WO2024135344A1 - 眼科用製品 - Google Patents
眼科用製品 Download PDFInfo
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- WO2024135344A1 WO2024135344A1 PCT/JP2023/043479 JP2023043479W WO2024135344A1 WO 2024135344 A1 WO2024135344 A1 WO 2024135344A1 JP 2023043479 W JP2023043479 W JP 2023043479W WO 2024135344 A1 WO2024135344 A1 WO 2024135344A1
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- ophthalmic
- ophthalmic composition
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- acid
- composition
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0048—Eye, e.g. artificial tears
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- 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
- A61K31/13—Amines
- A61K31/155—Amidines (), e.g. guanidine (H2N—C(=NH)—NH2), isourea (N=C(OH)—NH2), isothiourea (—N=C(SH)—NH2)
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/02—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/10—Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/16—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing nitrogen, e.g. nitro-, nitroso-, azo-compounds, nitriles, cyanates
- A61K47/18—Amines; Amides; Ureas; Quaternary ammonium compounds; Amino acids; Oligopeptides having up to five amino acids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/08—Solutions
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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
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C13/00—Assembling; Repairing; Cleaning
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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
Definitions
- the present invention relates to an ophthalmic product housed in a container that has been sterilized using electron beam or gamma radiation.
- Ophthalmic compositions are required to remain sterile until they are opened.
- Methods for sterilizing ophthalmic compositions include incorporating a preservative into the ophthalmic composition, but the containers used must also be sterilized, and a method for doing so has been proposed.
- hyaluronic acid or a salt thereof is able to retain moisture on the surface of the eye for a long time due to its high water retention, and also has the effect of repairing damage to the surface of the eye.
- Chlorhexidine is effective as a preservative. The inventors have found that when an ophthalmic composition containing these two components is stored in a container that has been sterilized with electron beams or gamma rays, insoluble matter is generated after freezing and thawing (freezing and then returning to room temperature), and the stability of the appearance is reduced. The objective of the present invention is to solve this problem.
- the present invention provides an ophthalmic product comprising: 1. (A) hyaluronic acid or a salt thereof, An ophthalmic composition comprising (B) chlorhexidine and (C) epsilon aminocaproic acid or a salt thereof, An ophthalmic product housed in a container that has been sterilized by electron beam or gamma radiation. 2. The ophthalmic product according to 1, wherein the content mass ratio represented by (C)/(B) is 100 to 5,000. 3. The ophthalmic product according to 1 or 2, wherein the content of component (A) in the ophthalmic composition is 0.01 to 0.1 w/v %. 4.
- the present invention provides an ophthalmic product that suppresses the generation of insoluble matter after freezing and thawing and has excellent appearance stability, and that contains an ophthalmic composition containing (A) hyaluronic acid or a salt thereof and (B) chlorhexidine, and that is housed in a container that has been sterilized with electron beams or gamma rays.
- the hyaluronic acid or its salt of the present invention is not particularly limited, and any hyaluronic acid that is usually used in mucous membrane application preparations in the ophthalmic field can be used.
- hyaluronic acids include hyaluronic acid, its derivatives, and their pharmacologic and physiologically acceptable salts. Those obtained by extraction from cockscomb, fermentation by microorganisms, etc. can be used, and the origin and manufacturing method are not particularly limited.
- Hyaluronic acid or its salt can be used alone or in appropriate combination of two or more.
- component (A) examples include hyaluronic acid, sodium hyaluronate, potassium hyaluronate, magnesium hyaluronate, calcium hyaluronate, etc. Among them, sodium hyaluronate is preferred.
- component (A) commercially available products can be used, such as purified sodium hyaluronate (manufactured by Seikagaku Corporation, Kewpie Corporation, Kikkoman Biochemifa Corporation, Iwaki Pharmaceutical Co., Ltd., and Blue Meiji Biotechnology Co., Ltd.).
- the average molecular weight of component (A) is preferably 500,000 to 5,000,000, more preferably 500,000 to 4,000,000, even more preferably 500,000 to 2,500,000, particularly preferably 500,000 to 2,000,000, and most preferably 500,000 to 1,490,000.
- the average molecular weight of component (A) is measured by the method for measuring average molecular weight described in the "Purified Sodium Hyaluronate" section of the Japanese Pharmacopoeia, 18th Edition, Pharmaceutical Articles. Note that multiple types of hyaluronic acid and/or salts with different average molecular weights can be used.
- component (A) such as “Sodium Hyaluronate “Seikagaku”” (average molecular weight 500,000 to 1,200,000) and “Cosmetic Sodium Hyaluronate (HC)” (average molecular weight 530,000 to 1,330,000) manufactured by Seikagaku Corporation, “Hyaluronic Acid FCH-60” (average molecular weight 500,000 to 700,000), “Hyaluronic Acid FCH-80” (average molecular weight 600,000 to 1,000,000), “Hyaluronic Acid FCH-120” (average molecular weight 1,000,000 to 1,400,000), and “Hyaluronic Acid FCH-150” (average molecular weight 1,400,000 to 1,800,000) manufactured by Kikkoman Biochemifa Corporation.
