WO2014051023A1 - アナグリプチン含有製剤 - Google Patents
アナグリプチン含有製剤 Download PDFInfo
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- WO2014051023A1 WO2014051023A1 PCT/JP2013/076202 JP2013076202W WO2014051023A1 WO 2014051023 A1 WO2014051023 A1 WO 2014051023A1 JP 2013076202 W JP2013076202 W JP 2013076202W WO 2014051023 A1 WO2014051023 A1 WO 2014051023A1
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- anagliptin
- solid preparation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
- A61K31/519—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
-
- 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
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2004—Excipients; Inactive ingredients
- A61K9/2022—Organic macromolecular compounds
- A61K9/2027—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
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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
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2004—Excipients; Inactive ingredients
- A61K9/2022—Organic macromolecular compounds
- A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
- A61K9/2054—Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
- A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
Definitions
- the present invention belongs to the pharmaceutical field, and specifically relates to a preparation containing anagliptin, which is an inhibitor of dipeptidyl peptidase IV, or a salt thereof.
- a compound useful as an active ingredient of a pharmaceutical agent in general, it is difficult to administer a compound useful as an active ingredient of a pharmaceutical agent as it is from the viewpoint of ingestion and ensuring the accuracy of the dosage, and it is usually formulated and administered in some dosage form.
- solid preparations such as powders, granules, tablets and the like have a merit that they are easier to handle and easier to manage the dose than liquids and the like, and are widely used dosage forms.
- a solid preparation is required to have efficacy and safety as a pharmaceutical product, but chemical stability and physical stability of the preparation at the time of market distribution are also important. However, elution is generally delayed when the handleability and physical stability of a solid preparation are improved.
- anagliptin there is no specific formulation or formulation technology that can be marketed as a pharmaceutical product as well as a solid product.
- vildagliptin which is a structurally similar dipeptidyl peptidase IV (DPP-IV) inhibitor
- DPP-IV dipeptidyl peptidase IV
- a tablet containing microcrystalline cellulose, lactose, sodium starch glycolate, and magnesium stearate has been reported (Patent Document 1).
- DPP-IV dipeptidyl peptidase IV
- linagliptin which is also a DPP-IV inhibitor
- Tableting obstacles are sticking (a phenomenon in which powder adheres to the heel), binding (a phenomenon in which friction between the die and the tablet increases), capping (a phenomenon in which the tablet peels into a cap shape), and laminating (a tablet peels in a layer) Phenomenon).
- This document discloses a technique of further adding an excipient such as crystalline cellulose to granules containing a pharmaceutically active ingredient, mannitol, crystalline cellulose and the like, and compressing and molding into tablets.
- Anagliptin is the most suitable tablet in view of its effective dose. However, in order to obtain a tablet with a size that is easy to handle, it becomes a high-content preparation containing anagliptin in a high content. In this case, the coexistence of the elution characteristics of the active ingredient, the physical stability of the tablet (tablet hardness and friability), and the chemical stability of the active ingredient (decomposition characteristics of the active ingredient) are all good. It was difficult. Therefore, an object of the present invention is to provide a technique for producing an anagliptin preparation having both high chemical stability and fast dissolution characteristics of an active ingredient anagliptin and excellent physical stability of a tablet.
- anagliptin is unstable to water in the preparation
- a preparation without problems with the chemical stability of anagliptin could be produced.
- the inventors have found that a preparation having both high physical stability and fast dissolution can be obtained by blending crystalline cellulose and crospovidone, and completed the present invention.
- this invention mentions also about the combination of an anagliptin and each additive.
- the main configuration of the present invention is as follows.
- Anagliptin or a salt thereof as an active ingredient, crospovidone as a disintegrating agent, crystalline cellulose as an excipient, and a binder, without a fluidizing agent, and part or all of the active ingredient and the containing ingredient A solid preparation produced by compression molding after wet granulation with a binder.
- Hardness of solid preparation is 30N or more, 20 tablets of solid preparation were tested for 15 minutes at drum rotation speed of 25rpm using drum described in Japanese Pharmacopoeia tablet friability test method.
- the solid preparation according to (1) having a dissolution rate of 1% or less and a dissolution rate of 15 minutes according to the Japanese Pharmacopoeia dissolution test method of 85% or more.
- the solid preparation according to (2), wherein the degradation product amount in the stability test for 21 days is 3% or less under conditions of a temperature of 60 ° C. and a relative humidity of 75%.
- the solid preparation according to (1), wherein the binder is one or more binders selected from the group consisting of hydroxypropylcellulose, povidone, hypromellose, pullulan, and starch paste.
- the solid preparation according to (4), wherein the binder is hydroxypropylcellulose.
- the solid preparation according to (1), wherein the content of the anagliptin or a salt thereof is 47% by mass to 83% by mass of the entire preparation.
- the solid preparation according to (1), wherein the content of the anagliptin or a salt thereof is 55% to 75% by weight of the whole preparation.
- the solid preparation according to (1), wherein the content of crospovidone is 7% to 35% by weight of the whole preparation.
- the solid preparation according to (1), wherein the content of crospovidone is 8% to 25% by weight of the whole preparation.
- a method for producing a solid preparation by granulating a powder mixture containing anagliptin or a salt thereof with a binder and then compression-molding the mixture, and wet-making at least anagliptin or a salt thereof in a solution containing the binder. At least the crystalline cellulose and crospovidone are added and mixed to the granules obtained by granulation, and the step of compression molding the obtained mixture, or at least anagliptin or a salt thereof, crystalline cellulose and crospovidone are mixed.
- the manufacturing method of the solid formulation containing an anagliptin or its salt including the process of compression-molding the granule obtained by carrying out wet granulation of the obtained mixture in the solution containing a binder.
- the binder is one or more binders selected from the group consisting of hydroxypropylcellulose, povidone, hypromellose, pullulan, and starch paste.
- a solid preparation containing anagliptin or a salt thereof and crystalline cellulose (19) The solid preparation according to (18), further comprising crospovidone. (20) A solid preparation containing anagliptin or a salt thereof and crospovidone. (21) A solid preparation containing anagliptin or a salt thereof and ferric oxides. (22) The solid preparation according to any one of (18) to (21), wherein the solid preparation is a tablet, capsule, granule, fine granule, or powder.
