WO2019230971A1 - ジブチルヒドロキシトルエンの含量低下が抑制された眼科用液剤 - Google Patents
ジブチルヒドロキシトルエンの含量低下が抑制された眼科用液剤 Download PDFInfo
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- ophthalmic solution
- dibutylhydroxytoluene
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- xanthan gum
- solution according
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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
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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
- A61K47/14—Esters of carboxylic acids, e.g. fatty acid monoglycerides, medium-chain triglycerides, parabens or PEG fatty acid esters
-
- 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
- A61K47/26—Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
-
- 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
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
-
- 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
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/42—Proteins; Polypeptides; Degradation products thereof; Derivatives thereof, e.g. albumin, gelatin or zein
-
- 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
- A61K47/44—Oils, fats or waxes according to two or more groups of A61K47/02-A61K47/42; Natural or modified natural oils, fats or waxes, e.g. castor oil, polyethoxylated castor oil, montan wax, lignite, shellac, rosin, beeswax or lanolin
-
- 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
-
- 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
- A61K9/10—Dispersions; Emulsions
-
- 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
Definitions
- the present invention relates to an ophthalmic solution containing a thickener and dibutylhydroxytoluene, in which a decrease in the content of dibutylhydroxytoluene (BHT) in the ophthalmic solution is suppressed.
- BHT dibutylhydroxytoluene
- Dibutylhydroxytoluene is known as a representative compound of a fat-soluble antioxidant, and is blended in an ophthalmic aqueous solution such as eye drops for the purpose of stabilizing an active ingredient (Patent Document 1: JP-A-07-304670).
- polysaccharides such as xanthan gum can increase viscosity by mixing with water and are used as thickeners.
- Xanthan gum is used in food and cosmetics, and its safety has been confirmed.
- natural polymers such as xanthan gum are blended in the composition as a thickening stabilizer, and these compositions are mainly intended to stabilize active ingredients (patents) Document 2: JP 2008-195714).
- Such a pharmaceutical composition is formulated into various preparations, but is formulated into a jelly or a liquid using high viscosity.
- Patent Document 3 US / 2010/0150971
- a dosage form for an ophthalmic liquid is performed. It wasn't.
- An object of the present invention is to develop an ophthalmic solution in which a decrease in dibutylhydroxytoluene content is suppressed.
- the present inventors diligently studied to obtain an ophthalmic solution in which a decrease in the content of dibutylhydroxytoluene is suppressed.
- a thickener selected from the group consisting of xanthan gum, gelatin, and carrageenan
- dibutyl The present inventors have found that a reduction in the content of hydroxytoluene can be achieved, leading to the present invention.
- the present invention relates to the following inventions: [1] An ophthalmic solution containing (A) dibutylhydroxytoluene and (B) one or more thickeners selected from the group consisting of xanthan gum, gelatin, and carrageenan. [2] The ophthalmic solution according to item 1, further comprising (C) a nonionic surfactant. [3] In item 2, the (C) nonionic surfactant is one or more surfactants selected from the group consisting of polysorbate 80, polyoxyethylene hydrogenated castor oil 60, and polyethylene glycol monostearate. The ophthalmic solution as described.
- the ophthalmic solution according to any one of items 1 to 12, A container body part for storing the liquid agent, a pouring part having a pouring port for pouring the liquid agent accommodated in the container body part, and a lid part for closing the pouring port, An ophthalmic liquid product housed in a container in which at least one of the wall surface of the internal space of the pouring part and the wall surface facing the pouring port in the lid part is made of a resin containing polybutylene terephthalate.
- An ophthalmic solution containing dibutylhydroxytoluene comprising one or more thickeners selected from the group consisting of xanthan gum, gelatin, and carrageenan, and a method for suppressing a decrease in dibutylhydroxytoluene content .
- An ophthalmic solution containing dibutylhydroxytoluene and a thickener selected from the group consisting of xanthan gum, gelatin and carrageenan can suppress a decrease in the content of dibutylhydroxytoluene.
