WO2013115201A1 - 非水性液体組成物 - Google Patents
非水性液体組成物 Download PDFInfo
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- WO2013115201A1 WO2013115201A1 PCT/JP2013/051951 JP2013051951W WO2013115201A1 WO 2013115201 A1 WO2013115201 A1 WO 2013115201A1 JP 2013051951 W JP2013051951 W JP 2013051951W WO 2013115201 A1 WO2013115201 A1 WO 2013115201A1
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- tocopherol
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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
- A61K9/127—Liposomes
- A61K9/1274—Non-vesicle bilayer structures, e.g. liquid crystals, tubules, cubic phases, cochleates; Sponge phases
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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
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
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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
- A61K31/513—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim having oxo groups directly attached to the heterocyclic ring, e.g. cytosine
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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
- A61K31/56—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
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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
- A61K47/22—Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
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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
- A61K47/24—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing atoms other than carbon, hydrogen, oxygen, halogen, nitrogen or sulfur, e.g. cyclomethicone or phospholipids
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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
- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
- A61K9/0024—Solid, semi-solid or solidifying implants, which are implanted or injected in body tissue
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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
-
- 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
- A61K9/0051—Ocular inserts, ocular implants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P27/00—Drugs for disorders of the senses
- A61P27/02—Ophthalmic agents
Definitions
- the present invention relates to a drug-dissolving non-aqueous liquid composition containing a drug, dioleylphosphatidylcholine, tocopherol and an organic solvent, and an injection and an ophthalmic preparation containing the non-aqueous liquid composition.
- Dioleylphosphatidylcholine (hereinafter “DOPC”) is an amphiphilic substance having a structure in which two oleic acids, glycerin, phosphoric acid and choline are combined.
- DOPC dioleylphosphatidylglycerin
- DOPE dioleylphosphatidylethanolamine
- PC phosphatidylcholine
- SPC Soy lecithin
- GMO glyceryl monooleate
- Patent Document 1 discloses a depot preparation containing SPC and dioleylglycerol (hereinafter referred to as “GDO”), and International Publication No. 2005/117830 (Patent Document 2).
- GDO SPC and dioleylglycerol
- Patent Document 2 Discloses a depot preparation containing PC and GDO, and a depot preparation containing PC and tocopherol (hereinafter “VE”).
- the depot formulations disclosed in Patent Documents 1 and 2 are insufficient in sustained release of a drug in a living body on the premise of administration to a living body such as a vitreous body, and may swell in the living body. .
- the present invention has been made in order to solve the above-mentioned problems, and the object of the present invention is to utilize the characteristics of DOPC, which is an amphiphilic substance, so that administration is performed in a liquid state before administration. Then, an object is to search for a non-aqueous preparation having a drug sustained-release effect in a depot (liquid crystal state) in vivo.
- DOPC amphiphilic substance
- a non-aqueous liquid composition containing a drug, DOPC, VE, and an organic solvent and having a mixing concentration ratio of DOPC and VE in a specific range is phosphoric acid while being a viscous liquid. It has been found that a non-lamellar liquid crystal is formed upon contact with a buffer solution or a vitreous humor, and as a result, the drug is continuously released in the living body for a long period of time. That is, the present invention is as follows.
- a drug-dissolving non-aqueous liquid composition containing a drug, DOPC, VE and an organic solvent 1) The mixing concentration ratio of the DOPC and the VE is in the range of 75/25 to 25/75, 2) The concentration of the DOPC is in the range of 15 to 85% (w / w), 3) The blending concentration of the VE is in the range of 15 to 85% (w / w), 4) A non-aqueous liquid composition that changes phase to a non-lamellar liquid crystal upon contact with water, phosphate buffer, body fluid, tear fluid or vitreous humor.
- a drug-dissolving non-aqueous liquid composition containing a drug, DOPC, VE and an organic solvent 1) The concentration ratio of the DOPC and the VE is in the range of 70/30 to 30/70, 2) The concentration of the DOPC is in the range of 20 to 80% (w / w), 3) The blending concentration of the VE is in the range of 20 to 80% (w / w), 4) A non-aqueous liquid composition that changes phase to a non-lamellar liquid crystal upon contact with water, phosphate buffer, body fluid, tear fluid or vitreous humor.
