WO2005020960A1 - 直腸投与用製剤 - Google Patents
直腸投与用製剤 Download PDFInfo
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- WO2005020960A1 WO2005020960A1 PCT/JP2004/012870 JP2004012870W WO2005020960A1 WO 2005020960 A1 WO2005020960 A1 WO 2005020960A1 JP 2004012870 W JP2004012870 W JP 2004012870W WO 2005020960 A1 WO2005020960 A1 WO 2005020960A1
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- drug
- particles
- water
- suppository
- rectal administration
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/13—Amines
- A61K31/135—Amines having aromatic rings, e.g. ketamine, nortriptyline
-
- 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
- A61K31/16—Amides, e.g. hydroxamic acids
- A61K31/165—Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide
-
- 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
- A61K31/16—Amides, e.g. hydroxamic acids
- A61K31/165—Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide
- A61K31/167—Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide having the nitrogen of a carboxamide group directly attached to the aromatic ring, e.g. lidocaine, paracetamol
-
- 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
- A61K31/355—Tocopherols, e.g. vitamin E
-
- 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
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/4164—1,3-Diazoles
- A61K31/4166—1,3-Diazoles having oxo groups directly attached to the heterocyclic ring, e.g. phenytoin
-
- 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
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/57—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone
- A61K31/573—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone substituted in position 21, e.g. cortisone, dexamethasone, prednisone or aldosterone
-
- 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
- A61K9/0031—Rectum, anus
-
- 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
- A61K9/02—Suppositories; Bougies; Bases therefor; Ovules
-
- 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
- A61K9/06—Ointments; Bases therefor; Other semi-solid forms, e.g. creams, sticks, gels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P23/00—Anaesthetics
- A61P23/02—Local anaesthetics
-
- 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
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/5005—Wall or coating material
- A61K9/5021—Organic macromolecular compounds
- A61K9/5036—Polysaccharides, e.g. gums, alginate; Cyclodextrin
- A61K9/5042—Cellulose; Cellulose derivatives, e.g. phthalate or acetate succinate esters of hydroxypropyl methylcellulose
- A61K9/5047—Cellulose ethers containing no ester groups, e.g. hydroxypropyl methylcellulose
Definitions
- the present invention relates to a preparation for rectal administration, and more particularly to a suppository and an injectable ointment in which a drug stays in an affected rectum and the release of the drug is controlled.
- suppositories are prepared by mixing or dissolving a drug in a base and shaping it into a predetermined shape.
- the temperature causes the base to dissolve or to dissolve in the secretions, releasing the drug and absorbing it from the mucous membrane.
- the drug is gradually released from the suppository for a long period of time, it is possible to reduce the side effects due to the drug release transition 11 ⁇ annoyance due to frequent administration. Accordingly, some release suppositories have been developed (for example, see JP-A-5-238930 and Japanese Patent No. 2702938).
- JP-A-5-238930 discloses a drug releasable carrier in which a drug is adsorbed on a porous fine particle carrier, and then a mixture of a higher fatty acid glyceride and a water-soluble polymer such as polyethylene glycol is adsorbed. It is disclosed for use in suppositories.
- a drug and a water-soluble polymer such as hydroxyalkyl cellulose are mixed to form a solid preparation such as a granule, and the surface of the solid preparation is coated and dispersed in a base. It is disclosed that a releasable suppository can be produced.
- the suppository described in Japanese Patent Application Laid-Open No. 5-238930 is administered rectally for the purpose of local treatment (local action) of hemorrhoidal disease, etc., the suppository dissolves at body temperature or secretion, and the drug is not treated.
- the drug-releasing carrier elutes into the rectum, but the viscosity of the polyethylene glycol adsorbed on the drug-releasing carrier surface is so low that the drug-releasing carrier adheres and stays on the mucous membrane of the affected rectum sufficiently. Over time, the drug-releasing carrier migrates to the upper rectum. Therefore, the amount of the drug release carrier in the affected part of the rectum decreases, There is a problem that the amount of drug directly released from the excretion-release carrier to the affected rectum decreases, and the drug effect cannot be sufficiently exerted.