- the present invention relates to an ophthalmic solution containing (A) dibutylhydroxytoluene and (B) one or more thickeners selected from the group consisting of xanthan gum, gelatin and carrageenan.
- the ophthalmic liquid preparation may be any preparation as long as it is a preparation administered to the eye, and examples thereof include eye drops and eye wash.
- an ophthalmic solution it is preferable that all components contained in the preparation are dissolved, and an aqueous solution is preferable.
- the ophthalmic solution can be prepared at any pH acceptable from the viewpoint of achieving the stability of the components contained in the solution, and can be prepared in the range of pH 3 to 9, for example.
- the upper limit is preferably pH 8.5 or less, more preferably pH 8 or less, while the lower limit is preferably pH 4 or more, more preferably pH 5 or more, and even more preferably pH 6 This can be done.
- a buffer may be used in order to bring the pH of the solution into the above range.
- (A) Dibutylhydroxytoluene (BHT) is also called 2,6-di-tert-butyl-4-methylphenol.
- Dibutylhydroxytoluene is blended in an ophthalmic solution as a compound that stabilizes an active ingredient, and its content can be arbitrarily selected according to the preparation. From the viewpoint of blending as an ophthalmic solution, it can be blended in the range of 0.00001 to 2.0 w / v%.
- the content of (A) dibutylhydroxytoluene is preferably 0.01 w / v% or less, more preferably 0.005 w / v% or less.
- the content of (A) dibutylhydroxytoluene is preferably 0.0005 w / v% or more, more preferably 0.0025 w / v% or more.
- Dibutylhydroxytoluene (BHT) is known as a fat-soluble antioxidant and is known to have higher antioxidant power than other fat-soluble antioxidants such as tocopherol and butylhydroxyanisole. It has been. In other words, dibutylhydroxytoluene is highly reactive and its content decreases due to spontaneous decomposition in the preparation. Further, as a container for storing an ophthalmic solution, a container having an extraction port (nozzle) is generally used as a container having an extraction port (nozzle) is generally used as a container having an extraction port (nozzle) is generally used. However, adsorption and volatilization of dibutylhydroxytoluene occur depending on the material and shape of the container and the extraction port.
- Adsorption and volatilization as well as spontaneous decomposition are considered to contribute to a decrease in dibutylhydroxytoluene content.
- Dibutylhydroxytoluene is generally considered to have a high adsorptivity in plastic containers while it has a low adsorptivity to glass.
- the material of the nozzle is considered to be involved in volatilization of dibutylhydroxytoluene.
- Thickeners include xanthan gum, gelatin, and carrageenan. These substances may be blended alone or in combination.
- the concentration of the thickener can be arbitrarily selected within a range that can suppress a decrease in the content of dibutylhydroxytoluene. From the viewpoint of blending as an ophthalmic solution, it can be blended in the range of 0.005 to 1.0 w / v%. On the other hand, from the viewpoint of the feeling of use of the ophthalmic solution, the thickener is preferably 0.6 w / v% or less, more preferably 0.3% w / v% or less.
- the thickener is preferably 0.05 w / v% or more, more preferably 0.1 w / v% or more.
- the lower limit of the concentration of the thickener can be changed according to the container to be used. When a PET container equipped with a PE nozzle or a PBT nozzle is used, the lower limit value is preferably 0.05 w / v% or more.
- the viscosity of the solution increases.
- the viscosity of the liquid is measured with a 2.1.3 conical-plate rotational viscometer (cone plate viscometer) of the 17th revised Japanese Pharmacopoeia General Test Method Viscosity Measurement Method Second Method Rotational Viscometer Method be able to.
- the viscosity of the liquid agent may vary depending on the dissolution conditions of the thickener, but when measured under the conditions of a measurement temperature of 20 ° C.
- the viscosity of the ophthalmic solution is usually 2 to 100 mPa ⁇ s.
- the lower limit of the viscosity range is 2 mPa ⁇ s, preferably 3 mPa ⁇ s, more preferably 10 mPa ⁇ s, still more preferably 33 mPa. It can be set as s.