- anagliptin or a salt thereof in a preparation containing anagliptin or a salt thereof as an active ingredient, excellent chemical stability of the active ingredient, good dissolution characteristics of the active ingredient, and / or excellent physical stability of the preparation are obtained.
- those effects can be sufficiently obtained, so that high quality as a pharmaceutical product of a preparation containing anagliptin or a salt thereof can be ensured.
- Anagliptin is the compound of Example 2 of WO2004 / 067509 and can be synthesized with reference to the production method of Example 1 of WO2004 / 067509.
- “anagliptin or a salt thereof” includes not only anagliptin itself, but also a pharmaceutically acceptable salt of anagliptin, or a solvate of anagliptin or a pharmaceutically acceptable salt thereof, water, alcohol or the like. Is also included.
- Examples of the pharmaceutically acceptable salt include a salt with an inorganic acid, a salt with an organic acid, a salt with a basic or acidic amino acid, and the like.
- Preferable examples of the salt with inorganic acid include salts with hydrochloric acid, hydrobromic acid, nitric acid, sulfuric acid, phosphoric acid and the like.
- Suitable examples of salts with organic acids include acetic acid, trifluoroacetic acid, fumaric acid, oxalic acid, tartaric acid, maleic acid, citric acid, succinic acid, malic acid, methanesulfonic acid, benzoic acid, and toluenesulfonic acid. And the like.
- Preferable examples of the salt with basic amino acid include a salt with arginine and the like.
- Preferable examples of the salt with acidic amino acid include salts with aspartic acid, glutamic acid and the like.
- anagliptin or a salt thereof is preferably free.
- the content of anagliptin in this preparation is not particularly limited, but from the viewpoint of ensuring that the preparation is easy to take, and ensuring the expected dissolution characteristics and physical stability (hardness and friability) of the preparation.
- it is 47% by mass to 83% by mass of the whole preparation, and more preferably 55% by mass to 75% by mass.
- crospovidone is usually used as a disintegrant.
- the content of crospovidone is not particularly limited, it is preferably 7% by mass to 35% by mass, more preferably from the viewpoint of ensuring the expected elution characteristics and making the formulation easy to take. Is 8% by mass to 25% by mass.
- crospovidone is a crosslinked polymer of 1-vinyl-2-pyrrolidone, and in the present invention, any crospovidone having a different molecular weight or the like may be used, and these may be used alone or in combination of two or more. It may be used.
- crospovidone a commercially available product may be used.
- Kollidon CL for example, Kollidon CL, Kollidon CL-F, Kollidon CL-M, Kollidon CL-SF (above, manufactured by BASF), polyplastidone XL, Polyplaston XL-10, Polyplaston INF-10 (manufactured by IPS Japan Co., Ltd.) and the like.
- other disintegrants and the like can be used in combination. Examples of such other disintegrants include low-substituted hydroxypropyl cellulose, carmellose, carmellose calcium, carboxymethyl starch sodium, croscarmellose sodium, crospovidone, and partially pregelatinized starch.
- a binder is usually used for wet granulation.
- the binder include hydroxypropyl cellulose, povidone, hypromellose, pullulan, and starch paste. These may be used alone or in combination of two or more. Among these binders, hydroxypropylcellulose, povidone, and hypromellose are preferable.
- the content of the binder is not particularly limited, but it is preferably 0.1% to 5% by weight, more preferably 0.3%, more preferably 0.3% by weight of the whole preparation from the viewpoint of avoiding tableting troubles and ensuring expected dissolution characteristics. % By mass to 3% by mass, more preferably 0.5% by mass to 2% by mass.
- crystalline cellulose is usually used as an excipient.
- the content is not particularly limited, but from the viewpoint of ensuring the expected physical stability (hardness and friability) and ensuring the expected dissolution characteristics, it is preferably 7% to 37% by weight of the entire preparation. More preferably, it is 10% by mass to 35% by mass, and further preferably 15% by mass to 30% by mass.
- the properties of the crystalline cellulose to be used are not particularly limited, and it may be powdery, finely divided (crystalline cellulose (fine particles)), or granulated (crystalline cellulose (grains)), and these may be used alone. , Or a combination of two or more. Further, as the crystalline cellulose, commercially available ones can be used.
- additives that can be generally used as pharmaceutical additives may be blended.
- the excipient include lactose hydrate, D-mannitol, corn starch, and anhydrous calcium hydrogen phosphate
- examples of the lubricant include magnesium stearate, talc, stearic acid, calcium stearate, and Examples include sodium stearyl fumarate. These excipients may be used alone or in admixture of two or more.
- this preparation may contain ferric oxide as a coloring agent.
- the iron sesquioxides may be any component containing iron sesquioxide, and examples thereof include yellow iron sesquioxide, brown iron oxide, and iron sesquioxide, among which yellow iron sesquioxide and iron sesquioxide are preferable. . These are known compounds, which can be produced by known methods, and commercially available products can be used.
- the content of ferric sesquioxide in the preparation is not particularly limited, but is preferably 0.005 to 0.5 mass%, more preferably 0.01 to 0.1 mass% of the entire preparation.
- the iron sesquioxides may be present not in the compression molded product but in the film coating layer or sugar coating layer described later.
- a film coating layer or a sugar coating layer can be provided.
- a film coating layer consists of the combination of the additive used as a pharmaceutical additive, for example, is comprised from a hypromellose, a macrogol, a titanium oxide, etc.
- the film coating layer or sugar coating layer may be colored by adding a colorant as described above. Further, a brightener may be added to increase the commercial value.
- the physical stability is good if the hardness of the tablet measured with a load cell type hardness tester is at least 30 N or more.
- the tablet hardness is preferably 40 N or more.
- the friability of the tablet is preferably less than 1%. When the friability is less than 1%, it can be said that the physical stability is good.
- the friability means the mass of 20 tablets measured using a friability tester (drum) described in the Japanese Pharmacopoeia tablet friability test method, put in a drum, and rotated at 25 rpm for 15 minutes. After rotation, the tablet is taken out and the mass is measured. Separately, 20 tablets were used as controls, and the friability after correcting moisture absorption from the mass before and after the test.