- the non-aqueous liquid composition of the present invention is a non-lamellar liquid crystal when it comes into contact with a phosphate buffer solution, a vitreous humor, etc., as is apparent from the phase behavior test described below and the drug release characteristics test in vitro and in vivo.
- a hard depot As a result of the phase transition to a hard depot, it has the property of stably releasing the drug stably over a long period of time.
- the non-aqueous liquid composition of the present invention exhibits excellent drug sustained-release effect by phase transition to non-lamellar liquid crystal after administration, while it is a liquid that is easy to handle before administration to a living body. Is expected to do.
- the non-aqueous liquid composition of the present invention using DOPC as the amphiphile can be administered into the vitreous body, for example. Since it has been confirmed that it does not swell in water for more than 4 months, there is no risk of side effects such as visual field impairment and vision loss associated with swelling.
- the drug in the non-aqueous liquid composition of the present invention is not particularly limited, but is desirably a drug that dissolves in a non-aqueous liquid composed of DOPC, VE, and an organic solvent.
- Preferred drugs include, for example, steroids such as hydrocortisone, triamcinolone, fluocinolone and dexamethasone, prostaglandins such as isopropyl unoprostone, immunosuppressants such as cyclosporine and rapamycin, nonsteroidal anti-inflammatory agents such as indomethacin and blumfenac, pazopanib , SU5416, balatinib, ranibizumab, bevacizumab and other angiogenesis inhibitors, JP-A 2006-96739, JP-A 2011-37844, JP-A 2005-232149, JP-A 2006-2733851, JP-A 2006 VEGF inhibitors described in JP-A-306861, JP-A-2008-2662
- Selective glucocorticoid receptor agonists such as, anticancer agents such as fluorouracil, Janus kinase inhibitors such as tofacitinib, protein kinase inhibitors such as ruboxistaurine mesylate, and the like.
- the compounding concentration of the drug in the non-aqueous liquid composition of the present invention is not particularly limited because it varies depending on the type of the drug, but is preferably in the range of 0.1 to 60% (w / w). It is more preferably in the range of 1 to 10% (w / w), and particularly preferably in the range of 0.2 to 8% (w / w).
- DOPC in the non-aqueous liquid composition of the present invention is an amphiphilic substance, and its concentration is in the range of 15 to 85% (w / w), preferably in the range of 20 to 80% (w / w). It is.
- VE in the non-aqueous liquid composition of the present invention means ⁇ -tocopherol (vitamin E), ⁇ -tocopherol, ⁇ -tocopherol, and may be a tocopherol derivative such as tocopherol acetate, tocopherol nicotinate, and tocopherol succinate. .
- the concentration of VE in the non-aqueous liquid composition of the present invention is in the range of 15 to 85% (w / w), preferably in the range of 20 to 80% (w / w).
- the blending concentration ratio of DOPC and VE in the non-aqueous liquid composition of the present invention is in the range of 75/25 to 25/75, preferably in the range of 70/30 to 30/70, more preferably 70/30. Within the range of ⁇ 35/65. From the results of the phase behavior test described later, if the blending concentration ratio of DOPC and VE is within such a range, it is a viscous liquid but non-lamellar liquid crystal by contacting with phosphate buffer or vitreous humor. It was confirmed that a solid depot was formed by phase transition to.
- non-lamellar liquid crystal refers to a liquid crystal in a form that does not take a lamellar structure (layered structure) among liquid crystal states that are intermediate between a liquid and a solid. ) And the like. Whether or not the phase transition to non-lamellar liquid crystal is observed with a polarizing microscope, for example, in the case of reverse hexagonal liquid crystal, it exhibits an anisotropic streak pattern or geometric pattern to show birefringence, In the case of an inverse cubic liquid crystal, since it does not show birefringence, it can be confirmed by a dark field.