- the upper limit of the viscosity range is 100 mPa ⁇ s, preferably 80 mPa ⁇ s, more preferably 60 mPa ⁇ s, even more preferably 50 mPa ⁇ s, and particularly preferably 41 mPa ⁇ s.
- a numerical range can be determined by arbitrarily selecting a lower limit value and an upper limit value.
- the viscosity can be 30 to 50 mPa ⁇ s, particularly 33 to 41 mPa ⁇ s.
- a thickener other than the thickener of the present invention a thickener or a thickener, such as sodium chondroitin sulfate, can be added.
- the content / mass ratio of (A) dibutylhydroxytoluene (BHT) and (B) thickener may be any ratio as long as the decrease in BHT content can be suppressed, and can be arbitrarily set by those skilled in the art. .
- 0.00001 to 400 can be used as (A) dibutylhydroxytoluene (BHT) / (B) thickener, and 0.001 to 10 is preferable from the viewpoint of suppressing a decrease in BHT content.
- 1/60 is more preferable from a viewpoint of suppressing the content fall of BHT, More preferably, it is 1/30.
- the upper limit of the content mass ratio is preferably 1 and more preferably 1/10 from the viewpoint of suppressing a decrease in the BHT content.
- Xanthan gum is a polysaccharide mainly composed of glucose, mannose, and glucuronic acid, and is produced by fermenting starch with bacteria (such as Xanthomonas campestris).
- Xanthan gum varies depending on the product, has a molecular weight of 2 million to 50 million Da, and when dissolved in water, imparts properties such as thickening, emulsification / suspension stability, and pseudoplasticity.
- the xanthan gum may be a salt with an inorganic base depending on the purification method, and may include a potassium salt, a sodium salt, a magnesium salt, and / or a calcium salt. Since xanthan gum has pseudoplasticity, it is preferable in terms of feeling after use when it is added to an ophthalmic solution.
- Gelatin can be purified by heating and extracting crude collagen obtained by treating animal bones, skin, ligaments, or tendons with acid or alkali, and is used as a thickener.
- Carrageenan is a polysaccharide obtained by extraction from red algae such as Sugiori, and is mainly composed of D-galactose and sulfuric acid. Carrageenan is obtained by extracting red algae with dilute alkaline hot water or alcohol. Carrageenans are called ⁇ , ⁇ , and ⁇ carrageenans depending on the type of red algae used as a raw material. In the present invention, it is preferable to use ⁇ carrageenan because it does not gel and has only a thickening action.
- Dibutylhydroxytoluene has low water solubility because it is fat-soluble.
- the nonionic surfactant can be blended in the range of 0.001 to 5 w / v% from the viewpoint of blending as an ophthalmic solution.
- the upper limit of the content of the (C) nonionic surfactant is preferably 1 w / v% or less, more preferably 0.5 w /
- the lower limit is preferably 0.01 w / v% or more, and more preferably 0.1 w / v% or more.
- the nonionic surfactant can be arbitrarily selected as long as it does not cause a decrease in the content of dibutylhydroxytoluene.
- polysorbate 80 polyoxyethylene hydrogenated castor oil 60, polyethylene glycol monostearate ( 40E.O.) or the like can be used.
- the ophthalmic solution of the present invention may contain any component used in ophthalmic solutions in addition to (A) dibutylhydroxytoluene, (B) thickener, and (C) nonionic surfactant.
- Optional components used in ophthalmic solutions are active ingredients, aqueous bases, buffers, isotonic agents, solubilizers, thickeners, thickeners, cooling agents, pH adjusters, stabilizers , Antiseptics, chelating agents, and the like, but are not intended to be limited to these.
- any ingredient that can use dibutylhydroxytoluene as a stabilizer can be blended.
- active ingredients that can be incorporated include pranoprofen, apigenin, minoxidil, carpronium chloride, L-ascorbic acid-2-O-maleic acid- ⁇ -tocopherol ester or a salt thereof, sucralose, flavin adenine dinucleotide (FAD), pyridoxine Vitamin A and the like, but are not intended to be limited to these.