- HC Cosmetic Sodium Hyaluronate
- “Hyaluronic acid FCH-151C” (average molecular weight 1.4 million to 1.8 million), “Hyaluronic acid FCH-200” (average molecular weight 1.8 million to 2.2 million), “Hyaluronic acid FCH-201C” (average molecular weight 1.8 million to 2.2 million), “Hyaluronic acid FCH-80LE” (average molecular weight 600,000 to 1.2 million), “Hyaluronic acid GS-100” (average molecular weight 500,000 to 1.49 million), “Hyaluronic acid HA-QA” (average molecular weight 600,000 to 1.2 million), “Hyaluronic acid HA-AM” (average molecular weight 600,000 to 1.2 million), “Hyaluronic acid HA-Q” (average molecular weight 530,000 to 1.13 million), “Hyaluronic Acid M5070” (average molecular weight 500,000 to 700,000), “Hyaluronic Acid HA-LQ” (average molecular weight 850,000
- the content of component (A) in the ophthalmic composition is preferably 0.001 w/v% (mass/volume %, g/100 mL) or more, more preferably 0.005 w/v% or more, and even more preferably 0.001-0.3 w/v%, 0.005-0.2 w/v%, 0.01-0.15 w/v%, 0.01-0.1 w/v%, and 0.05-0.1 w/v% in that order. If the content of component (A) is too high, the viscosity of the ophthalmic composition may be too high, which may cause blurring, etc. By keeping the content at 0.1 w/v% or less, the occurrence of insoluble matter after freezing and thawing is further suppressed and the appearance stability is further improved.
- the chlorhexidine is not particularly limited, and any chlorhexidine generally used in preparations for mucosal application in the ophthalmic field can be used, and one type can be used alone or two or more types can be used in combination.
- Chlorhexidine may be in the form of a salt, and examples of the salt include chlorhexidine gluconate, chlorhexidine acetate, and chlorhexidine hydrochloride. Among these, chlorhexidine gluconate is preferred.
- the content of component (B) in the ophthalmic composition is preferably 0.0001 to 0.01 w/v%, more preferably 0.0002 to 0.005 w/v%, even more preferably 0.0002 to 0.002 w/v%, and particularly preferably 0.0002 to 0.0005 w/v%.
- the content of component (B) is preferably 0.0001 to 0.01 w/v%, more preferably 0.0002 to 0.005 w/v%, even more preferably 0.0002 to 0.002 w/v%, and particularly preferably 0.0002 to 0.0005 w/v%.
- Component (C) In the present invention, by blending (C) epsilon aminocaproic acid or a salt thereof in an ophthalmic composition, the ophthalmic composition containing (A) hyaluronic acid or a salt thereof and (B) chlorhexidine suppresses the generation of insoluble matter after freezing and thawing, which is a problem specific to ophthalmic products contained in a container sterilized by electron beam or gamma ray, and improves the appearance stability.
- Epsilon-aminocaproic acid is a known compound as a neutral amino acid also called 6-aminohexanoic acid.
- the salt of epsilon aminocaproic acid used in the present invention is not particularly limited as long as it is medicamentarily, pharmacologically (pharmaceutical) or physiologically acceptable, and can be used alone or in combination of two or more.
- Specific examples of salts of epsilon aminocaproic acid include organic acid salts [e.g., monocarboxylates (acetates, trifluoroacetates, butyrates, palmitates, stearates, etc.), polycarboxylates (fumarates, maleates, succinates, malons, etc.), oxycarboxylates (lactates, tartrates, citrates, etc.), organic sulfonates (methanesulfonates, toluenesulfonates, tosylates, etc.)], inorganic acid salts (e.g., hydrochlorides, sulfates, nitrates, hydrobromides, phosphates
- epsilon aminocaproic acid is preferred.
- component (C) a commercially available product can be used, for example, " ⁇ -amino-n-caproic acid EKD" manufactured by Sekisui Medical Co., Ltd.
- the content of component (C) in the ophthalmic composition is preferably 0.005 to 3 w/v%, more preferably 0.015 to 2 w/v%, even more preferably 0.01 to 2 w/v%, even more preferably 0.1 to 1 w/v%, even more preferably 0.2 to 0.8 w/v%, particularly preferably 0.2 to 0.5 w/v%, and most preferably 0.3 to 0.5 w/v%.
- Component (D) By further blending (D) propylene glycol in the ophthalmic composition of the present invention, the generation of insoluble matters after freezing and thawing can be further suppressed, and the appearance stability can be further improved.
