafting of small chains and a crosslinking allowing the creation of a matrix.
- matrix we therefore mean a three-dimensional network made up of polymers of biological origin doubly functionalized, by crosslinking and grafting.
- the crosslinking agent can be chosen from, in particular, di- or polyfunctional epoxides, for example 1,4-butanediol diglycidyl ether (also called 1,4-bis (2,3-epoxypropoxy) butane), l- (2, 3-epoxypropyl) 2,3-epoxy cyclohexane and 1,2-ethanediol diglycidyl ether, epihalohydrins and divinylsulfone.
- the crosslinking rate defined as the ratio between the number of moles of the crosslinking agent ensuring the bridging of the polymer chains and the number of moles of polymer units, is between 0.5 and 25% in the case of injectable products, 25 to 50% in the case of solids.
- small chains can be grafted by ionic bonds or covalently, preferably by etherification, on the matrix.
- These grafted chains will occupy a large number of matrix sites, which will make it possible to significantly increase the life of the product without modifying the mechanical or rheological character of the polymer constituting the matrix.
- biological and chemical protection made up of "lures".
- the chains grafted onto the functional groups of the hydroxy or carboxy type probably protect on the one hand directly these functional groups which have reacted and on the other hand indirectly the other sensitive sites by steric hindrance.
- the grafted chains can be polymers of natural origin of small size comprising attackable sites more available than the masked sites of the matrix, or polymers not recognized by the enzymes of the organism. In the latter case, they may be cellulose derivatives or derivatives of other biopolymers not naturally present in human beings which will not be degraded by the enzymes of the organism, but which will be susceptible to attack by free radicals and other reactive radicals. It may for example be carboxymethylcellulose.
- the grafted chains can also be non-polymeric chains having antioxidant properties or properties that inhibit degradation reactions of the polymer matrix. It may for example be vitamins, enzymes or cyclic molecules.
- the grafting rate which is defined as the ratio between the number of moles of grafted molecules or the number of moles of units of the grafted polymer and the number of moles of units of the crosslinked polymer (s) is included between 10 and 40%.
- the grafting of small chains that is to say of size less than 50,000 Da, and preferably of the order of 10,000 Da or less, at numerous sites in the polymer matrix, makes it possible to maintain the injectable nature of the final product since the crosslinking rate is not increased, while the presence of these grafted chains prevents the matrix from being attacked by the surrounding medium and ensures a longer remanence after the injection.
- the grafted molecules can be grafted by covalent bond to the main chains, directly for example by esterification or etherification of hydroxy or carboxy groups or by means of a bi or polyfunctional molecule chosen from epoxides, epihalohydrins or divinylsulfone.
- a functionalization process has significant advantages compared to a simple crosslinking.
- the grafting and crosslinking can take place at the same time, or the grafting can precede the crosslinking, or vice versa.
- a molecule with antioxidant properties can also be dispersed in the highly functionalized matrix.
- vitamin C a rare water-soluble molecule with antioxidant properties
- This effect can be particularly advantageous in the case of dermatological and cosmetic applications, in order to improve the elasticity of the skin.
- Vitamin A which has many advantages (antioxidant action, influence on tissue development and participation in skin maintenance) could also be dispersed in this highly modified matrix which, by its density, would allow a gradual release of the pharmacologically active agent.
- Melatonin which would be released at a very low rate, is a powerful antioxidant, skin regenerator and defender of the immune system which could also be dispersed in the matrix.
- FIG. 1 shows the much slower degradation as a function of time of injectable products according to the present invention and of two commercially available products, Juvéderm® and Restylane® (polysaccharide gel composition from US 5827937).
- the invention thus relates to a complex matrix consisting of at least one biocompatible polymer of natural origin, crosslinked and onto which are grafted chains of molecular weight less than 50,000 Da with a grafting rate of 10 to 40%.
- the biocompatible polymer of natural origin constituting the matrix is advantageously chosen from polysaccharides such as hyaluronic acid, chondroitin sulfate, keratan, keratan sulfate, heparin, heparan sulfate, cellulose and its derivatives, xanthans and alginates, proteins, or nucleic acids.
- polysaccharides such as hyaluronic acid, chondroitin sulfate, keratan, keratan sulfate, heparin, heparan sulfate, cellulose and its derivatives, xanthans and alginates, proteins, or nucleic acids.
- the biocompatible polymer of natural origin is a polymer which is not naturally present in humans such as a cellulose derivative, a xanthan or an alginate, which is crosslinked with at least one polymer naturally present in l human being chosen from polysaccharides such as hyaluronic acid, chondroitin sulfate, keratan, keratan sulfate, heparin, heparate sulfate, xanthans and alginates, proteins, or nucleic acids.