- the container for storing the ophthalmic solution of the present invention includes a container main body that stores the liquid, a pouring part that includes a spout for pouring out the liquid stored in the container main body, and a lid that blocks the pouring part. It consists of.
- the dispensing part has a through hole to form an extraction port, and the liquid agent inside the container is poured out of the container through the through hole.
- the extraction unit has a nozzle shape, and the liquid agent does not leak even when the container is inverted, but when the pressure is applied to the container in the inverted state, the liquid agent flows out from the through hole and falls as droplets.
- the lid part can cover and cover the through-hole of the extraction part, thereby suppressing the leakage and volatilization of the liquid agent and the entry of substances and bacteria from the outside.
- the dispensing portion may be integrally formed of the same material as that of the main body portion, but is usually formed of a material different from that of the main body portion and may be attached to the container main body portion.
- the lid portion may be generally formed of the same material as the extraction portion, and may include a lid outline formed of a different material for ease of handling.
- the container in which the ophthalmic solution is accommodated may be composed of a resin containing polyethylene terephthalate.
- At least one of the wall surface of the internal space of the extraction unit and the wall surface facing the spout in the lid portion, or both are made of a resin containing polybutylene terephthalate. Preferably it is.
- the present invention relates to a method for suppressing a decrease in the content of dibutylhydroxytoluene in an ophthalmic solution containing dibutylhydroxytoluene.
- the method of the present invention comprises formulating one or more thickeners selected from the group consisting of xanthan gum, gelatin and carrageenan.
- the BHT content lowering suppression method of the present invention further includes blending a surfactant.
- a thickener suppresses adsorption
- the concentration used in the ophthalmic solution used in the present specification is appropriately used. be able to.
- the unit “w / v%” is a mass to volume percentage and is synonymous with g / 100 ml.
- the density of the ophthalmic solution is normally synonymous with w / w% because it is not different from the density of water.
- about the prescription used in this specification about the prescription which tends to foam, it may prepare by w / w%.
- Test Example 1 Inhibition of BHT content reduction by xanthan gum in ophthalmic solutions containing dibutylhydroxytoluene (BHT) Dibutylhydroxytoluene (BHT) (manufactured by Wako Pure Chemical Industries, Ltd.), polysorbate 80 (Nikko Stock) BHT-containing solution was prepared by dissolving. Separately, borax and xanthan gum (XA) (Echo Gum T, manufactured by DSP Gokyo Food & Chemical Co., Ltd.) were dissolved in purified water at a high temperature, cooled and then added with boric acid to prepare a xanthan gum solution or borax.
- BHT dibutylhydroxytoluene
- BHT Dibutylhydroxytoluene
- polysorbate 80 Nikko Stock
- hypromellose HPMC
- 65SH4000 manufactured by Shin-Etsu Chemical Co., Ltd.
- boric acid was added to dissolve the hypromellose solution, boric acid and borax.
- boric acid was used as a base solution.
- the density of all the liquid agents is about 1 g / cm 3 .
- BHT-containing solutions were added to the xanthan gum solution, the hypromellose solution and the base solution so as to have respective specified concentrations, and the pH was adjusted to obtain the test solutions of Examples 1 to 3 and Comparative Examples 1 to 6.
- Each of these test solutions was filled into a glass ampule to prepare a test specimen.
- Each test specimen was stored at 60 ° C. for 2 weeks, and then the BHT content was measured using HPLC.
- the ratio of the measurement result of each test specimen to the content of the 60 ° C. stored product with respect to the BHT content of the 4 ° C. stored product is shown as the residual rate (%).
- the results are shown in Table 2 below.
- hipmelose did not have a BHT content lowering suppression effect, while xanthan gum showed a very high BHT content lowering suppression effect.
- Test Example 2 Preparation of each test solution shown in Table 3 according to the preparation method of the content reduction inhibitory effect [Test Example 1] by the concentration of dibutylhydroxytoluene in an ophthalmic solution containing dibutylhydroxytoluene (BHT)
- BHT dibutylhydroxytoluene
- Test Example 3 Preparation and filling of each test solution shown in Table 5 in accordance with the preparation method of BHT content reduction suppression effect [Test Example 1] by the concentration of xanthan gum in an ophthalmic solution containing dibutylhydroxytoluene (BHT) The test specimen was used.
