WO2010150378A1 - 眼科用組成物 - Google Patents
眼科用組成物 Download PDFInfo
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- WO2010150378A1 WO2010150378A1 PCT/JP2009/061591 JP2009061591W WO2010150378A1 WO 2010150378 A1 WO2010150378 A1 WO 2010150378A1 JP 2009061591 W JP2009061591 W JP 2009061591W WO 2010150378 A1 WO2010150378 A1 WO 2010150378A1
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- vitamin
- ophthalmic composition
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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
- A61K31/045—Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
- A61K31/07—Retinol compounds, e.g. vitamin A
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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
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/20—Carboxylic acids, e.g. valproic acid having a carboxyl group bound to a chain of seven or more carbon atoms, e.g. stearic, palmitic, arachidic acids
- A61K31/203—Retinoic acids ; Salts 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
- A61K31/21—Esters, e.g. nitroglycerine, selenocyanates
- A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
- A61K31/22—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acyclic acids, e.g. pravastatin
-
- 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
- A61K31/21—Esters, e.g. nitroglycerine, selenocyanates
- A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
- A61K31/22—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acyclic acids, e.g. pravastatin
- A61K31/23—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acyclic acids, e.g. pravastatin of acids having a carboxyl group bound to a chain of seven or more carbon atoms
-
- 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
-
- 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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- 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
-
- 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
Definitions
- the present invention relates to an ophthalmic composition containing a high concentration of vitamin A.
- Vitamin A is attracting attention as an effective component for the prevention and treatment of cornea / conjunctiva and keratoses of mucosa.
- vitamin A which is a fat-soluble vitamin, is very sensitive to air, light, heat, acid, metal ions, etc., and is particularly unstable in an aqueous solution, so it is suitable for ophthalmic compositions such as eye drops. It was difficult to mix stably.
- nonionic surfactants such as polyethylene hardened castor oil (see, for example, JP-A-5-33156: Patent Document 1), hydrophobic A method for stabilizing with vitamin E as an oxidizing agent (for example, see JP-A-6-247853: Patent Document 2) and a stabilization technique from a container / packaging surface (for example, JP-A-6-40907): Patent Document 3, Japanese Patent Application Laid-Open No. 2003-113078: Patent Document 4) and a stabilization technique produced by high energy emulsification (for example, Japanese Patent Application Laid-Open No. 2002-332225: Patent Document 5) have been proposed.
- nonionic surfactants such as polyethylene hardened castor oil
- Patent Document 1 hydrophobic A method for stabilizing with vitamin E as an oxidizing agent
- Patent Document 3 Japanese Patent Application Laid-Open No. 2003-113078: Patent Document 4
- a stabilization technique produced by high energy emulsification for example, Japanese Patent Application Laid-Open No. 2002-332225
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide an ophthalmic composition containing vitamin A in a high concentration and stabilized, and a method for stabilizing vitamin A.
- an ophthalmic composition containing 50,000 units / 100 mL or more of vitamin A has a polyoxyethylene polyoxypropylene glycol of 0.4 W / V% or more. It has been found that the stability of vitamin A can be remarkably increased by blending with trometamol, and the present invention has been made.
- the present invention provides the following ophthalmic composition and method for stabilizing vitamin A.
- An ophthalmic composition containing (A) 50,000 units / 100 mL or more of vitamin A, (B) 0.4 W / V% or more of polyoxyethylene polyoxypropylene glycol, and (C) trometamol. [2].
- the ophthalmic composition according to [1], wherein the content of the component (A) is 200,000 units / 100 mL or more. [4].
- Vitamin A is characterized by comprising polyoxyethylene polyoxypropylene glycol 0.4 W / V% or more and (C) trometamol in an ophthalmic composition containing 50,000 units / 100 mL or more of vitamin A. Stabilization method.
- the present invention it is possible to provide a vitamin A-containing ophthalmic composition in which vitamin A is stabilized, and a method for stabilizing vitamin A, even if the vitamin A concentration is high.
- the ophthalmic composition of the present invention contains (A) 50,000 units / 100 mL or more of vitamin A, (B) 0.4 W / V% or more of polyoxyethylene polyoxypropylene glycol, and (C) trometamol. To do. It is to be noted that another object of the present invention is to provide an ophthalmic composition having a dry eye improving effect, and another effect of the present invention is a dry eye improving effect.
- Vitamin A examples include, in addition to vitamin A itself, vitamin A-containing mixtures such as vitamin A oil, vitamin A derivatives such as vitamin A fatty acid esters, and the like. Specific examples include retinol palmitate, retinol acetate, retinol, retinoic acid, and retinoid. Of these, retinol palmitate, retinol acetate, and retinoic acid are preferred. Retinol palmitate is usually commercially available in the range of 1 million to 1.8 million international units (hereinafter abbreviated as “unit” or “I.U.”), specifically, “Palmitin” manufactured by Roche Vitamin Japan Co., Ltd. Acid retinol "(1.7 million IU / g) and the like.