- the dissolution property evaluation is performed in the “paddle method” of the “dissolution test method” category of the “formulation test method” category of the “general test method” category in the 16th revised Japanese pharmacopoeia.
- the dissolution rate of the active ingredient in the tablet is measured at a paddle rotation speed of 50 rpm.
- the dissolution rate of the active ingredient for 15 minutes according to the test method is preferably 85% or more. If the dissolution rate is less than that, the dissolution of anagliptin from the tablet is poor, which may cause efficacy problems.
- the chemical stability evaluation of anagliptin that is, the stability test is performed as follows.
- the formulation is subjected to an open 21-day severe test in an environment of a temperature of 60 ° C. and a relative humidity of 75%.
- the ratio of the total peak area value (corresponding to the amount of degradation products of anagliptin) to the total peak area value is calculated.
- the ratio is the ratio (%) of the degradation product amount of anagliptin, and in this preparation, the value is preferably 3% or less.
- solid preparation may mean a solid preparation such as a capsule, granule, fine granule, powder, etc., except where there is a description limited to tablets produced by compression molding.
- Each form of solid preparation can be produced by various methods according to common general technical knowledge. Among them, tablets produced by compression molding, which constitutes the main part of the present invention, are combined with a powder mixture containing at least anagliptin. The remaining components can be added to the granules formed by wet granulation with an agent, if necessary, and compression-molded.
- anagliptin can be produced by adding and mixing at least crystalline cellulose and crospovidone to granules obtained by wet granulation with a solution containing a binder, and compression-molding the resulting mixture. it can. It can also be produced by compression molding granules obtained by wet granulating a mixture obtained by mixing at least anagliptin, crystalline cellulose and crospovidone with a solution containing a binder. Here, a lubricant or the like is added as necessary. Moreover, it is preferable that the whole anagliptin is wet-granulated.
- Example and the comparative example in the following experiment examples is for the invention of (1) described in the means for solving the present problem, it is a comparative example for other inventions. May be an example or vice versa.
- the basic measurement method in the experimental example is based on the following four methods. In all experiments, the active ingredient anagliptin was manufactured by Sekisui Medical Co., Ltd.
- crystalline cellulose (Asahi Kasei Chemicals Co., Ltd .: Theolas PH-302) is dried at various temperatures (70 to 105 ° C) to prepare crystalline cellulose samples with different moisture contents.
- the anagliptin was mixed in a plastic bag so that the blending ratio of anagliptin was 5%, and then quickly filled into a glass bottle (about 13 g in a 30 mL bottle) and sealed.
- Such test specimens were subjected to stability tests at 60, 70, and 80 ° C. for 7, 14, and 21 days, and the amount of degradation products (%) before and after the stability test was measured.
- the moisture content% of each test specimen before the stability test is shown in Table 1.
- Table 2 shows the amount of decomposition products (%) before and after the stability test.
- the obtained mixed powder was tableted using a ⁇ 8mm standard R ⁇ with a rotary tableting machine (manufactured by Kikusui Seisakusho Co., Ltd .: VIRG) at a tableting pressure of 10 kN / ⁇ to give a tablet weight of 160 mg to produce tablets. did.
- the obtained mixed powder was tableted with a tableting pressure of 10 kN / ⁇ using a rotary tableting machine using a ⁇ 8 mm standard R ⁇ . These tablets contain 100 mg (66-68% by mass) of anagliptin in the tablet.
- Example 1 Using 100 parts by mass of anagliptin in an aqueous solution of 1.5 parts by mass of hydroxypropylcellulose (Nippon Soda Co., Ltd .: HPC-L) using a fluidized bed granulator (Freund Sangyo Co., Ltd .: Flow coater FLO-5) Fluidized bed granulated, dried, and then sized with a sizing machine (Dalton Co., Ltd .: Power Mill P-04S).
- a fluidized bed granulator Frund Sangyo Co., Ltd .: Flow coater FLO-5
- the granules were mixed with 15 parts by mass of crospovidone (BASF: Kollidon CL) and crystalline cellulose ( Asahi Kasei Chemicals Co., Ltd .: Theolas KG-802) 30 parts by mass was added and mixed in a plastic bag, then magnesium stearate (Tahei Chemical Industry Co., Ltd .: magnesium stearate vegetable) 1.5 parts by mass was added. Furthermore, the plastic bag was mixed.
- BASF Kollidon CL
- crystalline cellulose Asahi Kasei Chemicals Co., Ltd .: Theolas KG-802
- the obtained granules were tableted with a tableting pressure of 10 kN / kg and a tablet weight of 148 mg using a rotary tableting machine (manufactured by Kikusui Seisakusho Co., Ltd .: VIRG) using a ⁇ 8 mm standard R ⁇ .
- the tablet contains 100 mg (almost 68%) of anagliptin in 148 mg of the tablet.
- Example 2 In Example 1, 1.5 parts by mass of hydroxypropyl cellulose (manufactured by Nippon Soda Co., Ltd .: HPC-L) was replaced with 1.5 parts by mass of povidone (manufactured by BASF: Kollidon K30), and fluidized bed granulator / dryer (Freund Sangyo Co., Ltd.) ): Flow coater FLO-5) was replaced with a fluidized bed granulator (Freund Sangyo Co., Ltd .: Flow coater FLO-2).
- Example 3 In Example 2, 1.5 parts by mass of povidone was replaced with 1.5 parts by mass of hypromellose (manufactured by Shin-Etsu Chemical Co., Ltd .: TC-5R).
- Example 4 100 parts by mass of anagliptin, 15 parts by mass of crospovidone (manufactured by BASF: Kollidon CL), and 30 parts by mass of crystalline cellulose (manufactured by Asahi Kasei Chemicals Corporation: Theolas KG-802) are produced by hydroxypropyl cellulose (manufactured by Nippon Soda Co., Ltd.): HPC-L) After mixing with 1.5 parts by mass of aqueous solution using a fluidized bed granulator (Freund Sangyo Co., Ltd .: Flow coater FLO-2), fluidized bed granulated, dried and granulated The size was adjusted with a Dalton Co., Ltd.
