WO2024071348A1 - 滅菌処理したヘテロシクリデンアセトアミド誘導体含有懸濁液 - Google Patents
滅菌処理したヘテロシクリデンアセトアミド誘導体含有懸濁液 Download PDFInfo
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- WO2024071348A1 WO2024071348A1 PCT/JP2023/035547 JP2023035547W WO2024071348A1 WO 2024071348 A1 WO2024071348 A1 WO 2024071348A1 JP 2023035547 W JP2023035547 W JP 2023035547W WO 2024071348 A1 WO2024071348 A1 WO 2024071348A1
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- aqueous suspension
- acetamide
- trifluoromethylchroman
- tetrahydronaphthalen
- hydroxy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P27/00—Drugs for disorders of the senses
- A61P27/02—Ophthalmic agents
- A61P27/04—Artificial tears; Irrigation solutions
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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
- A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
- A61K31/35—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom
- A61K31/352—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom condensed with carbocyclic rings, e.g. methantheline
- A61K31/353—3,4-Dihydrobenzopyrans, e.g. chroman, catechin
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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
- A61K47/26—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
- A61K47/34—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0048—Eye, e.g. artificial tears
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/10—Dispersions; Emulsions
Definitions
- the present disclosure relates to the fields of medicine, healthcare, biology, and biotechnology.
- the present disclosure relates to a technology for improving the redispersibility of a suspension containing a heterocyclideneacetamide derivative, and a formulation technology based thereon.
- the number of dry eye patients in Japan is estimated at at least 8 million, and the number is estimated to be about 22 million if potential patients who use over-the-counter eye drops without visiting a doctor's office are included, and it is said that there are more than 1 billion people with dry eye worldwide.
- the use of televisions, computers, mobile devices, etc. increases the number of times people stare at screens, reducing the number of times they blink, and the use of air conditioners, etc., dries the air, which is known to result in increased evaporation of tears and cause dry eyes.
- refractive surgery and the use of contact lenses can result in dry eyes. Symptoms associated with dry eyes include discomfort, dryness, a burning sensation, and irritation on the surface of the eye.
- Patent document 1 International Publication No. 2021/066144 Brochure
- the present disclosure provides an aqueous suspension having excellent redispersibility, which contains a heat-treated heterocyclideneacetamide derivative, (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof.
- the present disclosure provides: (Item 1) An aqueous suspension comprising heat-treated (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof.
- (Item 1-1) The aqueous suspension according to the preceding item, wherein the heat treatment is a dry heat treatment.
- the heat treatment is a treatment during a sterilization process.
- the aqueous suspension preparation according to the above item, wherein the treatment in the sterilization step is a dry heat sterilization treatment.
- Item 8 Item 11.
- Item 9 Item 2.
- Item 11 Item 2.
- An aqueous suspension comprising heat-treated (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, and a non-ionic surfactant, the heat treatment comprises a heat treatment at a temperature below about 180° C.; The heat treatment is carried out for about 30 minutes to about 5 hours.
- the concentration of the (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, in the aqueous suspension is about 0.01 w/v % to about 5 w/v %;
- An aqueous suspension, wherein the concentration of the nonionic surfactant in the aqueous suspension is from about 0.01 w/v % to about 0.05 w/v %.
- (Item 17) The aqueous suspension according to any one of the preceding items, wherein the (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide is (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-((7R)-7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide.
- the aqueous suspension according to claim 1, wherein the improved redispersibility is such that the suspended particles are redispersed with less than about 35 shakings, as assessed by shaking. (Item 22) 2.
- the aqueous suspension of claim 1, wherein the improved redispersibility is redispersibility of the suspended particles after less than about 50 inversions, as assessed by inversion.
- An aqueous suspension comprising heat-treated (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, wherein the average particle size (D50) of the (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma-ceutically acceptable salt or solvate thereof in the aqueous suspension is from about 1 ⁇ m to about 10 ⁇ m.
- a method for producing an aqueous suspension comprising the steps of: heat treating (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof; mixing the heat-treated (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, with a solvent; Method.
- aqueous suspension according to any one of the preceding claims, wherein the plastic container is made of polyethylene or polypropylene.
- Item B1 An aqueous suspension comprising gamma ray sterilized (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof.
- Item B2 Item 11.
- (Item B3) An aqueous suspension comprising gamma ray sterilized (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, and a non-ionic surfactant.
- (Item B4) Item 11. The aqueous suspension of any one of the preceding items, wherein the gamma sterilization treatment comprises gamma sterilization at about 10 to about 50 kGy. (Item B5) 2.
- Item B6 Item 2. The aqueous suspension according to any one of the preceding items, wherein the concentration of the nonionic surfactant in the aqueous suspension is from about 0.0001 w/v % to about 0.1 w/v %.
- Item B7 Item 2. The aqueous suspension according to any one of the preceding items, wherein the concentration of the nonionic surfactant in the aqueous suspension is from about 0.001 w/v % to about 0.5 w/v %.
- Item B8 Item 2.
- the nonionic surfactant is at least one selected from the group consisting of tyloxapol, polysorbate, polyethylene glycol monostearate, and polyoxyethylene hydrogenated castor oil.
- Item B10 Item 11. The aqueous suspension of any one of the preceding items, wherein the nonionic surfactant is tyloxapol.
- An aqueous suspension comprising gamma ray sterilized (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, and a non-ionic surfactant
- the gamma radiation sterilization treatment comprises gamma radiation treatment at about 10 to about 50 kGy
- the concentration of the (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, in the aqueous suspension is about 0.01 w/v % to about 5 w/v %
- (Item B14) The aqueous suspension according to any one of the preceding items, wherein the (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide is (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-((7R)-7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide.
- (Item B15) The aqueous suspension according to any one of the preceding items, comprising gamma-ray sterilized (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, wherein the (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof in the aqueous suspension is redispersed in less than about 35 shakes when evaluated by shaking.
- (Item B16) The aqueous suspension according to any one of the preceding items, comprising gamma-ray sterilized (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, wherein the (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, in the aqueous suspension, redisperses suspended particles after less than about 50 inversions when evaluated by an inversion procedure.
- (Item B20) Gamma ray sterilized (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof.
- a method for producing an aqueous suspension comprising the steps of: heat treating (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof; mixing the heat-treated (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, with a solvent.
- Item A1-1-1 Item 10.
- the heat treatment is a dry heat treatment.
- the heat treatment is a treatment within a sterilization process.
- the treatment in the sterilization step is a dry heat sterilization treatment.
- the heat treatment comprises a heat treatment at a temperature below about 180° C.
- a method for producing an aqueous suspension comprising the steps of: subjecting (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, to gamma radiation; mixing the gamma ray treated (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, with a solvent.
- This disclosure makes it possible to provide an aqueous suspension with excellent redispersibility.
- the present disclosure suppresses the phenomenon in which suspended particles are not uniformly dispersed, enabling the required amount of active ingredient to be administered stably, and achieving a stable and sufficient pharmacological effect. This contributes to improving patient adherence and convenience.
- aqueous suspension is used in the same sense as the term is usually used in this field, and refers to a liquid agent that contains at least a portion of water, in which the ingredients to be mixed are in a suspended state and solid particles are present in the liquid.
- pharmaceutically acceptable salts refers to relatively non-toxic, inorganic or organic acid addition salts, or inorganic or organic base addition salts, of the compounds disclosed herein.
- solvate refers to a group formed by interaction between the compound of the present disclosure or a pharma- ceutically acceptable salt thereof and any solvent, and includes, for example, solvates with organic solvents (e.g., solvates with alcohols (e.g., ethanol)), hydrates, etc. When forming a hydrate, it may be coordinated with any number of water molecules. Examples of hydrates include monohydrates, dihydrates, etc.