- unit 1 million to 1.8 million international units
- a component can be used individually by 1 type or in combination of 2 or more types, The content is 50,000 units / 100mL or more with respect to the ophthalmic composition whole quantity.
- Vitamin A has the effect of treating corneal / conjunctival damage, improving dry eye, and improving fatigue and blurred vision. By making the dose more than 50,000 units / 100 mL, these effects are more prominent. be able to.
- the amount of component (A) is preferably 100,000 units / 100 mL or more, more preferably 200,000 units / 100 mL or more, and more preferably 300,000 units / 100 mL or more.
- the upper limit is preferably 500,000 units / 100 mL or less from the viewpoint of stability.
- W (mass) / V (volume)% (g / 100 mL) it is preferably 0.03 to 0.3 W / V%, although it depends on the unit of vitamin A to be blended.
- (B) Polyoxyethylene polyoxypropylene glycol In the present invention, even if it is an ophthalmic composition containing 50,000 units / 100 mL or more of vitamin A by using (B) polyoxyethylene polyoxypropylene glycol, While maintaining its stability, it is less irritating to the eyes and the effects of corneal damage treatment and dry eye treatment are improved. These effects are insufficient with surfactants such as sorbitan fatty acid esters and polyoxyethylene hydrogenated castor oil, which are often used in eye drops.
- the polyoxyethylene polyoxypropylene glycol is not particularly limited, and those described in the pharmaceutical additive standards (medicine regulations) can be used.
- the average degree of polymerization of ethylene oxide is preferably 4 to 200, more preferably 20 to 200, and the average degree of polymerization of propylene oxide is preferably 5 to 100, more preferably 20 to 70, and may be a block copolymer or a random polymer.
- polyoxyethylene (200) polyoxypropylene (70) glycol Lutrol F127 (manufactured by BASF), Unilube 70DP-950B (manufactured by NOF Corporation), polyoxyethylene (120) polyoxypropylene ( 40) Glycol (Pluronic F-87), Polyoxyethylene (160) Polyoxypropylene (30) Glycol (Pluronic F-68, also known as Poloxamer 188): Pronon # 188P (NOF Corporation), polyoxyethylene ( 42) Polyoxypropylene (67) glycol (Pluronic P123, also known as Poloxamer 403), Polyoxyethylene (54) Polyoxypropylene (39) Glycol (Pluronic P85): Pronon # 235P (Nippon Oil Co., Ltd.), polyoxy Echile (20) polyoxypropylene (20) glycol (Pluronic L-44), Tetronic and the like. Of these, polyoxyethylene (200) polyoxypropylene (70) glycol,
- Component (B) may be used alone or in combination of two or more, and the content thereof is 0.4 W / V% or more based on the total amount of the ophthalmic composition, and 0.4 to 5 W / V% is preferable, 0.5 to 3 W / V% is more preferable, 0.6 to 2 W / V% is more preferable, and 1 to 2 W / V% is particularly preferable. If it is less than 0.4 W / V%, it is difficult to solubilize vitamin A, and 5 W / V% or less is preferable from the viewpoint of storage stability of vitamin A.
- the (A) component represented by [(A) vitamin A unit / 100 mL] / [(B) polyoxyethylene polyoxypropylene glycol g / 100 mL] and (B) component
- the ratio is preferably 10,000 to 150,000, more preferably 15,000 to 100,000, and further preferably 25,000 to 50,000.
- the ophthalmic composition of the present invention preferably contains trometamol from the viewpoint of improving the storage stability of vitamin A. It is a new finding of the present inventor that trometamol has an effect of improving the storage stability of vitamin A. Although this mechanism is not clear, for example, it can be considered as follows.
- Polyoxyethylene polyoxypropylene glycol is a nonionic surfactant having a polyoxyethylene (EO) chain and a polyoxypropylene (PO) chain. Encapsulates vitamin A with the EO chain on the outside and the PO chain on the inside to form micelles.
- EO polyoxyethylene
- PO polyoxypropylene
- trometamol binds to the EO chain outside the micelle, thereby strengthening the micelle structure and reducing the degree of freedom. As a result, the molecular mobility of the PO chain inside the micelle is reduced. From the above, it is considered that trometamol contributes to the stabilization of micelles formed from vitamin A and polyoxyethylene polyoxypropylene glycol, and consequently contributes to the storage stability of vitamin A.