- polysaccharides such as hyaluronic acid, chondroitin sulfate, keratan, keratan sulfate, heparin, heparate sulfate, xanthans and alginates, proteins, or nucleic acids.
- the crosslinking rate defined as the ratio between the number of moles of the crosslinking agent ensuring the bridging of the polymer chains and the number of moles of polymer units, is between 0.5 and 50%, in particular between 0, 5 and 25% in the case of injectable products, and between 25 to 50% in the case of solid products.
- the crosslinking agent ensuring the bridging of the chains can come from a bi or poly-functional molecule chosen by the epoxides, the epihalohydrins and the divinylsulfone.
- the matrix may contain antioxidants, vitamins or other dispersed pharmacologically active agents.
- the invention also relates to the use of the matrix defined above to replace, fill, or supplement a biological fluid or tissues.
- the invention also relates to a process for obtaining a slightly biodegradable biocompatible matrix consisting of at least one polymer of natural origin, characterized in that it consists: - on the one hand, of grafting small chains of molecular weight less than 50 000 Da with a grafting rate of 10 to 40%, - on the other hand, to crosslink the main chains of the polymer together, to create a homogeneous matrix.
- BDDE 1,4-butanediol diglycidyl ether
- BDDE 1,4-butanediol diglycidyl ether
- BDDE 1,4-butanediol diglycidyl ether
- the grafting rate calculated assuming that the carboxylic functions are all in the form of the sodium salt and that the carboxymethylcellulose has a substitution rate of 0.9, is 24.6%.
- Rheological studies have shown a slower decrease in these properties for the gel from Example 2 (gel 2) than for that from Example 1 (gel 1) when these gels are stored at 37 ° C.
- degradation of gel 2 is likely to be slower than that gel 1, which itself must be degraded less quickly than a gel synthesized according to the same process but composed exclusively of sodium hyaluronate.
- BDDE 1,4-butanediol diglycidyl ether
- BDDE phosphate buffer solution
- BDDE 1,4-butanediol diglycidyl ether
- BDDE 1,4-butanediol diglycidyl ether
- Rate of grafting (m e h arine P / M arine h e P) / ((m M A / M H A) + (C m C / M CMC)) ⁇ 10,3% with: m: mass in g M: molecular mass of the polymer motif in g / mol HA: hyaluronate CMC: carboxymethylcellulose
- m mass in g M: molecular mass of the polymer motif in g / mol
- HA hyaluronate
- CMC carboxymethylcellulose
- This method is based on the measurement of the force necessary for the ejection of the different gels obtained through a type needle.
- 27G Each gel obtained is placed in a 1 ml syringe, the tip of which is provided with a 27G type needle.
- the syringe is kept vertical thanks to a rack and a mass presses on the syringe plunger, at a constant speed defined by the user.
- a sensor measures the force required to eject the product.
- the ejection speed is 75 mm / min and in the second series of examples, the ejection speed is 15 mm / min.
- Table 1 The values of the ejection force measured for the gels of Examples 1 to 7 are given in Tables 1 and 2 below. Table 1
- the crosslinked and grafted gels according to the invention have a lower ejection force (and therefore better injectability) than that of the crosslinked gels (comparison of Example 2 and Example 3).
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Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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JP2006521630A JP2007500027A (ja) | 2003-07-30 | 2004-07-30 | 生物医学的な使用のための複合マトリックス |
CN2004800216528A CN1829743B (zh) | 2003-07-30 | 2004-07-30 | 生物医用的复合基质 |
CA002534033A CA2534033A1 (fr) | 2003-07-30 | 2004-07-30 | Matrice complexe a usage biomedical |
EP04786014A EP1648942A2 (fr) | 2003-07-30 | 2004-07-30 | Matrice complexe a usage biomedical |
BRPI0413086-3A BRPI0413086A (pt) | 2003-07-30 | 2004-07-30 | matriz complexa, utilização da mesma, e processo de preparação de uma matriz biocompatìvel pouco biodegradável |
US10/565,442 US20060246137A1 (en) | 2003-07-30 | 2004-07-30 | Complex matrix for biomedical use |