- the content of component (D) in the ophthalmic composition is preferably 0.01 to 1 w/v%, more preferably 0.03 to 0.5 w/v%, and even more preferably 0.05 to 0.4 w/v%.
- Component (E) By further blending sodium chloride (E) in the ophthalmic composition of the present invention, the generation of insoluble matters after freezing and thawing can be further suppressed, and the appearance stability can be further improved.
- the content of component (E) in the ophthalmic composition is preferably 1.0 w/v% or less, more preferably 0.9 w/v% or less, and even more preferably 0.7 w/v% or less. More specifically, it is preferably 0.1 to 1.0 w/v%, more preferably 0.2 to 0.9 w/v%, and even more preferably 0.3 to 0.7 w/v%.
- the preferred range of the mass ratio of each component in the ophthalmic composition is shown below. Note that this ratio is a w/v % ratio, but is the same value as the mass ratio.
- (C)/(B) is preferably 100 or more, and more preferably 200 or more. More specifically, (C)/(B) is preferably 100 to 5,000, more preferably 150 to 3,000, even more preferably 200 to 2,000, particularly preferably 350 to 2,000, and most preferably 400 to 2,000.
- (D)/(C) is preferably 0.01 to 3.0, more preferably 0.1 to 2.0, even more preferably 0.2 to 1.2, and particularly preferably 0.3 to 1.0.
- (A)/(E) is preferably 0.05 to 0.70, more preferably 0.10 to 0.50, and even more preferably 0.13 to 0.30.
- ((C)+(D))/(B) is preferably 100 to 5,000, more preferably 150 to 4,000, and even more preferably 200 to 3,000.
- the ophthalmic composition of the present invention may contain other components in appropriate amounts within the range that does not impair the effects of the present invention.
- other components include drugs, surfactants, buffers, local anesthetics or soothing agents, pH adjusters, stabilizers, sugars, polyhydric alcohols, thickeners, cooling agents, other inorganic compounds, oily components, etc. These components may be used alone or in appropriate combinations of two or more. The contents of the components shown below are the preferred ranges when they are used, and are the amounts in the composition.
- Drugs include, for example, congestion relief ingredients (vasoconstrictors) (e.g., epinephrine, epinephrine hydrochloride, methylnorepinephrine, norepinephrine, ephedrine, methylephedrine, pseudoephedrine, ephedrine hydrochloride, tetrahydrozoline hydrochloride, naphazoline nitrate, phenylephrine hydrochloride, dl-methylephedrine hydrochloride, oxymetazoline, methoxamine, phenylpropanolamine, etilefrine, midodrine, tramazoline, synephrine ...
- congestion relief ingredients e.g., epinephrine, epinephrine hydrochloride, methylnorepinephrine, norepinephrine, ephedrine, methylephedrine, pseudoe
- the amount can be selected based on the effective amount of each drug, but it is preferably 0.001 to 5.0 w/v% in the ophthalmic composition, more preferably 0.001 to 1 w/v%, and even more preferably 0.001 to 0.1 w/v%.
- Surfactants include nonionic surfactants (e.g., polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene polyoxypropylene glycol, polyethylene glycol monostearate, etc.), amphoteric surfactants (e.g., glycine-type amphoteric surfactants such as alkyl diaminoethyl glycine and alkyl polyaminoethyl glycine, betaine-type amphoteric surfactants such as lauryl dimethyl amino acetate betaine and imidazolium betaine), and cationic surfactants (e.g., benzalkonium chloride, benzethonium chloride, etc.).
- nonionic surfactants e.g., polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene polyoxypropylene glycol, polyethylene glycol monoste
- the amount in the ophthalmic composition is preferably 0.0001 to 5 w/v%, more preferably 0.0003 to 3 w/v%, and even more preferably 0.003 to 1 w/v%.
- buffering agents include boric acid or its salts (e.g., borax), trometamol, citric acid or its salts (e.g., sodium citrate), phosphoric acid or its salts (e.g., sodium hydrogen phosphate, sodium dihydrogen phosphate), tartaric acid or its salts (e.g., sodium tartrate), gluconic acid or its salts (e.g., sodium gluconate), acetic acid or its salts (e.g., sodium acetate), glacial acetic acid, carbonic acid or its salts (e.g., sodium carbonate, sodium bicarbonate), various amino acids (potassium aspartate, aminoethylsulfonic acid, glutamic acid, sodium glutamate), etc.
- boric acid or its salts e.g., borax
- phosphoric acid or its salts e.g., sodium hydrogen phosphate, sodium
- the amount is preferably 0.001 to 5.0 w/v % in the ophthalmic composition, more preferably 0.001 to 2 w/v %, and even more preferably 0.001 to 1 w/v %.