- the content of trometamol is preferably 0.01 to 5 W / V%, more preferably 0.05 to 5 W / V%, and further preferably 0.1 to 3 W / V% with respect to the total amount of the ophthalmic composition. 0.5 to 2 W / V% is particularly preferable. If it is less than 0.01 W / V%, the storage stabilizing effect of vitamin A may be insufficient, and if it exceeds 5 W / V%, eye irritation may be felt.
- the mass ratio of the component (B) and the component (C) represented by (B) :( C) is preferably 1:30 to 30: 1, and 1:20 ⁇ 20: 1 is more preferred, 1:10 to 10: 1 is more preferred, and 1:10 to 3: 1 is even more preferred.
- Antioxidant It is preferable to mix
- Antioxidants include d- ⁇ -tocopherol, d- ⁇ -tocopherol, d- ⁇ -tocopherol, d- ⁇ -tocopherol, dl- ⁇ -tocopherol, d- ⁇ -tocopherol acetate, dl- ⁇ -tocopherol acetate, Vitamin Es such as dl- ⁇ -tocopherol acetate, dl- ⁇ -tocopherol acetate, dl- ⁇ -tocopherol acetate, dl- ⁇ -tocopherol acetate, dl- ⁇ -tocopherol acetate, fat-soluble antioxidants such as dibutylhydroxytoluene and butylhydroxyanisole, vitamins And water-soluble antioxidants such as C, hydroquinone, cysteine, and glutathione.
- fat-soluble antioxidants such as vitamin E are preferable, d- ⁇ -tocopherol acetate and dibutylhydroxytoluene are more preferable, and d- ⁇ -tocopherol acetate is more preferable. It is also preferable to use vitamin E and dibutylhydroxytoluene together.
- Antioxidants can be used singly or in appropriate combination of two or more, and the content thereof is preferably 0.005 to 5 W / V% with respect to the total amount of the ophthalmic composition.
- the storage stability of A can be improved, and 0.005 to 1 W / V% is more preferable, and 0.005 to 0.2 W / V% is more preferable.
- various components to be blended in the ophthalmic composition can be blended within a range that does not impair the effects of the present invention.
- these components include polyhydric alcohols, surfactants other than component (B), buffers, thickeners, sugars, pH adjusters, preservatives, isotonic agents, stabilizers, cooling agents, drugs , Water and the like. These can be used individually by 1 type or in combination of 2 or more types, respectively, and can mix
- polyhydric alcohol examples include glycerin, propylene glycol, butylene glycol, and polyethylene glycol.
- the content of the polyhydric alcohol is preferably 0.01 to 5 W / V%, more preferably 0.05 to 3 W / V% with respect to the total amount of the ophthalmic composition.
- a surfactant other than the component (B) may be used in combination, such as polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester (polysorbate 80), and the like.
- the stability is further improved by the combined use.
- the content of these is preferably 0.0001 to 5 W / V%, more preferably 0.005 to 3 W / V%, based on the total amount of the ophthalmic composition. From the viewpoint of the effect of treating corneal / conjunctival damage and the treatment of dry eye, the amount of these surfactants should be small, preferably 0.5 W / V% or less.
- the buffer examples include boric acid or a salt thereof (such as borax), citric acid or a salt thereof (such as sodium citrate), phosphoric acid or a salt thereof (such as sodium monohydrogen phosphate), tartaric acid or a salt thereof (tartaric acid) Sodium, etc.), gluconic acid or a salt thereof (sodium gluconate, etc.), acetic acid or a salt thereof (sodium acetate, etc.), among them, boric acid or borax are particularly preferred because a particularly high antiseptic effect is obtained.
- the content of the buffer is preferably 0.001 to 10 W / V%, more preferably 0.01 to 5 W / V%, based on the total amount of the ophthalmic composition.
- vitamin A can be further stabilized by blending boric acid and citric acid.
- the thickener examples include polyvinylpyrrolidone, hydroxyethylcellulose, hydroxypropylmethylcellulose, methylcellulose, polyvinyl alcohol, sodium hyaluronate, sodium chondroitin sulfate, polyacrylic acid, carboxyvinyl polymer, and the like. By blending these, the retention is increased and the treatment effect for corneal / conjunctival damage is further improved.
- the content of the thickening agent relative to the total amount of the ophthalmic composition is, for example, 0.001 to 10 W / V%, preferably 0.001 to 5 W / V%, more preferably 0.01 to 3 W / V%. is there.
- sugars include glucose, cyclodextrin, xylitol, sorbitol, mannitol and the like. These may be any of D-form, L-form and DL-form.
- the content of the saccharide with respect to the total amount of the ophthalmic composition is, for example, 0.001 to 10 W / V%, preferably 0.005 to 5 W / V%, more preferably 0.01 to 3 W / V%.