- each test specimen was stored at 60 ° C. for 2 weeks and 4 weeks, and then each BHT content was measured using HPLC.
- the ratio of the measurement result of each test specimen to the content of the 60 ° C. stored product with respect to the BHT content of the 4 ° C. stored product is shown as the residual rate (%).
- xanthan gum In a liquid containing 0.005% BHT, xanthan gum exhibited an effect of suppressing a decrease in the content of BHT at 0.05% (w / v) or more, and this effect also increased depending on the concentration. Suppression of BHT content reduction was observed when xanthan gum was added in an amount 10 times or more that of BHT.
- Test Example 4 According to the preparation method of the BHT content reduction inhibitory effect [Test Example 1] depending on the type of thickener in the ophthalmic solution containing BHT, each test solution shown in Table 7 was prepared, did. Test specimens were filled into glass ampoules. Gelatin was manufactured by Nacalai Tesque, sodium alginate was manufactured by Funakoshi, carrageenan was manufactured by Tokyo Chemical Industry Co., and gellan gum was manufactured by Kanto Chemical Co., Ltd.
- Reference Example 1 could not be measured because the sample for quantification was gelled.
- Each test specimen was stored at 60 ° C. for 2 weeks and 4 weeks, and then each BHT content was measured using HPLC. The ratio of the measurement result of each test specimen to the content of the 60 ° C. stored product with respect to the BHT content of the 4 ° C. stored product is shown as the residual rate (%).
- thickeners Although all thickeners have the effect of suppressing the decrease in BHT content, xanthan gum, gelatin and carrageenan were particularly effective in suppressing the decrease in BHT content.
- Test Example 5 Selection of a container enclosing an ophthalmic solution containing BHT and xanthan gum According to the preparation method of [Test Example 1], each test solution shown in Table 9 was prepared, and a glass and polyethylene (PE) nozzle was used. The test sample was filled with a polyethylene terephthalate (PET) container and a PET container having a polybutylene terephthalate (PBT) nozzle.
- PET polyethylene terephthalate
- PBT polybutylene terephthalate
- each test specimen was stored at 60 ° C. for 2 weeks and 4 weeks, and then each BHT content was measured using HPLC.
- the ratio of the measurement result of each test specimen to the content of the 60 ° C. stored product with respect to the BHT content of the 4 ° C. stored product is shown as the residual rate (%).
- the BHT stabilization effect was observed when the xanthan gum concentration was 0.1% (w / v) or more.
- the effect of suppressing the decrease in the BHT content was observed at 0.05% (w / v) or more.
- the effect of suppressing the decrease in the BHT content varies depending on the material of the nozzle, and the PET container equipped with the PBT nozzle was most excellent in terms of the stabilizing effect of BHT.
- Test Example 6 Selection of surfactant in ophthalmic solution containing BHT and xanthan gum According to the preparation method of [Test Example 1], polysorbate 80 of Example 2 was replaced with polyoxy, which is the same nonionic surfactant.
- Test solutions of Example 17 and Example 18 were prepared by replacing with ethylene hydrogenated castor oil 60 (abbreviated as HCO-60) or polyethylene glycol monostearate (40EO) (abbreviated as MYS-40). These were filled in a container in which a polybutylene terephthalate (PBT) nozzle was attached to a PET container to prepare a test specimen. Both HCO-60 and MYS-40 were manufactured by Nikko Chemicals. After each test specimen was stored at 60 ° C.
- the respective BHT content was measured using HPLC.
- the ratio of the measurement result of each test specimen to the content of the 60 ° C. stored product with respect to the BHT content of the 4 ° C. stored product is shown as the residual rate.
- the BHT remaining rate after storage at 60 ° C. for 4 weeks was 101.6% in Example 17 to which HCO-60 was added and 93.0% in Example 18 to which MYS-40 was added.
- HCO-60 or MYS-40 was used as the surfactant, the effect of stabilizing BHT by xanthan gum was observed in the same manner as when polysorbate 80 was used.