- Patent No. 2702938 discloses that a suppository can be produced by coating and dispersing a granular solid preparation, but does not disclose a coating agent at all. Does not manufacture suppositories in which the coated solid preparation is dispersed. Moreover, the coating on the surface of the solid preparation is for controlling the drug release rate, and does not mean that the solid preparation is retained at the affected part of the rectum.
- JP-A-5-238930 discloses a method in which isotonic IJ in which the granular coated solid preparation of Patent No. 2702938 is dispersed is used.
- the solid preparation elutes from the suppository into the rectum, but the solid preparation moves to the upper part of the rectum, and the amount of the solid preparation present in the affected part of the rectum decreases.
- the amount of drug directly released to the affected area is reduced, and it is not possible to exert its full efficacy.
- the solid preparation dispersed in the suppository of Patent No. 2702938 is As described above, for example, granules are mentioned, and have a particle size of about 500 to 140. With such a large particle size, the solid preparation released by dissolving the suppository creates a large gap in the entire affected area of the rectum and diffuses, and the affected area where no solid preparation is present is widely generated. There is a problem that the drug cannot be released uniformly throughout. In addition, since the particle size of the solid preparation is large, one solid preparation particle has a smaller surface area than a fine particle preparation in which the particle size is reduced so as to have the same amount of drug as one solid preparation particle and the number is increased.
- the present invention has been made in view of such problems of the prior art, and has as its object the purpose of the present invention is to allow drug-carrying particles to adhere to and stay in an affected area, where the drug is released and the medicinal effect in the affected area.
- An object of the present invention is to provide a preparation for rectal administration that can sufficiently exhibit the above-mentioned effects, suppress side effects of the drug, and reduce the number of times of administration of the preparation.
- Another object of the present invention is to provide a preparation for rectal administration in which the drug-carrying particles adhere and stay in the lower part of the rectum, where the drug is released, and are not affected by the effect of the first passage through the liver.
- Still another object of the present invention is to provide a method for uniformly depositing and holding drug-loaded particles over the entire affected rectum.
- An object of the present invention is to provide a preparation for rectal administration that releases the drug throughout the affected area while releasing the drug.
- Still another object of the present invention is to provide a suppository and the like in which the coating layer of the drug-carrying particles is not damaged during the production of the suppository, and the drug-carrying particles are uniformly dispersed in the base material so as to be difficult to be broken. It is in.
- the inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, by allowing a porous microparticle carrier to carry a drug and covering the drug-supported particles with a water-soluble polymer having a certain viscosity. Further, they have found that the above problems can be solved by setting the particle size of the coated drug-supporting particles to a certain size, and have completed the present invention. That is, the present invention provides a preparation for rectal administration in which coated drug-supporting particles are dispersed in a base, wherein the coated drug-supporting particles are a 20% by mass aqueous solution of a drug-supported porous fine particle carrier. And a water-soluble polymer having a viscosity of 0.1 to 10.0 Pascal second under the condition of 37 ° C.
- the drug-carrying particles preferably have a particle size of 0.1 to 300 ⁇ m.
- FIG. 1 is a photograph showing the retention of the suppositories of Example 1 and Comparative Example 1 on a cellulose tube.
- FIG. 2 is a graph showing the time-dependent changes in lidocaine hydrochloride concentration in rat rectal tissues after administration of the suppositories of Example 1 and Comparative Example 1 to rats.
- the porous fine particle carrier used in the present invention is a fine particle having at least a large number of fine pores on its surface, and has a structure such as a particle aggregation type, a bubble dispersion type, and a network type. May be displaced, has a particle size of about 0.1 to 2 0 0 ⁇ M, specific surface area 1 0 0 ⁇ 1 0 0 0 m 2 / g, oil-absorbing ability 0. The 5 ⁇ 8. O mL / g , the main component Is preferably a citric acid, but is not particularly limited as long as the drug can be supported.
- Ta ⁇ and of particulate carrier to be used in the present invention has a particle size from 0.1 to 1 0 0 ⁇ M, specific surface area 2 0 0 ⁇ 7 0 0 m 2 Zg, oil-absorbing ability from 2.0 to 7. Things O MLZg Is more preferred. Specific examples include light anhydrous silicic acid, magnesium aluminate, magnesium silicate, and hydrous silica dioxide. More preferred are light silicic anhydride and magnesium metasilicate aluminate. These porous fine particle carriers are commercially available and easily available. Further, the porous fine particle carrier may be used alone or in combination of two or more.