- the pH adjuster it is preferable to use an inorganic acid or an inorganic alkali agent.
- (diluted) hydrochloric acid is mentioned as an inorganic acid.
- the inorganic alkaline agent include sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogen carbonate and the like. Of these, hydrochloric acid and sodium hydroxide are preferable.
- the pH (20 ° C.) of the ophthalmic composition of the present invention is preferably 4.0 to 9.0, more preferably 5.0 to 8.0, and still more preferably 6.0 to 8.0. . In the present invention, pH is measured at 20 ° C. using a pH osmometer (HOSM-1, Toa DKK).
- the content of the pH adjuster with respect to the total amount of the ophthalmic composition is, for example, 0.00001 to 10 W / V%, preferably 0.0001 to 5 W / V%, more preferably 0.001 to 3 W / V%. .
- Examples of the preservative include benzalkonium chloride, benzethonium chloride, sorbic acid or a salt thereof, paraoxybenzoic acid ester (methylparaben, ethylparaben, propylparaben, etc.), chlorhexidine gluconate, thimerosal, phenylethyl alcohol, alkyldiaminoethyl hydrochloride Examples include glycine, polyhexanide hydrochloride, and polydronium chloride.
- the content of the preservative with respect to the total amount of the ophthalmic composition is, for example, 0.00001 to 5 W / V%, preferably 0.0001 to 3 W / V%, more preferably 0.001 to 2 W / V%.
- a cationic surfactant selected from benzalkonium chloride and benzethonium chloride (partially a cationic preservative), paraoxybenzoic acid, from the viewpoint of treatment for corneal / conjunctival damage and improvement of dry eye
- the content of the hydrophobic preservative selected from esters (methylparaben, ethylparaben, propylparaben, etc.) and chlorobutanol is preferably 0.004 W / V% or less, more preferably 0.003 W / V% or less, It is more preferable that these are not contained and are not blended.
- the mechanism by which these prevent the effect of treating corneal / conjunctival damage is not clear, but is also considered as follows.
- (B) Polyoxyethylene polyoxypropylene glycol wraps vitamin A with the EO chain on the outside and the PO chain on the inside to form micelles. These micelles are adsorbed on the cornea surface, and vitamin A is absorbed inside the cornea. Cationic surfactants have surface-active properties, and hydrophobic preservatives have high hydrophobicity, which changes the micelle surface state, thereby inhibiting the adsorption of vitamin A to the cornea. As a result, the cornea ⁇ It is considered to inhibit the conjunctival damage treatment effect and dry eye improvement.
- a highly hydrophilic substance such as sorbic acid or a salt thereof does not affect the state of the micelle surface, and therefore does not inhibit the absorption promotion effect of vitamin A.
- the said component is a part of antiseptic
- the antiseptic power at the time of making a preservative non-combination is good to mix
- blend 1 type or more from sodium edetate, boric acid, and trometamol Preferably it combines 2 or more types.
- it when it is set as a unit dose container and a container with a filter, it can be set as preservative-free.
- the isotonic agent examples include sodium chloride and potassium chloride.
- the content of the isotonizing agent with respect to the total amount of the ophthalmic composition is, for example, 0.001 to 5 W / V%, preferably 0.01 to 3 W / V%, more preferably 0.1 to 2 W / V%.
- the stabilizer examples include sodium edetate, cyclodextrin, sulfite, dibutylhydroxytoluene and the like.
- the content of the stabilizer relative to the total amount of the ophthalmic composition is, for example, 0.001 to 5 W / V%, preferably 0.01 to 3 W / V%, more preferably 0.1 to 2 W / V%. .
- Examples of the refreshing agent include menthol, camphor, borneol, geraniol, linalool, cineole and the like.
- the content of the refreshing agent relative to the total amount of the ophthalmic composition is preferably 0.0001 to 5 W / V%, more preferably 0.001 to 2 W / V%, and more preferably 0.005 to 1 W / V% as the total amount of the compound. Is more preferable, and 0.007 to 0.8 W / V% is particularly preferable.
- drugs pharmaceutical active ingredients
- decongestants eg, naphazoline hydrochloride, tetrahydrozoline hydrochloride, phenylephrine hydrochloride, epinephrine, ephedrine hydrochloride, dl-methylephedrine hydrochloride, tetrahydrozoline nitrate, naphazoline nitrate
- anti-inflammatory / astringent agents For example, neostigmine methyl sulfate, ⁇ -aminocaproic acid, allantoin, berberine chloride, zinc sulfate, zinc lactate, lysozyme chloride, dipotassium glycyrrhizinate, ammonium glycyrrhizinate, glycyrrhetinic acid, methyl salicylate, tranexamic acid, sodium azulene sulfonate) , Antihistamine
- the content of these components is appropriately selected according to the type of preparation, the type of drug, etc., and the content of various components is known in the art. For example, it can be appropriately selected from the range of 0.0001 to 30 W / V%, preferably 0.001 to 10 W / V% with respect to the total amount of the ophthalmic composition. More specifically, the content of each component with respect to the total amount of the ophthalmic composition is as follows.