- Test Example 7 Examples 2, 11, 10 and 19 shown in Table 11 were prepared according to the method for preparing the viscosity [Test Example 1] in an ophthalmic solution containing BHT and xanthan gum.
- the rotational viscosity was measured with a cone-plate type rotational viscometer (cone plate type viscometer, TV-25 type, Toki Sangyo). However, the measurement temperature was 20 ° C. ( ⁇ 0.1 ° C.), the rotor used was (0.8 ° ⁇ R24), and the rotation speed was 10 rpm. Chondroitin sulfate sodium was manufactured by Maruha Nichiro Co., Ltd.
- Test Example 8 According to the preparation method of BHT content decrease inhibitory effect [Test Example 1] by xanthan gum in the presence of a drug , an active ingredient was further blended to prepare each test solution shown in Table 12 below. Planoprofen manufactured by API Corporation was used. The cromoglycate sodium used was made by Fermion. Each of the test solutions of Examples 20 and 21 and Comparative Example 26 was filled in a PET container with a polybutylene terephthalate (PBT) nozzle attached and stored at 4 ° C. and 60 ° C. for 4 weeks, respectively. The BHT content of was measured using HPLC. The ratio with respect to the content of 60 degreeC storage goods with respect to the BHT content of 4 degreeC storage goods was shown as residual rate (%). As a result, even when pranoprofen was contained as a drug, the stabilization effect of BHT could be confirmed by blending xanthan gum.
- PBT polybutylene terephthalate
- Test Example 9 An aqueous solution in which viscosity borax in an ophthalmic solution containing BHT and xanthan gum was dissolved was heated to about 80 ° C., and xanthan gum was added for 1 hour or hypromellose was dissolved for 2 hours. After cooling the liquid temperature to about 30 ° C., boric acid, polysorbate 80 and dibutylhydroxytoluene were added and dissolved, and then the pH was adjusted to obtain test solutions of Example 22 and Comparative Examples 27 and 28. Each of these test solutions was filled into a glass ampule to prepare a test specimen. Each test specimen was stored at 4 ° C. for 7 weeks, and then the rotational viscosity was measured according to the viscosity measurement method of Test Example 7. However, the rotation speed was 100 rpm and 10 rpm.