- a fluidized bed granulator Frund Sangyo Co., Ltd .: Flow coater FLO-2
- the test results are shown in Table 5 below.
- the tablets of Examples 1 to 4 produced by wet granulation have a degradation product amount (%) of 3% or less even after 21 days of stability test, but they are directly compressed using a fluidizing agent.
- the decomposition product amount (%) exceeded 3%. From this result, it was found that the fluidizing agent had an adverse effect on the chemical stability of anagliptin.
- Binders that can be used in this preparation were examined. That is, the physical stability and dissolution characteristics of the tablets of Examples 1 to 4 and the tablets of Examples 5 and 6 below were evaluated.
- Example 5 The same production as in Example 2 was carried out by replacing 1.5 parts by mass of povidone (BASF: Kollidon K30) with 1.5 parts by mass of pullulan (Hayashibara Co., Ltd .: pullulan).
- BASF Kollidon K30
- pullulan Hayashibara Co., Ltd .: pullulan
- Example 6 A starch paste obtained by suspending 1.5 parts by weight of an aqueous solution of povidone (BASF: Kollidon K30) in 1.5 parts by weight of starch (Nihon Shokuhin Kako Co., Ltd .: corn starch) and watering it at 80 ° C or higher for 30 minutes or more. It replaced and manufactured similarly to Example 2.
- BASF Kollidon K30
- starch Nahon Shokuhin Kako Co., Ltd .: corn starch
- Example 5 The amount of crospovidone, a disintegrant, was examined. That is, the physical stability and dissolution characteristics of the tablets of Examples 7 to 12 shown below were evaluated.
- Example 7 to 12 The addition amount of crospovidone (manufactured by BASF: Kollidon CL) and the mass of one tablet were set to the ratios shown in Table 7, and tablets were produced in the same manner as in Example 1.
- the test results are shown in Table 8. As the amount of crospovidone added increased, the hardness decreased and consistent results were not obtained with respect to the friability, but all showed good physical stability with a hardness of 40 N or more and a friability of 1% or less. On the other hand, the elution characteristics increased as the amount of crospovidone added increased, but only when the amount of crospovidone added was 5% by mass, the expected elution characteristics (15 minutes value of 85% or more) were not obtained. From the above results, it was found that the content of crospovidone is preferably 7% by mass or more, and most preferably about 15% by mass. Use of crospovidone in an amount exceeding 30% by mass is not preferable because the tablet becomes large and difficult to swallow.
- Example 6 The disintegrant that can be used in this preparation was examined. That is, in the tablet of Example 1, the disintegrant crospovidone was replaced with another disintegrant, and the tablets of the following Comparative Examples 5 to 11 (both containing 10% by mass of the disintegrant as in Example 1), The physical stability and elution characteristics were evaluated.
- Example 7 As in Experiment 6, the disintegrant that can be used in this preparation was examined. That is, in the tablet of Example 13, the tablet of the following Comparative Examples 12 to 16 in which the disintegrant crospovidone was replaced with another disintegrant (both containing 10% by mass of the disintegrant as in Example 13), The physical stability (hardness) and elution characteristics were evaluated.
- Example 13 100 parts by mass of anagliptin was granulated using an aqueous hydroxypropylcellulose solution (1.6 parts by mass as hydroxypropylcellulose). The obtained granular material was dried, 16 parts by mass of crospovidone (manufactured by BASF: Kollidon CL), 24 parts by mass of D-mannitol and 16 parts by mass of crystalline cellulose were added and mixed. Next, 2.4 parts by mass of magnesium stearate was added and mixed to obtain tableting granules. The obtained granules for tableting were tableted to 160 mg per tablet. The obtained tablet contains 100 mg of anagliptin and 16 mg of crospovidone per tablet, and the content per tablet is 62.5% by mass of anagliptin and 10% by mass of crospovidone, respectively.
- Example 13 In Example 13, it replaced with 16 mass parts of crospovidone, and replaced with 16 mass parts of disintegrating agents shown in Table 10, and it manufactured similarly to Example 13.
- the following five disintegrants are carboxymethyl cellulose (manufactured by Gotoku Pharmaceutical Co., Ltd .: NS-300), sodium carboxymethyl starch (manufactured by ROQUTTE: Glicolis), croscarmellose sodium (manufactured by FMC Biopolymer: Ac- Di-Sol), low-substituted hydroxypropyl cellulose (Shin-Etsu Chemical Co., Ltd .: L-HPC LH-21), and carmellose calcium (Gotoku Pharmaceutical Co., Ltd .: ECG-505) were used.
- Example 14 to 17 The amount of crystalline cellulose (Asahi Kasei Chemicals Co., Ltd .: Theolas KG-802) added and the mass of one tablet were set to the ratio shown in Table 11, and tablets were produced in the same manner as in Example 1.
- Example 14 where the addition amount of crystalline cellulose was 5% by mass, the expected physical stability was not shown, and when the addition amount of crystalline cellulose was 40% by mass, the expected dissolution characteristics (15 minutes value 85% or more) were shown. There wasn't. From the above results, it was found that an appropriate content of crystalline cellulose was 7 to 37% by mass.
- Example 9 In this tablet, an excipient that can be replaced with crystalline cellulose was examined. That is, the physical stability of the tablets of Comparative Examples 17 to 19 (containing 20% by mass of the crystalline cellulose substitute as in Example 1) in which the crystalline cellulose was replaced with the substitute in the tablet of Example 1. Evaluation and elution characteristics were evaluated.
- Example 1 30 parts by mass of crystalline cellulose, as shown in Table 13, 30 parts by mass of lactose hydrate (DMV: lactose 200M), D-mannitol (Mitsubishi Corporation Foodtech Co., Ltd .: Man Knit-P) 30 parts by mass and anhydrous calcium hydrogen phosphate (manufactured by Kyowa Chemical Industry Co., Ltd .: anhydrous calcium hydrogen phosphate) were replaced with 30 parts by mass.