- a decongestant for example, it is 0.0001 to 0.5 W / V%, preferably 0.0005 to 0.3 W / V%, more preferably 0.001 to 0.1 W / V%.
- a flame retardant / astringent it is, for example, 0.0001 to 10 W / V%, preferably 0.0001 to 5 W / V%.
- an antihistamine for example, it is 0.0001 to 10 W / V%, preferably 0.001 to 5 W / V%.
- water-soluble vitamins for example, 0.0001 to 1 W / V%, preferably 0.0001 to 0.5 W / V%.
- an amino acid for example, it is 0.0001 to 10 W / V%, preferably 0.001 to 3 W / V%.
- sulfa drugs and fungicides for example, it is 0.00001 to 10 W / V%, preferably 0.0001 to 10 W / V%.
- an antiallergic agent for example, 0.0001 to 10 W / V%, preferably 0.001 to 5 W / V%.
- a local anesthetic, mydriatic, or a cataract therapeutic agent for example, it is 0.001 to 1 W / V%, preferably 0.005 to 1 W / V%.
- the ophthalmic composition of the present invention may be used as it is, or may be prepared as a suspension or gel.
- eye drops for example, general eye drops, contact lens eye drops, etc.
- eye wash generally eye wash, eye wash used after removing contact lens
- contact etc.
- a lens mounting liquid, a contact lens removing liquid, and the like are listed.
- the ophthalmic composition of the present invention is liquid, and in the case of eye drops, the viscosity is preferably 1 to 100 mPa ⁇ s, more preferably 1 to 50 mPa ⁇ s, still more preferably 1 to 30 mPa ⁇ s.
- the viscosity is measured at 20 ° C. using an E-type viscometer (VISCONIC ELD-R, Tokyo Keiki Co., Ltd.).
- the preparation method of the ophthalmic composition of the present invention is not particularly limited.
- vitamin A is solubilized in sterilized purified water from polyoxyethylene polyoxypropylene glycol, and then trometamol, each formulation It can be obtained by adjusting the pH by adding ingredients. Thereafter, it can be aseptically filled into a suitable container such as a container made of polyethylene terephthalate.
- vitamin A can be stabilized by blending polyoxyethylene polyoxypropylene glycol and trometamol even when blended with vitamin A 50,000 units / 100 mL or more.
- the method for stabilizing vitamin A comprises an ophthalmic composition containing 50,000 units / 100 mL or more of vitamin A, polyoxyethylene polyoxypropylene glycol of 0.4 W / V% or more, (C) trometamol, In which Vitamin A is stabilized, and suitable components, contents, and the like are the same as those in the ophthalmic composition.
- the present invention is for an ophthalmic composition containing 50,000 units / 100 mL or more of vitamin A and provides the vitamin A stabilizer comprising polyoxyethylene polyoxypropylene glycol and trometamol. it can.
- polyoxyethylene polyoxypropylene glycol is blended in an amount of 0.4 W / V% or more into an ophthalmic composition containing 50,000 units / 100 mL or more of vitamin A.
- the present invention is suitable as an ophthalmic composition for treating corneal damage and a dry eye treatment agent, which are more effective when blended with vitamin A at a high concentration.
- Dry eye refers to a state in which the keratoconjunctiva on the surface of the eyeball is damaged due to qualitative or quantitative abnormality of tears.
- Tear fluid consists of three layers: an oil layer, an aqueous layer, and a mucin layer. When the qualitative and quantitative balance of this three-layer structure is destroyed, the tear fluid becomes unstable, the cornea is damaged, and dry eye Is triggered. In dry eye treatment, it is important to restore the three-layer structure of the tear oil layer, water layer, and mucin layer, and to treat corneal disorders.
- the ophthalmic composition of the present invention is a contact lens eye drop, an eye wash used after removing the contact lens, a contact lens mounting solution, a contact lens removing solution, etc. It is suitable as.
- the effect can be further exerted by instilling 30 to 60 ⁇ L at a time, 3 to 6 times a day.
