WO2018043613A1 - 水性懸濁型製剤 - Google Patents
水性懸濁型製剤 Download PDFInfo
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- WO2018043613A1 WO2018043613A1 PCT/JP2017/031275 JP2017031275W WO2018043613A1 WO 2018043613 A1 WO2018043613 A1 WO 2018043613A1 JP 2017031275 W JP2017031275 W JP 2017031275W WO 2018043613 A1 WO2018043613 A1 WO 2018043613A1
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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
- A61K9/10—Dispersions; Emulsions
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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
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/496—Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
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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
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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
- A61K47/12—Carboxylic acids; Salts or anhydrides thereof
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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
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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
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/32—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers, poly(meth)acrylates, or polyvinyl pyrrolidone
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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
- A61K47/30—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
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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
- A61K47/30—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
- A61K47/38—Cellulose; Derivatives thereof
-
- 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
- A61K9/0053—Mouth and digestive tract, i.e. intraoral and peroral administration
Definitions
- the present invention relates to an aqueous suspension type preparation.
- (3aR, 4S, 7R, 7aS) -2- ⁇ (1R, 2R) -2- [4- (1,2-benzisothiazol-3-yl) piperazin-1-ylmethyl] cyclohexylmethyl ⁇ Hexahydro-4,7-methano-2H-isoindole-1,3-dione (hereinafter also referred to as “Compound 1”), a pharmaceutically acceptable acid addition salt thereof, or a mixture thereof (hereinafter referred to as “Compound 1 or a salt thereof) relates to an aqueous suspension-type preparation suspended in a solvent containing water.
- compound 1 is a useful compound as an atypical antipsychotic and is effective in the treatment of psychiatric disorders such as schizophrenia, bipolar disorder, and depression (For example, Patent Document 1 and Patent Document 2).
- oral solid preparations such as tablets and capsules are widely used as dosage forms that can be taken at home and are easy to take.
- symptoms vary widely from patient to patient.For example, medication to patients with acute schizophrenia, especially for patients who need to adjust their dosage, such as children and the elderly.
- oral solid preparations alone are not sufficient, such as medication, medication for patients who refuse to take medication, and medication for patients who have difficulty swallowing. For this reason, attempts have been made to use oral liquid preparations and injection dosage forms that are more suitable for administration to such patients. In order to produce an oral solution or injection, it is necessary to dissolve or suspend the drug in a solvent.
- Patent Document 4 discloses N- [4- [4- (1,2-benzisothiazol-3-yl) -1-piperazinyl]-(2R, 3R) -2,3-tetra, which is Compound 1. Methylene-butyl]-(1′R, 2 ′S, 3′R, 4 ′S) -2,3-bicyclo [2,2,1] heptanedicarboximide or a pharmaceutically acceptable acid addition salt thereof Disclosed compositions, and more particularly sustained release formulations for injection that maintain effective blood concentrations of the compounds are disclosed. However, Patent Document 4 does not disclose information related to usability such as sedimentation of a drug that is suspended particles and redispersibility after sedimentation.
- aqueous suspension preparation When the aqueous suspension preparation is left standing for a long period of time, the drug as suspended particles settles and solidifies. Therefore, an aqueous suspension type formulation in which the suspended particles are difficult to settle, or an aqueous suspension type formulation that easily returns to the original suspended state even when the suspended particles settle is desired.
- an aqueous suspension type preparation When using an aqueous suspension type preparation in an actual medical field, it is common for a patient or a medical worker to perform a shaking operation before medication. Therefore, if the redispersibility is poor, the dosage may vary depending on the person performing the shaking operation. Therefore, in developing an aqueous suspension type formulation, it is necessary to devise a formulation for improving usability such as redispersibility so as to reduce the variation in dosage for each user or each use.
- This invention is made
- An object of the present invention is to provide an aqueous suspension-type preparation with good redispersibility, which can easily return to the original dispersed state by a simple operation even if it settles.
- the present inventors have analyzed the particle image of the suspended particles using a flow-type particle image analyzer. Since it showed good redispersibility when it was below a certain value, it was found that there was a certain relationship between the quality of redispersibility and the particle image of suspended particles, and the present invention was completed. It came.
- the inventors of the present invention when analyzed using a flow-type particle image analyzer, the inventors of the present invention have an aqueous suspension type formulation that does not contain a thickener, and the circularity of the suspended particles is about 0.945 or less. In the case of an aqueous suspension-type preparation containing an agent, it was found that the redispersibility of the aqueous suspension-type preparation in which the circularity of the suspended particles is about 0.960 or less is good.
- the present invention is as follows.
- the buffering agent in the preparation is about 0.01 to about 15 mg per 1 mg of Compound 1, its pharmaceutically acceptable acid addition salt or a mixture thereof converted into the hydrochloride of Compound 1.
- item 14 contained in the ratio of these.
- the content of Compound 1, its pharmaceutically acceptable acid addition salt or a mixture thereof is about 10 to about 120 mg / mL in terms of Compound 1 hydrochloride.
- the content of the dispersant is from about 0.2 to about 20 mg / mL, and
- the content of the thickener is from about 2 to about 10 mg / mL.
- a buffer that is at least one selected from the group consisting of sodium salts, potassium salts and hydrates thereof, and (4) benzoic acid in a formulation having a content of about 0.1 to about 10 mg / mL
- An antiseptic that is at least one selected from acid derivatives.
- the content of Compound 1, its pharmaceutically acceptable acid addition salt or a mixture thereof is about 10 to about 120 mg / mL in terms of Compound 1 hydrochloride.
- the content of the dispersant in the preparation is about 0.2 to about 20 mg / mL,
- the buffering agent is about 0.125 to about 0 with respect to 1 mg of Compound 1, its pharmaceutically acceptable acid addition salt or a mixture thereof converted into the hydrochloride of Compound 1.
- a buffer which is at least one selected from the group consisting of sodium salts, potassium salts and hydrates thereof, (5) a preservative that is at least one selected from benzoic acid derivatives in a content of about 0.1 to about 10 mg / mL in the formulation, and (6) about 1 to about 500 mg / mL in the formulation
- the stabilizer which is at least 1 sort (s) selected from polyhydric alcohol of content.
- the content of Compound 1, its pharmaceutically acceptable acid addition salt or a mixture thereof is about 10 to about 120 mg / mL in terms of Compound 1 hydrochloride.
- the content of the dispersant in the preparation is about 0.2 to about 20 mg / mL,
- the content of the thickener in the preparation is about 2 to about 10 mg / mL,
- the buffering agent is about 0.125 to about 0 with respect to 1 mg of Compound 1, its pharmaceutically acceptable acid addition salt or a mixture thereof converted into the hydrochloride of Compound 1.
- the preservative content is from about 0.5 to about 2.5 mg / mL
- the stabilizer content is from about 50 to about 150 mg / mL.
- the buffer is selected from the group consisting of dipotassium phosphate, monopotassium phosphate, disodium phosphate, monosodium phosphate, potassium chloride, sodium chloride, sodium citrate and hydrates thereof. Item 35.
- Item 36 Item comprising at least one selected from the group consisting of dipotassium phosphate, monopotassium phosphate, disodium phosphate, monosodium phosphate, sodium chloride and hydrates thereof as a buffering agent. 35. The formulation according to 35.
- Item 55 can combine any or all of the features described in items 3 to 54. That is, a dependent claim for the term 1 and a dependent claim for the term 55 similar to the terms 3 to 54 are also included as aspects of the present invention.
- the present invention provides an aqueous suspension preparation excellent in redispersibility of Compound 1 or a salt thereof. That is, in the aqueous suspension preparation obtained by the present invention, the precipitate formed by standing for a long time easily returns to the original uniform suspension state. Administration with small variation is possible.
- the present invention discloses an aqueous suspension preparation suitable for oral administration or injection administration as a therapeutic agent for schizophrenia, etc., for Compound 1 or a salt thereof.
- the mixture thereof in “Compound 1, its pharmaceutically acceptable acid addition salt or a mixture thereof” means (1) Compound 1 (free form), Compound 1 (2) a pharmaceutically acceptable acid of two or more kinds of compound 1 (2) a mixture with an acid addition salt acceptable in (1 or 2 or more types of acid addition salts) Including mixtures of addition salts.
- oral solution means a solution to be administered orally
- injection means a preparation to be administered by injection into veins, muscles, subcutaneous, intracutaneous or the like.