- the non-aqueous liquid composition of the present invention is 70 days or more in the results of the in vitro drug release characteristics test described below, and 12 weeks (84 days) in the results of the in vivo drug release characteristics test described below. It has been confirmed that it has the property of stably releasing the drug over time and is useful as a depot preparation.
- the stable drug sustained-release characteristic of the non-aqueous liquid composition of the present invention is an effect that can be achieved for the first time when the concentration ratio of DOPC and VE is within the above-described range.
- the organic solvent used in the non-aqueous liquid composition of the present invention is preferably a pharmaceutically acceptable organic solvent, such as a lower alcohol such as ethanol, a polyhydric alcohol such as propylene glycol or glycerin, a polyethylene glycol such as PEG 400, Examples include benzyl alcohol, dimethylacetamide (DMA), dimethyl sulfoxide (DMSO) and the like. Of these, ethanol, benzyl alcohol, polyethylene glycol or dimethylacetamide is preferable.
- the compounding concentration of the organic solvent in the non-aqueous liquid composition of the present invention is not particularly limited, but is preferably in the range of 1 to 50% (w / w), and is preferably in the range of 3 to 30% (w / w). It is more preferable that
- the non-aqueous liquid composition of the present invention is desirably administered parenterally, and examples of the dosage form include solutions, injections and the like, and these can be formulated using a widely used technique. it can.
- surfactants such as polyoxyethylene sorbitan monooleate, polyoxy stearate 40, polyoxyethylene hydrogenated castor oil, stabilizers such as sodium edetate, benzalkonium chloride, parabens
- the non-aqueous liquid composition of the present invention can be used as an injection or an ophthalmic preparation containing the composition.
- Phase behavior test A phosphate buffer was added to a composition in which the blending concentration ratio of dioleylphosphatidylcholine (DOPC) and tocopherol (VE) was changed, and the phase behavior was examined.
- DOPC dioleylphosphatidylcholine
- VE tocopherol
- Table 1 shows the appearance and phase behavior after addition of the phosphate buffer.
- compositions 4 to 8 included in the present invention form non-lamellar liquid crystals Q2 or H2, and thus form a depot when administered in vivo.
- compositions 1 to 3 and 9 to 11 which are not included in the present invention do not form liquid crystals, and thus are considered not to form a deposit even when administered in vivo.
- Formulation Examples 1 to 6 and Comparative Examples 1 to 4 (1) Formulation Example 1 About 980 mg of ethanol (EtOH) was added to 20 mg of hydrocortisone (HC), and the mixture was heated to 60 ° C. and stirred until dissolved (2% HC solution). This 50 mg of 2% HC solution was added to 225 mg of DOPC, heated to 70 ° C. and dissolved with stirring. After dissolution, 225 mg of VE was added, and the mixture was heated again to 70 ° C. and stirred until dissolved to prepare a DOPC preparation containing 0.2% HC.
- EtOH ethanol
- HC hydrocortisone
- Formulation Example 3 A 0.2% FA-containing DOPC preparation was prepared in the same manner as in Preparation Example 1 except that 20 mg of fluocinolone acetonide (FA) was used instead of HC.
- F fluocinolone acetonide
- Comparative Example 2 50 mg of 2% TA solution prepared in Comparative Example 1 was added to 90 mg of SPC, and the mixture was heated to 70 ° C. and dissolved with stirring. After dissolution, 90 mg of dioleylglycerol (GDO) was added, and the mixture was heated again to 70 ° C. and stirred until dissolved to prepare an SPC preparation containing 0.2% TA.
- GDO dioleylglycerol
- Table 2 shows the phase behavior of Formulation Examples 1-6.
- the numerical value of each component of Table 2 shows% (w / w).
- Table 3 shows the phase behavior of Comparative Examples 1 to 4.
- each component of Table 3 shows% (w / w).
- the in vitro drug release characteristics of each formulation are shown in Table 5.
- the cumulative drug release rate (%) in Table 5 is an average value of 3 cases each, and “ND” indicates that it is below the detection limit.
