WO2017073739A1 - 薬物徐放性医療用コンタクトレンズ - Google Patents
薬物徐放性医療用コンタクトレンズ Download PDFInfo
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- WO2017073739A1 WO2017073739A1 PCT/JP2016/082093 JP2016082093W WO2017073739A1 WO 2017073739 A1 WO2017073739 A1 WO 2017073739A1 JP 2016082093 W JP2016082093 W JP 2016082093W WO 2017073739 A1 WO2017073739 A1 WO 2017073739A1
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- drug
- contact lens
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- drugs
- sustained
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
- G02C7/049—Contact lenses having special fitting or structural features achieved by special materials or material structures
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- 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
- A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L27/44—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
-
- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P27/00—Drugs for disorders of the senses
- A61P27/02—Ophthalmic agents
- A61P27/06—Antiglaucoma agents or miotics
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F30/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal
- C08F30/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal
- C08F30/08—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
-
- 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
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/16—Materials or treatment for tissue regeneration for reconstruction of eye parts, e.g. intraocular lens, cornea
Definitions
- the present invention relates to a drug sustained-release medical contact lens, and more particularly to a drug sustained-release medical contact lens that is optimal for a hard contact lens or a soft contact lens among contact lenses.
- the first treatment as an option for treating diseases in the ophthalmic field is to treat with eye drops that are easy to handle.
- eye drops are easy to handle, but the instilled drug follows a route that is instantly diluted by tears and blinks and discharged from the punctum.
- Non-patent Document 1 Non-patent Document 1 that approximately 99% of the administered drugs do not reach the orbit, and the instilled drug is retained in the conjunctival sac for a long time. Is known to be extremely difficult. For this reason, in order to improve the transferability of drugs into the orbit, methods such as increasing the number of instillations per day or increasing the amount of instillation per time can be considered, but both are risks of side effects. Is not considered to be a better treatment.
- Patent Document 1 Patent Document 2, Non-Patent Document 2
- Patent Document 1 Patent Document 1
- Patent Document 2 Non-Patent Document 2
- the drugs under investigation are limited to water-soluble drugs (Patent Document 1, Patent Document 2, Non-Patent Document 2). This is usually because contact lenses are often stored in water, such as a preservative solution, and when mixed with water-insoluble compounds, white turbidity, precipitation, etc. may occur and may not be used as contact lenses. It is thought that water-soluble drugs are frequently used.
- An object of the present invention is to provide a drug sustained-release medical contact lens that retains a water-insoluble and pharmacologically active component in a contact lens, imparts sustained drug release, and is excellent in oxygen permeability. is there.
- the present inventors have determined that a drug sustained-release medical contact containing a specific amount of a silicone polymer having a specific structure and a drug having a specific range of solubility, respectively.
- the present inventors have found that a lens can solve the above-mentioned problems and have completed the present invention. That is, the present invention includes the following [1] to [8].
- Drug sustained-release medical use comprising a polymer (P) having a structural unit represented by the formula (1) and a drug (Q) having a solubility in water of 0.00001 to 3.3% Contact lens for sustained drug release for medical use, wherein the polymer (P) content is 90 to 99.99999 mass% and the drug (Q) content is 0.00001 to 10 mass% .
- Y 1 to Y 9 each independently represents an alkyl group having 1 to 4 carbon atoms.
- N represents an integer of 0 to 3.
- Z 1 represents a hydrogen atom, a methyl group, or CH 2 —C ( ⁇ O) —X, wherein X represents one or more hydroxyl groups, and the main chain may contain one oxygen atom and one nitrogen atom.
- Z 2 represents a carbon atom or C ( ⁇ O) —O— (CH 2 ) 2 —O—C ( ⁇ O) — (CH 2 ) 2 —C. .)
- Y 1 to Y 9 each independently represents an alkyl group having 1 to 4 carbon atoms.
- N represents an integer of 0 to 3.
- a, b and c are each independently an integer of 0 or 1)
- R represents a hydrogen atom or a methyl group.
- Y 1 to Y 9 each independently represents an alkyl group having 1 to 4 carbon atoms.
- N represents an integer of 0 to 3.
- a, b and c are each independently an integer of 0 or 1)
- X represents a monovalent organic group having 2 to 6 carbon atoms, which may contain one or more hydroxyl groups and one oxygen atom or nitrogen atom in the main chain.
- the polymer (P) is a polymer having a structural unit based on methacryloyloxyethyl succinate 3- [tris (trimethylsiloxy) silyl] propyl, and the drug (Q) is latanoprost, The drug sustained-release medical contact lens according to [1].
- a drug having a polymer (P) having a structural unit represented by the formula (1) in a content of 90 to 99.99999 mass% and a water solubility of 0.00001 to 3.3% A method for sustained drug release, wherein a drug sustained-release medical contact lens having a Q) content of 0.00001 to 10% by mass is used for mammals including humans.
- Y 1 to Y 9 each independently represents an alkyl group having 1 to 4 carbon atoms.
- N represents an integer of 0 to 3.
- Z 1 represents a hydrogen atom, a methyl group, or CH 2 —C ( ⁇ O) —X, wherein X represents one or more hydroxyl groups, and the main chain may contain one oxygen atom and one nitrogen atom.
- Z 2 represents a carbon atom or C ( ⁇ O) —O— (CH 2 ) 2 —O—C ( ⁇ O) — (CH 2 ) 2 —C.
- Y 1 to Y 9 each independently represents an alkyl group having 1 to 4 carbon atoms.
- N represents an integer of 0 to 3.
- Z 1 represents a hydrogen atom, a methyl group, or CH 2 —C ( ⁇ O) —X, wherein X represents one or more hydroxyl groups, and the main chain may contain one oxygen atom and one nitrogen atom.