- Drugs carried on the porous fine particle carrier include, but are not limited to, corticosteroids, local anesthetics, anti-inflammatory, antipruritic, wound healing agents, vitamins, sulfa drugs, bactericides, antihistamines, and the like.
- corticosteroids include prednisolone acetate, prednisolone acetate, hydrocortisone acetate, hydrocortisone, cortisone acetate, cortisone, dexamethasone acetate, dexamethasone, hydrocortisone butyrate, prednisolone valerate or triamcinolone acetate.
- local anesthetics include lidocaine hydrochloride, lidocaine, dibuforce hydrochloride, dibucaine, proforce hydrochloride, proforce in, tetracaine hydrochloride, tetracaine, prochlorinate hydrochloride, and procaine hydrochloride.
- bupiva force in hydrochloride bupiva force in, aminoethyl benzoate or oxesazein.
- IJ Antiphlogistic, antipruritic, wound healing Specific examples of IJ include indomethacin, ketoprofen, diclofenadium, glycyrrhetinic acid, dimethylisopropylazulene, ikuyumol, camphor, crotamiton, lysozyme chloride, d -Camphor, ( ⁇ -camphor, sycamore cinnamon seed extract, hamamelis extract, sicon extract, seaweed oil, dl-menthol, 1-menthol, eucalyptus oil, allantoin or aluminum 'chlorhydroxyline toinate.
- Coferol As a specific example of Coferol, tocopherol, ergocalcifenol, retinol palmitate, retinol acetate, pyridoxine hydrochloride, pyridoxamine hydrochloride, pyridoxal phosphate, riboflavin, riboflavin butyrate, vitamin A oil, strong ffF oil or moonlight oil.
- Specific examples of the sulfa drug include sulfiadiazine, sulfisomidine, and homosulfamine.
- disinfectants include isopropylmethylphenol, benzalkonium chloride, chlorhexidine hydrochloride, chlorhexidine gluconate solution, phenol, and cetylpyridinium chloride.
- vasoconstrictor examples include, for example, naphazoline hydrochloride, ephedrine hydrochloride, epinephrine hydrochloride, tetrahydrozoline hydrochloride, phenylephrine hydrochloride or dl-methylephedrine hydrochloride.
- antihistamines This example includes diphenhydramine hydrochloride, diphenhydramine, and chlorpheniramine maleate. These drugs are commercially available and readily available. Further, the drug may be used alone or in combination.
- the water-soluble polymer used in the present invention may be any of a natural polymer, a synthetic polymer, a biopolymer, an inorganic polymer, and the like, and a homopolymer, a copolymer, a block polymer, a copolymer, or the like. Good.
- the viscosity is 0.1 to 10.0 Pascal second, preferably 1.0 to 7.0 Pascal second, particularly preferably 1.5 to 5.0 Pa under a condition of 20% by mass aqueous solution and 37 ° C. 0 Pascal second.
- nonionic celluloses such as nonionic celluloses, vinyl polymers, starches, and the like can be used. Derivatives, natural polysaccharides, natural rubbers and proteins. Examples of nonionic celluloses include hydroxypropylcellulose, hydroxymethylpropylcellulose, carboxyethylcellulose, and methylcellulose.
- vinylinole polymer include polyvinylpyrrolidone, polyvinyl alcohol, carboxyvinyl polymer, and the like.
- starches and their derivatives include carboxymethyl starch, starch and the like.
- natural polysaccharides include xanthan gum, dextran, pullulan and the like.
- natural rubber include gum arabic, guar gum, locust veegum, and the like.
- proteins examples of the proteins include gelatin, casein, albumin and the like. More preferred is hydroxypropylcellulose. These water-soluble polymers are commercially available and easily available.
- the base used in the present invention is a lipophilic or hydrophilic base generally used as a suppository base.
- the lipophilic base include cocoa butter, lanolin fat and hard fat.
- hard fats include witepsol, sabocil, isocacao, and pharmacol.
- the hydrophilic base include polyethylene glycol, glycated gelatin, and macrogol. These may be used alone, or a mixture of a lipophilic base and a R-base may be used.