- isotonicity agents examples include potassium chloride, calcium chloride, sodium bicarbonate, sodium carbonate, dry sodium carbonate, magnesium sulfate, sodium hydrogen phosphate, sodium dihydrogen phosphate, potassium dihydrogen phosphate, glycerin, etc.
- the amount thereof in the ophthalmic composition is preferably 0.00001 to 3 w/v%, more preferably 0.0001 to 2 w/v%, and even more preferably 0.005 to 1.5 w/v%.
- Local anesthetics or soothing agents include, for example, chlorobutanol, oxybuprocaine hydrochloride, dibucaine hydrochloride, tetracaine hydrochloride, piperocaine hydrochloride, procaine hydrochloride, proparacaine hydrochloride, hexothiocaine hydrochloride, lidocaine hydrochloride, etc.
- the amount thereof in the ophthalmic composition is preferably 0.001 to 1.0 w/v %, more preferably 0.01 to 0.5 w/v %.
- pH adjusters include inorganic acids and inorganic alkali agents.
- an example of an inorganic acid is (dilute) hydrochloric acid.
- examples of inorganic alkali agents include sodium hydroxide, potassium hydroxide, sodium carbonate, and sodium bicarbonate.
- Examples of monoethanolamine and diethanolamine are also included.
- the pH of the composition can be set to 3.5 to 13.0, and is preferably 3.5 to 8.0, and more preferably 5.5 to 8.0, from the viewpoint of further improving the various symptoms caused by destabilization of the tear lipid layer.
- the pH is measured at 25°C using a pH meter (HM-25R, manufactured by DKK-TOA Corporation).
- stabilizers examples include sodium edetate, sodium edetate hydrate, cyclodextrin, monoethanolamine, etc.
- stabilizers (antioxidants) include fat-soluble antioxidants such as dibutylhydroxytoluene (BHT), butylhydroxyanisole (BHA), and vitamin E (e.g., tocopherol acetate, tocopherol nicotinate, tocopherol succinate, etc.).
- water-soluble stabilizers examples include sulfites such as sodium sulfite, potassium sulfite, dried sodium sulfite (anhydrous sodium sulfite), sodium pyrosulfite, potassium pyrosulfite, sodium hydrogensulfite, and potassium hydrogensulfite, ascorbic acid, sodium ascorbate, etc.
- a stabilizer When a stabilizer is to be incorporated into an ophthalmic composition for soft contact lenses, it is preferable to use one that has low lens adsorption and accumulation properties, and examples of such stabilizers include sodium edetate, sodium edetate hydrate, cyclodextrin, vitamin E, vitamin A, sodium sulfite, potassium sulfite, dried sodium sulfite (anhydrous sodium sulfite), sodium pyrosulfite, potassium pyrosulfite, sodium hydrogensulfite, and potassium hydrogensulfite, ascorbic acid, sodium ascorbate, etc.
- the amount is preferably 0.001 to 5.0 w/v% in the ophthalmic composition, more preferably 0.001 to 1 w/v%, and even more preferably 0.001 to 0.1 w/v%.
- sugars examples include glucose, cyclodextrin, xylitol, sorbitol, mannitol, etc. These may be in the d-, l- or dl-form.
- Sugars have moisturizing properties and are effective in increasing moisture when applied to the eye, and can also be used as isotonicity agents. When sugars are added, their amount in the ophthalmic composition is preferably 0.001 to 5.0 w/v%, more preferably 0.001 to 1 w/v%, and even more preferably 0.001 to 0.1 w/v%.
- polyhydric alcohols examples include glycerin, butylene glycol, polyethylene glycol, xylitol, mannitol, and sorbitol.
- Polyhydric alcohols have moisturizing properties and can increase the moisture content of the eye when applied, and can also be used as isotonicity agents.
- Glycerin can also be used as a solubilizer for cooling agents.
- their amount in the ophthalmic composition is preferably 0.001 to 5.0 w/v%, more preferably 0.001 to 1 w/v%, and even more preferably 0.001 to 0.1 w/v%.
- Thickening agents include water-soluble polymeric compounds, such as polyvinylpyrrolidone, hydroxyethyl cellulose, hydroxypropyl methylcellulose, methyl cellulose, polyvinyl alcohol, sodium chondroitin sulfate, polyacrylic acid, carboxyvinyl polymer, polyethylene glycol, dextran, alginic acid, sodium alginate, and xanthan gum.
- thickening agents When thickening agents are added, they can be added to an extent that does not impair the feeling of use, such as stickiness or blurring.
- the amount is preferably 0.001 to 5.0 w/v% in the ophthalmic composition, more preferably 0.001 to 1 w/v%, and even more preferably 0.001 to 0.1 w/v%.
- the refreshing agent may be, for example, menthol, camphor, borneol, geraniol, cineole, linalool, anethole, eugenol, limonene, ryunou, etc. Any of the d-, l- or dl-isomers may be used.