- redispersibility refers to the ease with which particles that have settled in the solvent of a liquid containing particles (in the case of a suspension, they are also called “suspended particles", such as a suspension, can be dispersed again uniformly throughout the liquid by storing the liquid for a certain period of time.
- “redispersibility” is evaluated by a test using a shaking or inversion procedure.
- the term “shaking operation” refers to the action of holding a container filled with an “aqueous suspension” in the hand and shaking it up and down.
- the “shaking operation” involves shaking the container up and down in a range of 10 to 15 cm, then shaking it up and back to the original position, counting as one shake, and shaking five times at a speed of 1.1 seconds per set.
- Tests of redispersibility using the "shaking operation” are performed on three samples per formulation, and the average number of sets is calculated from the number of sets required for redispersion for each sample, and this number is used as the number of shakes converted.
- inversion refers to the action of holding a container filled with an “aqueous suspension” in one hand and turning it upside down.
- the redispersibility test using “inversion” is performed on three samples per formulation, and one inversion is defined as the operation of inverting the container 180° upside down at a speed of one second, then inverting it 180° again to return it to the upright position.
- improved redispersibility refers to the fact that particles that have settled in a liquid containing particles, such as a suspension, become easier to disperse again. In comparing any formulation, if the number of "shaking operations” or “tipping operations” described above is reduced, it can be said that redispersibility has been improved.
- the "average particle size of suspended particles” refers to the median particle size (D50) of particles of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen- 1 -yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, and is a value measured using a laser diffraction particle size distribution measuring device.
- nonionic surfactant is also referred to as a nonionic surfactant, and refers to a surfactant in which the hydrophilic group portion is nonionic. Whether or not a surfactant is nonionic can be easily determined by a person skilled in the art, and can be determined by confirming that it does not ionize (does not exhibit ionicity) when dissolved in water.
- nonionic surfactants include tyloxapol, polyoxyl stearates (polyethylene glycol monostearate, polyethylene glycol 40 monostearate (MYS-40), polyethylene glycol 400 monostearate, etc.), polyoxyethylene sorbitan fatty acid esters (polyoxyethylene sorbitan monooleate (polysorbate 80), polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan tristearate, etc.), polyoxyethylene hydrogenated castor oils (polyoxyethylene hydrogenated castor oil 10, polyoxyethylene hydrogenated castor oil 40, polyoxyethylene hydrogenated castor oil 50, polyoxyethylene hydrogenated castor oil 60 (HCO-60), etc.).
- heat treatment refers to the application of heat to a target substance or molecule, aqueous suspension, or composition, and may be any treatment that substantially heats the substance or molecule, aqueous suspension, or composition.
- Heat treatment includes, for example, dry heat treatment, moist heat treatment, and high-pressure steam treatment.
- the temperature of the heat treatment may mean the temperature of the target substance or molecule, aqueous suspension, or composition, or may be the temperature set in the device used to apply heat, or the temperature displayed on the display.
- the time of the heat treatment may mean the time during which the target substance or molecule, aqueous suspension, or composition is maintained at the predetermined temperature as an average temperature after the predetermined temperature is reached when heat is applied to the target substance or molecule, aqueous suspension, or composition, or may be the time set in the device used to apply heat, or the time displayed on the display.
- heat treatment refers to treatment of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, itself.
- Dry heat treatment can be applied to a powder of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof.
- "Powder” means a granular material (made of solid particles with any particle size distribution, in which interactions such as electrostatic forces and van der Waals forces are present between individual particles).
- sterilization refers to substantially removing, killing, or inactivating viruses, microorganisms, etc. present in a target substance or molecule, aqueous suspension, or composition.
- sterilization include gamma ray sterilization, dry heat sterilization, and autoclave sterilization.
- gamma ray sterilization treatment refers to sterilizing a target substance or molecule, aqueous suspension, or composition by irradiating the substance or molecule with gamma rays.
- dry heat sterilization refers to a treatment of sterilization by heating in a dry state.
- sterilization or sterilization treatment refers to treatment performed on (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, itself.
- the gamma radiation sterilization process can be applied to a powder of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof.
- solvent is used to include water, organic solvents, and mixtures of water and organic solvents, and may be sterilized by filtration or other sterilization treatments, and these sterilized solvents are also included in the “solvent” of this specification.
- solvents may contain any additives dissolved therein, such as thickeners, stabilizers, pH adjusters, buffers, and preservatives (antiseptics), and solvents containing these additives are also included in the “solvent” of this specification.
- an aqueous suspension comprising heat-treated (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof.
- an aqueous suspension formulation may be provided that contains heat-treated (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, and a non-ionic surfactant.
- an aqueous suspension containing (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, heat-treated at about 150°C to about 170°C may be provided.
- an aqueous suspension formulation may be provided that contains (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, that has been heat-treated at about 150°C to about 170°C, and a non-ionic surfactant.
- an aqueous suspension containing (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, sterilized by heat treatment at about 100°C to about 170°C, may be provided.
- an aqueous suspension containing (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, sterilized by heat treatment at about 100°C to about 170°C, and a non-ionic surfactant may be provided.
- an aqueous suspension formulation may be provided that includes gamma-sterilized (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof.
- an aqueous suspension formulation may be provided that includes gamma-sterilized (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, and a non-ionic surfactant.
- E gamma-sterilized
- a method for producing an aqueous suspension comprising the steps of heat-treating (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, and mixing the heat-treated (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma-ceutically acceptable salt or solvate thereof, with a solvent.
- a method for producing an aqueous suspension comprising the steps of gamma sterilizing (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, and mixing the gamma sterilized (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma-ceutically acceptable salt or solvate thereof, with a solvent.
- (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide includes the R-form (CAS. No. 920332-28-1), the S-form (CAS. No. 920332-29-2), or the racemic form (CAS. No. 920332-27-0), but the R-form ((E)-2-(7-trifluoromethylchroman-4-ylidene)-N-((7R)-7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide (also referred to as compound (1) in this disclosure)) is more preferred.
- Pharmaceutically acceptable salts of the compounds of the present disclosure are not particularly limited as long as they are pharma- ceutically acceptable salts, but specific examples include mineral acids such as hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid, nitric acid, and phosphoric acid; aliphatic monocarboxylic acids such as formic acid, acetic acid, propionic acid, butyric acid, valeric acid, enanthic acid, capric acid, myristic acid, palmitic acid, stearic acid, lactic acid, sorbic acid, and mandelic acid; aromatic monocarboxylic acids such as benzoic acid and salicylic acid; aliphatic dicarboxylic acids such as oxalic acid, malonic acid, succinic acid, fumaric acid, maleic acid, malic acid, and tartaric acid; and citric acid.
- mineral acids such as hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid, nitric acid
- organic carboxylic acids such as aliphatic tricarboxylic acids, etc.
- acid addition salts with organic sulfonic acids such as aliphatic sulfonic acids such as methanesulfonic acid, ethanesulfonic acid, 2-hydroxyethanesulfonic acid, and aromatic sulfonic acids such as benzenesulfonic acid and p-toluenesulfonic acid
- inorganic base addition salts with metals such as alkali metals or alkaline earth metals such as sodium, potassium, magnesium, and calcium
- salts can be obtained by a conventional method, for example, by mixing a solution containing an equivalent amount of the compound of the present disclosure and the desired acid or base, and collecting the desired salt by filtration or by distilling off the solvent.
- the compound of the present disclosure or its salt can also form a solvate with a solvent such as water or ethanol.
- TRPV1 Transient Receptor Potential Vanilloid 1
- VR1 Transient Receptor Potential Vanilloid 1
- the R-isomer (compound (1)), S-isomer, or racemic form of ((E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide is described in WO 2007/010383, JP 4754566, JP 6230743, WO 2018/221543, JP 6830569, WO 2021/038889, and WO 2021/039023.