- Z 2 represents a carbon atom or C ( ⁇ O) —O— (CH 2 ) 2 —O—C ( ⁇ O) — (CH 2 ) 2 —C. .)
- the drug sustained-release medical contact lens of the present invention can hold the drug (Q) in the contact lens and can gradually release the drug (Q) when the contact lens is worn, It is effective for improving the intraocular transfer of the drug (Q).
- the drug sustained-release medical contact lens of the present invention has an excellent oxygen permeability because it has a specific proportion of structural units containing a silicone moiety.
- the vertical axis represents the sustained drug release rate (%), and the horizontal axis represents the immersion time (h) in ISO physiological saline (phosphate buffer solution defined in ISO18369-3).
- the result of Example 5 is indicated by ⁇ , and the result of Example 6 is indicated by ⁇ .
- the vertical axis represents the sustained drug release rate (%), and the horizontal axis represents the immersion time (h) in ISO physiological saline.
- the result of Example 7 is indicated by ⁇ , the result of Example 8 by ⁇ , the result of Example 9 by ⁇ , and the result of Example 10 by ⁇ .
- the drug sustained-release medical contact lens of the present invention contains the following polymer (P) and drug (Q).
- the polymer (P) used in the present invention contains a structural unit represented by the following formula (1), and more specifically, the structural unit is represented by the formula (A) or the formula (B). It has a structural unit.
- the monomer of the structural unit represented by the formula (A) is represented by the following formula (C).
- the monomer of the structural unit represented by Formula (B) is represented by the following Formula (D1) or Formula (D2).
- Y 1 to Y 9 each independently represent an alkyl group having 1 to 4 carbon atoms.
- the alkyl group having 1 to 4 carbon atoms include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, and a t-butyl group.
- a methyl group is preferable from the viewpoint of improving oxygen permeability.
- R represents a hydrogen atom or a methyl group, and a methyl group is particularly preferable.
- n represents an integer of 0 to 3, and n is preferably 3 from the viewpoint of improving oxygen permeability.
- a, b and c each independently represent an integer of 0 or 1;
- X represents a monovalent organic group having 2 to 6 carbon atoms, which may contain one or more hydroxyl groups and one oxygen atom or nitrogen atom in the main chain.
- Examples of X that is a monovalent organic group include groups represented by formulas (a) to (f).
- a compound represented by the formula (F2) (compound name: 2- [N- (2-hydroxyethyl) carbamoylmethyl] -3- [tris (trimethylsiloxy) silyl] propyl acrylate) in which X is the formula (c) Particularly preferred.
- the formula (E) the formula (F1) and the formula (F2), Y 1 to Y 9 are methyl groups.
- the structural unit represented by the formula (1) in the polymer (P) is a structural unit based on 3- [tris (trimethylsiloxy) silyl] propyl methacryloyloxyethyl succinate, [tris (trimethylsiloxy).
- the structural unit (formula (1)) containing a silicone moiety used in the drug sustained-release medical contact lens of the present invention is specifically represented by formula (A) or formula (B), and formula (A) is represented by formula
- the monomer represented by (C) is obtained by polymerizing, and the monomer represented by the formula (C) can be synthesized according to the method described in WO2010 / 082659.
- the formula (B) is obtained by polymerizing the monomer represented by the formula (D1) or the formula (D2), and the monomer represented by the formula (D1) or the formula (D2) is WO2010 / 104000. It can be synthesized according to the method described in the publication.
- the structural unit (formula (1)) containing a silicone moiety used in the drug sustained-release medical contact lens of the present invention can be used for medical lenses such as hard contact lenses, soft contact lenses, intraocular lenses, Especially, it is preferable to use for a hard contact lens or a soft contact lens, and it is especially preferable to use for a soft contact lens.
- the polymer (P) contained in the drug sustained-release medical contact lens of the present invention may be composed only of a structural unit (formula (1)) containing a silicone moiety, but usually other than formula (1) Containing the components.
- a component other than formula (1) is used in a drug sustained-release medical contact lens
- other monomers hereinafter may be referred to as “other monomers”
- the ratio of the monomer represented by the formula (C), the formula (D1) or the formula (D2) and the other monomer is in the range of 1: 9 to 8: 2 by mass ratio.
- the polymer (P) contained in the sustained-release medical contact lens of the present invention is 10% by mass to 80% by mass, preferably 20% by mass to 70% by mass, more preferably 30% by mass to 70% by mass of the monomer of the structural unit represented by the formula (1) and 90% by mass to 20% by mass, preferably 80% by mass to 30% by mass, and more preferably 70% by mass to 30% by mass. It is obtained by mixing and polymerizing the monomer.
- the content of the structural unit represented by the formula (1) in the copolymer used in the present invention is preferably 1 to 50 mol%, more preferably 5 to 40 mol%.
- monomers generally used as monomers used for contact lenses can be appropriately selected and used.
- monomers used for the drug sustained-release medical contact lens of the present invention are, for example, (meth) acrylic acid, itaconic acid, crotonic acid, cinnamic acid for the purpose of enhancing the surface hydrophilicity of the contact lens.
- Water-soluble monomers such as (meth) acrylate, glycerol (meth) acrylate, N-vinylformamide, N-vinylacetamide, N-methyl-N-vinylacetamide, N-vinylpyrrolidone are preferred.
- 2-hydroxyethyl (meth) acrylate is particularly preferable from the viewpoint of enhancing the surface hydrophilicity of the contact lens.
- monomers used for the drug sustained-release medical contact lens of the present invention are, for example, polyalkylene glycol bis (meth) acrylate, trimethylolpropane tris (meta) for the purpose of controlling the flexibility of the contact lens.