- compositions formed hard depots composed of non-lamellar liquid crystals, while compositions containing DOPC did not swell in water, whereas compositions containing DOPG, DOPE or SPC were in water. Swelling was observed.
- the numerical value of each component of Table 8 shows% (w / w).
- the DOPC preparation is suitable for administration to the vitreous body or body fluid.
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Abstract
Description
1)前記DOPCと前記VEの配合濃度比が75/25~25/75の範囲にあり、
2)前記DOPCの配合濃度が15~85%(w/w)の範囲内であり、
3)前記VEの配合濃度が15~85%(w/w)の範囲内であり、
4)水、リン酸緩衝液、体液、涙液または硝子体液に接触することにより非ラメラ液晶に相変化する、非水性液体組成物。
1)前記DOPCと前記VEの配合濃度比が70/30~30/70の範囲にあり、
2)前記DOPCの配合濃度が20~80%(w/w)の範囲内であり、
3)前記VEの配合濃度が20~80%(w/w)の範囲内であり、
4)水、リン酸緩衝液、体液、涙液または硝子体液に接触することにより非ラメラ液晶に相変化する、非水性液体組成物。
(5)(1)~(3)記載の非水性液体組成物を含む眼科用製剤。
ジオレイルフォスファチジルコリン(DOPC)とトコフェロール(VE)の配合濃度比を変化させた組成物にリン酸緩衝液を添加して相挙動を検討した。
500mg/mLとなるようにDOPCにメタノールを加えて溶解し、また、500mg/mLとなるようにVEにメタノールを加えて溶解した。調製したDOPC溶液およびVE溶液を下記表1に示す割合でそれぞれ混ぜ合わせた後、窒素気流下でメタノールを除去して、24時間以上減圧下で保存した。保存後、この組成物にリン酸緩衝液(pH7.4)を加えて混ぜ合わせ、その外観および相挙動を偏光顕微鏡(LICA社製LEICA DMLB)を用いて確認した。なお、リン酸緩衝液は、DOPC/VE中のリン酸緩衝液濃度が45%(w/w)となるまで5%(w/w)ずつ加えた。
リン酸緩衝液を添加後の外観および相挙動を表1に示す。
表1より、本発明に包含される組成物4~8については、非ラメラ液晶Q2またはH2を形成するので、生体内に投与すればデポを形成することが明らかとなった。これに対して、本発明に包含されない組成物1~3および9~11は、液晶を形成しないので、生体内に投与してもデポを形成しないと考えられる。
(1)製剤例1
20mgのハイドロコルチゾン(HC)に、約980mgのエタノール(EtOH)を加え、60℃に加温し溶けるまで攪拌した(2% HC溶液)。この50mgの2% HC溶液を225mgのDOPCに加え、70℃に加温して攪拌しながら溶解した。溶解後、225mgのVEを加え、再度70℃に加温して溶けるまで攪拌して、0.2% HC含有DOPC製剤を調製した。
HCに代えて20mgのトリアムシノロンアセトニド(TA)を用いたこと以外は製剤例1と同様の操作をして、0.2% TA含有DOPC製剤を調製した。
HCに代えて20mgのフルオシノロンアセトニド(FA)を用いたこと以外は製剤例1と同様の操作をして、0.2% FA含有DOPC製剤を調製した。
50mgのFAに、約200mgのベンジルアルコール(BzOH)を加え、60℃に加温し溶けるまで攪拌した(20% FA溶液)。この100mgの20% FA溶液を200mgのDOPCに加え、70℃に加温して攪拌しながら溶解した。溶解後、200mgのVEを加え、再度70℃に加温して溶けるまで攪拌して、4% FA含有DOPC製剤を調製した。