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Abstract
Description
[1] (A)ジブチルヒドロキシトルエンと、(B)キサンタンガム、ゼラチン及びカラギーナンからなる群より選択される1種以上の増粘剤、を含有する眼科用液剤。
[2] さらに(C)非イオン性界面活性剤を含有する項目1に記載の眼科用液剤。
[3] (C)非イオン性界面活性剤が、ポリソルベート80、ポリオキシエチレン硬化ヒマシ油60及びモノステアリン酸ポリエチレングリコールからなる群より選択される1種以上の界面活性剤である、項目2に記載の眼科用液剤。
[4] (B)増粘剤の濃度が0.03~0.3w/v%である項目1~3のいずれか一項に記載の眼科用液剤。
[5] (B)増粘剤の濃度が0.05~0.3w/v%である項目4に記載の眼科用液剤。
[6] (A)ジブチルヒドロキシトルエンの濃度が0.0005~0.005w/v%である項目1~5のいずれか一項に記載の眼科用液剤。
[7] (B)増粘剤がキサンタンガムである項目1~6のいずれか一項に記載の眼科用液剤。
[8] 回転数10rpmで測定した場合の粘度が2~100mPa・sである項目1~7のいずれか一項に記載の眼科用液剤。
[9] pHが6~8である項目1~8のいずれかに記載の眼科用液剤。
[10] 前記眼科用液剤が、水性液剤である、項目1~9のいずれか一項に記載の眼科用液剤。
[11] (A)0.0005~0.005w/v%のジブチルヒドロキシトルエンと、
(B)0.05~0.3w/v%のキサンタンガム、ゼラチン及びカラギーナンからなる群より選択される1種以上の増粘剤と、
(C)0.01~0.5w/v%のポリソルベート80、ポリオキシエチレン硬化ヒマシ油60及びモノステアリン酸ポリエチレングリコールからなる群より選択される1種以上の非イオン性界面活性剤を含有し、
pHが6~8である、
眼科用液剤。
[12] 回転数10rpmで測定した場合の粘度が2~100mPa・sである、項目11に記載の眼科用液剤。
[13] 項目1~12のいずれか一項に記載の眼科用液剤が、
液剤を収容する容器本体部と、前記容器本体部に収容された液剤を注出する注出口を有する注出部と、前記注出口をふさぐ蓋部とを備え、
前記注出部の内部空間の壁面、及び前記蓋部において前記注出口と対向する壁面の少なくとも一方が、ポリブチレンテレフタレートを含む樹脂で構成されている容器に収容された眼科用液剤製品。
[14] ジブチルヒドロキシトルエンを含有する眼科用液剤において、キサンタンガム、ゼラチン及びカラギーナンからなる群より選択される1種以上の増粘剤を配合することを特徴とする、ジブチルヒドロキシトルエンの含量低下抑制方法。
温湯下でジブチルヒドロキシトルエン(BHT)(和光純薬工業株式会社製)、ポリソルベート80(日油株式会社製)を溶解しBHT含有溶液を調製した。別にホウ砂及びキサンタンガム(XA)(エコーガムT、DSP五協フード&ケミカル株式会社製)を高温下で精製水に溶解させ、冷却したのちホウ酸を加えて調製したものをキサンタンガム溶液、またホウ砂及びヒプロメロース(HPMC)(65SH4000、信越化学工業株式会社製)を高温下で精製水に溶解させたのち冷却したのちホウ酸を加えて調製したものをヒプロメロース溶液、ホウ酸及びホウ砂を溶解させたものを基剤溶液とした。なお、すべての液剤の密度は約1g/cm3である。
[試験例1]の調製方法に準じて表3に示す各試験液を調製及び容器充填し、試験検体とした。
[試験例1]の調製方法に準じて表5に示す各試験液を調製及び容器充填し、試験検体とした。
[試験例1]の調製方法に準じて、表7に示す各試験液を調製し、試験検体とした。試験検体を、ガラスアンプルに充填した。ゼラチンはナカライテスク株式会社製、アルギン酸ナトリウムはフナコシ株式会社製、カラギーナンは東京化成工業株式会社製、ジェランガムは関東化学株式会社製のものを用いた。
[試験例1]の調製方法に準じて、表9に示す各試験液を調製し、ガラス、ポリエチレン(PE)ノズルを備えたポリエチレンテレフタレート(PET)容器、及びポリブチレンテレフタレート(PBT)ノズルを有するPET容器に充填し、試験検体とした。