- DMV lactose 200M
- D-mannitol Mitsubishi Corporation Foodtech Co., Ltd .: Man Knit-P
- anhydrous calcium hydrogen phosphate manufactured by Kyowa Chemical Industry Co., Ltd .: anhydrous calcium hydrogen phosphate
- Example 18 In Example 1, the addition amount of crospovidone (BASF Corporation: Kollidon CL), crystalline cellulose (Asahi Kasei Chemicals Co., Ltd .: Theolas KG-802), magnesium stearate (Taihei Chemical Industry Co., Ltd.): The amount of magnesium stearate vegetable) and the mass of 1 tablet were set to the ratios shown in Table 14 and were produced in the same manner as in Example 1.
- crospovidone BASF Corporation: Kollidon CL
- crystalline cellulose Asahi Kasei Chemicals Co., Ltd .: Theolas KG-802
- magnesium stearate Teaihei Chemical Industry Co., Ltd.
- Example 20 In Example 1, the addition amount of crospovidone (BASF Corporation: Kollidon CL), crystalline cellulose (Asahi Kasei Chemicals Corporation: Theolas KG-802), magnesium stearate (Taihei Chemical Industry Co., Ltd.): The amount of magnesium stearate vegetable) and the mass of 1 tablet were set to the ratios shown in Table 14 and were produced in the same manner as in Example 1.
- crospovidone BASF Corporation: Kollidon CL
- crystalline cellulose Asahi Kasei Chemicals Corporation: Theolas KG-802
- magnesium stearate Teaihei Chemical Industry Co., Ltd.
- Example 20 and 21 Tablets were produced in the same manner as in Example 1 at the blending ratios in Table 16.
- Example 20 is an uncoated tablet part, and a film-coated tablet on which film coating is further performed is Example 21.
- Examples 22 to 26 Using the uncoated tablet of Example 20 of Experiment 11, a film coating having the composition shown in Table 18 below was applied to each tablet.
- Table 19 shows the test results. As can be seen from Table 19, the tablets of Examples 25 and 26 containing ferric oxides had very little color difference before and after storage under any conditions. On the other hand, Example 22 containing no colorant, Example 23 containing edible yellow No. 5 aluminum lake, and Example 24 containing edible yellow No. 5 had large color differences before and after storage. Moreover, in Examples 23 and 24 containing Food Yellow No. 5, etc., the color difference was larger than when no colorant was contained. From these results, it is considered that iron sesquioxides exhibited an effect of specifically preventing discoloration of tablets in tablets containing anagliptin. Therefore, a solid preparation containing anagliptin or a salt thereof and ferric sesquioxide is excellent in long-term storage stability.
- Examples 27 to 29 Using the uncoated tablet of Example 20 of Experiment 11, film coating having the composition shown in Table 20 below was applied to each tablet to prepare film-coated tablets.
- the results are shown in Table 21. As is clear from Table 21, it was found that any tablet containing iron sesquioxide is excellent in storage stability. From the results of the above experiments 12 and 13, we have achieved the invention described in (21) of the means for solving the problem of a solid preparation containing anagliptin or a salt thereof and iron sesquioxide. More specifically, the invention is a solid preparation having a film coating containing anagliptin or a salt thereof and further containing iron sesquioxide.