- alkyl such as methyl (meth) acrylate and ethyl (meth) acrylate
- (Meth) acrylates siloxane macromonomers having carbon-carbon unsaturated bonds at both ends, polyfunctional (meth) acrylates such as ethylene glycol dimethacrylate; trifluoroethyl (meth) acrylates; styrene, ⁇ -methylstyrene, Aromatic vinyl monomers such as vinyl pyridine; vinyl esters such as vinyl acetate.
- a monomer for the purpose of enhancing the surface hydrophilicity of these sustained-release medical contact lenses of the present invention a monomer for the purpose of controlling flexibility, and an object of enhancing the shape maintainability
- the following monomers can be blended in the drug sustained-release medical contact lens of the present invention.
- the monomer (C), monomer (D1) or monomer (D2) of the structural unit represented by the formula (1) can be mixed, and a thermal polymerization initiator typified by a peroxide or an azo compound or a photopolymerization initiator can be added as appropriate.
- a thermal polymerization initiator typified by a peroxide or an azo compound or a photopolymerization initiator can be added as appropriate.
- azo compound examples include 2,2-azobis (2-aminopropyl) dihydrochloride, 2,2-azobis (2- (5-methyl-2-imidazolin-2-yl) propane) dihydrochloride, 4 , 4-Azobis (4-cyanovaleric acid), 2,2-azobisisobutyramide dihydrate, 2,2-azobis (2,4-dimethylvaleronitrile), 2,2-azobisisobutyronitrile (Azobisisobutyronitrile, AIBN), dimethyl-2,2′-azobisisobutyrate, 1-((1-cyano-1-methylethyl) azo) formamide, 2,2′-azobis (2- Methyl-N-phenylpropionamidin) dihydrochloride, 2,2′-azobis (2-methyl-N- (2-hydroxyethyl) -propionamide), 2,2′-azobis (2-methylpro) Pionamido) dihydrate, 4,4′-azobis (4-cyanopentanoic acid),
- a photoinitiator As a photoinitiator, a carbonyl compound, a sulfur compound, a halogen compound, or a metal salt can be mentioned, for example. These polymerization initiators may be used alone or in combination of two or more. It is preferably used in a proportion of 0.2 to 2 parts by mass with respect to 100 parts by mass of the polymerization component.
- the content of the polymer (P) used in the drug sustained-release medical contact lens of the present invention is 90 to 99.99999 mass%. From the viewpoint of improving drug sustained-release and oxygen permeability, 93 to 99 .99998% by mass is preferable, and 95 to 99.99997% by mass is more preferable.
- the drug (Q) used in the drug sustained-release medical contact lens of the present invention is a component having pharmacological activity used for ophthalmic drugs, and the solubility of these components having pharmacological activity in water is 0.00001-3. .3%.
- the solubility of the component having pharmacological activity in water is 0.00. It is preferably 0.0001 to 2.9%, more preferably 0.00001 to 2.8%.
- the solubility of the drug (Q) used in the drug sustained-release medical contact lens of the present invention in water is necessary for dissolving the drug (Q) by adding water at 25 ° C. to 0.01 g of the drug (Q). It represents the mass (g) of water.
- the drug (Q) used for the drug sustained-release medical contact lens of the present invention is preferably an antiallergic drug, glaucoma drug, anti-inflammatory drug, corticosteroid drug, antibacterial drug, anti-cataract drug, corneal drug,
- drugs (Q) selected from the group consisting of antiviral drugs, mydriatic drugs, regulatory paralytic drugs, and vitamin drugs. More specific examples of the drug (Q) include the following. Further, the solubility of each drug (Q) in water is shown in parentheses following each drug (Q) name.
- Antiallergic drugs include amlexanox (0.01%), tranilast (0.01%), levocabastine hydrochloride (0.01%), acitazanolast hydrate (0.55%), ketotifen fumarate ( 0.55%) and olopatadine hydrochloride (2.15%).
- isopropyl unoprostone (0.01%), tafluprost (0.01%), travoprost (0.01%), latanoprost (0.01%), brinzolamide (0.055%), Bimatoprost (0.55%), bunazosin hydrochloride (0.55%) can be mentioned.
- Anti-inflammatory drugs include indomethacin (0.00009%), nepafenac (0.01%), pranoprofen (0.01%), diclofenac sodium (0.24%), azulene sulfonate sodium hydrate (2 .15%).
- Corticosteroids include dexamethasone (0.01%), hydrocortisone acetate (0.0014%), fluorometholone (0.003%), prednisolone acetate (0.0017%), methylprednisolone (0.01 %), Sodium dexamethasone sulfobenzoate (0.55%).
- Antibacterial drugs include tosufloxacin tosylate hydrate (0.01%), norfloxacin (0.01%), cefmenoxime (0.055%), lomefloxacin hydrochloride (0.55%), ofloxacin (2.8%) , Gatifloxacin (0.55%), chloramphenicol (0.25%), levofloxacin hydrate (2.15%).
- An example of an anti-cataract drug is pirenoxine (0.01%).
- corneal therapeutic agents include rebamipide (0.01%) and sodium hyaluronate (2.15%).
- An example of an antiviral drug is acyclovir (0.16%).
- tropicamide 0.55%
- cyanocobalamin (2.15%) can be mentioned.
- a glaucoma therapeutic drug is more preferable from the viewpoint of drug sustained-release, and latanoprost is particularly preferable.
- the compounding amount of the drug (Q) used for the drug sustained-release medical contact lens of the present invention is 0.00001 to 10% by mass. From the viewpoint of improving drug sustained-release and oxygen permeability, 0.00002 to 7 mass% is preferable, and 0.00003 to 5 mass% is more preferable.