- Ophthalmic compositions (eye drops) having the compositions shown in Tables 1 to 7 were pre-dissolved at 85 ° C. with vitamin A, polyoxyethylene polyoxypropylene glycol, and, if necessary, an anti-oxidant. It was solubilized in sterilized purified water heated to ° C., and after cooling, a water-soluble blending component such as trometamol was added to adjust pH (20 ° C.) to 7.0 to obtain an ophthalmic composition. 15 mL of the obtained ophthalmic composition was filled in a 15 mL eye drop container (manufactured by polyethylene terephthalate). The ophthalmic compositions of the examples had sufficient antiseptic power.
- Retinol palmitate residual rate (%) Retinol palmitate content after storage / Retinol palmitate content immediately after production ⁇ 100
- ophthalmic composition having the composition shown in Table 8 was prepared according to Example 1, and the treatment effect and eye irritation for corneal / conjunctival damage were evaluated by the following methods, and used as an index for dry eye treatment. The results are shown in the table together with the results of Example 1.
- Model was made. Thereafter, the sample was instilled continuously for 11 days (6 times (100 ⁇ L / time) / day).
- fluorescein staining is periodically performed (2% fluorescein single eye drop of 50 ⁇ L), and the corneal / conjunctival damage treatment effect is improved to 15 points according to the Lemp criteria (the score immediately after heptanol treatment is 15 points) The score decreases as you go. The evaluation results on the fifth day are shown.
- Example 29 to 33 The ophthalmic compositions in Table 9 were prepared according to Example 1, and the retinol palmitate remaining rate, the corneal / conjunctival damage treatment effect, and the eye irritation were evaluated by the above methods. The results are also shown in the table.
- Polysorbate 80 Rheodor TW-0120V, JP, Kao Corporation Hypromellose: Metroz 65SH-4000, JP, Shin-Etsu Chemical Co., Ltd.
- Polyvinylpyrrolidone Kollidon 90F, JP, BASF
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Abstract
Description
[1].(A)ビタミンAを50,000単位/100mL以上と、(B)ポリオキシエチレンポリオキシプロピレングリコール0.4W/V%以上と、(C)トロメタモールとを含有する眼科用組成物。
[2].(A)成分の含有量が、100,000単位/100mL以上である[1]記載の眼科用組成物。
[3].(A)成分の含有量が、200,000単位/100mL以上である[1]記載の眼科用組成物。
[4].(A)成分の含有量が、300,000単位/100mL以上である[1]記載の眼科用組成物。
[5].さらに、(D)抗酸化剤を含有する[1]~[4]のいずれかに記載の眼科用組成物。
[6].(D)成分が、ビタミンE及び/又はジブチルヒドロキシトルエンである[5]記載の眼科用組成物。
[7].(A)成分が、レチノールパルミチン酸エステル、レチノール酢酸エステル又はレチノイン酸である[1]~[6]のいずれかに記載の眼科用組成物。