- the “aqueous suspension type formulation” containing Compound 1 or a salt thereof as an active ingredient is a formulation in which water is the main solvent and Compound 1 or a salt thereof is dispersed in the solvent as suspended particles.
- the “aqueous suspension preparation” in the present invention may contain a polar solvent in an amount that does not adversely affect the feeling of taking (bitterness, astringency, astringency, etc.) in addition to water.
- the “polar solvent” means a solvent that has polarity and can be uniformly mixed with water.
- “compound 1 in the preparation, its pharmaceutically acceptable acid addition salt or a mixture thereof is diluted so that the content is 40 mg / mL (converted to the hydrochloride of compound 1)
- “Rsp value measured using pulsed NMR” means that the content of Compound 1, its pharmaceutically acceptable acid addition salt or a mixture thereof in the preparation is 40 mg / mL (converted to the hydrochloride of Compound 1)
- a preparation diluted with an “aqueous suspension preparation excluding suspended particles” until the concentration is 40 mg / mL (converted to the hydrochloride of Compound 1) is obtained using pulse NMR. It means the Rsp value when measured.
- the content of Compound 1, its pharmaceutically acceptable acid addition salt or a mixture thereof in the preparation is 40 mg / mL (converted to the hydrochloride of Compound 1), dilute the preparation. Rsp value when measured using pulsed NMR.
- the concentration is 40 mg / mL. It means the Rsp value when the preparation concentrated until it becomes (converted to the hydrochloride of compound 1) is measured using pulse NMR.
- “good redispersibility” of an aqueous suspension type formulation means that even if the suspended particles settle out by leaving the aqueous suspension type formulation for a long period of time, it can be easily recovered by a simple operation. Means the property of returning to a uniform suspension state.
- “simple operation” means, but is not limited to, for example, an inversion operation or a shaking operation of the present preparation contained in a storage container.
- the quality of redispersibility in the present invention is determined by, for example, filling an aqueous suspension preparation into a test tube, sealing it, and then standing still at 25 ° C or 40 ° C for several months. After forming the suspended particle precipitate by spontaneous sedimentation, the test tube is gently inverted over about 3 seconds to determine whether the precipitate is loosened and returns to the suspended state immediately after production. be able to. Specifically, it was judged that the redispersibility was remarkably good (A) when it was confirmed by visual observation that the precipitate was loosened in one reversal operation and returned to the suspended state immediately after production.
- circularity is one piece of shape information regarding suspended particles, and is an index representing the circularity of the particles. That is, the circularity shows a value of 1 or less, and the closer to 1, the closer the particle shape is to a circle. Moreover, in this invention, circularity shows the average value of circularity of each particle
- grain which exists in a suspended state. In general, the circularity is calculated from image data of particles. The circularity used in the present invention is measured using a flow type particle image analyzer: FPIA3000 (Sysmex Corporation), and can be calculated based on the following formula. Circularity (perimeter of circle equal to particle projection area) / (perimeter of particle projection image)
- the circularity is, for example, 5 mL of a solvent (purified water or neutral buffer) in which Compound 1 or a salt thereof does not dissolve in a 0.25 mL aqueous suspension preparation. It can be calculated by using a flow-type particle image analyzer as a measurement liquid, and measuring with a liquid obtained by adding. Further, the circularity can be measured by appropriately diluting depending on the concentration of the aqueous suspension preparation to be measured.
- a solvent purified water or neutral buffer
- the circularity can be measured by appropriately diluting depending on the concentration of the aqueous suspension preparation to be measured.
- median diameter is one of the representative values representing the particle size distribution of suspended particles of Compound 1 or a salt thereof contained in an aqueous suspension preparation, and means a median diameter based on volume.
- the median diameter is measured and calculated using a laser diffraction particle size measuring device, a dynamic light scattering particle size distribution measuring device, an image processing particle size distribution measuring device, or the like.
- the median diameter used in the present invention can be calculated from the particle size distribution measured using a laser diffraction particle size distribution analyzer: HELOS BR-MULTI (Sympatec).
- the median diameter is, for example, 40 mL of a solvent (purified water or neutral buffer) in which Compound 1 or a salt thereof is not dissolved in an aqueous suspension type formulation of 0.01 mL. It can be measured using a laser diffraction type particle size distribution measuring apparatus using a liquid obtained by adding as a measurement liquid.
- a laser diffraction type particle size distribution measuring apparatus using a liquid obtained by adding as a measurement liquid.
- the “sample: measured concentration” displayed at the time of measurement is 5 to 10%. It is preferable to adjust the dilution ratio of the measurement liquid.
- Rsp means the reciprocal of the transverse relaxation time of a proton whose movement is restricted by Compound 1 or a salt thereof existing in a suspension state in an aqueous suspension preparation. It is an indicator of the amount of protons with limited movement and the degree of proton limitation.
- Rsp used in the present invention is a value measured using pulsed NMR by adjusting the content of Compound 1 or a salt thereof in the preparation to 40 mg / mL (converted to the hydrochloride of Compound 1).
- Pulse NMR particle interface characteristic evaluation apparatus Measured using Acorn area (xigo), and can be calculated based on the following formula.
- the transverse relaxation time is measured using a pulse NMR particle interface characteristic apparatus, and the “suspended particles used for Rsp calculation” is measured.
- the “reciprocal transverse relaxation time” value of the excluded aqueous suspension formulation can be obtained.
- the value of “reciprocal transverse relaxation time of aqueous suspension formulation” is the pulse NMR particle interfacial characteristics using an aqueous suspension formulation in which inversion mixing is repeated until it becomes uniform visually. It is obtained by measuring the transverse relaxation time using an apparatus. Rsp of an aqueous suspension type formulation can be calculated by applying each lateral relaxation time value thus obtained to the above formula.
- Compound 1 or a salt thereof comprises (3aR, 4S, 7R, 7aS) -2- ⁇ (1R, 2R) -2- [4- (1,2-benzisothiazol-3-yl) piperazine -1-ylmethyl] cyclohexylmethyl ⁇ hexahydro-4,7-methano-2H-isoindole-1,3-dione, which is a compound represented by the following formula.
- Compound 1 or a salt thereof has a pharmacological action as an antipsychotic drug. More specifically, Compound 1 or a salt thereof and a pharmaceutical preparation containing them are useful as a therapeutic agent for psychiatric diseases such as schizophrenia, bipolar disorder and depression.
- Examples of the pharmaceutically acceptable acid addition salt of Compound 1 include organic acid addition salts and inorganic acid addition salts. Although not limited thereto, for example, organic acid addition salts include formate, acetate, lactate, adipate, citrate, tartrate, methanesulfonate, fumarate, maleate, and the like. Examples of the addition salt of inorganic acid include hydrochloride, sulfate, nitrate, phosphate and the like.
- the pharmaceutically acceptable acid addition salt of Compound 1 is preferably hydrochloride.
- Compound 1 and pharmaceutically acceptable acid addition salts thereof may be solvates, and may be either hydrates or non-hydrates.
- Compound 1 or a salt thereof can be produced, for example, by the method described in Patent Document 1 and Patent Document 2 or a method analogous thereto.
- the produced compound 1 or a salt thereof may be pulverized by a commonly used method, if necessary.
- the content of “Compound 1, a pharmaceutically acceptable acid addition salt thereof or a mixture thereof (Compound 1 or a salt thereof)” used in the aqueous suspension preparation of the present invention is appropriately changed depending on the amount of the drug solution. Is usually about 0.1 to about 400 mg / mL in terms of the hydrochloride salt of Compound 1 in the preparation.
- the content of “Compound 1 or a salt thereof” is preferably about 1 to about 300 mg / mL, more preferably about 5 to about 150 mg / mL, and more preferably in terms of the hydrochloride of Compound 1.
- converted to the hydrochloride of compound 1 means that equimolar amounts of compound 1, pharmaceutically acceptable acid addition salt of compound 1, hydrate or solvate thereof, or a mixture thereof. It is calculated by replacing with the weight of the hydrochloride of compound 1.
- the aqueous suspension preparation of the present invention may contain a dispersant as necessary.
- the dispersing agent is not particularly limited as long as it is used as a pharmaceutical additive in ordinary oral solutions or injections.
- cellulose derivatives such as cellulose, hypromellose, hydroxypropylcellulose, methylcellulose, ethylcellulose, carmellose sodium, etc.
- Alkyl alcohols such as polyvinyl alcohol; sucrose fatty acid esters such as sucrose myristic acid ester, sucrose lauric acid ester, sucrose stearic acid ester; polyglyceryl myristic acid ester, polyglycerin lauric acid ester, polyglycerin stearic acid ester, etc.