6mgのフルオロウラシル(5-FU)を294mgのポリエチレングリコール(PEG)400に加え、70℃に加温し溶けるまで攪拌した(2% 5-FU溶液)。この50mgの2% 5-FU溶液を225mgのDOPCに加え、70℃に加温し攪拌しながら溶解した。溶解後、225mgのVEを加え、再度70℃に加温して溶けるまで攪拌して、0.2% 5-FU含有DOPC製剤を調製した。
6mgの5-FUを294mgのPEG400に加え、70℃に加温し溶けるまで攪拌した(2% 5-FU溶液)。この50mgの2% 5-FU溶液を180mgのDOPCに加え、70℃に加温し攪拌しながら溶解した。溶解後、270mgのトコフェロールを加え、再度70℃に加温して溶けるまで攪拌して、0.2% 5-FU含有DOPC製剤を調製した。
20mgのTAに、約980mgのEtOHを加え、60℃に加温し溶けるまで攪拌した(2% TA溶液)。この50mgの2% TA溶液を225mgの大豆レシチン(SPC)に加え、70℃に加温して攪拌しながら溶解した。溶解後、225mgのVEを加え、再度70℃に加温して溶けるまで攪拌して、0.2% TA含有SPC製剤を調製した。
比較例1で調製した50mgの2% TA溶液を90mgのSPCに加え、70℃に加温して攪拌しながら溶解した。溶解後、90mgのジオレイルグリセロール(GDO)を加え、再度70℃に加温して溶けるまで攪拌して、0.2% TA含有SPC製剤を調製した。
モノオレイン酸グリセリン(GMO)を40℃で加温し溶解した。溶解後、比較例1で調製した50mgの2% TA溶液を225mgのGMOに加え、40℃に加温して攪拌しながら溶解した。溶解後、225mgのVEを加え、再度40℃に加温して溶けるまで攪拌して、0.2% TA含有GMO製剤を調製した。
GMOを40℃で加温し溶解した。溶解後、比較例1で調製した50mgの2% TA溶液を450mgのGMOに加え、約40℃に加温して攪拌しながら溶解して、0.2% TA含有GMO製剤を調製した。
(実験操作)
前記項目〔2〕でそれぞれ調製した製剤例1~6および比較例1~4の各溶液20mgを2mLの0.1M リン酸緩衝液(pH7.4)に投入し、37℃でインキュベートした。全ての製剤は、リン酸緩衝液に投入後、硬いデポを形成した。1日後、偏光顕微鏡を用いて生成されたデポの相挙動を評価した。
製剤例1~6の相挙動を表2に示す。なお、表2の各成分の数値は、%(w/w)を示す。
比較例1~4の相挙動を表3に示す。なお、表3の各成分は、%(w/w)を示す。
製剤例1~6と同様の実験操作を行い、下記表4に示す組成の各製剤(製剤例7~34)を調製し、それらの相挙動を評価した。それらの結果についても表4に示す。なお、表4の各成分の数値は、%(w/w)を示す。
表4より、製剤例7~34は全て、非ラメラ液晶Q2またはH2を形成することが明らかとなった。
(実験操作)
製剤例1~6および比較例1~4にて調製した各溶液20mgを2mLの0.1M リン酸緩衝液(pH7.4)に投入し、37℃でインキュベートした。全ての製剤は、リン酸緩衝液に投入後、硬いデポを形成した。経時的にリン酸緩衝液を回収し、UPLCを用いてリン酸緩衝液中の薬物濃度を測定した。
各製剤のin vitroにおける薬物放出特性を表5に示す。なお、表5中の累積薬物放出率(%)は各3例の平均値であり、「ND」は検出限界以下であることを示す。
表5より、DOPC製剤(製剤例1~6)は、4種類の薬物いずれについても70日間以上持続的に薬物を放出するので、SPC製剤(比較例1、2)およびGMO製剤(比較例3、4)よりも優れた薬物徐放効果を発揮するものと考える。
(実験操作)
トリアムシノロンアセトニド(TA)80mgに、720mgのジメチルアセトアミド(DMA)を加え、溶けるまで攪拌した(10% TA溶液)。この10% TA溶液にDOPC1600mgおよびトコフェロール1600mgを加え、65℃に加温して溶けるまで攪拌して、10% TA含有DOPC製剤(製剤例35)を調製し、リン酸緩衝液に投入後の相挙動を評価した。表6に製剤例35の相挙動を示す。なお、表6の各成分の数値は、%(w/w)である。