- the drug sustained-release medical contact lens of the present invention can be produced by combining processes known by those skilled in the art. Although there is no restriction
- a monomer of formula (C), formula (D1) or formula (D2), a desired other monomer, and a drug (Q) are mixed, a polymerization initiator is added thereto, and stirring is performed.
- a monomer mixture liquid is obtained by dissolving, and the obtained monomer mixture liquid is put into a desired mold, a copolymer is obtained by a copolymerization reaction, and the copolymer is cooled and After peeling from the mold and cutting and polishing as necessary, the molded copolymer can be hydrated and swollen to obtain the drug sustained-release medical contact lens of the present invention.
- the solution for dissolving the drug (Q) can be water, physiological saline, organic solvent or the like, and if necessary, surfactant, inorganic salt, salt of organic acid, acid, base, oxidation Inhibitors, stabilizers, and preservatives can also be added.
- surfactant include benzalkonium chloride and polysorbate
- examples of the inorganic salt include sodium chloride, disodium hydrogen phosphate, and sodium dihydrogen phosphate, but are not particularly limited.
- the monomer of the formula (C), the formula (D1) or the formula (D2) is mixed with the desired other monomer, and a polymerization initiator is added thereto, followed by stirring and dissolution.
- a monomer mixture put the obtained monomer mixture in a desired mold, obtain a copolymer by a copolymerization reaction, cool and peel the copolymer from the mold Then, it is cut and polished as necessary to produce a contact lens.
- a solution in which the drug (Q) is dissolved by preparing a solution in which the drug (Q) is dissolved, applying or coating this solution on the surface of the contact lens, and holding the drug (Q) on the contact lens, the sustained release of the drug of the present invention is achieved.
- Sexual contact lenses can also be obtained.
- the solution for dissolving the drug (Q) can be water, physiological saline, organic solvent or the like, and if necessary, surfactant, inorganic salt, salt of organic acid, acid, base, oxidation Inhibitors, stabilizers, and preservatives can also be added.
- surfactant include benzalkonium chloride and polysorbate
- examples of the inorganic salt include sodium chloride, disodium hydrogen phosphate, and sodium dihydrogen phosphate, but are not particularly limited.
- the monomer of formula (C), formula (D1) or formula (D2), the desired other monomer, and drug (Q) are mixed to prepare a mixture, and the mixture The liquid is poured into the mold and the mold is clamped. Next, the mixture is polymerized by irradiating the mold with ultraviolet rays, then demolded, and further washed with a large excess amount of saline for 3 days or more, and the unreacted monomer, drug ( Q) is removed.
- the contact lens is immersed in an aqueous solution in which the drug (Q) is dissolved or suspended for 1 hour to several days, so that a large amount of drug is taken up.
- a contact lens capable of slow release of vaginal drug can be obtained (see Patent Document 2).
- Preferred combinations of the polymer (P) and the drug (Q) of the contact lens of the present invention are as follows, but are not particularly limited.
- (P) a polymer having structural units based on [tris (trimethylsiloxy) silyl] propyl 3- (2-hydroxyethoxy) carbonyl-3-butenate and (Q) latanoprost
- the present invention relates to a drug in which the content of the polymer (P) having the structural unit represented by the formula (1) is 90 to 99.99999 mass% and the solubility in water is 0.00001 to 3.3%.
- a drug sustained release method using a drug sustained-release medical contact lens having a content of (Q) of 0.00001 to 10% by mass for mammals including humans is also targeted.
- the drug sustained-release method of the present invention is not particularly limited.
- the drug sustained-release medical contact lens of the present invention can be attached to the eyeball for 60 minutes or more per day.
- the present invention relates to a drug in which the content of the polymer (P) having the structural unit represented by the formula (1) is 90 to 99.99999 mass% and the solubility in water is 0.00001 to 3.3%.
- a method of using the polymer (P) and the drug (Q) is also targeted.
- Z 1 represents a hydrogen atom, a methyl group, or CH 2 —C ( ⁇ O) —X, wherein X represents one or more hydroxyl groups, and the main chain may contain one oxygen atom and one nitrogen atom.
- Z 2 represents a carbon atom or C ( ⁇ O) —O— (CH 2 ) 2 —O—C ( ⁇ O) — (CH 2 ) 2 —C. .)
- Example 1 40 parts by mass of a compound represented by 3- [tris (trimethylsiloxy) silyl] propyl methacryloyloxyethyl succinate ⁇ compound of formula (E) ⁇ , 60 parts by mass of 2-hydroxyethyl methacrylate (HEMA, other monomers) , Latanoprost ⁇ Drug (Q) ⁇ 0.005 part by mass was mixed to prepare a sustained-release medical contact lens solution of the present invention. The transparency of this solution was confirmed visually. Transparency was uniformly dissolved without impurities.
- HEMA 2-hydroxyethyl methacrylate
- Example 2 A drug sustained-release medical contact lens solution of the present invention was prepared according to the same procedure as in Example 1 except that the amount of monomer used was changed. The evaluation results are shown in Table 1 together with the composition.
- Example 1 and Example 2 a clear solution could be prepared at the time of mixing.
- the transparent solution means “dissolved uniformly without impurities”.
- the monomer of formula (E) was changed to TRIS ⁇ a monomer different from the monomer of formula (E) and having a silicone moiety ⁇ , it was insoluble during mixing And a clear solution could not be obtained. Since the monomer of the formula (E) has a site derived from succinic acid, it was considered that the compatibility with the drug (Q) was improved and a transparent solution could be prepared. .
- Example 3 a circular film-like sample is prepared using Example 1 and Example 2, and transparency and oxygen permeability in the film-like sample are required when producing a drug sustained-release medical contact lens. (Example 3 and Example 4) were evaluated.