- Polyglycerol fatty acid ester of pyrrolidone derivatives such as polyvinylpyrrolidone; Poloxamer 188, HCO-60, polysorbate 80, polyoxyl stearate 40
- Nonionic surfactants such as sodium lauryl sulfate.
- Preferred examples of the dispersant include cellulose derivatives, sucrose fatty acid esters and alkyl alcohols, more preferred examples include cellulose derivatives and sucrose fatty acid esters, and further preferred examples include cellulose derivatives.
- dispersant examples include preferably methylcellulose, hypromellose, sucrose laurate and hydroxypropylcellulose, more preferably methylcellulose, hypromellose and hydroxypropylcellulose, and most preferably hypromellose.
- a dispersing agent can also be used 1 type or in mixture of 2 or more types.
- the content of the dispersant is not limited to these, but is preferably about 0.01 to about 40 mg / mL in the preparation. More specifically, the content when a cellulose derivative such as methylcellulose, hypromellose, and hydroxypropylcellulose or a sucrose fatty acid ester such as sucrose laurate is used as the dispersant is not limited to these. However, for example, in the preparation, it is preferably 0.1 to 30 mg / mL, more preferably about 0.1 to about 20 mg / mL, and further preferably about 0.2 to about 20 mg / mL. Even more preferably from about 0.2 to about 10 mg / mL.
- the content in the case of using an alkyl alcohol such as polyvinyl alcohol as a dispersant is not limited to these.
- it is preferably about 0.1 to 10 mg / mL in the preparation, and more Preferably, it is about 0.5 to 5 mg / mL.
- the content when a polyglycerin fatty acid ester, a pyrrolidone derivative, a nonionic surfactant, an ionic surfactant or the like is used as a dispersant is not limited to these. Is about 0.01 to about 0.5 mg / mL, more preferably about 0.01 to about 0.1 mg / mL.
- the aqueous suspension preparation of the present invention may contain a thickener as necessary.
- the thickener is not particularly limited as long as it can be used as a pharmaceutical additive in ordinary oral solutions or injections.
- Polysaccharides; proteins such as casein and gelatin; and acrylic acid polymers such as carboxyvinyl polymers are mentioned, More preferably, a polysaccharide is mentioned.
- thickeners include preferably xanthan gum, carrageenan, sodium alginate, pectin and guar gum, more preferably xanthan gum, guar gum, carrageenan and sodium alginate, more preferably xanthan gum, guar gum and sodium alginate. Even more preferred are xanthan gum and sodium alginate.
- a thickener can also be used 1 type or in mixture of 2 or more types.
- the content of the thickener is not limited to these, but is preferably about 0.5 to about 20 mg / mL, more preferably about 1 to about 15 mg / mL in the preparation, Preferably, it is about 2 to about 10 mg / mL.
- the aqueous suspension preparation of the present invention may contain a buffer as necessary.
- the buffer is not particularly limited as long as it is used as a pharmaceutical additive in ordinary oral solutions or injections, and examples thereof include sodium salts, potassium salts, hydrochlorides and hydrates thereof.
- sodium salts include sodium chloride, disodium phosphate, monosodium phosphate, sodium bicarbonate, sodium carbonate, sodium citrate, sodium tartrate, sodium malate, sodium acetate, sodium lactate, and hydrates thereof.
- the potassium salt include potassium chloride, dipotassium phosphate, monopotassium phosphate, potassium hydrogen carbonate, potassium carbonate, potassium citrate, and hydrates thereof.
- hydrochloride examples include glucosamine hydrochloride, guanidine hydrochloride, arginine hydrochloride, cysteine hydrochloride and hydrates thereof.
- the buffer preferably includes sodium salt, potassium salt and hydrates thereof, more preferably potassium salt and hydrates thereof.
- the buffer preferably include dipotassium phosphate, monopotassium phosphate, disodium phosphate, monosodium phosphate, potassium chloride, sodium chloride, sodium citrate and hydrates thereof, and more preferably Includes dipotassium phosphate, monopotassium phosphate, disodium phosphate, monosodium phosphate, sodium chloride and hydrates thereof, more preferably dipotassium phosphate, monosodium phosphate, sodium chloride and these. Of the hydrates.
- a buffering agent can also be used 1 type or in mixture of 2 or more types.
- Dipotassium phosphate is the same substance as dipotassium hydrogen phosphate, and monopotassium phosphate is the same substance as potassium dihydrogen phosphate.
- the content ratio of the buffering agent is not limited to these, but is preferably about 0. 1 mg with respect to 1 mg of compound 1 or a salt thereof (weight converted to the hydrochloride of compound 1) contained in the preparation.
- the amount is from 01 to about 15 mg, more preferably from about 0.05 to about 5 mg, still more preferably from about 0.125 to about 0.85 mg, and particularly preferably from about 0.2 to about 0.5 mg.
- the content of the buffering agent is less than 0.01 mg relative to 1 mg of Compound 1 or a salt thereof (weight converted to the hydrochloride of Compound 1) contained in the preparation, the compound 1 or a salt thereof into the solvent There is a possibility that the amount of dissolution increases, leading to a decrease in the stability and ingestibility of Compound 1 or a salt thereof.
- the content of the buffering agent exceeds 15 mg with respect to 1 mg of compound 1 or a salt thereof (weight converted to the hydrochloride of compound 1) contained in the preparation, other agents such as a dispersant may be added due to the salting-out effect. It is considered that the additive may precipitate and it may be difficult to maintain the suspended state.
- aqueous suspension preparation of the present invention it is preferable to use a mixture of polar solvent and water or water itself in such an amount that does not affect the feeling of dosing.
- water is more preferable.
- the polar solvent that may be contained in the aqueous suspension preparation of the present invention is not limited to these, but examples include alcohols, preferably polyhydric alcohols. Specific examples of the polar solvent preferably include propylene glycol, ethanol, glycerin and polyethylene glycol, more preferably propylene glycol. Moreover, the 1 type (s) or 2 or more types of polar solvent may be included.
- the content of the polar solvent in the aqueous suspension preparation of the present invention is not particularly limited as long as it does not affect the feeling of taking.
- the content of the polar solvent in the preparation is preferably about 50% (w / v) or less, more preferably about 30% (w / v) or less, and further preferably about 10% (w / v). It is as follows.
- the content ratio of water in the preparation is not particularly limited as long as additives other than Compound 1 or a salt thereof are dissolved and the whole preparation becomes clear.
- the content ratio of water in the preparation is preferably about 50% (w / v) or more, more preferably about 60% (w / v) or more, and further preferably about 70% (w / v) or more. It is.
- the aqueous suspension preparation of the present invention may contain a preservative as necessary.
- the preservative is not particularly limited as long as it can be used as a pharmaceutical additive in ordinary oral solutions or injections.
- Benzoic acid derivatives such as paraoxybenzoic acid, benzoic acid and sodium benzoate; having 1 to 4 carboxyl groups in the skeleton containing 3 or more carbon atoms such as sorbic acid, potassium sorbate, sodium edetate, citric acid, etc.
- Compound examples include alcohols such as glycerin, ethanol, 2-propanol, and propylene glycol.
- a benzoic acid derivative is preferable.
- preservatives include preferably methyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, butyl paraoxybenzoate and sodium benzoate, more preferably methyl paraoxybenzoate, propyl paraoxybenzoate and benzoate.
- Sodium acid benzoate more preferably methyl paraoxybenzoate and sodium benzoate, and most preferably methyl paraoxybenzoate.
- 1 type (s) or 2 or more types can also be mixed and used for a preservative.
- the content of the preservative is not limited thereto, but is preferably about 0.1 to about 10 mg / mL, more preferably about 0.2 to about 5 mg / mL in the preparation. More preferably, it is about 0.25 to about 3 mg / mL, and particularly preferably about 0.5 to about 2.5 mg / mL.
- the aqueous suspension preparation of the present invention may contain a stabilizer as necessary.
- the stabilizer is not particularly limited as long as it is used as a pharmaceutical additive in a normal oral solution or injection, and examples thereof include alcohol and oil.
- the alcohol include monohydric alcohols such as ethanol; polyhydric alcohols such as glycerin, propylene glycol, and polyethylene glycol; and sugar alcohols such as sorbitol, erythritol, and mannitol.
- the stabilizer is preferably a polyhydric alcohol.