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Abstract
Description
(1)有効成分としてアナグリプチン又はその塩、崩壊剤としてクロスポビドン、賦形剤として結晶セルロース、及び結合剤を含有し、流動化剤を含まず、前記有効成分及び前記含有成分の一部又は全部を前記結合剤にて湿式造粒した後に圧縮成型して製造される固形製剤。
(2)固形製剤の硬度が30N以上、固形製剤20錠を日本薬局方の錠剤の摩損度試験法記載のドラムを用いドラム回転数25rpmにて15分間試験し吸湿水分補正した後の摩損度が1%以下、及び、日本薬局方の溶出試験法による15分間の溶出率が85%以上を示す、(1)に記載の固形製剤。
(3)更に、温度60℃及び相対湿度75%の条件下で21日間の安定性試験の分解生成物量が3%以下を示す、(2)に記載の固形製剤。
(5)前記結合剤がヒドロキシプロピルセルロースである、(4)に記載の固形製剤。
(6)前記アナグリプチン又はその塩の含量が製剤全体の47質量%~83質量%である、(1)に記載の固形製剤。
(7)前記アナグリプチン又はその塩の含量が製剤全体の55質量%~75質量%である、(1)に記載の固形製剤。
(8)前記クロスポビドンの含量が製剤全体の7質量%~35質量%である、(1)に記載の固形製剤。
(9)前記クロスポビドンの含量が製剤全体の8質量%~25質量%である、(1)に記載の固形製剤。
(11)前記結晶セルロースの含量が製剤全体の15質量%~30質量%である、(1)に記載の固形製剤。
(12)前記結合剤の含量が製剤全体の0.1質量%~5質量%である、(1)に記載の固形製剤。
(13)更にフィルムコーティング層を有する、(1)に記載の固形製剤。
(14)前記フィルムコーティング層に三二酸化鉄類を含有する、(13)に記載の固形製剤。
(16)前記固形製剤のアナグリプチン又はその塩の含量が製剤全体の47質量%~83質量%である、(15)に記載の固形製剤の製造方法。
(17)前記結合剤が、ヒドロキシプロピルセルロース、ポビドン、ヒプロメロース、プルラン、及びデンプン糊からなる群から選択される1以上の結合剤である、(15)に記載の固形製剤の製造方法。
(19)更に、クロスポビドンを含有する、(18)に記載の固形製剤。
(20)アナグリプチン又はその塩、及びクロスポビドンを含有する固形製剤。
(21)アナグリプチン又はその塩、及び三二酸化鉄類を含有する固形製剤。
(22)前記固形製剤が、錠剤、カプセル剤、顆粒剤、細粒剤、又は散剤である、(18)~(21)のいずれかに記載の固形製剤。
アナグリプチン及びその全ての分解生成物をHPLCにて測定し、全ピーク面積からアナグリプチンのピーク面積を除いたピーク面積を全ピーク面積で除して分解生成物量(%)を算出した。これにより、有効成分であるアナグリプチンの化学的安定性の評価を行った。
2,物理的安定性評価:硬度測定方法
錠剤硬度計(岡田精工(株)製:ポータブルチェッカー PC-30)にて測定した。
3,物理的安定性評価:摩損度測定方法
日本薬局方錠剤の摩損度試験法記載の摩損度試験器(ドラム)を用い、錠剤20錠の質量を測定し、ドラムに入れ、回転数25rpmにて15分間回転させた後、錠剤を取り出し、質量を測定する。別に錠剤20錠を対照としておき、その試験前後の質量より吸湿水分補正して摩損度を算出した。
4,溶出特性評価方法
溶出試験機(富山産業(株)製:溶出試験システム)を用い、水900mL及びパドル回転数50rpmにて、UVフロー法で測定した。
アナグリプチンの分解に及ぼす水分量の影響を評価した。ここでは、結晶セルロース(旭化成ケミカルズ(株)製:セオラスPH-302)を様々な温度(70~105℃)で乾燥し、含有水分量の異なる結晶セルロースサンプルを作成し、それぞれの結晶セルロースサンプルに、アナグリプチンの配合比が5%となるようにアナグリプチンをビニール袋混合した後、速やかにガラス瓶に充填(30mL瓶に約13g)し密閉した。このような試験検体について、60、70、及び80℃にて7、14、及び21日の安定性試験を行い、安定性試験前後の分解生成物量(%)を測定した。尚、安定性試験前の各試験検体の水分量%を表1に示した。
アナグリプチンの直接打錠の可否について評価した。表3(試験検体1~5)に示す割合(質量比)にて、アナグリプチン、クロスポビドン(BASF社製:コリドンCL)、及び結晶セルロース(旭化成ケミカルズ(株)製:セオラスPH-302)をビニール袋混合し、次いでステアリン酸マグネシウム(太平化学工業(株)製:ステアリン酸マグネシウム植物性)を添加し、ビニール袋混合した。得られた混合粉体を、φ8mm標準R杵を用い、ロータリー打錠機((株)菊水製作所製:VIRG)にて打錠圧10kN/杵で1錠質量160mgとして打錠し、錠剤を製造した。
流動化剤を添加して直接打錠したアナグリプチン高含量の錠剤及び、湿式造粒して打錠したアナグリプチン高含量の錠剤について、アナグリプチンの化学的安定性を評価した。すなわち、以下の比較例1~4及び実施例1~4の錠剤をプラスチックシャーレに入れ、温度60℃、相対湿度75%にて、21日間の安定性試験を実施した。
表4に示す割合で、アナグリプチン、クロスポビドン(BASF社製:コリドンCL)、結晶セルロース(旭化成ケミカルズ(株)製:セオラスPH-302)、及び流動化剤である軽質無水ケイ酸(フロイント産業(株)製:アドソリダー101)又は含水二酸化ケイ素(フロイント産業(株)製:アドソリダー102)をビニール袋混合し、ついでステアリン酸マグネシウム(太平化学工業(株)製:ステアリン酸マグネシウム植物性)を添加し、ビニール袋混合した。得られた混合粉体を、φ8mm標準R杵を用い、ロータリー打錠機にて打錠圧10kN/杵で打錠した。これらの錠剤は、錠剤中、アナグリプチンを100mg(66~68質量%)含有する。
アナグリプチン100質量部をヒドロキシプロピルセルロース(日本曹達(株)製:HPC-L)1.5質量部の水溶液にて、流動層造粒乾燥機(フロイント産業(株)製:フローコーター FLO-5)を用い流動層造粒し、乾燥後、整粒機(ダルトン(株)製:パワーミル P-04S)にて整粒し、当該顆粒にクロスポビドン(BASF社製:コリドンCL)15質量部及び結晶セルロース(旭化成ケミカルズ(株)製:セオラスKG-802)30質量部を添加してビニール袋混合し、ついでステアリン酸マグネシウム(太平化学工業(株)製:ステアリン酸マグネシウム植物性)1.5質量部を添加し、更にビニール袋混合した。得られた顆粒を、φ8mm標準R杵を用い、ロータリー打錠機((株)菊水製作所製:VIRG)にて打錠圧10kN/杵で1錠質量148mgとして打錠した。当該錠剤は、錠剤148mg中、アナグリプチンを100mg(ほぼ68%)含有する。
実施例1において、ヒドロキシプロピルセルロース(日本曹達(株)製:HPC-L)1.5質量部をポビドン(BASF社製:コリドンK30)1.5質量部に置き換え、流動層造粒乾燥機(フロイント産業(株)製:フローコーター FLO-5)を流動層造粒乾燥機(フロイント産業(株)製:フローコーター FLO-2)に置き換えて、実施例1と同様に製造した。
