JP6722828B2 - フィナステリドを含むマイクロ粒子及びその製造方法 - Google Patents
フィナステリドを含むマイクロ粒子及びその製造方法 Download PDFInfo
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- JP6722828B2 JP6722828B2 JP2019542343A JP2019542343A JP6722828B2 JP 6722828 B2 JP6722828 B2 JP 6722828B2 JP 2019542343 A JP2019542343 A JP 2019542343A JP 2019542343 A JP2019542343 A JP 2019542343A JP 6722828 B2 JP6722828 B2 JP 6722828B2
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- 239000011859 microparticle Substances 0.000 title claims description 127
- 229960004039 finasteride Drugs 0.000 title claims description 81
- DBEPLOCGEIEOCV-WSBQPABSSA-N finasteride Chemical compound N([C@@H]1CC2)C(=O)C=C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H](C(=O)NC(C)(C)C)[C@@]2(C)CC1 DBEPLOCGEIEOCV-WSBQPABSSA-N 0.000 title claims description 81
- 238000004519 manufacturing process Methods 0.000 title claims description 34
- 239000000203 mixture Substances 0.000 claims description 104
- 229920002988 biodegradable polymer Polymers 0.000 claims description 39
- 239000004621 biodegradable polymer Substances 0.000 claims description 39
- 239000003814 drug Substances 0.000 claims description 34
- 238000003756 stirring Methods 0.000 claims description 34
- 229940079593 drug Drugs 0.000 claims description 30
- 229920001606 poly(lactic acid-co-glycolic acid) Polymers 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 22
- 239000003960 organic solvent Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 15
- 239000004094 surface-active agent Substances 0.000 claims description 12
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 5
- 229920002627 poly(phosphazenes) Polymers 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 229920002732 Polyanhydride Polymers 0.000 claims description 4
- 229920000331 Polyhydroxybutyrate Polymers 0.000 claims description 4
- 229920001710 Polyorthoester Polymers 0.000 claims description 4
- 229920001308 poly(aminoacid) Polymers 0.000 claims description 4
- 239000005015 poly(hydroxybutyrate) Substances 0.000 claims description 4
- 229920001610 polycaprolactone Polymers 0.000 claims description 4
- 239000004626 polylactic acid Substances 0.000 claims description 4
- 229950010765 pivalate Drugs 0.000 claims 1
- IUGYQRQAERSCNH-UHFFFAOYSA-N pivalic acid Chemical compound CC(C)(C)C(O)=O IUGYQRQAERSCNH-UHFFFAOYSA-N 0.000 claims 1
- 239000004632 polycaprolactone Substances 0.000 claims 1
- 201000004384 Alopecia Diseases 0.000 description 15
- 230000003676 hair loss Effects 0.000 description 14
- 208000024963 hair loss Diseases 0.000 description 14
- 238000002347 injection Methods 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- -1 polyimino Polymers 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 229960004199 dutasteride Drugs 0.000 description 6
- JWJOTENAMICLJG-QWBYCMEYSA-N dutasteride Chemical compound O=C([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)N[C@@H]4CC3)C)CC[C@@]21C)NC1=CC(C(F)(F)F)=CC=C1C(F)(F)F JWJOTENAMICLJG-QWBYCMEYSA-N 0.000 description 6
- 238000013268 sustained release Methods 0.000 description 6
- 239000012730 sustained-release form Substances 0.000 description 6
- 230000002776 aggregation Effects 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000006186 oral dosage form Substances 0.000 description 5
- NVKAWKQGWWIWPM-ABEVXSGRSA-N 17-β-hydroxy-5-α-Androstan-3-one Chemical compound C1C(=O)CC[C@]2(C)[C@H]3CC[C@](C)([C@H](CC4)O)[C@@H]4[C@@H]3CC[C@H]21 NVKAWKQGWWIWPM-ABEVXSGRSA-N 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 229940124597 therapeutic agent Drugs 0.000 description 4