[8].(B):(C)で表される(B)成分と(C)成分との質量比が、1:30~30:1である[1]~[7]のいずれかに記載の眼科用組成物。
[9].ビタミンAを50,000単位/100mL以上含有する眼科用組成物に、ポリオキシエチレンポリオキシプロピレングリコール0.4W/V%以上と、(C)トロメタモールとを配合することを特徴とするビタミンAの安定化方法。
ビタミンAとしては、ビタミンAそれ自体の他に、ビタミンA油等のビタミンA含有混合物、ビタミンA脂肪酸エステル等のビタミンA誘導体等が挙げられる。具体的には、レチノールパルミチン酸エステル、レチノール酢酸エステル、レチノール、レチノイン酸、レチノイド等が挙げられる。中でも、レチノールパルミチン酸エステル、レチノール酢酸エステル、レチノイン酸が好ましい。レチノールパルミチン酸エステルは、通常100万~180万国際単位(以下、単位又はI.U.と略記する)のものが市販されており、具体的には、ロッシュ・ビタミン・ジャパン株式会社製「パルミチン酸レチノール」(170万I.U./g)等が挙げられる。
本発明において、(B)ポリオキシエチレンポリオキシプロピレングリコールを用いることで、ビタミンAを50,000単位/100mL以上含有する眼科用組成物であっても、その安定性を保つことができると共に、目に対する刺激性も少なく、角膜損傷治療及びドライアイ治療効果が向上する。これらの効果は、例えば点眼剤に良く使用されるソルビタン脂肪酸エステル、ポリオキシエチレン硬化ヒマシ油等の界面活性剤では不十分である。ポリオキシエチレンポリオキシプロピレングリコールは特に限定されるものではなく、医薬品添加物規格(薬添規)に記載されたものを用いることができる。エチレンオキシドの平均重合度は4~200が好ましく、20~200がより好ましく、プロピレンオキシドの平均重合度は5~100が好ましく、20~70がより好ましく、ブロック共重合体でもランダム重合体でもよい。
本発明の眼科用組成物には、ビタミンAの保存安定性向上の点から、トロメタモールを配合することが好ましい。トロメタモールにビタミンAの保存安定性向上効果があることは、本発明者の新知見である。このメカニズムは明らかではないが、例えば、以下のようにも考えられる。ポリオキシエチレンポリオキシプロピレングリコールは、ポリオキシエチレン(EO)鎖とポリオキシプロピレン(PO)鎖を持つ非イオン性界面活性剤である。EO鎖を外側、PO鎖を内側にしてビタミンAを包み込み、ミセルを形成する。トロメタモールが共存すると、トロメタモール中に存在する-NH2基が、EO鎖のエーテル結合と直接結合するため、ミセルの構造を強固にする。さらにトロメタモールは、ミセル外側のEO鎖と結合することにより、ミセル構造を強固にして自由度を低下させ、その結果、ミセル内部のPO鎖の分子運動性を低下させる。以上のことから、トロメタモールは、ビタミンAとポリオキシエチレンポリオキシプロピレングリコールとから形成されたミセルの安定化に寄与し、結果としてビタミンAの保存安定性にも寄与すると考えられる。
本発明の眼科用組成物には、ビタミンAの保存安定性向上の点から、抗酸化剤を配合することが好ましい。抗酸化剤としては、d-α-トコフェロール、d-β-トコフェロール、d-γ-トコフェロール、d-δ-トコフェロール、dl-α-トコフェロール、酢酸d-α-トコフェロール、酢酸dl-α-トコフェロール、酢酸dl-β-トコフェロール、酢酸dl-γ-トコフェロール、酢酸dl-δ-トコフェロール、ニコチン酸dl-α-トコフェロール等のビタミンE類、ジブチルヒドロキシトルエン、ブチルヒドロキシアニソール等の脂溶性抗酸化剤、ビタミンC、ヒドロキノン、システイン、グルタチオン等の水溶性抗酸化剤等が挙げられる。中でも、ビタミンE等の脂溶性抗酸化剤が好ましく、酢酸d-α-トコフェロール、ジブチルヒドロキシトルエンがより好ましく、酢酸d-α-トコフェロールがさらに好ましい。また、ビタミンE及びジブチルヒドロキシトルエンを併用することも好ましい。
消炎・収斂剤であれば、例えば、0.0001~10W/V%、好ましくは0.0001~5W/V%である。
抗ヒスタミン剤であれば、例えば、0.0001~10W/V%、好ましくは0.001~5W/V%である。
水溶性ビタミンであれば、例えば、0.0001~1W/V%、好ましくは0.0001~0.5W/V%である。
アミノ酸であれば、例えば、0.0001~10W/V%、好ましくは0.001~3W/V%である。
サルファ剤、殺菌剤であれば、例えば、0.00001~10W/V%、好ましくは0.0001~10W/V%である。
抗アレルギー剤であれば、例えば、0.0001~10W/V%、好ましくは0.001~5W/V%である。
局所麻酔剤、散瞳剤、白内障治療剤であれば、例えば、0.001~1W/V%、好ましくは0.005~1W/V%である。
表1~7に示す組成の眼科用組成物(点眼剤)を、ビタミンA、ポリオキシエチレンポリオキシプロピレングリコール、必要に応じて抗酸化剤を85℃で予備溶解し、その予備溶解物を85℃に加温した滅菌精製水に可溶化し、冷却後、トロメタモール等の水溶性配合成分を加え、pH(20℃)を7.0に調整して眼科用組成物を得た。得られた眼科用組成物15mLを、15mL用点眼容器(ポリエチエレンテレフタレート製)に充填した。実施例の眼科用組成物は十分な防腐力を有していた。
眼科用組成物中のレチノールパルミチン酸エステル含量を、製造直後及び40℃・75%RHで6ヶ月保存後(過酷試験)に測定した。測定は、高速液体クロマトグラフ法を用いて測定を行った。得られたレチノールパルミチン酸エステル含量から、下記式に基づき、レチノールパルミチン酸エステル残存率(%)を算出した。