実施例2において、ポビドン1.5質量部をヒプロメロース(信越化学工業(株)製:TC-5R)1.5質量部に置き換えて、実施例2と同様に製造した。
アナグリプチン100質量部、クロスポビドン(BASF社製:コリドンCL)15質量部、及び結晶セルロース(旭化成ケミカルズ(株)製:セオラスKG-802)30質量部をヒドロキシプロピルセルロース(日本曹達(株)製:HPC-L)1.5質量部の水溶液にて、流動層造粒乾燥機(フロイント産業(株)製:フローコーター FLO-2)を用いて混合後、流動層造粒し、乾燥後、整粒機(ダルトン(株)製:パワーミル P-04S)にて整粒し、更にステアリン酸マグネシウム(太平化学工業(株)製:ステアリン酸マグネシウム植物性)1.5部を添加しビニール袋混合した。得られた顆粒を、φ8mm標準R杵を用い、ロータリー打錠機((株)菊水製作所製:VIRG)にて打錠圧10kN/杵で1錠質量148mgとして打錠した。
本製剤において使用可能な結合剤の検討を行った。すなわち、前記実施例1~4の錠剤、並びに下記実施例5及び6の錠剤について、その物理的安定性評価及び溶出特性評価を行った。
ポビドン(BASF社製:コリドンK30)1.5質量部をプルラン((株)林原製:プルラン)1.5質量部に置き換えて、実施例2と同様に製造した。
ポビドン(BASF社製:コリドンK30)1.5質量部の水溶液をデンプン(日本食品化工(株)製:コーンスターチ)1.5質量部を水に懸濁させ80℃以上で30分以上アルファー化させたデンプン糊に置き換えて、実施例2と同様に製造した。
崩壊剤であるクロスポビドンの配合量の検討を行った。すなわち、以下に示す実施例7~12の錠剤について、その物理的安定性評価及び溶出特性評価を行った。
クロスポビドン(BASF社製:コリドンCL)の添加量及び1錠質量を表7に示す割合に設定し、実施例1と同様に錠剤を製造した。
本製剤において使用可能な崩壊剤の検討を行った。すなわち、実施例1の錠剤において、崩壊剤のクロスポビドンを別の崩壊剤に置換した以下の比較例5~11の錠剤(いずれも崩壊剤を実施例1と同じ10質量%含有する)について、その物理的安定性評価及び溶出特性評価を行った。
クロスポビドン15質量部をそれぞれ表9に示す崩壊剤15質量部に置き換えて、実施例1と同様に製造した。尚、崩壊剤は次の7種類で、クロスカルメロースナトリウム(FMC Biopolymer社製:Ac-Di-Sol)、カルメロースカルシウム(五徳薬品(株)製:ECG-505)、カルメロース(五徳薬品(株)製:NS-300)、低置換度ヒドロキシプロピルセルロース(信越化学工業(株)製:L-HPC LH-21)、カルボキシメチルスターチナトリウム(ROQUTTE社製:グリコリス)、部分アルファー化デンプン(旭化成ケミカルズ(株)製:PCS)、及びトウモロコシデンプン(日本食品化工(株)製:コーンスターチ)を使用した。
実験6と同様に、本製剤において使用可能な崩壊剤の検討を行った。すなわち、実施例13の錠剤において、崩壊剤のクロスポビドンを別の崩壊剤に置換した以下の比較例12~16の錠剤(いずれも崩壊剤を実施例13と同じ10質量%含有する)について、その物理的安定性評価(硬度)及び溶出特性評価を行った。
アナグリプチン100質量部を、ヒドロキシプロピルセルロース水溶液(ヒドロキシプロピルセルロースとして1.6質量部)を用いて造粒した。得られた粒状物を乾燥し、クロスポビドン(BASF社製:コリドンCL)16質量部、D-マンニトール24質量部及び結晶セルロース16質量部を添加し、混合した。次いで、ステアリン酸マグネシウム2.4質量部を添加し混合して、打錠用顆粒を得た。得られた打錠用顆粒を1錠当たり160mgとなるように打錠した。なお、得られた錠剤は1錠当たりアナグリプチンを100mg、クロスポビドンを16mg含有し、錠剤1錠当たりの含有量はそれぞれアナグリプチンが62.5質量%、クロスポビドンが10質量%となる。
実施例13において、クロスポビドン16質量部の代りに、表10に示す崩壊剤16質量部に置き換えて、実施例13と同様に製造した。尚、崩壊剤は次の5種で、カルボキシメチルセルロース(五徳薬品(株)製:NS-300)、カルボキシメチルスターチナトリウム(ROQUTTE社製:グリコリス)、クロスカルメロースナトリウム(FMC Biopolymer社製:Ac-Di-Sol)、低置換度ヒドロキシプロピルセルロース(信越化学工業(株)製:L-HPC LH-21)、及びカルメロースカルシウム(五徳薬品(株)製:ECG-505)を使用した。
以上実験6及び7の試験結果から、アナグリプチンを含有する固形製剤においては、他の崩壊剤では溶出促進作用が得られず、クロスポビドンのみが特異的に、単なる製剤物性の面からでは説明できない顕著に優れた溶出促進作用を示すことが明らかとなった。したがって、アナグリプチン又はその塩、及び崩壊剤としてクロスポビドンを含有する固形製剤は、溶出性の大変優れた製剤となる。この結果から、我々は、アナグリプチン又はその塩、及びクロスポビドンを含有する固形製剤という、課題を解決するための手段の(20)に記載の発明を成すに至った。
本製剤において使用される結晶セルロースの含有量について検討した。すなわち、以下の実施例14~17の錠剤について、その物理的安定性評価及び溶出特性評価を行った。
結晶セルロース(旭化成ケミカルズ(株)製:セオラスKG-802)の添加量及び1錠質量を表11に示す割合に設定し、実施例1と同様に錠剤を製造した。
本錠剤において、結晶セルロースに置き換え可能な賦形剤について検討した。すなわち、実施例1の錠剤において、結晶セルロースを代替物に置換した以下の比較例17~19の錠剤(結晶セルロース代替物を実施例1と同じ20質量%含有する)について、その物理的安定性評価及び溶出特性評価を行った。
実施例1において、結晶セルロース30質量部を表13に示すように、それぞれ、乳糖水和物(DMV社製:乳糖200M)30質量部、D-マンニトール(三菱商事フードテック(株)製:マンニット-P)30質量部、無水リン酸水素カルシウム(協和化学工業(株)製:無水リン酸水素カルシウム)30質量部に置き換えて、実施例1と同様に製造した。
アナグリプチンの含量がどこまで上げられるか検討した。すなわち、アナグリプチンの含量を変えた以下の実施例18,19、及び比較例20について、その物理的安定性評価及び溶出特性評価を行った。
実施例1において、クロスポビドン(BASF社製:コリドンCL)の添加量、結晶セルロース(旭化成ケミカルズ(株)製:セオラスKG-802)の添加量、ステアリン酸マグネシウム(太平化学工業(株)製:ステアリン酸マグネシウム植物性)の添加量、及び1錠質量を表14に示す割合に設定し、実施例1と同様に製した。
実施例1において、クロスポビドン(BASF社製:コリドンCL)の添加量、結晶セルロース(旭化成ケミカルズ(株)製:セオラスKG-802)の添加量、ステアリン酸マグネシウム(太平化学工業(株)製:ステアリン酸マグネシウム植物性)の添加量、及び1錠質量を表14に示す割合に設定し、実施例1と同様に製した。
本発明の錠剤にフィルムコーティングを施し、素錠との物性比較を行った。