- the R-isomer (compound (1)), S-isomer, or racemic form can be produced by the production method described in the publication. The contents of the publication are incorporated herein in their entirety by reference.
- TRPV1 was cloned from the dorsal root ganglion (DRG) as a cation channel that responds to capsaicin, and is also sensitive to heat above 43°C and protons; it is a TRP channel that has been studied as a key molecule in nociception (Biochemistry, Vol. 85, No. 7: 561-565). It is known that TRPV1 activity increases during inflammation and tissue damage, causing hyperalgesia. For this reason, TRPV1 has attracted attention as a potential drug target that can be used to treat pain.
- DRG dorsal root ganglion
- TRPV1 antagonists have been reported to be effective against various pain models, including inflammatory pain, neuropathic pain, and osteoarthritis pain (Biochemistry, Vol. 85, No. 7: 561-565).
- (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof is heat-treated, and the heat-treated (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof is mixed with a solvent to form an aqueous suspension, thereby improving the redispersibility of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof.
- (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof is sterilized with gamma radiation, and the gamma-ray sterilized (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma-ceutically acceptable salt or solvate thereof is mixed with a solvent to form an aqueous suspension, thereby improving the redispersibility of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma-ceutic
- (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof can be present in the aqueous suspension of the present disclosure at a concentration of typically about 0.01 w/v% to about 5 w/v%, preferably about 0.1 w/v% to about 3 w/v%, more preferably about 0.2 w/v% to about 2 w/v%, particularly preferably about 0.2 w/v% to about 1.5 w/v%, and even more preferably about 0.3 w/v% to about 1.0 w/v%.
- the R-isomer of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide or a pharma- ceutically acceptable salt or solvate thereof when used, it can be present in the aqueous suspension formulation of the present disclosure at a concentration of typically about 0.01 w/v% to about 5 w/v%, preferably about 0.1 w/v% to about 3 w/v%, more preferably about 0.2 w/v% to about 2 w/v%, particularly preferably about 0.2 w/v% to about 1.5 w/v%, and even more preferably about 0.3 w/v% to about 1.0 w/v%.
- the heat treatment of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof can be carried out as a treatment within the sterilization process of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof, and the heat treatment temperature can be generally lower than about 180°C, preferably about 175°C or lower, more preferably about 100 to about 175°C, particularly preferably about 100 to about 170°C, even more preferably about 120 to about 170°C, even more preferably about 145 to about 175°C, and most preferably about 150 to about 170°
- the heat treatment time for (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof is usually about 10 minutes to about 24 hours, more preferably about 30 minutes to about 12 hours, particularly preferably about 30 minutes to about 8 hours, and even more preferably about 30 minutes to about 5 hours.
- the gamma ray sterilization treatment of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof can be carried out as a treatment within the sterilization process of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma-ceutically acceptable salt or solvate thereof, and the dose of the gamma ray sterilization treatment can be typically about 10 to about 50 kGy, more preferably about 25 kGy.
- the nonionic surfactant is not particularly limited as long as it is pharma- ceutically acceptable, but examples thereof include tyloxapol, polyoxyl stearates (polyethylene glycol monostearate, polyethylene glycol 40 monostearate (MYS-40), polyethylene glycol 400 monostearate, etc.), polyoxyethylene sorbitan fatty acid esters (polyoxyethylene sorbitan monooleate (polysorbate 80), polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan tristearate, etc.), polyoxyethylene hydrogenated castor oils (polyoxyethylene hydrogenated castor oil 10, polyoxyethylene hydrogenated castor oil 40, polyoxyethylene hydrogenated castor oil 50, polyoxyethylene hydrogenated castor oil 60 (HCO-60), etc.).
- nonionic surfactants may be used alone or in combination of two or more.
- the nonionic surfactant is preferably tyloxapol, polysorbate, polyethylene glycol monostearate, or polyoxyethylene hydrogenated castor oil, more preferably tyloxapol, polysorbate, or polyethylene glycol monostearate, and even more preferably tyloxapol.
- the nonionic surfactant can be present in the aqueous suspension formulation of the present disclosure at a concentration of about 0.0001 w/v% to about 1 w/v%, preferably about 0.0005 w/v% to about 0.5 w/v%, more preferably about 0.001 w/v% to about 0.5 w/v%, particularly preferably about 0.005 w/v% to about 0.1 w/v%, and even more preferably about 0.01 w/v% to about 0.05 w/v%.
- an aqueous suspension having improved redispersibility can be provided by subjecting (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma-ceutically acceptable salt or solvate thereof, to heat treatment in the presence of a nonionic surfactant as a dispersant.
- (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide, or a pharma- ceutically acceptable salt or solvate thereof is sterilized with gamma radiation to provide an aqueous suspension having improved redispersibility.
- the redispersibility can be determined to be improved when the number of shaking cycles required for the redispersion described above is usually less than about 35 times, preferably about 30 times or less, more preferably about 25 times or less, and particularly preferably about 20 times or less.
- the measurement using the falling operation can be said to reproduce the evaluation when used by patients whose hands have weakened due to some kind of disability or condition and who have difficulty redispersing by shaking, so it can also be said to evaluate the redispersibility when used by such patients and elderly people.
- the redispersibility can be determined to be improved when the number of inversion operations required for the redispersion described above is typically less than about 50 times, and preferably less than about 45 times.
- redispersibility can be evaluated by any means, for example, by filling a container with the aqueous suspension of the present disclosure and measuring the number of times the container is shaken at any speed and/or amplitude, or inverted, until the suspended particles are redispersed.
- the average particle size (D 50 ) of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen- 1 -yl)acetamide or a pharma- ceutically acceptable salt or solvate thereof in the aqueous suspension of the present disclosure is not particularly limited, but can usually be about 1 ⁇ m to about 10 ⁇ m, preferably about 0.5 ⁇ m to about 5 ⁇ m, particularly preferably about 2 ⁇ m to about 4 ⁇ m, further preferably about 2.3 ⁇ m to about 3.3 ⁇ m, and most preferably about 2.1 ⁇ m to about 3.3 ⁇ m.
- redispersibility can be improved.
- the (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-(7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide or a pharma- ceutically acceptable salt or solvate thereof in the aqueous suspension of the present disclosure can be used in a crystalline form, and the crystalline form is not particularly limited as long as it does not affect redispersibility.
- type I crystals, type II crystals, type III crystals, or mixtures thereof of (E)-2-(7-trifluoromethylchroman-4-ylidene)-N-((7R)-7-hydroxy-5,6,7,8-tetrahydronaphthalen-1-yl)acetamide disclosed in WO 2018/221543, Japanese Patent No. 6230743, etc. can be used.
- the type I crystals are used.
- the aqueous suspension is an ophthalmic suspension, which may be provided as an ophthalmic injection solution, an eye drop, or an ophthalmic irrigation solution.
- the ophthalmic suspension may be provided in the form of a suspension in which the active ingredient is suspended in an aqueous solvent (e.g., phosphate buffered saline), or in the form of a solution in which the active ingredient is dissolved.
- an aqueous solvent e.g., phosphate buffered saline
- the aqueous suspension may be an eye drop for treating dry eye.
- Dry eye is a disease accompanied by subjective symptoms such as eye discomfort, and requires long-term and regular treatment.
- dry eye treatment drugs are generally set to be administered frequently, there is a strong demand for formulations that are easy for patients to adhere to and convenient to use.
- redispersibility is a major issue in eye drops for treating dry eye, and the provision of an aqueous suspension with excellent redispersibility as disclosed herein is of great value.
- aqueous suspensions of the present disclosure may be administered by any suitable route as determined by one of skill in the art, and may be formulated to be suitable for administration by a route selected from, but not limited to, ocular injection, topical application (including application to the eye), eye drops, intravenous injection, infusion, oral, parenteral, transdermal, etc.