- Oil bases include fats and oils, fatty acids, higher alcohols, and fatty acid triglycerides.
- Ingredients for fats and oils ⁇ ⁇ ⁇ Examples of oils include olive oil, soybean oil, jojoba oil, nayu oil, laccase oil, castor oil, coconut oil, coconut oil, cacao oil, palm oil, sesame oil, camellia oil, Corn oil, hard ⁇ : oil, mokuro, carnauba wax, lanolin oil, miwa wax, squalane, sclaren, tallow, lard, egg yolk oil, whale wax, liquid paraffin, paraffin, petrolatum.
- Specific examples of fatty acids include oleic acid, Palmitic acid and stearic acid.
- Higher alcohol ingredients ⁇ Examples include ceanol and stearyl alcohol.
- An example of fatty acid triglyceride is panacet.
- corticosteroids for example, corticosteroids, local anesthetics, anti-inflammatory, antipruritic, wound healing agents, vitamins should be used as a base in order to exert their efficacy.
- additives and the like can be blended.
- rice preservatives and antioxidants for example, rice preservatives and antioxidants.
- the preservative include alkyl polyoxybenzoate and sorbic acid.
- antioxidant include dibutylhydroxytoluene.
- an additive for controlling the drug release property may be blended in the particles or on the surface of the particles.
- a sustained-release function can be imparted to the preparation.
- the additive include an aminoalkyl methacrylate copolymer RS (trade name: Eudragit RS: manufactured by Rohm Pharma), ethyl cellulose (trade name: Ethocel: Dow Chem.), And the like.
- water-dispersible drug-releasing control agents such as aminoalkyl methacrylate copolymer RS aqueous dispersion (trade name: Eudragit RS30D: manufactured by Rohma Pharma), ethylcell An aqueous dispersion (trade name: Aquacoat: manufactured by Asahi Kasei Kogyo) can also be used.
- the above-mentioned coated drug-supported particles in which the drug is supported on a porous fine particle carrier and coated with the water-soluble polymer preferably have a particle size of 0.1 to 300 ⁇ m, more preferably. 0.1 to 100 ⁇ m, particularly preferably 0.1 to 50 ⁇ m.
- the coated drug-carrying particles are small particles having a particle size of 300 ⁇ m or less, the water-soluble polymer diffuses evenly into the mucous membrane of the affected part of the rectum and adheres and stays on the mucous membrane by the water-soluble polymer as compared with the large particles. In combination, many drugs can be released uniformly throughout the affected area. When the particle size exceeds 300 m, suppositories can be dispersed in the base described below. During production, the coating layer of the coated drug-carrying particles may be damaged during suppository production, or the coated drug-carrying particles may be more likely to settle, resulting in uneven distribution of the coated drug-carrying particles in the suppository, resulting in body temperature.
- the amount of the coated drug-supported particles eluted may change or the suppository may be easily broken. Further, even in the case of an injectable ointment, the coated drug-supporting particles are less likely to be uniformly dispersed in the base of the injectable ointment.
- a drug and a porous fine particle carrier are mixed, for example, in a mass ratio of 1.0: 0.1 to: 10.0, preferably 1.0: 0.5 to 5.0, mixed, and mixed.
- the drug is supported on the hydrophilic fine particle carrier.
- the drug is dissolved in water or an organic solvent such as ethanol or a liquid mixture of water and an organic solvent such as ethanol in order to adsorb the drug in the pores of the porous fine particle carrier. It is preferred to mix with.
- the drug is dissolved in a range from the amount of the solvent that can sufficiently dissolve the drug to the amount of the solvent that can be adsorbed to the porous fine particle carrier, and the drug solution is mixed with the porous fine particle carrier.
- the mixture is sieved with a sieve of 300 m or less and dried at a temperature below the melting point of the loaded drug or within a temperature range that does not cause decomposition.
- the obtained drug-carrying particles and a water-soluble polymer having a specific viscosity are mixed, for example, in a mass ratio of 1.0: 0.01 to: L.0, preferably 1.0: 0.05 to 0: 0. .5, and coat drug-carrying particles with water-soluble polymer.