- Specific examples of the stabilizer are preferably glycerin, polyethylene glycol, ethanol, sorbitol, erythritol and propylene glycol, more preferably glycerin, polyethylene glycol, ethanol and propylene glycol, and still more preferably propylene glycol. It is done.
- a stabilizer can also be used 1 type or in mixture of 2 or more types.
- the content of the stabilizer is not limited to these, but it is preferably about 1 to about 500 mg / mL in the preparation in consideration of the effect on dosing and irritation, and more preferably about It is 10 to about 400 mg / mL, more preferably about 30 to about 350 mg / mL, even more preferably about 50 to about 300 mg / mL, and particularly preferably about 50 to about 150 mg / mL.
- the amount of compound 1 or a salt thereof dissolved can be measured.
- the dissolved amount of Compound 1 or a salt thereof represents the concentration of Compound 1 or a salt thereof dissolved in an aqueous suspension type preparation.
- the dissolution amount of Compound 1 or a salt thereof is about 8 mg / mL or less.
- the amount of compound 1 or a salt thereof dissolved is preferably about 6 mg / mL or less, more preferably about 4 mg / mL or less, and still more preferably about 1 mg / mL or less.
- the pH (25 ° C.) of the aqueous suspension preparation of the present invention is preferably about 1.0 to about 10.0, more preferably about 2.0 to about 9.0, and further preferably about 3 0.0 to about 8.0.
- the aqueous suspension type preparation of the present invention includes ordinary oral solutions and injections as long as the effects of the present invention are not impaired. Can be used as long as it is used as a pharmaceutical additive. Examples of such additives include, but are not limited to, sweetening agents, coloring agents, and fragrances.
- the sweetening agent is not particularly limited as long as it can be used as a pharmaceutical additive in ordinary oral solutions or injections.
- sucralose, sucrose, liquid sugar, fructose, sorbitol, xylitol, erythritol, trehalose, maltitol And acesulfame potassium As the sweetening agent, sucralose, sorbitol and erythritol are preferable, sucralose and erythritol are more preferable, and sucralose is more preferable.
- a sweetener can also be used 1 type or in mixture of 2 or more types.
- the colorant is not particularly limited as long as it is used as a pharmaceutical additive in a normal oral solution or injection, and examples thereof include tar dye, yellow No. 5, caramel and the like. Moreover, a coloring agent can also be used 1 type or in mixture of 2 or more types.
- the fragrance is not particularly limited as long as it is used as a pharmaceutical additive in a normal oral solution or injection, and examples thereof include medical essence, lemon oil, orange oil, peach oil and the like. Moreover, a fragrance
- the circularity of the suspended particles is preferably about 0.960 or less.
- the circularity of the suspended particles when a thickener is included in the preparation is more preferably about 0.700 to about 0.960, and still more preferably about 0.800 to about 0.960.
- the circularity of the suspended particles is preferably about 0.945 or less.
- the degree of circularity of the suspended particles when a thickener is not included in the preparation is more preferably about 0.700 to about 0.945, and still more preferably about 0.800 to about 0.945.
- “when no thickener is contained in the preparation” means “when substantially no thickener is contained in the preparation”. “When the formulation does not substantially contain a thickener” means that the content of the thickener in the formulation is literally zero, and “a small amount of thickener that does not exert its effect as a thickener. It also includes the case where a viscous agent is present in the formulation. Examples of the effect as a thickener include a thickening effect (an effect of increasing viscosity), an effect of increasing stability, a protective colloid property (an effect of stably dispersing fine particles), and the like.
- the content of the thickener in the preparation in the case of “substantially does not contain the thickener” varies depending on the properties of the individual thickener and the added preparation itself, but is not limited to the following. For example, the case where content of the thickener in a formulation is less than about 0.1 mg / mL is mentioned.
- the content of the thickener in the preparation when “substantially does not contain the thickener” is preferably less than about 0.05 mg / mL, more preferably less than about 0.01 mg / mL It is.
- the aqueous suspension-type preparation of the present invention has “suspended particles” other than the suspended particles of “Compound 1, a pharmaceutically acceptable acid addition salt thereof or a mixture thereof” (Compound 1 or a salt thereof). It may contain suspended particles.
- the preparation (containing) is such that the content of suspended particles other than Compound 1 or a salt thereof does not affect the circularity of the preparation.
- a more preferred formulation is one that does not contain suspended particles other than Compound 1 or a salt thereof.
- the median diameter of the suspended particles of Compound 1 or a salt thereof is not limited to these, but is preferably about 0.1 to about 30 ⁇ m, more preferably about The thickness is 0.5 to about 20 ⁇ m, more preferably about 1 to about 10 ⁇ m.
- the suspended particles of Compound 1 or a salt thereof having a median diameter of about 0.1 to about 30 ⁇ m are not limited to these, but for example, Compound 1 or a salt thereof can be prepared using a jet mill, a hammer mill or the like. It can be obtained by dry grinding. It can also be obtained by adding compound 1 or a salt thereof to a solvent, followed by wet pulverization using a homomixer, a high-speed rotary disperser, a high-pressure homogenizer, a bead mill or the like. Furthermore, as a method other than pulverizing Compound 1 or a salt thereof, the compound 1 or a salt thereof can be obtained by performing a commonly used recrystallization operation.
- Compound 1 or a salt thereof used in the production of the aqueous suspension type preparation of the present invention is not limited to these, and for example, about 0.1 obtained by dry pulverization, wet pulverization, recrystallization operation, and the like.
- Compound 1 or a salt thereof having a median diameter of ⁇ about 30 ⁇ m can be used.
- wet grinding or the like is performed during the production process.
- suspended particles of Compound 1 or a salt thereof having a median diameter of about 0.1 to about 30 ⁇ m can be prepared.
- aqueous suspension type preparation of the present invention As a method for producing the aqueous suspension type preparation of the present invention, a usual method for producing an oral solution or an injectable drug can be used.
- the aqueous suspension type preparation of the present invention is not limited to these, but can be produced, for example, by a process including the following (1) to (3).
- (1) Additives other than Compound 1 or a salt thereof are added to a solvent and dissolved.
- dry pulverized compound 1 or a salt thereof is added and mixed.
- the aggregate of the compound 1 added in (2) or a salt thereof is loosened (wet pulverization) using a homomixer, a stirrer, a high-speed rotary disperser, or the like.
- the aqueous suspension type preparation of the present invention is not limited to these, but can also be produced, for example, by a process including the following (1) to (5).
- (1) Add compound 1 or a salt thereof, and additives other than the thickener to the solvent and dissolve.
- (2) To the solution prepared in (1) above, the dry pulverized compound 1 or a salt thereof is added and then mixed to prepare solution A.
- (3) If necessary, the aggregate of the compound 1 added in (2) or a salt thereof is loosened (wet pulverization) using a homomixer, a stirrer, a high-speed rotary disperser, or the like. By dispersing or the like, compound 1 or a salt thereof is uniformly suspended.
- aqueous suspension preparation of the present invention can be produced by mixing the A solution and the B solution prepared above in appropriate amounts.
- an additive when an additive is dissolved in a solvent, it can be dissolved using a heated solvent. Moreover, an additive can also melt
- the aqueous suspension preparation of the present invention is not particularly problematic even if bubbles are present in the preparation, but the production method can be devised so that bubbles do not exist.
- the manufacturing conditions such as the processing time, the processing strength, the liquid temperature of the processed product, and the pressure in the storage are appropriately adjusted.
- formula formulation of this invention in which air bubbles are not mixed visually can be manufactured.
- the air bubbles mixed from the aqueous suspension preparation of the present invention can be removed by providing a decompression step, a stirring step and the like.
- the storage container for the aqueous suspension preparation of the present invention is not particularly limited as long as it can be used for ordinary oral solutions or injectable pharmaceuticals.
- vials, ampoules, glass bottles, polyethylene bottles, aluminum Examples include a packaging container made of a multilayer film.
- the aqueous suspension preparation of the present invention is produced at an appropriate concentration according to factors such as the dosage, and can be administered after adjusting the dosage as necessary.
- the aqueous suspension preparation of the present invention has little influence on the motion state of the digestive tract and the environment in the digestive tract even when administered orally. Therefore, the aqueous suspension preparation of the present invention can also be used for emergency medication.
- aqueous suspension preparation of the present invention although not particularly limited, it is preferable that Compound 1 or a salt thereof existing in a suspended state restricts the movement of many water molecules in the preparation.
- the degree of restriction can be evaluated by measuring the proton relaxation time of water molecules using a pulse NMR particle interface characteristic evaluation apparatus.