- Aqueous suspensions of the present disclosure may contain any pharma- ceutically acceptable additives and/or excipients known in the art, including, but not limited to, viscosity agents, stabilizers, pH adjusting agents, buffers, and preservatives.
- Thickening agents are not particularly limited as long as they are pharma- ceutically acceptable, but examples include water-soluble polymers such as carboxyvinyl polymer, polyvinylpyrrolidone, polyethylene glycol, polyvinyl alcohol, xanthan gum, sodium chondroitin sulfate, and sodium hyaluronate; and cellulose-based polymers such as hydroxyethyl cellulose, methyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, and sodium carboxymethyl cellulose. These thickening agents may be used alone or in combination of two or more. From the viewpoint of redispersibility, cellulose-based polymers are preferred, and methyl cellulose is particularly preferred.
- the stabilizer is not particularly limited as long as it is pharma- ceutically acceptable, but examples include polyvinylpyrrolidone, monoethanolamine, cyclodextrin, dextran, ascorbic acid, tocopherol, dibutylhydroxytoluene, sulfite, sodium edetate, etc., and the content is preferably about 0.001 w/v% to about 1 w/v% of the total amount of the aqueous suspension.
- the pH adjuster is not particularly limited as long as it is pharma- ceutically acceptable, but examples include acids such as hydrochloric acid, acetic acid, boric acid, aminoethylsulfonic acid, and epsilon-aminocaproic acid; and alkalis such as sodium hydroxide, potassium hydroxide, borax, triethanolamine, monoethanolamine, sodium bicarbonate, and sodium carbonate.
- the content of the pH adjuster is, for example, 0 to about 20 w/v % of the total amount of the aqueous suspension.
- the aqueous suspension of the present disclosure can be mixed with a pH adjuster as described above as necessary to adjust the pH to generally about 4 to about 8, preferably about 5.0 to about 8.0, more preferably about 6.0 to about 8.0, particularly preferably about 7.0 to about 8.0, and even more preferably about 7.2 to about 7.8.
- the buffer used in the aqueous suspension of the present disclosure is not particularly limited as long as it is pharma- ceutically acceptable, and examples thereof include borate buffer, phosphate buffer, Tris buffer, citrate buffer, tartrate buffer, acetate buffer, amino acid buffer, etc., but from the viewpoint of redispersibility or stability of the aqueous suspension, borate buffer or phosphate buffer is preferred, and borate buffer is particularly preferred.
- the concentration of the buffering agent may be set appropriately within a range that can impart the desired buffering ability to the aqueous liquid preparation, and may be, for example, about 0.1 w/v% to about 10 w/v%, and from the viewpoint of improving redispersibility or stability, preferably about 1 w/v% to about 5 w/v%, and more preferably about 1 w/v% to about 3 w/v%.
- the boric acid buffer is not particularly limited as long as it is pharmaceutically acceptable, but examples thereof include boric acid and/or its salts.
- the boric acid is not particularly limited as long as it is pharmaceutically acceptable, but examples thereof include orthoboric acid, metaboric acid, tetraboric acid, etc.
- the salts of boric acid are not particularly limited as long as it is pharmaceutically acceptable, but examples thereof include metal salts such as sodium salt, potassium salt, calcium salt, magnesium salt, and aluminum salt; and organic amine salts such as triethylamine, triethanolamine, morpholine, piperazine, and pyrrolidine. Boric acid or its salts may be used alone or in combination of two or more.
- a preferred embodiment of the boric acid buffer is a combination of boric acid and borax.
- the ratio of boric acid to borax is not particularly limited, but for example, 10 to 300 parts by mass of borax per 100 parts by mass of boric acid, preferably 10 to 250 parts by mass, more preferably 30 to 100 parts by mass, and particularly preferably 40 to 60 parts by mass, can be mentioned.
- phosphate buffers include phosphoric acid and/or its salts.
- Phosphate salts are not particularly limited as long as they are pharma- ceutically acceptable, but include, for example, dialkali metal hydrogen phosphates such as disodium hydrogen phosphate and dipotassium hydrogen phosphate; alkali metal dihydrogen phosphates such as sodium dihydrogen phosphate and potassium dihydrogen phosphate; and trialkali metal phosphates such as trisodium phosphate and tripotassium phosphate.
- Phosphate salts may be in the form of solvates such as hydrates, for example, dodecahydrate in the case of disodium hydrogen phosphate, and dihydrate in the case of sodium dihydrogen phosphate.
- Phosphate buffers may be one of phosphoric acid and its salts, and may be used alone or in combination of two or more.
- phosphoric acid and its salts preferred are phosphates, more preferably at least one of dialkali metal hydrogen phosphate and alkali metal dihydrogen phosphate, and particularly preferably at least one of disodium hydrogen phosphate and sodium dihydrogen phosphate.
- Tris buffers include Tris (also known as trishydroxymethylaminomethane) and/or salts thereof. There is no particular limitation on the Tris salts as long as they are pharmaceutically acceptable, and examples of such salts include acetate, hydrochloride, maleate, and sulfonate.
- the Tris acid buffer may be one selected from Tris and its salts and used alone, or two or more may be used in combination.
- the Tris buffer specifically includes trometamol and/or salts thereof.
- the salts of trometamol so long as they are pharmaceutically acceptable, and examples of such salts include organic acid salts such as acetate; and inorganic acid salts such as hydrochloride and sulfonate.
- the Tris acid buffer may be one selected from trometamol and its salts and used alone, or two or more may be used in combination. Among trometamol and its salts, trometamol is preferred.
- citrate buffers include citric acid and/or its salts.
- the salts of citric acid are not particularly limited as long as they are pharma- ceutically acceptable, and examples include alkali metal salts such as sodium salts and potassium salts; and alkaline earth metal salts such as calcium salts and magnesium salts.
- the salts of citric acid may also be in the form of solvates such as hydrates.
- a citrate buffer one type may be selected from citric acid and its salts and used alone, or two or more types may be used in combination.
- citric acid and its salts preferred are salts of citric acid, more preferred are alkali metal salts of citric acid, and particularly preferred is sodium citrate.
- tartaric acid buffers include tartaric acid and/or its salts.
- Salts of tartaric acid are not particularly limited as long as they are pharma- ceutically acceptable, and examples include alkali metal salts such as sodium salts and potassium salts; and alkaline earth metal salts such as calcium salts and magnesium salts.
- the salts of tartaric acid may be in the form of solvates such as hydrates.
- a tartaric acid buffer one of tartaric acid and its salts may be selected and used alone, or two or more of them may be used in combination.
- acetate buffers include acetic acid and/or its salts.
- Salts of acetic acid are not particularly limited as long as they are pharma- ceutically acceptable, and examples include alkali metal salts such as sodium salts and potassium salts; alkaline earth metal salts such as calcium salts and magnesium salts; and ammonium salts. Salts of acetic acid may also be in the form of solvates such as hydrates.
- one of acetic acid and its salts may be selected and used alone, or two or more of them may be used in combination.
- amino acid buffers include acidic amino acids and/or their salts.
- acidic amino acids include aspartic acid and glutamic acid.
- salts of acidic amino acids include alkali metal salts such as sodium salts and potassium salts, but are not particularly limited as long as they are pharma- ceutical acceptable.
- an amino acid buffer one of the acidic amino acids and its salts may be selected and used alone, or two or more of them may be used in combination.