- the water-soluble polymer is dissolved in an organic solvent such as water or ethanol or a mixed solution of water and an organic solvent such as ethanol. It is preferable to mix with the drug carrying particles.
- the water-soluble polymer is dissolved in a range from the amount of the solvent in which the water-soluble polymer becomes uniform to the amount of the solvent that can be adsorbed to the porous fine particle carrier, and the water-soluble polymer solution and the porous fine particle carrier are dissolved.
- coated drug-carrying particles are blended in an amount of, for example, 1 to 30% by mass, preferably 5 to 20% by mass with respect to the base, mixed, molded into a suppository, or In the case of injectable ointments, fill the container for injection in a semi-solid state.
- two or more kinds of coated drug-carrying particles having different drugs may be blended with the base.
- suppositories it can be produced according to the dissolution method and the cold pressure method in the suppository formulation described in the Japanese Pharmacopoeia.
- a desired amount of a drug different from or the same as the drug of the coated drug-carrying particles, or a commonly blended additive is added, mixed, poured into a mold, cooled, and solidified.
- the powder or the coated drug-carrying particles and the base are mixed in the above amounts, uniformly powdered, and then molded by a suppository press-fitting machine or the like.
- Injectable ointments can be manufactured according to the ointment preparation method described in the Japanese Pharmacopoeia. If necessary, the desired amount of the drug may be different from or the same as the drug in the coated drug-supported particles, or in general. It can be manufactured by mixing the additives to be blended, adding the remaining base material, stirring and kneading until the quality is uniform.
- the following water-soluble polymers were subjected to a viscosity test and an adhesion test.
- Hydroxypropylcellulose H.P.C-M, H.P.C-L and H.P.C-SSL: manufactured by Nippon Soda
- Methylcellulose (M.C SM-15: manufactured by Shin-Etsu Chemical)
- Polyvinylpyrrolidone (P.V.P-K90 and P.V.P-K25: BASF)
- the water-soluble polymer was dissolved in water to prepare a 20% by mass aqueous solution, and the viscosity was measured.
- the viscosity was measured using an E-type viscometer (manufactured by Tokyo Keiki Co., Ltd.) at 37 ° C for a 20% by mass aqueous solution of a water-soluble polymer (Pascal second). The results are shown in Table 1.
- a certain amount (0.2 g) of the water-soluble polymer is evenly distributed on a cellulose membrane (VISKING SEAMLEEE CELLULOSE TUBE: HANDEX) cut into 5 x 5 cm pieces moistened with purified water at 37 ° C. And allowed to stand for 5 minutes. After standing, the cellulose membrane was vigorously shaken up and down 10 times in purified water (37 ° C) to wash the cellulose membrane. After washing, the cellulose membrane was dried under reduced pressure (70 ° C., 76 c Hg for 24 h), and the remaining amount W 2 of the water-soluble polymer on the cellulose membrane was determined to calculate the adhesion rate according to the following equation. The results are shown in Table 1.
- Adhesion rate (%) (-weight of dried cellulose membrane) / Wi X lOO
- Reference example :! 77 had higher viscosity and correspondingly higher adhesion.
- the water-soluble polymer of Reference Examples 1 to 7 having high viscosity is applied to the rectal mucosa, it adheres well to the rectal mucosa, and thus is suitable as a coating agent for the drug-loaded particles used in the present invention.
- the suppositories and injectable ointments of Examples 1 to 8 were produced by the following methods.
- hydroxypropyl cellulose HP C-L: Nippon Soda
- hydroxypropyl cellulose (Reference Example 5) (20% by mass aqueous solution and 37 ° C). (Viscosity of 3.430 Pascal seconds).
- Example 1 The hydroxypropyl cellulose (Reference Example 5) (20% by mass aqueous solution and 37 ° C). (Viscosity of 3.430 Pascal seconds).
- lidocaine hydrochloride a drug supported on a porous microparticle carrier
- a porous microparticle carrier a drug supported on a porous microparticle carrier
- light caustic anhydride as a porous microparticle carrier
- the mixture was thoroughly mixed with 80 mg of 0 m 2 Zg, oil absorption capacity of 3.4 mL / g), sieved with a Japanese No. 50 standard sieve, and air-dried at 70 ° C for 360 minutes.