- a pulse NMR particle interface characteristic evaluation apparatus for an aqueous suspension preparation having a content of Compound 1 or a salt thereof of 40 mg / mL (converted to the hydrochloride of Compound 1), measurement was performed by a pulse NMR particle interface characteristic evaluation apparatus, and the calculation was performed.
- Rsp preferably represents about 0.25 or more.
- Rsp is more preferably about 0.25 to about 2.0, and still more preferably about 0.25 to about 1.5.
- the aqueous suspension preparation of the present invention is not particularly limited, but preferably has a fluidity that does not impair usability, dosage, and manufacturability.
- the fluidity that does not hinder the usability, dosage, and manufacturability is not limited to these, but for example, preferably within 1 minute when a test tube filled with the preparation is inverted. More preferably, when the test tube filled with the formulation is inverted, the formulation starts to flow within 30 seconds, and more preferably, the test tube filled with the formulation is removed. When reversed, the formulation begins to flow within 10 seconds.
- the hydrochloride of Compound 1 produced according to the method described in Patent Document 2 was pulverized to a median diameter of about 1.0 to about 4.0 ⁇ m by dry pulverization. It was.
- Hypromellose TC-5R (manufactured by Shin-Etsu Chemical Co., Ltd.)
- Hydroxypropyl cellulose NISSO HPC-L (Nippon Soda Co., Ltd.)
- Sucrose laurate Ryoto sugar ester L-1695 (Mitsubishi Chemical Foods, Ryoto is a registered trademark)
- Examples 1 to 5 The preparations of Examples 1 to 5 were prepared by the following method using the hydrochloride, additives and solvent of Compound 1 shown in the following table. Dipotassium phosphate was added to purified water and dissolved. Thereafter, this solution was heated to 70 ° C., and methyl paraoxybenzoate was added and dissolved. After this solution was cooled to room temperature, hypromellose, hydroxypropylcellulose, sucrose laurate, polyvinyl alcohol or methylcellulose was added and dissolved.
- Example 6 The preparation of Example 6 was prepared by the following method using the hydrochloride of the compound 1, the additive and the solvent in the amounts shown in the following table. Dipotassium phosphate was added to purified water and dissolved. Thereafter, propylene glycol and methyl paraoxybenzoate were taken, and methyl paraoxybenzoate was once dissolved in propylene glycol in another container, and then added to purified water. Thereafter, hypromellose was added and dissolved.
- Example 6 the hydrochloride of compound 1 was added to this solution, and the mixture was dispersed at 8000 rpm for 10 minutes using a precision dispersion / emulsifier: CLEARMIX CLM-0.8S (M Technique Co.) to prepare the preparation of Example 6 did.
- CLEARMIX CLM-0.8S M Technique Co.
- Examples 7-10 The preparations of Examples 7 to 10 were prepared by the following method using the hydrochloride of the compound 1, the additive and the solvent in the amounts shown in the following table. Dipotassium phosphate was added to purified water and dissolved. Thereafter, this solution was heated to 70 ° C. to dissolve methyl paraoxybenzoate. After this solution was cooled to room temperature, hypromellose or poloxamer 188 was added and dissolved. Subsequently, the hydrochloride of compound 1 was added to this solution, and the mixture was dispersed at 8000 rpm for 10 minutes using a precision dispersion / emulsifier: CLEARMIX CLM-0.8S (M Technique Co., Ltd.). Preparations of Examples 7 to 10 was prepared.
- Examples 11 and 12 The preparations of Examples 11 and 12 were prepared in the following manner using the amount of Compound 1, hydrochloride, additives and solvent shown in the table below. Dipotassium phosphate was added to purified water and dissolved. Thereafter, this solution was heated to 70 ° C., and methyl paraoxybenzoate was added and dissolved. After cooling the solution temperature to room temperature, hypromellose was added and dissolved. Subsequently, the hydrochloride of compound 1 was added to this solution, and the mixture was dispersed at 8000 rpm for 10 minutes using a precision dispersion / emulsifier: CLEARMIX CLM-0.8S (M Technique Co., Ltd.). A formulation was prepared.
- Example 13 A preparation of Example 13 was prepared by the following method using the hydrochloride of the compound 1, the additive and the solvent in the amounts shown in the following table.
- Examples 14 and 15 The preparations of Examples 14 and 15 were prepared by the following method using Compound 1 hydrochloride, additives and solvent in the amounts shown in the following table.
- a liquid was prepared.
- (2) Preparation of solution B Monopotassium phosphate and dipotassium phosphate were added to purified water and dissolved. Thereafter, this solution was heated to 70 ° C., and methyl paraoxybenzoate was added and dissolved. Subsequently, xanthan gum was added and dissolved. Then, this solution was cooled to room temperature, and B liquid was prepared.
- (3) Preparation of Examples 14 and 15 The preparations of Examples 14 and 15 were prepared by mixing the liquid A and the liquid B so that the mass ratio was 1: 1.
- Examples 16-19 Formulations of Examples 16 to 19 were prepared by the following method using the hydrochloride, additive and solvent of Compound 1 shown in the following table.
- Examples 20-23 The preparations of Examples 20 to 23 were prepared by the following method using the hydrochloride, additives and solvent of Compound 1 shown in the following table.
- Examples 24-27 Preparations of Examples 24 to 27 were prepared by the following method using the hydrochloride of the compound 1, the additive and the solvent shown in the following table.
- (1) Preparation of solution A Hypromellose was added to purified water and dissolved. Subsequently, dipotassium phosphate was added and dissolved. Thereafter, propylene glycol and methyl paraoxybenzoate were taken, and once methyl paraoxybenzoate was dissolved in propylene glycol in another container, it was added to purified water in which dipotassium phosphate was dissolved.
- Examples 28-30 Preparations of Examples 28 to 30 were prepared by the following method using the hydrochloride, additives and solvent of Compound 1 shown in the table below.
- (1) Preparation of solution A Hypromellose was added to purified water and dissolved. Subsequently, dipotassium phosphate and erythritol were added and dissolved. Thereafter, propylene glycol and methyl paraoxybenzoate were taken, and methyl paraoxybenzoate was once dissolved in propylene glycol in another container, and then added to purified water in which dipotassium phosphate and erythritol were dissolved.
- Examples 31 and 32 The preparations of Examples 31 and 32 were prepared by the following method using the hydrochloride of the compound 1, the additive and the solvent shown in the following table.
- (1) Preparation of solution A Hypromellose was added to purified water and dissolved. Subsequently, sodium chloride and erythritol were added and dissolved. Thereafter, propylene glycol and methyl paraoxybenzoate were taken, and methyl paraoxybenzoate was once dissolved in propylene glycol in another container, and then added to purified water in which sodium chloride and erythritol were dissolved.
- Examples 33 and 34 The preparations of Examples 33 and 34 were prepared by the following method using the hydrochloride, additives and solvent of Compound 1 shown in the table below.
- CLEARMIX CLM-0.8S M Technique Co., Ltd.
- Example 35 A formulation of Example 35 was prepared by the following method using the hydrochloride, additive and solvent of Compound 1 shown in the table below. Sodium chloride, sodium benzoate and sorbitol were added to purified water and dissolved. Subsequently, this solution was heated to 70 ° C., and xanthan gum was added and dissolved. Then, after cooling this solution to room temperature, the hydrochloride of compound 1 was added to this solution, and the mixture was dispersed at 15000 rpm for 10 minutes using a precision dispersion / emulsifier: CLEARMIX CLM-0.8S (M Technique). The formulation of Example 35 was prepared.
- Comparative Examples 1-7 According to the production methods of Examples 1 to 5, preparations of Comparative Examples 1 to 7 were prepared.
- Comparative Examples 8 and 9 In accordance with the production method of Example 6, preparations of Comparative Examples 8 and 9 were prepared.
- Comparative Examples 10-13 The preparations of Comparative Examples 10 to 13 were prepared according to the production methods of Examples 7 to 10.
- Comparative Examples 14-16 According to the production method of Example 13, preparations of Comparative Examples 14 to 16 were prepared.
- Comparative Examples 17 and 18 According to the production methods of Examples 14 and 15, preparations of Comparative Examples 17 and 18 were prepared.
- Test example 1 (manufacturability evaluation) The preparations of Examples 1 to 5 and Comparative Examples 1 to 7 were prepared, and then allowed to stand at room temperature for 1 hour. After standing, the suspended particles do not float on the liquid surface but are dispersed or settled in the liquid. If the suspended particles float on the liquid surface, the production is not possible (A). B).