- essential oils such as peppermint oil, cool mint oil, spearmint oil, peppermint oil, eucalyptus oil, rose oil, fennel oil, bergamot oil, and cinnamon oil may be used.
- the refreshing agent can enhance the feeling of the effect of sustained moisture.
- the amount thereof in the ophthalmic composition is preferably 0.0001 to 1 w/v%, more preferably 0.0005 to 0.2 w/v%, and even more preferably 0.001 to 0.1 w/v%.
- inorganic compounds include sodium thiosulfate, titanium oxide, zinc chloride, etc. When these are added, the amount is preferably 0.001 to 5 w/v% in the ophthalmic composition, more preferably 0.001 to 1 w/v%, and even more preferably 0.001 to 0.1 w/v%.
- the ophthalmic composition of the present invention is preferably an "aqueous ophthalmic composition".
- the "aqueous ophthalmic composition” refers to an ophthalmic composition in which the medium is water.
- the content of water in the composition is preferably 90.0 to 99.5 w/v %, and more preferably 95.0 to 99.0 w/v %.
- the transmittance of the ophthalmic composition at 600 nm is preferably 98.0 to 100.0%, and more preferably 99.0 to 100.0%.
- the transmittance of the ophthalmic composition at 600 nm after freezing and thawing is preferably 98.0% or more, more preferably 98.5% or more, and even more preferably 99.0% or more.
- the formulation of the composition of the present invention is not particularly limited, and can be suitably used, for example, as eye drops (including eye drops that can be applied while wearing contact lenses), eyewash, contact lens application solution, contact lens removal solution, etc. It can be particularly suitably used as eye drops and contact lens application solution, with eye drops being particularly preferred. Among these, it is suitable as an ophthalmic composition for contact lenses used by contact lens wearers, such as eye drops that can be applied while wearing contact lenses, contact lens application solution, contact lens removal solution, etc.
- Contact lenses include, but are not limited to, hard contact lenses (including O2 hard contact lenses), soft contact lenses (including both ionic and non-ionic), silicone hydrogel contact lenses, colored contact lenses, etc. When no preservative is added, the composition is particularly suitable for soft contact lenses and silicone hydrogel contact lenses.
- the method for producing the composition of the present invention is not particularly limited, but for example, the composition can be obtained by pre-dissolving (A), then mixing the solution with a solution containing an aqueous component such as component (B), adjusting the pH, and then adjusting the total volume with water.
- the method for mixing each liquid may be a general method, and is appropriately carried out using a pulsator, propeller blade, paddle blade, turbine blade, etc., but the rotation speed is not particularly limited, and it is preferable to set it to a level that does not cause vigorous foaming.
- the mixing temperature of each liquid is not particularly limited, but it is preferable that it is not high from the viewpoint of the stability of component (A), and is appropriately selected from the range of 20 to 60°C.
- the present invention is an ophthalmic product comprising the above-mentioned ophthalmic composition contained in a container that has been sterilized with electron beams or gamma rays.
- the container is preferably a plastic container, and may be made of materials such as polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), polybutylene, polycarbonate, polyarylate, vinyl chloride, or a composite of these materials. Among these, polyethylene, polyethylene terephthalate, and polypropylene are preferred.
- the amount of the ophthalmic composition in the product can be appropriately selected depending on the product and its method of use. For example, in the case of eye drops, 2 to 20 mL is preferred, and 5 to 20 mL is more preferred.
- the container for the ophthalmic composition is not particularly limited, and may be a multi-dose (multi-unit) container or a single-use unit-dose container. A multi-dose (multi-unit) container is preferred.
- the method of sterilization using electron beams or gamma rays is not particularly limited, and can be carried out according to conventionally known sterilization conditions.
- the ophthalmic composition may be contained in a container that has been sterilized with electron beams or gamma rays, and an inert gas such as nitrogen may be sealed in the space formed between the container and the packaging body, or the ophthalmic composition may be filled into the container, and then sealed in the packaging body together with an oxygen scavenger.
- the inner stopper and cap may be made of a material used for known containers of ophthalmic products.
- the material of the inner stopper is preferably polyethylene or polypropylene having a melt flow rate of 2.0 or less, preferably 1.2 to 1.8.
- the material of the cap is preferably polyethylene or polypropylene.
- the method of the present invention is a method for stabilizing the appearance of the ophthalmic composition, which comprises (A) hyaluronic acid or its salt and (B) chlorhexidine, and is contained in a container that is sterilized by electron beam or gamma ray, and (C) epsilon aminocaproic acid or its salt is added to the ophthalmic composition.
- the preferred components and amounts are the same as above.
- this appearance stabilization method refers to suppressing the deterioration of the appearance of the ophthalmic product after freezing and thawing (freezing and then returning to room temperature).Specifically, the appearance stability after freezing and thawing is evaluated by the method described in Examples.