- Reference Example 1 and Reference Example 2 in which the drug (Q) was removed from Example 3 and Example 4 were prepared separately as comparative objects when performing oxygen permeability evaluation. Table 2 shows the evaluation results of Example 3, Example 4, Reference Example 1 and Reference Example 2 together with the composition.
- Example 3 To the solution prepared in Example 1, 0.5 part by mass of ethylene glycol dimethacrylate (EGDMA) and 0.5 part by mass of azobisisobutyronitrile (AIBN) were added and mixed and dissolved. This solution was poured into a cell sandwiched between a glass plate and a polypropylene plate using a polyethylene terephthalate sheet having a thickness of 0.1 mm as a spacer, and nitrogen substitution in the oven was performed. Subsequently, it superposed
- EGDMA ethylene glycol dimethacrylate
- AIBN azobisisobutyronitrile
- the produced water-containing film was prepared in a shape necessary for each measurement, and the film transparency was visually confirmed to confirm that it was transparent.
- the oxygen permeability (K-316, manufactured by Tsukubarika Seiki Co., Ltd.) of the circular film sample was measured in water at 25 ° C. Table 2 shows the oxygen permeability measurement results.
- Example 4 Prepared according to the same procedures as in Example 3, except that Example 2 was used instead of Example 1. The film transparency of Example 4 was confirmed to be transparent. Table 2 shows the oxygen permeability measurement results of Example 4.
- Reference Example 1 It was prepared according to the same procedure as in Example 3 except that the types and amounts of components shown in Table 2 were used. Table 2 shows the film transparency evaluation results and the oxygen permeability measurement results.
- Example 3 and Example 4 Reference Example 1 and Reference Example 2 were all transparent films, and were found to be suitable for producing contact lenses.
- the oxygen permeability measurement results of Example 3 and Example 4 Reference Example 1 and Reference Example 2 were no difference was observed in the oxygen permeability depending on the presence or absence of the drug (Q), and both showed good oxygen permeability. Indicated. From the above, it was confirmed that the drug sustained-release medical contact lenses of Example 3 and Example 4 are contact lenses excellent in transparency and oxygen permeability.
- Example 5 Example 5
- Example 6 Further, with respect to the contact lenses of Reference Examples 1 and 2, the following contact lens drug sustained release tests were conducted and evaluated as Examples 5 and 6, respectively.
- the contact lens drug sustained release test was performed according to the following procedure. (1) 8.3 g of sodium chloride, 5.993 g of sodium hydrogenphosphate dodecahydrate, 0.528 g of sodium dihydrogenphosphate dihydrate are weighed into a volumetric flask, dissolved in water to make 1000 mL, and ISO physiological saline Liquid. (2) Weigh 80 g of water, add 0.75 g of sodium chloride, 0.263 g of disodium hydrogen phosphate, 0.141 g of sodium dihydrogen phosphate, 0.01 g of benzalkonium chloride, 0.1 g of polysorbate 80, latanoprost 0 0.005 g was weighed sequentially and added.
- Example 5 the drug sustained release test of the contact lens was performed according to the above procedure, and the evaluation result was set to Example 6. These Example 5 and Example 6 are shown in FIG.
- Drug sustained release rate (%) (peak area of latanoprost at each sampling time) / (peak area of latanoprost after 32 hours of sampling) ⁇ 100
- Example 5 and Example 6 had a result of drug sustained release linearly in proportion to the immersion time in the ISO physiological saline (FIG. 1). From this, it was confirmed that both Example 5 and Example 6 have sustained drug release properties up to 32 hours after latanoprost. From this, it was found that the contact lens of the present invention is excellent in oxygen permeability and film transparency, and further excellent as a drug sustained-release medical contact lens.
- Example 7 to 10 A contact lens (film-like sample) using the drug sustained-release medical contact lens solution of the present invention according to the same procedure as in Example 1 and Example 3, except that the types and amounts of components shown in Table 3 were used.
- Example 7 to 10 The film transparency of the prepared Examples 7 to 10 was confirmed, and the results are shown in Table 3.
- Example 3 the oxygen permeability of the circular film sample was measured in water at 25 ° C., and the measurement results are shown in Table 3.
- Example 7 to 10 As a result of confirmation of film transparency and measurement of oxygen permeability, the film transparency of Examples 7 to 10 was transparent and suitable for manufacturing contact lenses. In addition, Example 10 was found to have the most excellent oxygen permeability.
- Example 7 to Example 10 are shown in FIG. As is clear from FIG. 2, it was confirmed that the polymers of Examples 7 to 10 have sustained drug release properties until 8 hours later. From this, it was confirmed that the polymers of Examples 7 to 10 also have sustained drug release properties with respect to latanoprost.
- the contact lens of the present invention was excellent in sustained drug release and useful as a drug sustained release medical contact lens.
- a non-water-soluble and pharmacologically active component can be held in a contact lens to provide a drug sustained-release medical contact lens that imparts sustained drug release and is excellent in oxygen permeability.