- the obtained drug-carrying particles 140 mg
- an ethanol solution of a water-soluble polymer obtained by dissolving 20 m of hydroxypropylcellulose (HP C-L: Nippon Soda) in 120 mg of 95% ethanol were thoroughly mixed. After sieving through a sieve to obtain an average particle diameter of 10 ⁇ m, the particles were dried by blowing air at 70 ° C. for 360 minutes to obtain coated drug-carrying particles.
- Example 3 The obtained drug-carrying particles (140 mg) and a water-soluble high-molecular-weight ethanol solution obtained by dissolving 20 mg of hydroxypropylcellulose (HPC-L: Nippon Soda) in 120 mg of 95% ethanol are mixed well, and a No. 50 sieve is used. After the mixture was sieved with a filter so as to have an average particle diameter of 10 ⁇ m, the particles were dried by blowing at 70 ° C. for 360 minutes to obtain coated drug-carrying particles. Hereinafter, the same operation as in Example 1 was repeated to obtain a suppository of the present invention.
- Example 3 Example 3
- lidocaine hydrochloride a drug supported on the porous microparticle carrier
- light caustic anhydride Adsolida 101: Freund Sangyo, Freund Sangyo, particle size 3.5 m, specific surface area 3
- Adsolida 101 Freund Sangyo, Freund Sangyo, particle size 3.5 m, specific surface area 3
- Adsolida 101 Freund Sangyo, Freund Sangyo, particle size 3.5 m, specific surface area 3
- the drug lidocaine hydrochloride 60 mg and diphenhydramine hydrochloride lOnig supported on the porous fine particle carrier are dissolved in 70% ethanol 120 mg, and the porous fine particle carrier light caustic anhydride (Adsolida-1 101: Freund Corporation, particle size 3.5 zm ⁇ ) Specific surface area 300 m 2 / g Oil absorption capacity 3.4 mL / g) Mix well with 80 m and sieve through No. 50 sieve, It was blow-dried at 70 ° C for 360 minutes.
- lidocaine hydrochloride-supported particles 140 mg and diphenhydramine hydrochloride (90 mg) were separately dissolved in 120 mg each of 95% ethanol to dissolve 20 mg each of hydroxypropylcellulose (HP C-L: Nippon Soda).
- the ethanol solution of the water-soluble polymer is mixed well and sieved with a No. 50 sieve.
- the particles carrying lidocaine hydrochloride and the particles carrying diphenhydramine hydrochloride both have an average particle diameter of 10 m, and are blown at 70 ° C for 360 minutes. Drying gave a coated drug carrier.
- lidocaine a drug supported on a porous fine particle carrier
- light caustic anhydride as a porous fine particle carrier
- the mixture was thoroughly mixed with 0 m 2 Zg, oil absorption capacity (3.4 mL / g) of 80 mg, sieved with a No. 50 sieve, and air-dried at 60 ° C for 360 minutes.
- the obtained drug-carrying particles (140 m) and a water-soluble polymer solution obtained by dissolving 20 mg of hydroxypropylcellulose (HP CL: Nippon Soda) in 120 mg of purified water were mixed well, and sieved with a No. 50 sieve. After the average particle diameter was adjusted to 10 ⁇ m, the particles were dried by blowing air at 60 ° C. for 360 minutes to obtain coated drug-supporting particles.
- lidocaine a drug supported on a porous fine particle carrier
- Magnesium metasilicate aluminate (neusilin UFL 2 : Fuji Chemical Industry, particle size 1.6 ⁇ m, specific surface area 2) 60 m 2 Zg, oil absorption capacity 3.2 mL / g) 80 mg, mixed well, sieved with No. 50 sieve, and dried by blowing at 60 ° C for 360 minutes.
- the obtained drug-carrying particles (140 mg) and a water-soluble polymer solution obtained by dissolving 20 mg of hydroxypropylcellulose (HP C-L: Nippon Soda) in 120 mg of purified water are mixed well and sifted through a No.