- Test example 2 (circularity measurement) According to the method for measuring the degree of circularity (II) in this specification, the degree of circularity of the preparations of Examples and Comparative Examples shown in the following table was measured.
- Test Example 3 (Measurement of median diameter) According to the measurement method of (III) median diameter in this specification, the median diameter of suspended particles of hydrochloride of Compound 1 of the preparations of Examples and Comparative Examples shown in the following table was measured.
- Test Example 4 (Rsp measurement) According to the measurement method of (IV) Rsp in this specification, Rsp of the preparations of Examples and Comparative Examples shown in the following table was measured.
- Test Example 5 (Redispersibility evaluation) According to the evaluation method of (I) redispersibility in the present specification, evaluation of redispersibility after the preparations of Examples and Comparative Examples shown in the following table were stored at 25 ° C. or 40 ° C. for 1 month. Carried out.
- the Rsp was 0.25 or more when the Rsp was measured using pulsed NMR after dilution so that the content of the hydrochloride salt of Compound 1 in the preparation was 40 mg / mL.
- the formulations of certain Examples 1, 2, 6, 8, 9, 10, and 13 had good redispersibility.
- the preparations of Comparative Examples 1, 2, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15 and 16 in which the Rsp is less than 0.25 have poor redispersibility. there were.
- the present invention it is possible to provide an aqueous suspension preparation excellent in redispersibility of Compound 1 or a salt thereof.
- the aqueous suspension type preparation obtained by the present invention easily returns to the original suspended state after being left standing for a long period of time, so that the dosage varies from user to user or from use to use. Expected to be less likely to occur.
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Abstract
Description
本発明は、上記事情に鑑みてなされたものであり、その課題は、化合物1またはその塩を有効成分として含有する水性懸濁型製剤であって、長期間静置することで懸濁粒子が沈降したとしても、簡単な操作によって容易に元の分散状態に戻る、再分散性の良好な水性懸濁型製剤を提供することにある。
すなわち、本発明は以下のとおりである。
(I)製剤中に増粘剤を含む場合は、懸濁粒子の円形度が約0.960以下、
(II)製剤中に増粘剤を含まない場合は、懸濁粒子の円形度が約0.945以下。
(1)製剤中、化合物1の塩酸塩に換算して、約0.1~約400mg/mLの含有量の化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物、
(2)製剤中、約0.1~約20mg/mLの含有量の、セルロース誘導体およびショ糖脂肪酸エステルからなる群から選択される少なくとも1種である分散剤、および
(3)製剤中、約0.5~約20mg/mLの含有量の、多糖類から選択される少なくとも1種である増粘剤。
(2)製剤中、分散剤の含有量が、約0.2~約20mg/mLであり、および
(3)製剤中、増粘剤の含有量が、約2~約10mg/mLである、項22に記載の製剤。
(1)製剤中、化合物1の塩酸塩に換算して、約0.1~約400mg/mLの含有量の化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物、
(2)製剤中、約0.1~約20mg/mLの含有量の、セルロース誘導体およびショ糖脂肪酸エステルからなる群から選択される少なくとも1種である分散剤、
(3)製剤中に、化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物を化合物1の塩酸塩に換算した1mgに対して、約0.01~約15mgの割合で含有する、ナトリウム塩、カリウム塩およびこれらの水和物からなる群から選択される少なくとも1種である緩衝剤、および
(4)製剤中、約0.1~約10mg/mLの含有量の、安息香酸誘導体から選択される少なくとも1種である防腐剤。
(2)製剤中、分散剤の含有量が、約0.2~約20mg/mLであり、
(3)製剤中に、緩衝剤が、化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物を化合物1の塩酸塩に換算した1mgに対して、約0.125~約0.85mgの割合で含有され、および
(4)製剤中、防腐剤の含有量が、約0.5~約2.5mg/mLである、項24に記載の製剤。
(1)製剤中、化合物1の塩酸塩に換算して、約0.1~約400mg/mLの含有量の化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物、
(2)製剤中、約0.1~約20mg/mLの含有量の、セルロース誘導体およびショ糖脂肪酸エステルからなる群から選択される少なくとも1種である分散剤、
(3)製剤中、約0.5~約20mg/mLの含有量の、多糖類から選択される少なくとも1種である増粘剤、
(4)製剤中に、化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物を化合物1の塩酸塩に換算した1mgに対して、約0.01~約15mgの割合で含有する、ナトリウム塩、カリウム塩およびこれらの水和物からなる群から選択される少なくとも1種である緩衝剤、
(5)製剤中、約0.1~約10mg/mLの含有量の、安息香酸誘導体から選択される少なくとも1種である防腐剤、および
(6)製剤中、約1~約500mg/mLの含有量の、多価アルコールから選択される少なくとも1種である安定化剤。
(2)製剤中、分散剤の含有量が、約0.2~約20mg/mLであり、
(3)製剤中、増粘剤の含有量が、約2~約10mg/mLであり、
(4)製剤中に、緩衝剤が、化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物を化合物1の塩酸塩に換算した1mgに対して、約0.125~約0.85mgの割合で含有され、
(5)製剤中、防腐剤の含有量が、約0.5~約2.5mg/mLであり、および
(6)製剤中、安定化剤の含有量が、約50~約150mg/mLである、項26に記載の製剤。
(I)製剤中に、キサンタンガム、グァーガム、カラギーナンおよびアルギン酸ナトリウムからなる群から選択される少なくとも1種を含む増粘剤を含む場合は、懸濁粒子の円形度が約0.960以下、
(II)製剤中に、キサンタンガム、グァーガム、カラギーナンおよびアルギン酸ナトリウムからなる群から選択される増粘剤を含まない場合は、懸濁粒子の円形度が約0.945以下。
本発明における、再分散性の良否は、例えば、水性懸濁型製剤を試験管に充てんし、その後密封し、25℃または40℃で数箇月間静置保存することで自然沈降により懸濁粒子の沈殿を形成させた後、試験管を3秒程度かけて穏やかに反転させることで、沈殿がほぐれ、製造直後の懸濁状態に戻るか否かで判断することができる。具体的には、一回の反転操作で沈殿がほぐれ、製造直後の懸濁状態に戻ったことが目視により確認された場合は再分散性が著しく良好(A)と判断した。また、反転操作を5回繰り返す間に、懸濁状態に戻った場合は再分散性が良好(B)と判断した。一方、反転操作を5回繰り返しても、懸濁状態に戻らなかった場合は再分散性が不良(C)と判断した。良好な再分散性とは(A)または(B)の状態を示す。
円形度 = (粒子投影面積と等しい円の周囲長)/(粒子投影像の周囲長)
本発明における、円形度は、例えば、0.25mLの水性懸濁型製剤に対し、化合物1またはその塩が溶解しない溶媒(精製水または中性の緩衝液)5mLを添加することで得られる液を測定液とし、フロー式粒子像分析装置を用いて測定することにより、算出することができる。また、測定する水性懸濁型製剤の濃度に応じて、適宜希釈して円形度を測定することができる。
本発明における、メジアン径は、例えば、0.01mLの水性懸濁型製剤に対し、化合物1またはその塩が溶解しない溶媒(精製水または中性の緩衝液)40mLを添加することで得られる液を測定液とし、レーザー回折式粒度分布測定装置を用いて測定することができる。これらに限定されるものではないが、例えば、レーザー回折式粒度分布測定装置としてHELOS BR-MULTIを用いて測定する場合、測定時に表示される「サンプル:測定濃度」が5~10%となるように測定液の希釈率を調整することが好ましい。