表16の配合割合で、実施例1と同様に錠剤を製造した。実施例20が素錠部であり、更にフィルムコーティングを行ったフィルムコーティング錠が実施例21である。
本発明の錠剤にフィルムコーティングを施した、以下の実施例22~26の錠剤各々6錠につき、色彩についての安定性評価を行い、着色剤の効果について調べた。試験は、以下の3つの条件について行った。
条件1:温度40℃、90%相対湿度、開放条件下で5日間保存
条件2:温度60℃、75%相対湿度、開放条件下で3週間保存
条件3:温度40℃、75%相対湿度、無可塑硬質塩化ビニル単層PTP包装して1か月間保存
保存前後の錠剤につき、色差計を用いて、SCE(正反射光除去方式)、L*a*b*表色系にて反射率を測定し、保存後と開始時との差から色差(ΔE=((ΔL*)2+(Δa*)2+(Δb*)2)1/2)を求めた。
実験12の結果に基づき、製剤中の三二酸化鉄類の含有量につき検討した。以下の実施例につき、実験12と同様に、温度60℃、75%相対湿度、開放条件下で1週間保存して、色彩についての安定性評価を行った。
前記実験11の実施例20の素錠を使用して、1錠につき次の表20の組成となるフィルムコーティングを施し、フィルムコーティング錠を作製した。
Claims (22)
- 有効成分としてアナグリプチン又はその塩、崩壊剤としてクロスポビドン、賦形剤として結晶セルロース、及び結合剤を含有し、流動化剤を含まず、前記有効成分及び前記含有成分の一部又は全部を前記結合剤にて湿式造粒した後に圧縮成型して製造される固形製剤。
- 固形製剤の硬度が30N以上、固形製剤20錠を日本薬局方の錠剤の摩損度試験法記載のドラムを用いドラム回転数25rpmにて15分間試験し吸湿水分補正した後の摩損度が1%以下、及び、日本薬局方の溶出試験法による15分間の溶出率が85%以上を示す、請求項1に記載の固形製剤。
- 更に、温度60℃及び相対湿度75%の条件下で21日間の安定性試験の分解生成物量が3%以下を示す、請求項2に記載の固形製剤。
- 前記結合剤が、ヒドロキシプロピルセルロース、ポビドン、ヒプロメロース、プルラン、及びデンプン糊からなる群から選択される1以上の結合剤である、請求項1に記載の固形製剤。
- 前記結合剤がヒドロキシプロピルセルロースである、請求項1に記載の固形製剤。
- 前記アナグリプチン又はその塩の含量が製剤全体の47質量%~83質量%である、請求項1に記載の固形製剤。
- 前記アナグリプチン又はその塩の含量が製剤全体の55質量%~75質量%である、請求項1に記載の固形製剤。
- 前記クロスポビドンの含量が製剤全体の7質量%~35質量%である、請求項1に記載の固形製剤。
- 前記クロスポビドンの含量が製剤全体の8質量%~25質量%である、請求項1に記載の固形製剤。
- 前記結晶セルロースの含量が製剤全体の7質量%~37質量%である、請求項1に記載の固形製剤。
- 前記結晶セルロースの含量が製剤全体の15質量%~30質量%である、請求項1に記載の固形製剤。
- 前記結合剤の含量が製剤全体の0.1質量%~5質量%である、請求項壱に記載の固形製剤。
- 更にフィルムコーティング層を有する、請求項1に記載の固形製剤。
- 前記フィルムコーティング層に三二酸化鉄類を含有する、請求項13に記載の固形製剤。
- アナグリプチン又はその塩を含む粉体混合物を結合剤により造粒した後に圧縮成型して固形製剤を製造する方法であって、少なくともアナグリプチン又はその塩を、結合剤を含む溶液にて湿式造粒して得られた顆粒に、少なくとも、結晶セルロースとクロスポビドンとを添加混合し、得られた混合物を圧縮成型する工程、又は、少なくともアナグリプチン又はその塩と結晶セルロースとクロスポビドンとを混合して得られた混合物を、結合剤を含む溶液にて湿式造粒して得られた顆粒を圧縮成型する工程 を含む、アナグリプチン又はその塩を含有する固形製剤の製造方法。
- 前記固形製剤のアナグリプチン又はその塩の含量が製剤全体の47質量%~83質量%である、請求項15に記載の固形製剤の製造方法。
- 前記結合剤が、ヒドロキシプロピルセルロース、ポビドン、ヒプロメロース、プルラン、及びデンプン糊からなる群から選択される1以上の結合剤である、請求項15に記載の固形製剤の製造方法。
- アナグリプチン又はその塩、及び結晶セルロースを含有する固形製剤。
- 更に、クロスポビドンを含有する、請求項18に記載の固形製剤。
- アナグリプチン又はその塩、及びクロスポビドンを含有する固形製剤。
- アナグリプチン又はその塩、及び三二酸化鉄類を含有する固形製剤。
- 前記固形製剤が、錠剤、カプセル剤、顆粒剤、細粒剤、又は散剤である、請求項18~21のいずれかに記載の固形製剤。
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Cited By (4)
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WO2019004452A1 (ja) * | 2017-06-30 | 2019-01-03 | 興和株式会社 | 医薬組成物 |
WO2019004453A1 (ja) * | 2017-06-30 | 2019-01-03 | 興和株式会社 | 医薬品 |
US11319566B2 (en) | 2017-04-14 | 2022-05-03 | Capsugel Belgium Nv | Process for making pullulan |
US11576870B2 (en) | 2017-04-14 | 2023-02-14 | Capsugel Belgium Nv | Pullulan capsules |
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US11319566B2 (en) | 2017-04-14 | 2022-05-03 | Capsugel Belgium Nv | Process for making pullulan |
US11576870B2 (en) | 2017-04-14 | 2023-02-14 | Capsugel Belgium Nv | Pullulan capsules |
US11878079B2 (en) | 2017-04-14 | 2024-01-23 | Capsugel Belgium Nv | Pullulan capsules |
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US11298340B2 (en) | 2017-06-30 | 2022-04-12 | Kowa Company, Ltd. | Pharmaceutical composition |
US11419855B2 (en) | 2017-06-30 | 2022-08-23 | Kowa Company, Ltd. | Pharmaceutical preparation |
US11730719B2 (en) | 2017-06-30 | 2023-08-22 | Kowa Company, Ltd. | Pharmaceutical composition |
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