- the preservative is not particularly limited as long as it is pharma- ceutically acceptable, but examples include sorbic acid, potassium sorbate, paraoxybenzoic acid esters such as methyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, and butyl paraoxybenzoate, chlorhexidine gluconate, quaternary ammonium salts such as benzalkonium chloride, benzethonium chloride, and cetylpyridinium chloride, alkyl polyaminoethyl glycine, chlorobutanol, polyquad, polyhexamethylene biguanide, and chlorhexidine, and the content can be varied appropriately depending on the type, but may be, for example, about 0.0001 w/v% to about 0.2 w/v% based on the total amount of the aqueous suspension.
- the desired components can be dissolved or suspended in an aqueous solvent such as sterilized purified water, physiological saline, or a buffer solution (e.g., phosphate buffer, citrate buffer, or acetate buffer), or in a non-aqueous solvent such as a vegetable oil such as cottonseed oil, soybean oil, sesame oil, or peanut oil, and the osmotic pressure is adjusted to a predetermined level, followed by sterilization such as filtration sterilization.
- an aqueous solvent such as sterilized purified water, physiological saline, or a buffer solution (e.g., phosphate buffer, citrate buffer, or acetate buffer), or in a non-aqueous solvent such as a vegetable oil such as cottonseed oil, soybean oil, sesame oil, or peanut oil, and the osmotic pressure is adjusted to a predetermined level, followed by sterilization such as filtration sterilization.
- an aqueous solvent such as sterilized purified water, physiological saline
- the container for containing the aqueous suspension of the present disclosure is not particularly limited, and may be, for example, a glass container or a plastic container.
- the plastic container may be made of any material, such as polyester (polyethylene terephthalate, polyarylate), polycarbonate, polyethylene, or polypropylene, a mixture thereof, or a mixture of these and other materials.
- the container used in the present disclosure may be one used in the medical field or may be other than those.
- the container may be made of any material that meets the "Standard for Plastic Containers for Eye Drops" in Japan or other equivalent standards.
- the shape of the container used may be any shape, and generally any shape suitable for eye drops can be used.
- the aqueous suspension formulation of the present disclosure can be filled into any eye drop container commonly used in the medical field, for example, a polyethylene (preferably low density polyethylene) or polypropylene, preferably a colorless polypropylene container.
- a polyethylene preferably low density polyethylene
- polypropylene preferably a colorless polypropylene container.
- Short Protocols in Molecular Biology A Compendium of Methods from Current Protocols in Molecular Biology, Greene Pub. Associates; Ausubel, FM(1995).Short Protocols in Molecular Biology: A Compendium of Methods from Current Protocols in Molecular Biology, Greene Pub.
- the prepared suspension was stirred with a stirrer and 5 mL of each was dispensed into an eye dropper.
- the eye dropper was a colorless polyethylene container (the same container used for GatiFlo ophthalmic solution 0.3% (manufactured and sold by Senju Pharmaceutical Co., Ltd.)).
- Redispersibility evaluation Evaluation method by inversion operation It was confirmed that the suspended particles in the suspension filled in the eye drop container had completely settled.
- the inversion operation (the action of holding the container in the hand and turning it upside down) was repeated until the precipitate disappeared from the bottom and wall of the eye drop container and redispersed.
- the number of inversion operations required until redispersion was counted. The test was performed on three samples per formulation, and the average number of inversion operations was calculated.
- Evaluation method by shaking It was confirmed that the suspended particles in the suspension filled in the eye drop container had completely settled. Five shakings constituted one set, and shaking was repeated until the precipitate had disappeared from the bottom and walls of the eye drop container. Shaking was performed at a speed of 1.1 seconds per set, with a vertical width of 10 to 5 cm and one shaking being the period from shaking down to returning to the original position. The number of sets required until the particles were redispersed was counted and the number of shakings was calculated.
- Placement in container This was carried out in the same manner as in Test Example 1.
- Placement in container This was carried out in the same manner as in Test Example 1.
- Placement in container This was carried out in the same manner as in Test Example 1.
- Placement in container This was carried out in the same manner as in Test Example 1.
- Placement in container This was carried out in the same manner as in Test Example 1.
- Storage Storage was carried out under the following conditions: Storage conditions: 60 ⁇ 2°C (average 60.1°C), humidity level Storage period: Initial, 2 weeks, 4 weeks
- pH Measurement pH was measured according to the pH measurement method of the Japanese Pharmacopoeia General Test Method, that is, using a pH meter with a glass electrode.
- Osmolality was measured according to the Japanese Pharmacopoeia General Test Method for Osmolality Measurement (Osmolality Measurement Method).
- Example 15 the sample solution was prepared by diluting the solution 2-fold with acetonitrile.
- Example 16 2 mL of this product was accurately measured, and mobile phase B was added to dissolve the solution to make exactly 20 mL, which was used as the sample solution.
- about 20 mg of compound (1) was accurately measured, and mobile phase B was added to dissolve the solution to make exactly 20 mL, which was used as standard solution A.
- 2 mL of this liquid was accurately measured, and mobile phase B was added to make exactly 20 mL, which was used as standard solution B.
- Standard solution B was used in Example 15, and standard solution A was used in Example 16. 10 ⁇ L each of the sample solution and standard solution were accurately taken and tested by liquid chromatography under the following conditions.
- Test conditions Detector Ultraviolet absorption photometer (measurement wavelength: 250 nm)
- Column A commercially available column was used, which was a stainless steel tube having an inner diameter of 4.6 mm and a length of 250 mm packed with 5 ⁇ m octadecylsilylated silica gel for liquid chromatography.
- Column temperature constant temperature around 40°C
- Mobile phase A Add 1.79 g of disodium hydrogen phosphate dodecahydrate to 1000 mL of water and dissolve. Add phosphoric acid to this solution to adjust the pH to 6.5. Add 350 mL of acetonitrile to 650 mL of this solution and mix.
- Mobile phase B Acetonitrile/water mixture (80:20) Delivery of mobile phase: The mixing ratio of mobile phase A and mobile phase B was controlled by the linear concentration gradient shown in the table below.
- This disclosure can be used in the fields of medicine, pharmaceuticals, healthcare, biology, biochemistry, etc.