- lidocaine hydrochloride a drug supported on a porous microparticle carrier
- a porous microparticle carrier a drug supported on a porous microparticle carrier
- light caustic anhydride as a porous microparticle carrier
- Adsolida-1 101 Freund Corporation, particle size 3.5 ⁇ m, specific surface area 3 0 0 m 2 Z g, oil-absorbing ability 3. well mixed with 4 m L / g) 80mg, sieved through Japanese 3 ⁇ 4 side reference No. 50 sieve, and air dried feed 70 ° C 360 min.
- the obtained drug-carrying particles (140 mg) and an ethanol solution of a water-soluble polymer obtained by dissolving 20 m of hydroxypropylcellulose (HP C-L: Nippon Soda) in 120 mg of 95% ethanol were mixed well. After sieving through a sieve to obtain an average particle diameter of 10 / m, the particles were dried by blowing air at 70 ° C for 360 minutes to obtain coated drug-carrying particles. After dissolving 1832 mg of the base white petrolatum (50 to 60 ° C), stir 2 mg of methylefedrine hydrochloride, 1 mg of prednisolone, and 5 mg of aluminum chlorohydroxyalaninate such as the drug to be mixed with the base. The coated drug-carrying particles (160 mg) were then uniformly dispersed in the base, and then filled in a container for injectable ointment to obtain the ointment (2 g) of the present invention. Comparative Example 1
- Example 1 The same as in Example 1 except that 20 mg of polyethylene glycol (PE G6000: Nippon Yushi) was removed as the water-soluble polymer instead of 20 mg of hydroxypropyl cellulose (HP C-L: Nippon Soda). Suppositories were produced.
- the polyethylene glycol (PE G6000: Nippon Oil & Fats) used as the water-soluble polymer in Comparative Example 1 was the same as the polyethylene glycol of Reference Example 8 (20% by mass aqueous solution and 0.07% at 37 ° C.). (Viscosity of 5 Pascal). Test example 1
- a simulated rectal environment was created using a cellulose tube, and the adhesion retention property of the suppository of Example 1 and Comparative Example 1 was evaluated in such an environment.
- Example 1 The suppositories of Example 1 and Comparative Example 1 were administered to rats, and the drug (lidocaine hydrochloride) concentration in rat rectal tissues after a predetermined period of time was evaluated. (Test method)
- each suppository prepared according to the description in Example 1 and Comparative Example 1 was used to make it into a size that could be administered from the rat anus (cylinder, weight 100 mg, lidocaine hydrochloride concentration). 3.4 mg / piece).
- the suppository of Example 1 showed a higher concentration of lidocaine hydrochloride in the rectal tissue than the suppository of Comparative Example 1.
- the results of Example 1 show that the suppository of Example 1 can maintain the drug concentration in the rectal paper for a long time because the drug-carrying particles can adhere and stay on the intestinal mucosa.
- the results of Comparative Example 1 show that the suppository of Comparative Example 1 did not allow the drug-carrying particles to adhere and stay on the intestinal mucosa, and the drug-carrying particles moved in the intestinal tract as the suppository moved. This indicates that the drug concentration in rectal tissue was reduced as a result.
- porous fine particle carrier By appropriately selecting the drug, base and the like to be carried on the porous fine particle carrier, suppositories and injectable ointments applicable not only to the rectum (anus) but also to the vagina, urethra, nasal cavity, etc. can be prepared.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04772819A EP1666024A4 (en) | 2003-08-29 | 2004-08-30 | PREPARATION FOR RECTAL ADMINISTRATION |
JP2005513557A JPWO2005020960A1 (ja) | 2003-08-29 | 2004-08-30 | 直腸投与用製剤 |