レチノールパルミチン酸エステル残存率(%)=保存後のレチノールパルミチン酸エステル含量/製造直後のレチノールパルミチン酸エステル含量×100
表8に示す組成の眼科用組成物(点眼剤)を実施例1に準じて調製し、下記方法で角膜・結膜損傷治療効果及び眼刺激性を評価し、ドライアイ治療の指標とした。結果を実施例1の結果と共に表中に示す。
ヘプタノール処理ウサギ角膜・結膜上皮障害モデルを用いた角膜・結膜損傷治療効果試験
ウサギにヘプタノール処理(ヘプタノール/エタノール=8:2混液を片眼200μL滴下)行い、ウサギの角膜・結膜上皮に障害を与えたモデルを作製した。その後、試料を11日間(6回(100μL/回)/日)連続して点眼した。点眼期間中、定期的にフルオレセイン染色(2%フルオレセイン片眼50μL滴下)を行い、角膜・結膜損傷治療効果を、Lenp判定基準に従い、15点満点(ヘプタノール処理直後のスコアを15点とし、改善に向かうに従いスコアは減少する)で評価した。5日目の評価結果を示す。
ウサギに、50μL/回、5分間隔にて15回の超頻回点眼試験を実施した。
15回点眼後、フルオレセイン染色(2%フルオレセイン片眼50μL滴下)を行い、角膜損傷範囲を下記基準により評価した。
評点4:角膜全体の面積の2/3以上に染色を認める
評点3:角膜全体の面積の1/3以上2/3未満に染色を認める
評点2:角膜全体の面積の1/3未満に染色を認める
評点1:わずかに染色を認める
評点0:染色を認めない
表9の眼科用組成物を、実施例1に準じて調製し、上記方法でレチノールパルミチン酸エステル残存率、角膜・結膜損傷治療効果及び眼刺激性を評価した。結果を表中に併記する。
ポリオキシエチレン(200)ポリオキシプロピレン(70)グリコール:
ユニルーブ70DP-950B、薬添規、日油(株)又はLutrol F127,薬添規、BASF(株)
ポリオキシエチレン(160)ポリオキシプロピレン(30)グリコール:
プロノン#188P、薬添規、日油(株)
ポリオキシエチレン(54)ポリオキシプロピレン(39)グリコール:
プロノン#235P、薬添規、日油(株)
ポリオキシエチレン硬化ヒマシ油60:
HCO-60(医薬用)、薬添規、日光ケミカルズ(株)
ポリソルベート80:
レオドール TW-0120V、日局、花王(株)
ヒプロメロース:
メトローズ65SH-4000、日局、信越化学工業(株)
ポリビニルピロリドン:
コリドン90F、日局、BASF
Claims (9)
- (A)ビタミンAを50,000単位/100mL以上と、(B)ポリオキシエチレンポリオキシプロピレングリコール0.4W/V%以上と、(C)トロメタモールとを含有する眼科用組成物。
- (A)成分の含有量が、100,000単位/100mL以上である請求項1記載の眼科用組成物。
- (A)成分の含有量が、200,000単位/100mL以上である請求項1記載の眼科用組成物。
- (A)成分の含有量が、300,000単位/100mL以上である請求項1記載の眼科用組成物。
- さらに、(D)抗酸化剤を含有する請求項1~4のいずれか1項記載の眼科用組成物。
- (D)成分が、ビタミンE及び/又はジブチルヒドロキシトルエンである請求項5記載の眼科用組成物。
- (A)成分が、レチノールパルミチン酸エステル、レチノール酢酸エステル又はレチノイン酸である請求項1~6のいずれか1項記載の眼科用組成物。
- (B):(C)で表される(B)成分と(C)成分との質量比が、1:30~30:1である請求項1~7のいずれか1項記載の眼科用組成物。
- ビタミンAを50,000単位/100mL以上含有する眼科用組成物に、ポリオキシエチレンポリオキシプロピレングリコール0.4W/V%以上と、(C)トロメタモールとを配合することを特徴とするビタミンAの安定化方法。
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| JP5673531B2 (ja) * | 2009-06-30 | 2015-02-18 | ライオン株式会社 | 眼科用組成物 |
| WO2013129322A1 (ja) * | 2012-02-27 | 2013-09-06 | ロート製薬株式会社 | 眼科用組成物 |
| JP5345746B1 (ja) * | 2012-02-27 | 2013-11-20 | ロート製薬株式会社 | 眼科用組成物 |
| JP2015101582A (ja) * | 2013-11-28 | 2015-06-04 | ライオン株式会社 | 眼科用組成物 |
| JP2021100918A (ja) * | 2019-12-24 | 2021-07-08 | ライオン株式会社 | 液体組成物、液体組成物の製造方法及び安定化方法 |
| JP7516756B2 (ja) | 2019-12-24 | 2024-07-17 | ライオン株式会社 | 液体組成物、液体組成物の製造方法及び安定化方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120135011A (ko) | 2012-12-12 |
| JP5549669B2 (ja) | 2014-07-16 |
| US20120095097A1 (en) | 2012-04-19 |
| CN102802619A (zh) | 2012-11-28 |
| US9012503B2 (en) | 2015-04-21 |
| KR101702157B1 (ko) | 2017-02-13 |
| JPWO2010150378A1 (ja) | 2012-12-06 |
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