本製剤(製剤例35)は、硝子体注射後、12週間(84日)にわたって一定以上のトリアムシノロンアセトニド濃度を維持するので、薬物徐放効果を長期間持続することが予想される。
(実験操作)
下記表8に示すように、両親媒性物質としてDOPC、DOPG、DOPEおよびSPCを各90mg採取し、10mgのEtOHおよび90mgのVEを加えた。約70℃で加温後、攪拌し溶解した。溶解後、各組成物0.1mLを2mLの水に投入し、37℃にてインキュベートした。すべての組成物は、水に投入後、硬いデポを形成した。1日後、偏光顕微鏡を用いて生成されたデポの相挙動を評価した。また、デポが水中で膨潤するかどうかについても評価した。その結果、すべての組成物は非ラメラ液晶からなる硬いデポを形成したが、DOPCを含む組成物は水中で膨潤が認められなかったのに対し、DOPG、DOPEまたはSPCを含む組成物は水中における膨潤が認められた。なお、表8の各成分の数値は、%(w/w)を示す。
水中で膨潤する製剤(組成物)を硝子体内に投与した場合には、患者の視野障害あるいは視力低下を引き起こす可能性があるので、DOPC製剤は硝子体や体液に投与するのに適している。
Claims (6)
- 薬物、ジオレイルフォスファチジルコリン、トコフェロールおよび有機溶媒を含有する薬物溶解型の非水性液体組成物であって、
1)前記ジオレイルフォスファチジルコリンと前記トコフェロールの配合濃度比が75/25~25/75の範囲にあり、
2)前記ジオレイルフォスファチジルコリンの配合濃度が15~85%(w/w)の範囲内であり、
3)前記トコフェロールの配合濃度が15~85%(w/w)の範囲内であり、
4)水、リン酸緩衝液、体液、涙液または硝子体液に接触することにより非ラメラ液晶に相変化する、非水性液体組成物。 - 薬物、ジオレイルフォスファチジルコリン、トコフェロールおよび有機溶媒を含有する薬物溶解型の非水性液体組成物であって、
1)前記ジオレイルフォスファチジルコリンと前記トコフェロールの配合濃度比が70/30~30/70の範囲にあり、
2)前記ジオレイルフォスファチジルコリンの配合濃度が20~80%(w/w)の範囲内であり、
3)前記トコフェロールの配合濃度が20~80%(w/w)の範囲内であり、
4)水、リン酸緩衝液、体液、涙液または硝子体液に接触することにより非ラメラ液晶に相変化する、非水性液体組成物。 - 前記有機溶媒が、エタノール、ベンジルアルコール、ポリエチレングリコールまたはジメチルアセトアミドである請求項1に記載の非水性液体組成物。
- 前記有機溶媒が、エタノール、ベンジルアルコール、ポリエチレングリコールまたはジメチルアセトアミドである請求項2に記載の非水性液体組成物。
- 請求項1~4のいずれかに記載の非水性液体組成物を含む注射剤。
- 請求項1~4のいずれかに記載の非水性液体組成物を含む眼科用製剤。
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CN104080478A (zh) | 2014-10-01 |
US20150011518A1 (en) | 2015-01-08 |
SG10201606271RA (en) | 2016-09-29 |
SG11201404230QA (en) | 2014-10-30 |
EP2810657A4 (en) | 2015-07-29 |
JP2013177372A (ja) | 2013-09-09 |
PH12014501689A1 (en) | 2014-10-20 |
EP2810657B1 (en) | 2016-09-21 |
EP2810657A1 (en) | 2014-12-10 |
EA201491453A1 (ru) | 2014-12-30 |
IN2014DN06911A (ja) | 2015-05-15 |
CA2861261A1 (en) | 2013-08-08 |
TW201336526A (zh) | 2013-09-16 |
KR20150000874A (ko) | 2015-01-05 |
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