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Abstract
Description
本出願は、参照によりここに援用されるところの日本出願2015-214842号優先権を請求する。
以上の通り、非水溶性の有効成分を長時間にわたって保持・徐放することができ、かつ、酸素透過性に優れるコンタクトレンズ組成物の開発が切望されていた。
すなわち、本発明は次の〔1〕~〔8〕である。
〔2〕式(1)で表される構成単位が式(A)もしくは式(B)で示される前記の〔1〕に記載の薬物徐放性医療用コンタクトレンズ。
〔3〕Xは、以下の(a)~(f)のいずれか1である前記の〔1〕又は〔2〕に記載の薬物徐放性医療用コンタクトレンズ。
〔5〕重合体(P)が、メタクリロイルオキシエチルコハク酸3-[トリス(トリメチルシロキシ)シリル]プロピルに基づく構成単位を有する重合体であって、薬物(Q)が、ラタノプロストである、前記の〔1〕に記載の薬物徐放性医療用コンタクトレンズ。
〔6〕重合体(P)が、[トリス(トリメチルシロキシ)シリル]プロピル=3-(2-ヒドロキシエトキシ)カルボニル-3-ブテナートに基づく構成単位を有する重合体であって、薬物(Q)が、ラタノプロストである、前記の〔1〕に記載の薬物徐放性医療用コンタクトレンズ。
〔7〕式(1)で表される構成単位を有する重合体(P)の含有量が90~99.99999質量%であり、水に対する溶解度が0.00001~3.3%である薬物(Q)の含有量が0.00001~10質量%である薬物徐放性医療用コンタクトレンズをヒトを含む哺乳類に使用する、薬物徐放方法。
〔8〕式(1)で表される構成単位を有する重合体(P)の含有量が90~99.99999質量%であり、水に対する溶解度が0.00001~3.3%である薬物(Q)の含有量が0.00001~10質量%である薬物徐放性医療用コンタクトレンズを製造するために、重合体(P)と薬物(Q)の使用方法。
本発明の薬物徐放性医療用コンタクトレンズは、次に記す重合体(P)と薬物(Q)とを含有する。
本発明に用いる重合体(P)は、下記の式(1)で表される構成単位を含有し、該構成単位は、より具体的には式(A)もしくは式(B)で表される構成単位を有する。
Rは水素原子もしくはメチル基を表し、中でもメチル基が好ましい。
nは0~3の整数を表し、酸素透過性を向上させる観点から、nは3が好ましい。
a、b、cはそれぞれが互いに独立に0または1の整数を表す。Xは水酸基を1個以上、主鎖に酸素原子、窒素原子を1個含んでも良い、炭素数2~6の1価の有機基を表す。1価の有機基であるXとしては、例えば式(a)~式(f)で示される基が挙げられる。
重合体として言い換えると、重合体(P)における式(1)で表される構成単位は、メタクリロイルオキシエチルコハク酸3-[トリス(トリメチルシロキシ)シリル]プロピルに基づく構成単位、[トリス(トリメチルシロキシ)シリル]プロピル=3-(2-ヒドロキシエトキシ)カルボニル-3-ブテナートに基づく構成単位、もしくは、2-[N-(2-ヒドロキシエチル)カルバモイルメチル]-3-[トリス(トリメチルシロキシ)シリル]プロピルアクリレートに基づく構成単位が特に好ましい。
より詳しくは、本発明の薬物徐放性医療用コンタクトレンズの含有する重合体(P)は、10質量%~80質量%、好ましくは20質量%~70質量%、より好ましくは30質量%~70質量%の式(1)で表される構成単位の単量体と、90質量%~20質量%、好ましくは80質量%~30質量%、より好ましくは70質量%~30質量%のその他の単量体とを混合して重合することにより得られる。
本発明に用いる共重合体中の式(1)で表される構成単位の含有量は、好ましくは1~50モル%であり、より好ましくは5~40モル%である。
本発明の薬物徐放性医療用コンタクトレンズに用いるその他の単量体としては、コンタクトレンズに用いる単量体として一般に用いられる単量体を適宜選択して用いることが出来る。
本発明の薬物徐放性医療用コンタクトレンズに用いる薬物(Q)としては、眼科用薬に用いられる薬理活性を有する成分であり、これら薬理活性を有する成分の水に対する溶解度が0.00001~3.3%である。本発明の薬物徐放性医療用コンタクトレンズに用いるシリコーン部位を配合した構成単位(1)と、薬理活性を有する成分との相溶性の観点から、薬理活性を有する成分の水に対する溶解度は0.00001~2.9%が好ましく、より好ましくは、0.00001~2.8%である。
(水に対する溶解度)(%)=(薬物(Q)0.01(g))/(溶解させるのに必要となった水の質量(g)、25℃)×100
本発明の薬物徐放性医療用コンタクトレンズに用いる薬物(Q)の配合量としては、0.00001~10質量%であり、薬物徐放性と、酸素透過性向上の観点から0.00002~7質量%が好ましく、0.00003~5質量%がより好ましい。
本発明の薬物徐放性医療用コンタクトレンズは当業者により知られている工程を組み合わせることで製造することが出来る。製造方法について制限は無いが、例えば、以下の工程で製造することが出来る。
(P)メタクリロイルオキシエチルコハク酸3-[トリス(トリメチルシロキシ)シリル]プロピルに基づく構成単位を有する重合体及び(Q)ラタノプロスト、
(P)[トリス(トリメチルシロキシ)シリル]プロピル=3-(2-ヒドロキシエトキシ)カルボニル-3-ブテナートに基づく構成単位を有する重合体及び(Q)ラタノプロスト、
(P)2-[N-(2-ヒドロキシエチル)カルバモイルメチル]-3-[トリス(トリメチルシロキシ)シリル]プロピルアクリレートに基づく構成単位を有する重合体及び(Q)ラタノプロスト。
なお、本発明の薬物徐放方法は、特に限定されないが、例えば、本発明の薬物徐放性医療用コンタクトレンズを、1日あたり60分以上、眼球に装着することが可能である。