[試験例1]の調製方法に準じて、実施例2のポリソルベート80を、同じ非イオン性界面活性剤であるポリオキシエチレン硬化ヒマシ油60(HCO-60と略す)またはモノステアリン酸ポリエチレングリコール(40E.O.)(MYS-40と略す)に置き換えて、実施例17および実施例18の試験液を調製した。これらをPET製容器にポリブチレンテレフタレート(PBT)製ノズルを取り付けた容器に充填し試験検体とした。HCO-60及びMYS-40はいずれも日光ケミカルズ株式会社製を用いた。各試験検体を60℃下で4週間保管したのち、それぞれのBHT含量をHPLCを用いて測定した。それぞれの試験検体の測定結果の4℃保管品のBHT含量に対する60℃保管品の含量に対する割合を残存率として示した。その結果、60℃4週間保存後のBHTの残存率は、HCO-60を添加した実施例17では101.6%、MYS-40を添加した実施例18では93.0%であり、非イオン性界面活性剤としてHCO-60やMYS-40を用いてもポリソルベート80を使用した時と同様に、キサンタンガムによるBHTの安定化効果が認められた。
[試験例1]の調製方法に準じて、表11に示す実施例2、11、10、及び19を調製し、日局 一般試験法 粘度測定法 第2法 回転粘度計法の2.1.3.円すい-平板形回転粘度計(コーンプレート型粘度計、TV-25形,東機産業)により回転粘度を測定した。ただし、測定温度は20°C(±0.1°C)、使用ローターは(0.8°×R24)、回転数は10rpmとした。コンドロイチン硫酸ナトリウムは、マルハニチロ株式会社製を用いた。
[試験例1]の調製方法に準じて、さらに活性成分を配合して、下記の表12に示す各試験液を調製した。プラノプロフェンは、株式会社エーピーアイコーポレーション製を用いた。クロモグリク酸ナトリウムは、フェルミオン社製を用いた。実施例20及び21、並びに比較例26の各試験液をPET製容器にポリブチレンテレフタレート(PBT)製ノズルを取り付けた容器に充填し、4℃下及び60℃下で4週間保管したのち、それぞれのBHT含量をHPLCを用いて測定した。4℃保管品のBHT含量に対する60℃保管品の含量に対する割合を残存率(%)として示した。その結果、薬物としてプラノプロフェンを含有させた場合でも、キサンタンガムの配合によりBHTの安定化効果が確認できた。
Claims (14)
- (A)ジブチルヒドロキシトルエンと、(B)キサンタンガム、ゼラチン及びカラギーナンからなる群より選択される1種以上の増粘剤、を含有する眼科用液剤。
- さらに(C)非イオン性界面活性剤を含有する請求項1に記載の眼科用液剤。
- (C)非イオン性界面活性剤が、ポリソルベート80、ポリオキシエチレン硬化ヒマシ油60及びモノステアリン酸ポリエチレングリコールからなる群より選択される1種以上の界面活性剤である、請求項2に記載の眼科用液剤。
- (B)増粘剤の濃度が0.03~0.3w/v%である請求項1~3のいずれか一項に記載の眼科用液剤。
- (B)増粘剤の濃度が0.05~0.3w/v%である請求項4に記載の眼科用液剤。
- (A)ジブチルヒドロキシトルエンの濃度が0.0005~0.005w/v%である請求項1~5のいずれか一項に記載の眼科用液剤。
- (B)増粘剤がキサンタンガムである請求項1~6のいずれか一項に記載の眼科用液剤。
- 回転数10rpmで測定した場合の粘度が2~100mPa・sである請求項1~7のいずれか一項に記載の眼科用液剤。
- pHが6~8である請求項1~8のいずれか一項に記載の眼科用液剤。
- 前記眼科用液剤が、水性液剤である、請求項1~9のいずれか一項に記載の眼科用液剤。
- (A)0.0005~0.005w/v%のジブチルヒドロキシトルエンと、
(B)0.05~0.3w/v%のキサンタンガム、ゼラチン及びカラギーナンからなる群より選択される1種以上の増粘剤と、
(C)0.01~0.5w/v%のポリソルベート80、ポリオキシエチレン硬化ヒマシ油60及びモノステアリン酸ポリエチレングリコールからなる群より選択される1種以上の非イオン性界面活性剤を含有し、
pHが6~8である、
眼科用液剤。 - 回転数10rpmで測定した場合の粘度が2~100mPa・sである、請求項11に記載の眼科用液剤。
- 請求項1~12のいずれか一項に記載の眼科用液剤が、
液剤を収容する容器本体部と、前記容器本体部に収容された液剤を注出する注出口を有する注出部と、前記注出口をふさぐ蓋部とを備え、
前記注出部の内部空間の壁面、及び前記蓋部において前記注出口と対向する壁面の少なくとも一方が、ポリブチレンテレフタレートを含む樹脂で構成されている容器に収容された眼科用液剤製品。 - ジブチルヒドロキシトルエンを含有する眼科用液剤において、キサンタンガム、ゼラチン及びカラギーナンからなる群より選択される1種以上の増粘剤を配合することを特徴とする、ジブチルヒドロキシトルエンの含量低下抑制方法。
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WO2013099861A1 (ja) * | 2011-12-27 | 2013-07-04 | 千寿製薬株式会社 | ジブチルヒドロキシトルエン含有製剤及びジブチルヒドロキシトルエンの安定化方法 |
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