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Abstract
Description
(項目1)
熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤。
(項目1-1)
前記熱処理が、乾熱処理である、上記項目に記載の水性懸濁液剤。
(項目2)
前記熱処理が、滅菌工程内の処理である、上記項目に記載の水性懸濁液剤。
(項目2―1)
前記滅菌工程内の処理が、乾熱滅菌処理である、上記項目に記載の水性懸濁液剤。
(項目3)
非イオン界面活性剤をさらに含む、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目4)
前記熱処理が、約180℃より低い温度での熱処理を含む、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目5)
前記熱処理が、約100~約175℃での熱処理を含む、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目6)
前記熱処理が、約100~約170℃での熱処理を含む、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目7)
前記熱処理が、約150~約170℃での熱処理を含む、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目8)
前記熱処理が、約30分~約5時間行われる、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目9)
前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.0001w/v%~約1w/v%である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目10)
前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.001w/v%~約0.5w/v%である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目11)
前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.01w/v%~約0.05w/v%である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目12)
前記非イオン界面活性剤がチロキサポール、ポリソルベート、モノステアリン酸ポリエチレングリコール、およびポリオキシエチレン硬化ヒマシ油からなる群から選択される少なくとも1種である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目13)
前記非イオン界面活性剤がチロキサポールである、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目14)
前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の前記水性懸濁液剤中の濃度が約0.01w/v%~約5w/v%である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目15)
前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の前記水性懸濁液剤中の濃度が約0.3w/v%~約1w/v%である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目16)
熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物と、非イオン界面活性剤とを含む水性懸濁液剤であって、
前記熱処理が、約180℃より低い温度での熱処理を含み、
前記熱処理が、約30分~約5時間行われる、
前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の前記水性懸濁液剤中の濃度が約0.01w/v%~約5w/v%であり、
前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.01w/v%~約0.05w/v%である、水性懸濁液剤。
(項目17)
前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミドが、(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-((7R)-7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミドである、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目18)
熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤であって、該水性懸濁液剤中の(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物が、振盪操作で評価した場合に、約35回未満の振盪回数で懸濁粒子が再分散する、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目19)
熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤であって、該水性懸濁液剤中の(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物が、転倒操作で評価した場合に、約50回未満の転倒回数で懸濁粒子が再分散する、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目20)
熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤であって、該水性懸濁液剤中の(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の再分散性が向上している、水性懸濁液剤。
(項目21)
前記再分散性の向上が、振盪操作で評価した場合に、約35回未満の振盪回数で懸濁粒子が再分散することである、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目22)
前記再分散性の向上が、転倒操作で評価した場合に、約50回未満の転倒回数で懸濁粒子が再分散することである、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目23)
熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤であって、該水性懸濁液剤中の(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の平均粒子径(D50)が約1μm~約10μmである、水性懸濁液剤。
(項目24)
水性懸濁液剤を製造する方法であって、
(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を熱処理する工程と、
熱処理した該(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を、溶媒と混合する工程とを含む、
方法。
(項目25)
熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物。
(項目26)
前記水性懸濁液剤のpHが約4~約8である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目27)
前記水性懸濁液剤がプラスチック容器に収容されている、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目28)
前記プラスチック容器の素材がポリエチレンまたはポリプロピレンである、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B1)
ガンマ線滅菌処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤。
(項目B2)
非イオン界面活性剤をさらに含む、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B3)
ガンマ線滅菌処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物と、非イオン界面活性剤を含む水性懸濁液剤。
(項目B4)
前記ガンマ線滅菌処理が、約10~約50kGyでのガンマ線処理を含む、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B5)
前記ガンマ線滅菌処理が、約25kGyでのガンマ線処理を含む、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B6)
前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.0001w/v%~約0.1w/v%である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B7)
前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.001w/v%~約0.5w/v%である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B8)
前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.01w/v%~約0.05w/v%である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B9)
前記非イオン界面活性剤がチロキサポール、ポリソルベート、モノステアリン酸ポリエチレングリコール、およびポリオキシエチレン硬化ヒマシ油からなる群から選択される少なくとも1種である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B10)
前記非イオン界面活性剤がチロキサポールである、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B11)
前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の前記水性懸濁液剤中の濃度が約0.01w/v%~約5w/v%である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B12)
前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の前記水性懸濁液剤中の濃度が約0.3w/v%~約1w/v%である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B13)
ガンマ線滅菌処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物と、非イオン界面活性剤とを含む水性懸濁液剤であって、
前記ガンマ線滅菌処理が、約10~約50kGyでのガンマ線処理を含み、
前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の前記水性懸濁液剤中の濃度が約0.01w/v%~約5w/v%であり、
前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.01w/v%~約0.05w/v%である、水性懸濁液剤。
(項目B14)
前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミドが、(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-((7R)-7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミドである、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B15)
ガンマ線滅菌処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤であって、該水性懸濁液剤中の(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物が、振盪操作で評価した場合に、約35回未満の振盪回数で懸濁粒子が再分散する、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B16)