メタクリロイルオキシエチルコハク酸3-[トリス(トリメチルシロキシ)シリル]プロピル{式(E)の化合物}で表される化合物40質量部、2-ヒドロキシエチルメタクリレート(HEMA、その他の単量体)60質量部、ラタノプロスト{薬物(Q)}0.005質量部を混合し、本発明の薬物徐放性医療用コンタクトレンズ溶液を調製した。この溶液の透明性を目視で確認した。透明性は不純物など無く均一に溶解していた。
用いる単量体の量を変えた以外は、実施例1と同様の手順に従って本発明の薬物徐放性医療用コンタクトレンズ溶液を調製した。組成とともに評価結果を表1に示す。
式(E)の単量体に代えて、式(C)、式(D1)および式(D2)のいずれでもない3-トリス(トリメチルシリル)プロピルメタクリレート(TRISと略記)を用いた以外は、それぞれ実施例1、実施例2と同様の手順に従って、実施例1、2(薬物徐放性医療用コンタクトレンズ溶液)とは異なるコンタクトレンズ溶液を調製した。組成とともに評価結果を表1に示す。
次に、実施例1および実施例2を用いて円形フィルム状サンプルを調製し、薬物徐放性医療用コンタクトレンズを製する際に必要とされる、フィルム状サンプルでの透明性と酸素透過性について評価を行った(実施例3および実施例4)。なお、酸素透過性評価を行う際の比較対象として、実施例3および実施例4から薬物(Q)を除いた参考例1および参考例2を別に調製した。実施例3、実施例4、参考例1および参考例2について、組成とともに評価結果を表2に示す。
実施例1にて調製した溶液にエチレングリコールジメタクリレート(EGDMA)0.5質量部およびアゾビスイソブチロニトリル(AIBN)0.5質量部を加え、混合・溶解させた。この溶液を、厚さ0.1mmのポリエチレンテレフタレートシートをスペーサーとしてガラス板とポリプロピレン板の間に挟みこんだセル内に流し込み、オーブン内の窒素置換を行った。次いで、100℃で2時間加熱することにより重合した。重合後、ポリエチレンテレフタレートシートを型から取り出し、エタノール:イオン交換水=3:1溶液に12時間浸漬させ、さらに、イオン交換水に12時間浸漬して含水フィルムを作製した。作製した含水フィルムを各々の測定に必要な形状に調製し、フィルム透明性を目視にて確認し、透明であることを確認した。さらに25℃の水中にて円形フィルム状サンプルの酸素透過性(ツクバリカセイキ(株)製、K-316)を測定した。酸素透過性測定結果を表2に示す。
実施例1の代わりに実施例2を用いた以外は、実施例3と同様の手順に従って調製した。実施例4のフィルム透明性は透明であることを確認した。実施例4の酸素透過性測定結果を表2に示す。
表2に示す種類および分量の成分を使用した以外は、実施例3と同様の手順に従って調製した。フィルム透明性評価結果及び酸素透過性測定結果を表2に示す。
実施例3および実施例4、参考例1および参考例2の酸素透過性測定結果の比較において、薬物(Q)の有無によって酸素透過性に差異を認められず、いずれも良好な酸素透過性を示した。以上より、実施例3および実施例4の薬物徐放性医療用コンタクトレンズは、透明性と酸素透過性に優れるコンタクトレンズであることを確認した。
TRIS:3-トリス(トリメチルシリル)プロピルメタクリレート
HEMA:2-ヒドロキシエチルメタクリレート
EGDMA:エチレングリコールジメタクリレート
AIBN:アゾビスイソブチロニトリル。
更に、参考例1及び参考例2のコンタクトレンズについて、以下のコンタクトレンズの薬物徐放性試験を実施し、それぞれ実施例5及び実施例6として評価した。
コンタクトレンズの薬物徐放性試験は以下に示す手順に従って試験を行った。
(1)メスフラスコへ塩化ナトリウム8.3g、リン酸水素ナトリウム十二水和物5.993g、リン酸二水素ナトリウム二水和物0.528gを量り、水で溶かして1000mLとして、ISO生理食塩液とした。
(2)水80gを量り、これに塩化ナトリウム0.75g、リン酸水素二ナトリウム0.263g、リン酸二水素ナトリウム0.141g、塩化ベンザルコニウム0.01g、ポリソルベート80 0.1g、ラタノプロスト0.005gを順次量り、加えた。この液へ更に、水を加えて合計100gとしてラタノプロスト溶液とした。
(3)ガラスシャーレに(2)の液10mL及び参考例1のフィルムを入れ、終夜浸漬した。
(4)この後、別のガラスシャーレへISO生理食塩液10mLを入れた。
(5)(3)にて浸漬後の参考例1のフィルムを取り出し、ISO生理食塩液を用いて十分すすいだ(当該フィルムは、薬物(Q)を保持させた本発明の薬物徐放性医療用コンタクトレンズに該当する)。
(6)(5)で十分すすいだ参考例1のフィルムを(4)のガラスシャーレへ入れた。
(7)(6)の直後、0.5mLずつサンプリングを行った。
(8)更に(7)の後、サンプリングを1時間後、2時間後、4時間後、8時間後、24時間後、32時間後に実施した。
(9)サンプリングしたものについて、以下の<分析条件>を用いて定量分析を行った。
(10)分析後、参考例1の薬物徐放性を、以下の<薬物徐放率の算式>により評価し、評価結果を実施例5とした。
これら実施例5及び実施例6を図1に示す。
カラム:内径4.6mm、長さ150mmのステンレス管に5μmの液体クロマトグラフィー用オクタデシルシリル化シリカゲルを充てんする
カラムオーブン:25℃付近の一定温度
注入量:20μL
流量:ラタノプロストの保持時間が約8分になるように調整する
検出器:紫外可視分光検出器(210nm)
移動相:リン酸二水素カリウム3.40gを量り、水に溶かして正確に500mLとして、リン酸二水素カリウム溶液とする。この液300mLを量り、アセトニトリル700mLを加え、10%リン酸を用いてpH3.0に調整して移動相とした。
薬物徐放率(%) = (各サンプリング時間でのラタノプロストのピーク面積)/(32時間後におけるサンプリングのラタノプロストのピーク面積)× 100
これより、本発明のコンタクトレンズは酸素透過性、フィルム透明性に優れ、更に、薬物徐放性医療用コンタクトレンズとして優れていることが分かった。