Rsp = (水性懸濁型製剤の横緩和時間逆数)/(懸濁粒子を除いた水性懸濁型製剤の横緩和時間逆数) - 1
また、一般的なRspの算出には、本発明におけるRspの算出に用いている横緩和時間逆数だけではなく、縦緩和時間逆数を用いることもできる。
本発明における、Rspは、製剤中の化合物1またはその塩の含有量が40mg/mL(化合物1の塩酸塩に換算)となる様に調整し、以下の方法によって測定することができる。
水性懸濁型製剤の一部を超高速遠心機:himac CS150GX(HITACHI社)を用いて100,000rpm、30分間遠心処理を行うことで、水性懸濁型製剤中の懸濁粒子を完全に沈降させる。この時点で、目視で澄明な上澄み液が得られた場合は、当該上澄み液を「懸濁粒子を除いた水性懸濁型製剤」とする。また、上澄み液が目視上澄明でない場合は、澄明となるまで上記遠心操作を繰り返す。この様にして得られる「懸濁粒子を除いた水性懸濁型製剤」測定液について、パルスNMR粒子界面特性装置を用いて横緩和時間を測定することで、Rsp算出に用いる「懸濁粒子を除いた水性懸濁型製剤の横緩和時間逆数」値を得ることができる。一方、「水性懸濁型製剤の横緩和時間逆数」値は、目視上、均一となるまで反転混和を繰り返した水性懸濁製剤を「水性懸濁型製剤」測定液とし、パルスNMR粒子界面特性装置を用いて横緩和時間を測定することで得られる。この様にして得られる各々の横緩和時間の値を上記式に当てはめて計算することで、水性懸濁型製剤のRspを算出することができる。
本発明の化合物1は、(3aR,4S,7R,7aS)-2-{(1R,2R)-2-[4-(1,2-ベンゾイソチアゾール-3-イル)ピペラジン-1-イルメチル]シクロヘキシルメチル}ヘキサヒドロ-4,7-メタノ-2H-イソインドール-1,3-ジオンであり、下記式で表される化合物である。
(1)化合物1またはその塩以外の添加剤を溶媒に加え、溶解する。
(2)上記(1)で調製した溶液に、乾式粉砕された化合物1またはその塩を添加し、混合する。
(3)必要に応じて、上記(2)で添加された化合物1またはその塩の凝集物を、ホモミキサー、撹拌機、高速回転分散機等を用いてほぐす(湿式粉砕)、または、撹拌、分散等を行うことによって、本発明の水性懸濁型製剤を製造することができる。
(1)化合物1またはその塩、および増粘剤以外の添加剤を溶媒に加え、溶解する。
(2)上記(1)で調製した溶液に、乾式粉砕された化合物1またはその塩を添加した後に、混合しA液を調製する。
(3)必要に応じて、上記(2)で添加された化合物1またはその塩の凝集物を、ホモミキサー、撹拌機、高速回転分散機等を用いてほぐす(湿式粉砕)、または、撹拌、分散等を行うことによって、化合物1またはその塩を均一に懸濁化する。
(4)一方、別の容器で化合物1またはその塩、および分散剤以外の添加剤(増粘剤を含む場合は、増粘剤も加える)を溶媒に加えて溶解し、B液を調製する。
(5)上記で調製したA液およびB液を、それぞれ適量ずつ混合することで、本発明の水性懸濁型製剤を製造することができる。
・ヒプロメロース:TC-5R(信越化学工業株式会社製)
・ヒドロキシプロピルセルロース:NISSO HPC-L(日本曹達株式会社製)
・ショ糖ラウリン酸エステル:リョートーシュガーエステル L-1695(三菱化学フーズ株式会社製、リョートーは登録商標)
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例1~5の製剤を調製した。
精製水にリン酸二カリウムを加え溶解させた。その後、この溶液を70℃まで加温し、パラオキシ安息香酸メチルを加え溶解させた。この溶液を室温まで冷ました後に、ヒプロメロース、ヒドロキシプロピルセルロース、ショ糖ラウリン酸エステル、ポリビニルアルコールまたはメチルセルロースを加え溶解させた。続いて、この溶液に、化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、実施例1~5の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例6の製剤を調製した。
精製水にリン酸二カリウムを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、精製水に添加した。その後、ヒプロメロースを加え、溶解させた。続いて、この溶液に化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、実施例6の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例7~10の製剤を調製した。
精製水にリン酸二カリウムを加え溶解させた。その後、この溶液を70℃に加温し、パラオキシ安息香酸メチルを溶解させた。この溶液を室温まで冷ました後に、ヒプロメロースまたはポロキサマー188を加え溶解させた。続いて、この溶液に化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、実施例7~10の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例11および12の製剤を調製した。
精製水にリン酸二カリウムを加え溶解させた。その後、この溶液を70℃まで加温し、パラオキシ安息香酸メチルを加え溶解させた。この液温を室温まで冷ました後に、ヒプロメロースを加え溶解させた。続いて、この溶液に、化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、実施例11および12の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例13の製剤を調製した。
(1)A液の調製
精製水にヒプロメロースを加え溶解させた。続いて、リン酸二カリウムを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、リン酸二カリウムを溶解させた精製水に添加した。続いて、化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、A液を調製した。
(2)B液の調製
精製水にリン酸二カリウムを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、リン酸二カリウムを溶解させた精製水に添加した。続いて、この溶液を70℃まで加温し、キサンタンガムを加え溶解させた。その後、この溶液を室温まで冷まし、B液を調製した。
(3)実施例13の調製
A液とB液を質量比で1対1となるように混合することで、実施例13の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例14および15の製剤を調製した。
(1)A液の調製
精製水にヒプロメロースを加え溶解させた。続いて、リン酸一カリウムおよびリン酸二カリウムを加え溶解させた。その後、この溶液を70℃まで加温し、パラオキシ安息香酸メチルを加え溶解させた。続いて、この溶液を室温まで冷ました後、化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、A液を調製した。
(2)B液の調製
精製水にリン酸一カリウムおよびリン酸二カリウムを加え溶解させた。その後、この溶液を70℃まで加温し、パラオキシ安息香酸メチルを加え溶解させた。続いて、キサンタンガムを加え溶解させた。その後、この溶液を室温まで冷まし、B液を調製した。
(3)実施例14および15の調製
A液とB液を質量比で1対1となるように混合することで、実施例14および15の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例16~19の製剤を調製した。
(1)A液の調製
精製水にヒプロメロースを加え溶解させた。続いて、リン酸二カリウムを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、リン酸二カリウムを溶解させた精製水に添加した。続いて、化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、A液を調製した。
(2)B液の調製
精製水にリン酸二カリウムを溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、リン酸二カリウムを溶解させた精製水に添加した。続いて、この溶液を70℃まで加温し、キサンタンガムおよびグァーガムを加え溶解させた。その後、この溶液を室温まで冷まし、B液を調製した。
(3)実施例16~19の調製
A液とB液を質量比で1対1となるように混合することで、実施例16~19の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例20~23の製剤を調製した。
(1)A液の調製
精製水にヒプロメロースを加え溶解させた。続いて、リン酸二カリウムを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、リン酸二カリウムを溶解させた精製水に添加した。続いて、化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、A液を調製した。
(2)B液の調製
精製水にリン酸二カリウムを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、リン酸二カリウムを溶解させた精製水に添加した。続いて、この溶液を70℃まで加温し、キサンタンガムを加え溶解させた。その後、この溶液を室温まで冷まし、B液を調製した。
(3)実施例20~23の調製
A液とB液を質量比で1対1となるように混合することで、実施例20~23の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例24~27の製剤を調製した。
(1)A液の調製
精製水にヒプロメロースを加え溶解させた。続いて、リン酸二カリウムを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、リン酸二カリウムを溶解させた精製水に添加した。続いて、化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、A液を調製した。
(2)B液の調製
精製水にリン酸二カリウムを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、リン酸二カリウムを溶解させた精製水に添加した。続いて、この溶液を70℃まで加温し、キサンタンガム、アルギン酸ナトリウムおよびカルボキシビニルポリマーから選択される1種または2種を加え溶解させた。その後、この溶液を室温まで冷まし、B液を調製した。
(3)実施例24~27の調製
A液とB液を質量比で1対1となるように混合することで、実施例24~27の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例28~30の製剤を調製した。
(1)A液の調製