ガンマ線滅菌処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤であって、該水性懸濁液剤中の(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物が、転倒操作で評価した場合に、約50回未満の転倒回数で懸濁粒子が再分散する、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B17)
ガンマ線滅菌処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤であって、該水性懸濁液剤中の(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の再分散性が向上している、水性懸濁液剤。
(項目B18)
前記再分散性の向上が、振盪操作で評価した場合に、約35回以下の振盪回数で懸濁粒子が再分散することである、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B19)
前記再分散性の向上が、転倒操作で評価した場合に、約50回以下の転倒回数で懸濁粒子が再分散することである、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B20)
ガンマ線滅菌処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物。
(項目B21)
前記水性懸濁液剤のpHが約4~約8である、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B22)
前記水性懸濁液剤がプラスチック容器に収容されている、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目B23)
前記プラスチック容器の素材がポリエチレンまたはポリプロピレンである、上記項目のいずれか一項に記載の水性懸濁液剤。
(項目A1)
水性懸濁液剤を製造する方法であって、
(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を熱処理する工程と、
熱処理した該(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を、溶媒と混合する工程とを含む、方法。
(項目A1―1)
前記熱処理が、乾熱処理である、上記項目のいずれか一項に記載の方法。
(項目A2)
前記熱処理が、滅菌工程内の処理である、上記項目のいずれか一項に記載の方法。
(項目A2-2)
前記滅菌工程内の処理が、乾熱滅菌処理である、上記項目のいずれか一項に記載の方法。
(項目A3)
非イオン界面活性剤を混合する工程をさらに含む、上記項目のいずれか一項に記載の方法。
(項目A4)
前記熱処理が、約180℃より低い温度での熱処理を含む、上記項目のいずれか一項に記載の方法。
(項目A5)
前記熱処理が、約100~約175℃での熱処理を含む、上記項目のいずれか一項に記載の方法。
(項目A6)
前記熱処理が、約100~約170℃での熱処理を含む、上記項目のいずれか一項に記載の方法。
(項目A7)
前記熱処理が、約150~約170℃での熱処理を含む、上記項目のいずれか一項に記載の方法。
(項目A8)
前記熱処理が、約30分~約5時間行われる、上記項目のいずれか一項に記載の方法。
(項目A9)
前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.0001w/v%~約1w/v%である、上記項目のいずれか一項に記載の方法。
(項目A10)
前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.001w/v%~約0.5w/v%である、上記項目のいずれか一項に記載の方法。
(項目A11)
前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.01w/v%~約0.05w/v%である、上記項目のいずれか一項に記載の方法。
(項目A12)
前記非イオン界面活性剤がチロキサポール、ポリソルベート、モノステアリン酸ポリエチレングリコール、およびポリオキシエチレン硬化ヒマシ油からなる群から選択される少なくとも1種である、上記項目のいずれか一項に記載の方法。
(項目A13)
前記非イオン界面活性剤がチロキサポールである、上記項目のいずれか一項に記載の方法。
(項目A14)
前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の前記水性懸濁液剤中の濃度が約0.01w/v%~約5w/v%である、上記項目のいずれか一項に記載の方法。
(項目A15)
前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の前記水性懸濁液剤中の濃度が約0.3w/v%~約1w/v%である、上記項目のいずれか一項に記載の方法。
(項目A16)
前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミドが、(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-((7R)-7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミドである、上記項目のいずれか一項に記載の方法。
(項目A17)
前記水性懸濁液剤のpHが約4~約8である、上記項目のいずれか一項に記載の方法。
(項目A18)
前記水性懸濁液剤中の前記熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物が、振盪操作で評価した場合に、約35回未満の振盪回数で懸濁粒子が再分散する、上記項目のいずれか一項に記載の方法。
(項目A19)
前記水性懸濁液剤中の前記熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物が、転倒操作で評価した場合に、約50回未満の転倒回数で懸濁粒子が再分散する、上記項目のいずれか一項に記載の方法。
(項目A20)
前記水性懸濁液剤中の(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の再分散性が向上している、上記項目のいずれか一項に記載の方法。
(項目A21)
前記再分散性の向上が、振盪操作で評価した場合に、約35回以下の振盪回数で懸濁粒子が再分散することである、上記項目のいずれか一項に記載の方法。
(項目A22)
前記再分散性の向上が、転倒操作で評価した場合に、約50回以下の転倒回数で懸濁粒子が再分散することである、上記項目のいずれか一項に記載の方法。
(項目A23)
前記水性懸濁液剤中の(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の平均粒子径が約1μm~約10μmである、上記項目のいずれか一項に記載の方法。
(項目A24)
前記水性懸濁液剤がプラスチック容器に収容されている、上記項目のいずれか一項に記載の方法。
(項目A25)
前記プラスチック容器の素材がポリエチレンまたはポリプロピレンである、上記項目のいずれか一項に記載の方法。
(項目C1)
水性懸濁液剤を製造する方法であって、
(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物をガンマ線処理する工程と、
ガンマ線処理した該(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を、溶媒と混合する工程と
を含む、方法。
本明細書において、「約」とは、特に断らない限り、後に続く数値の±10%を意味する。
以下に本開示の好ましい実施形態を説明する。以下に提供される実施形態は、本開示のよりよい理解のために提供されるものであり、本開示の範囲は以下の記載に限定されるべきでない。したがって、当業者は、本明細書中の記載を参酌して、本開示の範囲内で適宜改変を行うことができることは明らかである。また、本開示の以下の実施形態は単独でも使用されあるいはそれらを組み合わせて使用することができる。
本開示の一局面において、熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤が提供され得る。
(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物は、水に対する溶解性が低いため、非イオン界面活性剤、イオン性界面活性剤または水溶性高分子等の分散剤の非存在下では、粒子が水面上に浮遊して、水性懸濁液の調製が不可能である。加えて、非イオン界面活性剤以外の分散剤を用いる場合には、実質的に薬学的に許容される濃度を超える濃度の分散剤を配合する必要があるため、水性懸濁液剤中には、非イオン界面活性剤の配合が不可欠である。本開示により、分散剤として非イオン界面活性剤が存在する状態において、(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物に対して熱処理を行うことによって、再分散性が向上している水性懸濁液剤を提供することができる。
本開示の一実施形態において、水性懸濁液剤は、眼科用懸濁液剤であり、眼注射液、点眼剤または眼灌流液として提供され得る。例えば、眼科用懸濁液剤は、水性の溶媒(例えば、リン酸緩衝生理食塩水)に有効成分を懸濁させた懸濁液の形態、或いは溶解させた液剤の形態で提供され得る。
本開示の水性懸濁液剤は、当該技術分野で公知の任意の薬学的に許容される添加物および/または賦形剤を含んでよい。添加剤としては、粘稠剤、安定化剤、pH調節剤、緩衝剤、および保存剤(防腐剤)が挙げられるがこれらに限定されない。
本開示の水性懸濁液剤を収容する容器としては、特に限定されず、例えば、ガラス容器またはプラスチック容器等が挙げられる。プラスチック容器としては、ポリエステル(ポリエチレンテレフタレート、ポリアリレート)、ポリカーボネート、ポリエチレンまたはポリプロピレン、それらの混合物、それらとそれら以外の混合物などの任意の材料で形成され得る。本開示において用いられる容器は、医療分野で用いられるものであってもよく、それ以外であってもよい。一つの実施形態では、日本国における「点眼剤用プラスチック容器の規格」またはその他の等価の規格に合致しうる任意の材質で形成されることができる。
本明細書において用いられる分子生物学的手法、生化学的手法、微生物学的手法は、当該分野において周知であり慣用されるものであり、例えば、Sambrook J.et al.(1989).Molecular Cloning: A Laboratory Manual, Cold Spring Harborおよびその3rd Ed.(2001); Ausubel, F.M.(1987).Current Protocols in Molecular Biology, Greene Pub. Associates and Wiley-Interscience; Ausubel, F.M.(1989).Short Protocols in Molecular Biology: A Compendium of Methods from Current Protocols in Molecular Biology, Greene Pub. Associates and Wiley-Interscience; Innis, M. A. (1990).PCR Protocols: A Guide to Methods and Applications, Academic Press; Ausubel, F.M.(1992).Short Protocols in Molecular Biology: A Compendium of Methods from Current Protocols in Molecular Biology, Greene Pub. Associates; Ausubel, F.M.(1995).Short Protocols in Molecular Biology: A Compendium of Methods from Current Protocols in Molecular Biology, Greene Pub. Associates; Innis ,M.A. et al.(1995).PCR Strategies, Academic Press; Ausubel, F.M.(1999).Short Protocols in Molecular Biology: A Compendium of Methods from Current Protocols in Molecular Biology, Wiley, and annual updates; Sninsky, J.J.et al.(1999).PCR Applications: Protocols for Functional Genomics, Academic Press、Gait, M.J.(1985).Oligonucleotide Synthesis: A Practical Approach, IRL Press; Gait, M.J.(1990).Oligonucleotide Synthesis: A Practical Approach, IRL Press; Eckstein, F.(1991).Oligonucleotides and Analogues: A Practical Approach, IRL Press; Adams, R.L. et al.(1992).The Biochemistry of the Nucleic Acids, Chapman & Hall; Shabarova, Z. et al.(1994).Advanced Organic Chemistry of Nucleic Acids, Weinheim; Blackburn, G.M. et al.(1996).Nucleic Acids in Chemistry and Biology, Oxford University Press; Hermanson, G.T.(I996).Bioconjugate Techniques, Academic Press、別冊実験医学「遺伝子導入&発現解析実験法」羊土社、1997等に記載されている。これらは本明細書において関連する部分(全部であり得る)が参考として援用される。