- the 600 nm transmittance of the ophthalmic composition product of the present invention is preferably 99.0 to 100.0%, and the transmittance after three repeated freezing and thawing operations is preferably 97.5 to 100.0%, more preferably 98.0 to 100.0%.
- the present invention will be described in detail below with examples and comparative examples, but the present invention is not limited to the following examples.
- the present invention will be described in detail below with examples and comparative examples, but the present invention is not limited to the following examples.
- the "%" of the composition is "w/v % (g/100 mL)" and the ratio is w/v % ratio, which is the same value as the mass ratio.
- Examples and Comparative Examples In order to obtain the composition shown in the table, the components other than purified water and the pH adjuster were dissolved in 90 mL of purified water and mixed by stirring at room temperature (25°C) for 18 hours. Next, the pH of the ophthalmic composition was adjusted with a pH adjuster as necessary so that the pH of the ophthalmic composition at 25°C would be 6.5, and the remaining purified water was added to make the total volume 100 mL to obtain an ophthalmic composition. A pH meter (manufactured by DKK-TOA Corporation, product name "HM-25R”) was used to measure the pH. The obtained composition was evaluated as follows. The results are also shown in the table. The pH of the composition was in the range of 6.0 to 7.0.
- Propylene glycol Japanese Pharmacopoeia Propylene Glycol, manufactured by ADEKA Corporation
- Sodium chloride Japanese Pharmacopoeia Sodium Chloride SG, manufactured by Tomita Pharmaceutical Co., Ltd.
- Sodium edetate Sodium edetate hydrate "For manufacturing only", manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.
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Abstract
Description
1.(A)ヒアルロン酸又はその塩、
(B)クロルヘキシジン、及び
(C)イプシロンアミノカプロン酸又はその塩
を含有する眼科用組成物が、
電子線又はガンマ線にて滅菌処理された容器に収容された眼科用製品。
2.(C)/(B)で表される含有質量比が100~5,000である、1記載の眼科用製品。
3.(A)成分の眼科用組成物中の含有量が、0.01~0.1w/v%である1又は2記載の眼科用製品。
4.眼科用組成物が、(D)プロピレングリコールをさらに含有する1~3のいずれかに記載の眼科用製品。
5.眼科用組成物が、(E)塩化ナトリウムをさらに含有し、その眼科用組成物中の含有量が0.1~1.0w/v%である1~4のいずれかに記載の眼科用製品。
6.容器の材質が、ポリエチレン、ポリエチレンテレフタレート及びポリプロピレンから選ばれる1種以上である、1~5のいずれかに記載の眼科用製品。
[(A)成分]