US11/362,750 US20060147541A1 (en) | 2003-08-29 | 2006-02-28 | Pharmaceutical preparation for rectal administration |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-306599 | 2003-08-29 | ||
JP2003306599 | 2003-08-29 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/362,750 Continuation US20060147541A1 (en) | 2003-08-29 | 2006-02-28 | Pharmaceutical preparation for rectal administration |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005020960A1 true WO2005020960A1 (ja) | 2005-03-10 |
Family
ID=34269395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/012870 WO2005020960A1 (ja) | 2003-08-29 | 2004-08-30 | 直腸投与用製剤 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060147541A1 (ja) |
EP (1) | EP1666024A4 (ja) |
JP (1) | JPWO2005020960A1 (ja) |
KR (1) | KR100733028B1 (ja) |
WO (1) | WO2005020960A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10987498B2 (en) | 2018-02-09 | 2021-04-27 | LK Innovations, LLC | Anal and perianal therapeutic substance delivery device |
JP2021522267A (ja) * | 2018-04-25 | 2021-08-30 | フェリング・ベー・フェー | 裂肛及び痔核の治療のための局所製剤組成物 |
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JPS63280016A (ja) * | 1987-05-13 | 1988-11-17 | Taisho Pharmaceut Co Ltd | 坐剤 |
JPH01143825A (ja) * | 1987-11-30 | 1989-06-06 | Taisho Pharmaceut Co Ltd | 坐剤 |
JPH0491020A (ja) * | 1990-08-06 | 1992-03-24 | Nippon Shinyaku Co Ltd | 直腸投与用組成物 |
JPH0640889A (ja) * | 1992-07-24 | 1994-02-15 | Nippon Oil & Fats Co Ltd | 座薬製剤 |
JPH07179345A (ja) * | 1993-11-11 | 1995-07-18 | Yoshitomi Pharmaceut Ind Ltd | 坐 剤 |
JPH07304669A (ja) * | 1993-07-12 | 1995-11-21 | Taisho Pharmaceut Co Ltd | 痔疾治療用組成物 |
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WO1999017737A1 (fr) * | 1997-10-08 | 1999-04-15 | Taisho Pharmaceutical Co., Ltd. | Composition de suppositoire |
WO2000029026A1 (fr) * | 1998-11-17 | 2000-05-25 | Taisho Pharmaceutical Co., Ltd. | Suppositoires |
JP2001261551A (ja) * | 2000-03-14 | 2001-09-26 | Tendou Seiyaku Kk | 坐剤及びその製造法 |
WO2002024161A1 (fr) * | 2000-09-21 | 2002-03-28 | Taisho Pharmaceutical Co., Ltd. | Suppositoires soutenus dans le rectum inférieur |
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CA2424953A1 (en) * | 2000-10-04 | 2002-04-11 | Lexicon Genetics Incorporated | Novel human proteases and polynucleotides encoding the same |
-
2004
- 2004-08-30 EP EP04772819A patent/EP1666024A4/en not_active Withdrawn
- 2004-08-30 WO PCT/JP2004/012870 patent/WO2005020960A1/ja active Application Filing
- 2004-08-30 JP JP2005513557A patent/JPWO2005020960A1/ja active Pending
- 2004-08-30 KR KR1020067003495A patent/KR100733028B1/ko not_active IP Right Cessation
-
2006
- 2006-02-28 US US11/362,750 patent/US20060147541A1/en not_active Abandoned
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JPH07304669A (ja) * | 1993-07-12 | 1995-11-21 | Taisho Pharmaceut Co Ltd | 痔疾治療用組成物 |
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JP2001261551A (ja) * | 2000-03-14 | 2001-09-26 | Tendou Seiyaku Kk | 坐剤及びその製造法 |
WO2002024161A1 (fr) * | 2000-09-21 | 2002-03-28 | Taisho Pharmaceutical Co., Ltd. | Suppositoires soutenus dans le rectum inférieur |
JP2003119119A (ja) * | 2001-10-12 | 2003-04-23 | Pola Chem Ind Inc | 肛門用の皮膚外用剤 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10987498B2 (en) | 2018-02-09 | 2021-04-27 | LK Innovations, LLC | Anal and perianal therapeutic substance delivery device |
JP2021522267A (ja) * | 2018-04-25 | 2021-08-30 | フェリング・ベー・フェー | 裂肛及び痔核の治療のための局所製剤組成物 |
US11865207B2 (en) | 2018-04-25 | 2024-01-09 | Ferring B.V. | Topical pharmaceutical composition for treatment of anal fissures and hemorrhoids |
Also Published As
Publication number | Publication date |
---|---|
KR100733028B1 (ko) | 2007-06-28 |
US20060147541A1 (en) | 2006-07-06 |
KR20060039450A (ko) | 2006-05-08 |
EP1666024A1 (en) | 2006-06-07 |
JPWO2005020960A1 (ja) | 2007-11-01 |
EP1666024A4 (en) | 2009-11-25 |
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