懸濁液の調製
表1および2に示す組成に従って、基剤溶液を調製し、そこに化合物(1)を加えて、撹拌分散させて懸濁液を得た。チロキサポールはAMRI Rensselaer社製(Curia Global,Inc.)のものを使用した。化合物(1)は、前記のI型結晶を使用した。
調製した懸濁液をスターラー撹拌しながら5mLずつ採取し、点眼容器に充填した。点眼容器はポリエチレンからなる無色容器(ガチフロ点眼液0.3%(製造販売元:千寿製薬株式会社)に使用されている容器)を採用した。
転倒操作による評価方法:点眼容器に充填された懸濁液中の懸濁粒子が完全に沈降していることを確認した。転倒操作(容器を手に持って上下を反転させる動作)を行い、点眼容器の底面および壁面から沈殿が消失し、再分散するまで繰り返した。なお、容器を1秒/回の速度で、上下に180°反転した後に再度180°反転して正立状態とする操作を転倒回数1回とした。再分散するまでに要した転倒操作数をカウントした。試験は1処方あたり3検体で行い、平均した転倒操作回数を算出した。
沈殿が再分散するまで検体を振盪した後、レーザー回折型粒度分布測定装置(SALD-2300)の分散槽に検体を約1mL滴下した。2分間、超音波処理を行った後に粒度分布を測定し、D10、D50、D90の値を粒子径とした。
結果を表1および2に示す。150~170℃で熱処理した化合物(1)を分散させた、水性懸濁液剤は再分散性が良好であった。
懸濁液の調製
表3に示す組成に従って、基剤溶液を調製し、そこに化合物(1)を加えて、撹拌分散させて懸濁液を得た。
試験例1と同様にして行った。
試験例1と同様にして行った。
結果を表3に示す。熱処理時間が、30分~5時間で、水性懸濁液剤は再分散性が良好であった。
懸濁液の調製
表4に示す組成に従って、基剤溶液を調製し、そこに化合物(1)を加えて、撹拌分散させて懸濁液を得た。チロキサポールはAMRI Rensselaer社製(Curia Global,Inc.)、ポリソルベート80は日油製、モノステアリン酸ポリエチレングリコール40(MYS-40)は日本サーファクタント工業製、ポリオキシエチレン硬化ヒマシ油60は日本サーファクタント工業製のものを使用した。化合物(1)は、前記のI型結晶を使用した。
試験例1と同様にして行った。
試験例1と同様にして行った。
結果を表4に示す。いずれの非イオン性界面活性剤を使用した場合、160℃で熱処理した化合物(1)を分散させた、水性懸濁液剤は再分散性が良好であった。
懸濁液の調製
表5に示す組成に従って、基剤溶液を調製し、そこに化合物(1)を加えて、撹拌分散させて懸濁液を得た。チロキサポールはAMRI Rensselaer社製(Curia Global,Inc.)のものを使用した。化合物(1)は、前記のI型結晶を使用した。
試験例1と同様にして行った。
試験例1と同様にして行った。
結果を表5に示す。チロキサポール濃度が0.01%~0.04%の範囲で、水性懸濁液剤は再分散性が良好であった。
懸濁液の調製
表6に示す組成に従って、基剤溶液を調製し、そこに化合物(1)を加えて、撹拌分散させて懸濁液を得た。チロキサポールはAMRI Rensselaer社製(Curia Global,Inc.)のものを使用した。化合物(1)は、前記のI型結晶を使用した。比較例7は約25kGyの電子線を照射した化合物(1)を、実施例13は約25kGyのガンマ線を照射した化合物(1)を用いた。実施例14は160℃、2時間の条件で乾熱滅菌処理した化合物(1)を用いた。
試験例1と同様にして行った。
試験例1と同様にして行った。
結果を表6に示す。ガンマ線処理した化合物(1)を分散した、水性懸濁液剤は再分散性が良好であった。
懸濁液の調製
表7に示す組成に従って、懸濁液を得た。チロキサポールはAMRI Rensselaer社製(Curia Global,Inc.)のものを使用した。化合物(1)は、前記のI型結晶を使用した。
試験例1と同様にして行った。
保管は以下の条件でおこなった。
保管条件:60±2℃(平均60.1℃)、成り行き湿度
・ 保管期間:開始時、2週間、4週間
日局 一般試験法pH測定法により、pHを測定した。すなわち、ガラス電極によるpHメータを用いて測定した。
日局 一般試験法 浸透圧測定法(オスモル濃度測定法)により、浸透圧を測定した。
実施例15はアセトニトリルで2倍希釈したものを試料溶液とした。実施例16は本品 2mLを正確に量り、移動相Bを加えて溶かし正確に20mLとし、試料溶液とした。別に、化合物(1)約20mgを精密に量り、移動相Bを加えて溶かし正確に20mLとし、標準溶液Aとした。この液2mLを正確に量り、移動相Bを加えて正確に20mLとし、標準溶液Bとした。実施例15は標準溶液Bを、実施例16は標準溶液Aを使用した。試料溶液及び標準溶液10μLずつを正確にとり、次の条件で液体クロマトグラフィーにより試験を行った。
検出器:紫外吸光光度計(測定波長:250nm)
カラム:内径4.6mm、長さ250mmのステンレス管に5μmの液体クロマトグラフィー用オクタデシルシリル化シリカゲルを充てんした市販カラムを使用した。
カラム温度:40℃付近の一定温度
移動相A:水1000mLにリン酸水素二ナトリウム・十二水和物1.79gを加えて溶かす。この液にリン酸を加えてpHを6.5に調整する。この液650mLにアセトニトリル350mLを加えて混合する。
移動相B:アセトニトリル/水混液(80:20)
移動相の送液:移動相A及び移動相Bの混合比率を下表の直線濃度勾配で制御した。
試験例1と同様にして行った。
n=3で行った結果を表8に示す。いずれも4週間の保管安定性が示された。
以上のように、本開示の好ましい実施形態を用いて本開示を例示してきたが、本開示は、請求の範囲によってのみその範囲が解釈されるべきであることが理解される。本明細書において引用した特許、特許出願および他の文献は、その内容自体が具体的に本明細書に記載されているのと同様にその内容が本明細書に対する参考として援用されるべきであることが理解される。本出願は、日本国特許庁に2022年9月29日に出願された特願2022-156060に対して優先権主張をするものであり、本願はその全体が参考として援用される。
Claims (17)
- 熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤。
- 前記熱処理が、滅菌工程内の処理である、請求項1に記載の水性懸濁液剤。
- 非イオン界面活性剤をさらに含む、請求項1または2のいずれか一項に記載の水性懸濁液剤。
- 前記熱処理が、約180℃より低い温度での熱処理を含む、請求項1~3のいずれか一項に記載の水性懸濁液剤。
- 前記熱処理が、約100~約175℃での熱処理を含む、請求項1~4のいずれか一項に記載の水性懸濁液剤。
- 前記熱処理が、約150~約170℃での熱処理を含む、請求項1~5のいずれか一項に記載の水性懸濁液剤。
- 前記熱処理が、約30分~約5時間行われる、請求項1~6のいずれか一項に記載の水性懸濁液剤。
- 前記非イオン界面活性剤の前記水性懸濁液剤中の濃度が約0.0001w/v%~約1w/v%である、請求項3~7のいずれか一項に記載の水性懸濁液剤。
- 前記非イオン界面活性剤がチロキサポール、ポリソルベート80、モノステアリン酸ポリエチレングリコール、およびポリオキシエチレン硬化ヒマシ油からなる群から選択される少なくとも1種である、請求項3~8のいずれか一項に記載の水性懸濁液剤。
- 前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の前記水性懸濁液剤中の濃度が約0.01w/v%~約5w/v%である、請求項1~9のいずれか一項に記載の水性懸濁液剤。
- 前記(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミドが、(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-((7R)-7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミドである、請求項1~10のいずれか一項に記載の水性懸濁液剤。
- 熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤であって、該水性懸濁液剤中の(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の再分散性が向上している、水性懸濁液剤。
- 前記再分散性の向上が、振盪操作で評価した場合に、約35回未満の振盪回数で懸濁粒子が再分散することである、請求項12に記載の水性懸濁液剤。
- 前記再分散性の向上が、転倒操作で評価した場合に、約50回未満の転倒回数で懸濁粒子が再分散することである、請求項12または13に記載の水性懸濁液剤。
- 熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を含む水性懸濁液剤であって、該水性懸濁液剤中の(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物の平均粒子径(D50)が約1μm~約10μmである、水性懸濁液剤。
- 水性懸濁液剤を製造する方法であって、
(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を熱処理する工程と、
熱処理した該(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物を、溶媒と混合する工程とを含む、
方法。 - 熱処理した(E)-2-(7-トリフルオロメチルクロマン-4-イリデン)-N-(7-ヒドロキシ-5,6,7,8-テトラヒドロナフタレン-1-イル)アセトアミド、またはその薬学的に許容可能な塩もしくは溶媒和物。
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| EP23872568.3A EP4595959A1 (en) | 2022-09-29 | 2023-09-28 | Sterilized heterocyclidene-acetamide-derivative-containing suspension |
| KR1020257013712A KR20250065723A (ko) | 2022-09-29 | 2023-09-28 | 멸균 처리한 헤테로시클리덴아세트아미드 유도체 함유 현탁액 |
| JP2024521732A JP7589393B2 (ja) | 2022-09-29 | 2023-09-28 | 滅菌処理したヘテロシクリデンアセトアミド誘導体含有懸濁液 |
| CN202380069446.7A CN119997937A (zh) | 2022-09-29 | 2023-09-28 | 含有灭菌的杂环亚基乙酰胺衍生物的悬浮液 |
| JP2024198093A JP2025024083A (ja) | 2022-09-29 | 2024-11-13 | 滅菌処理したヘテロシクリデンアセトアミド誘導体含有懸濁液 |
| MX2025003326A MX2025003326A (es) | 2022-09-29 | 2025-03-20 | Suspension esterilizada que contiene un derivado de heterociclideno acetamida |
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| EP4595959A1 (en) | 2025-08-06 |
| CN119997937A (zh) | 2025-05-13 |
| JPWO2024071348A1 (ja) | 2024-04-04 |
| JP7589393B2 (ja) | 2024-11-25 |
| MX2025003326A (es) | 2025-05-02 |
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| JP2025024083A (ja) | 2025-02-19 |
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