本発明のヒアルロン酸又はその塩は特に限定されるものではなく、眼科用領域等における粘膜適用製剤に通常用いられる任意のヒアルロン酸類を用いることができる。ヒアルロン酸類の例として、ヒアルロン酸、その誘導体、これらの薬学的生理学的に許容される塩類が挙げられる。鶏冠から抽出する方法、微生物による発酵法等により得たものを使用でき、由来や製造法は特に限定されない。ヒアルロン酸又はその塩は、1種単独で又は2種以上を適宜組み合わせて用いることができる。(A)成分の具体例として、ヒアルロン酸、ヒアルロン酸ナトリウム、ヒアルロン酸カリウム、ヒアルロン酸マグネシウム、ヒアルロン酸カルシウム等が挙げられる。中でも、ヒアルロン酸ナトリウムが好ましい。(A)成分としては市販品を用いることができ、例えば、精製ヒアルロン酸ナトリウム(生化学工業(株)製、キユーピー(株)製、キッコーマンバイオケミファ(株)製、岩城製薬(株)製、ブルーメイジバイオテクノロジー(株)製)等が挙げられる。
クロルヘキシジンは特に限定されるものではなく、眼科用領域等における粘膜適用製剤に通常用いられる任意のクロルヘキシジンを用いることができ、1種単独で又は2種以上組み合わせて用いることができる。クロルヘキシジンは塩であってもよく、例えば、クロルヘキシジングルコン酸塩、クロルヘキシジン酢酸塩、クロルヘキシジン塩酸塩等が挙げられる。中でも、クロルヘキシジングルコン酸塩が好ましい。
本発明において、(C)イプシロンアミノカプロン酸又はその塩を眼科用組成物に配合することで、(A)ヒアルロン酸又はその塩及び(B)クロルヘキシジンを含有する眼科用組成物が、電子線又はガンマ線にて滅菌処理された容器に収容された眼科用製品の特有の課題である、凍結融解後における不溶物の発生を抑制し、外観安定性を向上させる。イプシロン-アミノカプロン酸は、6-アミノヘキサン酸とも称される中性アミノ酸として公知の化合物である。本発明で用いられるイプシロンアミノカプロン酸の塩としては、医薬上、薬理学的に(製薬上)又は生理学的に許容されるものであれば、特に制限されず、1種単独で又は2種以上組み合わせて用いることができる。イプシロンアミノカプロン酸の塩として、具体的には、有機酸塩[例えば、モノカルボン酸塩(酢酸塩、トリフルオロ酢酸塩、酪酸塩、パルミチン酸塩、ステアリン酸塩等)、多価カルボン酸塩(フマル酸塩、マレイン酸塩、コハク酸塩、マロン酸塩等)、オキシカルボン酸塩(乳酸塩、酒石酸塩、クエン酸塩等)、有機スルホン酸塩(メタンスルホン酸塩、トルエンスルホン酸塩、トシル酸塩等)等]、無機酸塩(例えば、塩酸塩、硫酸塩、硝酸塩、臭化水素酸塩、リン酸塩等)、有機塩基との塩(例えば、メチルアミン、トリエチルアミン、トリエタノールアミン、モルホリン、ピペラジン、ピロリジン、トリピリジン、ピコリン等の有機アミンとの塩等)、無機塩基との塩[例えば、アンモニウム塩;アルカリ金属(ナトリウム、カリウム等)、アルカリ土類金属(カルシウム、マグネシウム等)、アルミニウム等の金属との塩等]等が挙げられる。これらの中でも、イプシロンアミノカプロン酸が好ましい。(C)成分としては市販品を用いることができ、例えば、積水メディカル(株)製の「ε-アミノ-n-カプロン酸 EKD」等が挙げられる。
本発明の眼科用組成物に、(D)プロピレングリコールをさらに配合することで、凍結融解後における不溶物の発生をさらに抑制し、外観安定性をより向上させることができる。
本発明の眼科用組成物に、(E)塩化ナトリウムをさらに配合することで、凍結融解後における不溶物の発生をさらに抑制し、外観安定性をより向上させることができる。
本発明の眼科用組成物には、本発明の効果を損なわない範囲で、その他の成分を適量配合することができる。その他の成分としては、薬物、界面活性剤、緩衝剤、局所麻酔剤又は無痛化剤、pH調整剤、安定化剤、糖類、多価アルコール、粘稠剤、清涼化剤、その他の無機化合物、油性成分等が挙げられる。これらの成分は、1種単独で又は2種以上を適宜組み合わせて配合することができる。下記に示す成分の含有量は、配合する場合の好ましい範囲であり、組成物中の量である。
本発明の眼科用組成物は、「水性眼科用組成物」であることが好ましい。本発明において、「水性眼科用組成物」とは、媒質が水である眼科用組成物をいう。水の含有量は、組成物中90.0~99.5w/v%が好ましく、95.0~99.0w/v%がより好ましい。
本発明の組成物の製造方法は特に限定されないが、例えば、(A)を予備溶解させ、その後、溶液と(B)成分等の水性成分を含む溶液と混合し、pH調整後、総体積を水により調整することにより得ることができる。各液体の混合方法は、一般的な方法でよく、パルセーター、プロペラ羽根、パドル羽根、タービン羽根等を用いて適宜行われるが、回転数は特に限定されず、激しく泡立たない程度に設定することが好ましい。各液体の混合温度は特に限定しないが、(A)成分の安定性の観点から高温でないことが好ましく、20~60℃の範囲から適宜選定される。
本発明は、上記眼科用組成物が、電子線又はガンマ線にて滅菌処理された容器に収容された眼科用製品である。
容器としては、プラスチック製容器が好ましく、ポリエチレン(PE)、ポリエチレンテレフタレート(PET)、ポリプロピレン(PP)、ポリブチレン、ポリカーボネート、ポリアリレート、塩化ビニル等の材質又はこれら材質の複合体からなるもの等を用いることができる。これらの中でもポリエチレン、ポリエチレンテレフタレート、ポリプロピレンが好ましい。製品中の眼科用組成物の量は、製品及びその使用方法に応じて適宜選択することができ、例えば点眼剤の場合、2~20mLが好ましく、5~20mLがより好ましい。眼科用組成物の容器は、特に限定されないがマルチドーズ型(マルチユニット型)容器でもよく、1回使い切りのユニットドーズ型容器でもよい。マルチドーズ型(マルチユニット型)容器が好ましい。
眼科用組成物を電子線又はガンマ線にて滅菌処理された容器に収容し、上記容器と上記包装体との間に形成された空間に窒素等の不活性ガスを封入してもよく、眼科用組成物を上記容器に充填、収容後、脱酸素剤と共に包装体により密封してもよい。中栓、キャップは、公知の眼科用製品の容器に使用される材質のキャップを使用することができる。中栓の材質としては、メルトフローレート2.0以下、好ましくは1.2~1.8のポリエチレン、ポリプロピレンが好ましい。キャップの材質としては、ポリエチレン、ポリプロピレンが好ましい。