AU2004261752A AU2004261752B2 (en) | 2003-07-30 | 2004-07-30 | Complex matrix for biomedical use |
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FR0309401 | 2003-07-30 | ||
FR0309401 | 2003-07-30 |
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WO2005012364A2 true WO2005012364A2 (fr) | 2005-02-10 |
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US (1) | US20060246137A1 (fr) |
EP (1) | EP1648942A2 (fr) |
JP (1) | JP2007500027A (fr) |
KR (1) | KR20070012306A (fr) |
CN (1) | CN1829743B (fr) |
AU (1) | AU2004261752B2 (fr) |
BR (1) | BRPI0413086A (fr) |
CA (1) | CA2534033A1 (fr) |
RU (1) | RU2360928C2 (fr) |
WO (1) | WO2005012364A2 (fr) |
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2004
- 2004-07-30 BR BRPI0413086-3A patent/BRPI0413086A/pt not_active IP Right Cessation
- 2004-07-30 KR KR1020067002010A patent/KR20070012306A/ko not_active Ceased
- 2004-07-30 EP EP04786014A patent/EP1648942A2/fr not_active Withdrawn
- 2004-07-30 WO PCT/FR2004/002052 patent/WO2005012364A2/fr active Application Filing
- 2004-07-30 AU AU2004261752A patent/AU2004261752B2/en not_active Ceased
- 2004-07-30 US US10/565,442 patent/US20060246137A1/en not_active Abandoned
- 2004-07-30 JP JP2006521630A patent/JP2007500027A/ja active Pending
- 2004-07-30 CN CN2004800216528A patent/CN1829743B/zh not_active Expired - Fee Related
- 2004-07-30 CA CA002534033A patent/CA2534033A1/fr not_active Abandoned
- 2004-07-30 RU RU2006102198/04A patent/RU2360928C2/ru not_active IP Right Cessation
Non-Patent Citations (1)
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7867736B2 (en) | 2006-03-08 | 2011-01-11 | Purac Biochem B.V. | Method for preparing an organic amine—lactic acid complex |
FR2909285A1 (fr) * | 2006-12-01 | 2008-06-06 | Anteis Sa | "utilisation d'un gel anti-adhesif et anti fibrotique" |
US8574629B2 (en) | 2008-08-01 | 2013-11-05 | Anteis S.A. | Injectable hydrogel with an enhanced remanence and with an enhanced ability to create volume |
US9861570B2 (en) | 2008-09-02 | 2018-01-09 | Allergan Holdings France S.A.S. | Threads of hyaluronic acid and/or derivatives thereof, methods of making thereof and uses thereof |
US11154484B2 (en) | 2008-09-02 | 2021-10-26 | Allergan Holdings France S.A.S. | Threads of hyaluronic acid and/or derivatives thereof, methods of making thereof and uses thereof |
WO2010052430A2 (fr) | 2008-11-07 | 2010-05-14 | Anteis S.A. | Composition injectable a base d'acide hyaluronique ou l'un de ses sels, de polyols et de lidocaïne, sterilisee a la chaleur |
US8455465B2 (en) | 2008-11-07 | 2013-06-04 | Anteis S.A. | Heat sterilised injectable composition of hyaluronic acid or one of the salts thereof, polyols and lidocaine |
EP2676658A1 (fr) | 2008-11-07 | 2013-12-25 | Anteis SA | Composition injectable à base d'acide hyaluronique, de polyol(s) et de lidocaïne, stérilisée à la chaleur |
EP2676658B1 (fr) | 2008-11-07 | 2015-09-16 | Anteis SA | Composition injectable à base d'acide hyaluronique, de polyol(s) et de lidocaïne, stérilisée à la chaleur |
WO2013079889A1 (fr) | 2011-12-02 | 2013-06-06 | Laboratoires Vivacy | Procédé de substitution et réticulation simultanées d'un polysaccharide via ses fonctions hydroxyles |
US9175097B2 (en) | 2011-12-02 | 2015-11-03 | Laboratoires Vivacy | Process for the simultaneous substitution and crosslinking of a polysaccharide via its hydroxyl functional groups |
WO2015043757A1 (fr) | 2013-09-27 | 2015-04-02 | Anteis S.A. | Procédé d'obtention d'un hydrogel injectable à base d'aide hyaluronique contenant de la lidocaïne ajoutée sous forme pulvérulente, et un agent alcalin, stérilisé par la chaleur |
Also Published As
Publication number | Publication date |
---|---|
BRPI0413086A (pt) | 2006-10-03 |
RU2360928C2 (ru) | 2009-07-10 |
AU2004261752B2 (en) | 2010-10-28 |
CN1829743A (zh) | 2006-09-06 |
RU2006102198A (ru) | 2007-08-20 |
EP1648942A2 (fr) | 2006-04-26 |
US20060246137A1 (en) | 2006-11-02 |
WO2005012364A3 (fr) | 2005-06-02 |
KR20070012306A (ko) | 2007-01-25 |
CN1829743B (zh) | 2010-06-30 |
JP2007500027A (ja) | 2007-01-11 |
AU2004261752A1 (en) | 2005-02-10 |
CA2534033A1 (fr) | 2005-02-10 |
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