表3に示す種類および分量の成分を使用した以外は、実施例1および実施例3と同様の手順に従って、本発明の薬物徐放性医療用コンタクトレンズ溶液を用いたコンタクトレンズ(フィルム状サンプル)を調製した。調製した実施例7~実施例10のフィルム透明性を確認し、その結果は表3に示すとおりであった。また、実施例3と同様に、25℃の水中にて円形フィルム状サンプルの酸素透過性を測定し、その測定結果を表3に示す。
MPC:2-メタクリロイルオキシエチルホスホリルコリン
HEA:2-ヒドロキシエチルアクリレート
NVP:N-ビニルピロリドン
EGDMA:エチレングリコールジメタクリレート
AIBN:アゾビスイソブチロニトリル。
なお、実施例7~実施例10の薬物徐放率の算出は、以下の<薬物徐放率の算式2>を用いた。
<薬物徐放率の算式2>
薬物徐放率(%)=(各サンプリング時間でのラタノプロストのピーク面積)/(8時間後におけるサンプリングのラタノプロストのピーク面積)×100
Claims (6)
- 式(1)で表される構成単位を有する重合体(P)と、水に対する溶解度が0.00001~3.3%である薬物(Q)とを含有する薬物徐放性医療用コンタクトレンズであって、重合体(P)の含有量が90~99.99999質量%であり、薬物(Q)の含有量が0.00001~10質量%である薬物徐放性医療用コンタクトレンズ。
- 薬物(Q)が、緑内障治療薬、抗アレルギー薬、抗炎症薬、副腎皮質ステロイド薬、抗菌薬、抗白内障薬、角膜治療薬、抗ウィルス薬、散瞳薬、調節麻痺薬、およびビタミン剤からなる群から選ばれる1種以上の薬物(Q)である、請求項1~3のいずれか1に記載の薬物徐放性医療用コンタクトレンズ。
- 重合体(P)が、メタクリロイルオキシエチルコハク酸3-[トリス(トリメチルシロキシ)シリル]プロピルに基づく構成単位を有する重合体であって、薬物(Q)が、ラタノプロストである、請求項1に記載の薬物徐放性医療用コンタクトレンズ。
- 重合体(P)が、[トリス(トリメチルシロキシ)シリル]プロピル=3-(2-ヒドロキシエトキシ)カルボニル-3-ブテナートに基づく構成単位を有する重合体であって、薬物(Q)が、ラタノプロストである、請求項1に記載の薬物徐放性医療用コンタクトレンズ。
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WO2018135421A1 (ja) * | 2017-01-17 | 2018-07-26 | 日油株式会社 | コンタクトレンズ用モノマー組成物、コンタクトレンズ用重合体及びその製造方法、並びにコンタクトレンズ及びその製造方法 |
JP2019053125A (ja) * | 2017-09-13 | 2019-04-04 | 日油株式会社 | コンタクトレンズ用モノマー組成物、コンタクトレンズ用重合体及びその製造方法、並びにコンタクトレンズ及びその製造方法 |
WO2020054711A1 (ja) * | 2018-09-14 | 2020-03-19 | 日油株式会社 | コンタクトレンズ用モノマー組成物、その重合体、ならびにコンタクトレンズおよびその製造方法 |
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WO2018135421A1 (ja) * | 2017-01-17 | 2018-07-26 | 日油株式会社 | コンタクトレンズ用モノマー組成物、コンタクトレンズ用重合体及びその製造方法、並びにコンタクトレンズ及びその製造方法 |
JP2019053125A (ja) * | 2017-09-13 | 2019-04-04 | 日油株式会社 | コンタクトレンズ用モノマー組成物、コンタクトレンズ用重合体及びその製造方法、並びにコンタクトレンズ及びその製造方法 |
WO2020054711A1 (ja) * | 2018-09-14 | 2020-03-19 | 日油株式会社 | コンタクトレンズ用モノマー組成物、その重合体、ならびにコンタクトレンズおよびその製造方法 |
CN112673303A (zh) * | 2018-09-14 | 2021-04-16 | 日油株式会社 | 隐形眼镜用单体组合物、其聚合物、以及隐形眼镜及其制造方法 |
CN112673303B (zh) * | 2018-09-14 | 2023-03-14 | 日油株式会社 | 隐形眼镜用单体组合物、其聚合物、以及隐形眼镜及其制造方法 |
WO2020066598A1 (ja) * | 2018-09-25 | 2020-04-02 | 日油株式会社 | コンタクトレンズ用モノマー組成物およびコンタクトレンズ用重合体、ならびにコンタクトレンズおよびその製造方法 |
CN112673304A (zh) * | 2018-09-25 | 2021-04-16 | 日油株式会社 | 隐形眼镜用单体组合物及隐形眼镜用聚合物、以及隐形眼镜及其制造方法 |
US11867875B2 (en) | 2018-09-25 | 2024-01-09 | Nof Corporation | Monomer composition for contact lenses, polymer for contact lenses, contact lens, and method of producing the contact lens |
Also Published As
Publication number | Publication date |
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TW201718768A (zh) | 2017-06-01 |
JPWO2017073739A1 (ja) | 2018-12-13 |
JP6750632B2 (ja) | 2020-09-02 |
US20180314077A1 (en) | 2018-11-01 |
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