本発明の方法は、(A)ヒアルロン酸又はその塩、及び(B)クロルヘキシジンを含有する眼科用組成物が、電子線又はガンマ線にて滅菌処理された容器に収容された眼科用製品において、(C)イプシロンアミノカプロン酸又はその塩を配合する、上記眼科用組成物の外観安定化方法である。これらの方法において、好適な成分、量は上記と同じである。なお、この外観安定化方法とは、上記眼科用製品を、凍結融解(凍結させた後再び室温に戻す)後に、外観が悪化することを抑制することをいう。具体的には実施例に記載の方法で凍結融解後の外観安定性を評価する。
表に示す配合組成となるように、精製水及びpH調整剤以外の成分を90mLの精製水に溶解し、室温(25℃)で18時間攪拌混合した。次いで、眼科用組成物の25℃でのpHが6.5となるように、必要に応じてpH調整剤でpHを調整した後、全量が100mLになるように残りの精製水を加えて、眼科用組成物を得た。pHの測定には、pHメーター(東亜ディーケーケー株式会(株)製、商品名「HM-25R」)を用いた。得られた組成物について、下記評価を行った。結果を表中に併記する。なお、組成物のpHは6.0~7.0の範囲であった。
電子線にて滅菌した容器(照射量18kGy)及び滅菌していない容器(容量10mL)に、調製した被験眼科用組成物(容量10mL)を充填し収容した。得られた眼科用製品を-20℃で凍結させ、眼科用組成物が凍結したことを確認した後に常温に取り出し、解凍させた。この凍結と融解の操作を3回繰り返した。
初期と、凍結と融解の操作を3回繰り返した後の眼科用組成物について、600nmの透過率を、分光光度計(UV-1800、(株)島津製作所)を用いて測定した。
凍結と融解の操作を3回繰り返した後の眼科用製品の外観を、蛍光灯下で目視観察し、粒子の有無を確認した。結果を下記で示す。
〇:粒子が認められない
×:粒子が認められる
ヒアルロン酸ナトリウム:ヒアルロンサンHA-AML、キユーピー(株)製
クロルヘキシジングルコン酸塩:20w/v%マスキン液、丸石製薬(株)製
イプシロンアミノカプロン酸:ε-アミノ-n-カプロン酸 EKD、積水メディカル(株)製
プロピレングリコール:日本薬局方プロピレングリコール、(株)ADEKA製
塩化ナトリウム:日本薬局方塩化ナトリウムSG、富田製薬(株)製
エデト酸ナトリウム:エデト酸ナトリウム水和物「製造専用」、富士フイルム和光純薬(株)製
Claims (6)
- (A)ヒアルロン酸又はその塩、
(B)クロルヘキシジン、及び
(C)イプシロンアミノカプロン酸又はその塩
を含有する眼科用組成物が、
電子線又はガンマ線にて滅菌処理された容器に収容された眼科用製品。 - (C)/(B)で表される含有質量比が100~5,000である、請求項1記載の眼科用製品。
- (A)成分の眼科用組成物中の含有量が、0.01~0.1w/v%である請求項1又は2記載の眼科用製品。
- 眼科用組成物が、(D)プロピレングリコールをさらに含有する請求項1又は2記載の眼科用製品。
- 眼科用組成物が、(E)塩化ナトリウムをさらに含有し、その眼科用組成物中の含有量が0.1~1.0w/v%である請求項1又は2記載の眼科用製品。
- 容器の材質が、ポリエチレン、ポリエチレンテレフタレート及びポリプロピレンから選ばれる1種以上である、請求項1又は2記載の眼科用製品。
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| KR1020257001130A KR20250123098A (ko) | 2022-12-21 | 2023-12-05 | 안과용 제품 |
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| JP6267394B1 (ja) | 2017-09-07 | 2018-01-24 | 参天製薬株式会社 | 水溶性粘稠化剤を含有する医薬組成物 |
-
2023
- 2023-12-05 WO PCT/JP2023/043479 patent/WO2024135344A1/ja not_active Ceased
- 2023-12-05 CN CN202380071588.7A patent/CN120051724A/zh active Pending
- 2023-12-05 KR KR1020257001130A patent/KR20250123098A/ko active Pending
- 2023-12-05 JP JP2024565768A patent/JPWO2024135344A1/ja active Pending
- 2023-12-14 TW TW112148883A patent/TW202426010A/zh unknown
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Also Published As
| Publication number | Publication date |
|---|---|
| CN120051724A (zh) | 2025-05-27 |
| KR20250123098A (ko) | 2025-08-14 |
| TW202426010A (zh) | 2024-07-01 |
| JPWO2024135344A1 (ja) | 2024-06-27 |
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