精製水にヒプロメロースを加え溶解させた。続いて、リン酸二カリウムおよびエリスリトールを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、リン酸二カリウムおよびエリスリトールを溶解させた精製水に添加した。続いて、化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、A液を調製した。
(2)B液の調製
精製水にリン酸二カリウムおよびエリスリトールを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、リン酸二カリウムおよびエリスリトールを溶解させた精製水に添加した。続いて、この溶液を70℃まで加温し、キサンタンガムを加え溶解させた。その後、この溶液を室温まで冷まし、B液を調製した。
(3)実施例28~30の調製
A液とB液を質量比で1対1となるように混合することで、実施例28~30の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例31および32の製剤を調製した。
(1)A液の調製
精製水にヒプロメロースを加え溶解させた。続いて、塩化ナトリウムおよびエリスリトールを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、塩化ナトリウムおよびエリスリトールを溶解させた精製水に添加した。続いて、化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、A液を調製した。
(2)B液の調製
精製水に塩化ナトリウムおよびエリスリトールを加え溶解させた。その後、プロピレングリコールおよびパラオキシ安息香酸メチルを取り、一旦別の容器でプロピレングリコールにパラオキシ安息香酸メチルを溶解させた後、塩化ナトリウムおよびエリスリトールを溶解させた精製水に添加した。続いて、この溶液を70℃まで加温し、キサンタンガムを加え溶解させた。その後、この溶液を室温まで冷まし、B液を調製した。
(3)実施例31および32の調製
A液とB液を質量比で1対1となるように混合することで、実施例31および32の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例33および34の製剤を調製した。
(1)A液の調製
精製水にヒプロメロースを加え溶解させた。続いて、安息香酸ナトリウム、プロピレングリコールおよびエリスリトールを加え溶解させた。続いて、化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて8000rpmで10分間分散し、A液を調製した。
(2)B液の調製
精製水に安息香酸ナトリウム、プロピレングリコールおよびエリスリトールを加え溶解させた。続いて、この溶液を70℃まで加温し、キサンタンガムを加え溶解させた。その後、この溶液を室温まで冷まし、B液を調製した。
(3)実施例33および34の調製
A液とB液を質量比で1対1となるように混合することで、実施例33および34の製剤を調製した。
下表に示す量の化合物1の塩酸塩、添加剤および溶媒を用い、以下の方法で、実施例35の製剤を調製した。
精製水に塩化ナトリウム、安息香酸ナトリウムおよびソルビトールを加え溶解させた。続いて、この溶液を70℃まで加温し、キサンタンガムを加え溶解させた。その後、この溶液を室温まで冷ました後に、この溶液に化合物1の塩酸塩を加え、精密分散・乳化機:クレアミックス CLM-0.8S(エム・テクニック社)を用いて15000rpmで10分間分散し、実施例35の製剤を調製した。
実施例1~5および比較例1~7の製剤を調製した後、1時間室温で静置した。静置後、懸濁粒子が液面に浮上することなく、液中に分散あるいは沈降している場合は製造可能(A)とし、懸濁粒子が液面に浮上している場合は製造不良(B)とした。
Claims (29)
- (3aR,4S,7R,7aS)-2-{(1R,2R)-2-[4-(1,2-ベンゾイソチアゾール-3-イル)ピペラジン-1-イルメチル]シクロヘキシルメチル}ヘキサヒドロ-4,7-メタノ-2H-イソインドール-1,3-ジオン(化合物1)、その製薬学的に許容される酸付加塩またはこれらの混合物を有効成分として含有する水性懸濁型製剤であって、下記(I)または(II)の特徴を有する水性懸濁型製剤:
(I)製剤中に増粘剤を含む場合は、懸濁粒子の円形度が約0.960以下、
(II)製剤中に増粘剤を含まない場合は、懸濁粒子の円形度が約0.945以下。 - (3aR,4S,7R,7aS)-2-{(1R,2R)-2-[4-(1,2-ベンゾイソチアゾール-3-イル)ピペラジン-1-イルメチル]シクロヘキシルメチル}ヘキサヒドロ-4,7-メタノ-2H-イソインドール-1,3-ジオン、その製薬学的に許容される酸付加塩またはこれらの混合物を含有し、懸濁粒子の円形度が約0.945以下である、水性懸濁型製剤。
- 製剤中の化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物の懸濁粒子のメジアン径が、約0.1~約30μmである、請求項1または2に記載の製剤。
- 製剤中の化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物の含有量が40mg/mL(化合物1の塩酸塩に換算)となる様に希釈して、パルスNMRを用いて測定されたRsp値が、約0.25以上である、請求項1~3のいずれか一項に記載の製剤。
- 製剤中の化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物の含有量が、化合物1の塩酸塩に換算して、約0.1~約400mg/mLである、請求項1~4のいずれか一項に記載の製剤。
- さらに、分散剤を含む、請求項1~5のいずれか一項に記載の製剤。
- 分散剤として、セルロース誘導体、ショ糖脂肪酸エステルおよびポリビニルアルコールからなる群から選択される少なくとも1種を含む、請求項6に記載の製剤。
- 製剤中の分散剤の含有量が、約0.1~約20mg/mLである、請求項6または7に記載の製剤。
- 増粘剤を含む、請求項1~8のいずれか一項に記載の製剤。
- 増粘剤として、多糖類から選択される少なくとも1種を含む、請求項9に記載の製剤。
- 製剤中の増粘剤の含有量が、約0.5~約20mg/mLである、請求項9または10に記載の製剤。
- さらに、緩衝剤を含む、請求項1~11のいずれか一項に記載の製剤。
- 緩衝剤として、ナトリウム塩、カリウム塩およびこれらの水和物からなる群から選択される少なくとも1種を含む、請求項12に記載の製剤。
- 製剤中に緩衝剤が、化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物を化合物1の塩酸塩に換算した1mgに対して、約0.01~約15mgの割合で含有される、請求項12または13に記載の製剤。
- さらに、防腐剤を含む、請求項1~14のいずれか一項に記載の製剤。
- 防腐剤として、安息香酸誘導体から選択される少なくとも1種を含む、請求項15に記載の製剤。
- 製剤中の防腐剤の含有量が、約0.1~約10mg/mLである、請求項15または16に記載の製剤。
- さらに、安定化剤を含む、請求項1~17のいずれか一項に記載の製剤。
- 安定化剤として、多価アルコールから選択される少なくとも1種を含む、請求項18に記載の製剤。
- 製剤中の安定化剤の含有量が、約1~約500mg/mLである、請求項18または19に記載の製剤。
- 下記(1)~(6)を含有し、懸濁粒子の円形度が約0.960以下である、請求項1~20のいずれか一項に記載の製剤:
(1)製剤中、化合物1の塩酸塩に換算して、約0.1~約400mg/mLの含有量の化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物、
(2)製剤中、約0.1~約20mg/mLの含有量の、セルロース誘導体およびショ糖脂肪酸エステルからなる群から選択される少なくとも1種である分散剤、
(3)製剤中、約0.5~約20mg/mLの含有量の、多糖類から選択される少なくとも1種である増粘剤、
(4)製剤中に化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物を化合物1の塩酸塩に換算した1mgに対して、約0.01~約15mgの割合で含有する、ナトリウム塩、カリウム塩およびこれらの水和物からなる群から選択される少なくとも1種である緩衝剤、
(5)製剤中、約0.1~約10mg/mLの含有量の、安息香酸誘導体から選択される少なくとも1種である防腐剤、および
(6)製剤中、約1~約500mg/mLの含有量の、多価アルコールから選択される少なくとも1種である安定化剤。 - 化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物として、化合物1の塩酸塩を含む、請求項1~21のいずれか一項に記載の製剤。
- 製剤中の化合物1、その製薬学的に許容される酸付加塩またはこれらの混合物の含有量が、化合物1の塩酸塩に換算して、約12~約100mg/mLである、請求項1~22のいずれか一項に記載の製剤。
- 経口液剤である請求項1~23のいずれか一項に記載の製剤。
- 請求項1~24のいずれか一項に記載の製剤を含有する、精神疾患の治療剤および/または予防剤。
- 精神疾患が、統合失調症、双極性障害、老人性痴呆症またはうつ病である、請求項25に記載の治療剤および/または予防剤。
- 治療が必要な患者に、請求項1~24のいずれか一項に記載の製剤を投与することを含む、精神疾患を治療および/または予防するための方法。
- 精神疾患の治療剤および/または予防剤を製造するための、請求項1~24のいずれか一項に記載の製剤の使用。
- 精神疾患の治療および/または予防に使用するための、請求項1~24のいずれか一項に記載の製剤。
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| US16/328,462 US20210290535A1 (en) | 2016-08-31 | 2017-08-30 | Aqueous suspension preparation |
| CN201780053047.6A CN109640996A (zh) | 2016-08-31 | 2017-08-30 | 水性悬浮型制剂 |
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| WO2019167977A1 (ja) * | 2018-02-28 | 2019-09-06 | 大日本住友製薬株式会社 | 水性懸濁型医薬製剤 |
| WO2019167978A1 (ja) * | 2018-02-28 | 2019-09-06 | 大日本住友製薬株式会社 | 溶出が制御された水性懸濁型医薬製剤 |
| WO2020179925A1 (ja) * | 2019-03-07 | 2020-09-10 | 大日本住友製薬株式会社 | 粒子径が制御された水性懸濁型医薬製剤 |
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