- 239000002677 5-alpha reductase inhibitor Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229960003473 androstanolone Drugs 0.000 description 3
- 230000002354 daily effect Effects 0.000 description 3
- 238000001647 drug administration Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 210000004761 scalp Anatomy 0.000 description 3
- 230000035807 sensation Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 2
- 229940113178 5 Alpha reductase inhibitor Drugs 0.000 description 2
- MUMGGOZAMZWBJJ-DYKIIFRCSA-N Testostosterone Chemical compound O=C1CC[C@]2(C)[C@H]3CC[C@](C)([C@H](CC4)O)[C@@H]4[C@@H]3CCC2=C1 MUMGGOZAMZWBJJ-DYKIIFRCSA-N 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 2
- 238000000708 deep reactive-ion etching Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 229960003750 ethyl chloride Drugs 0.000 description 2
- 210000003754 fetus Anatomy 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000003779 hair growth Effects 0.000 description 2
- 229940088597 hormone Drugs 0.000 description 2
- 239000005556 hormone Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 210000002540 macrophage Anatomy 0.000 description 2
- 230000010534 mechanism of action Effects 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 1
- 229940124602 FDA-approved drug Drugs 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000037374 absorbed through the skin Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 201000002996 androgenic alopecia Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 229940067606 lecithin Drugs 0.000 description 1
- 230000003273 male-pattern hair loss Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000007721 medicinal effect Effects 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 210000002307 prostate Anatomy 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 210000001732 sebaceous gland Anatomy 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229960003604 testosterone Drugs 0.000 description 1
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- A61K47/50—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/56—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
- A61K47/59—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes
- A61K47/593—Polyesters, e.g. PLGA or polylactide-co-glycolide
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- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
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- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
- A61K9/1605—Excipients; Inactive ingredients
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Description
ポリ(ラクチド−コ−グリコリド)(PLGA)及びフィナステリドをジクロロメタン(dichloromethane)に溶解して第1混合物を製造した。この時、第1混合物内のポリ(ラクチド−コ−グリコリド)は15重量%であり、ポリ(ラクチド−コ−グリコリド)及びフィナステリドの重量比は4:1である。
ポリ(ラクチド−コ−グリコリド)及びフィナステリドの重量比を9:1に変更したことを除いては、実施例1と同様にして製造した。
ポリ(ラクチド−コ−グリコリド)及びフィナステリドの重量比を2:1に変更したことを除いては、実施例1と同様にして製造した。
ポリ(ラクチド−コ−グリコリド)及びフィナステリドの重量比を12:1に変更したことを除いては、実施例1と同様にして製造した。
ポリ(ラクチド−コ−グリコリド)及びフィナステリドの重量比を15:1に変更したことを除いては、実施例1と同様にして製造した。
ポリ(ラクチド−コ−グリコリド)及びフィナステリドの重量比を20:1に変更したことを除いては、実施例1と同様にして製造した。
マイクロ粒子を第2混合物が入れられた水槽内で収集した後、下記表1に示す撹拌条件にて撹拌工程を行ったことを除いては、実施例1と同様にして製造した。
1.インビボ 薬物動態(PK)
実施例1〜6のマイクロ粒子約100mgを、内容量120mLのガラス製試験容器に入れ、放出試験液100mLを満たした。薬物放出に対する加速実験条件として、45℃の水浴に入れ、振幅4cm及び振とう回数120回/分で往復して薬物放出実験を行った。検体は、瓶をよく揺らして混合した後に1mLを採取した。13000rpmで3分間遠心分離した後、上層液を分取して高性能液体クロマトグラフィーで分析した。薬物放出実験の結果は、下記表2及び図3のとおりである(単位:ng/mL)。
撹拌条件に応じたマイクロ粒子の性状を検討するために、実施例1及び7〜11の条件下で製造されたマイクロ粒子の性状をSEM写真にて検討した。その結果は、下記表3のとおりである。
Claims (10)
- 1)生分解性高分子及びフィナステリドを有機溶媒に溶解させて第1混合物を製造するステップ、
2)界面活性剤を水に溶解させて第2混合物を製造するステップ、
3)前記1)ステップの第1混合物を直線方向のマイクロチャネルに注入して流れるようにするステップ、
4)前記2)ステップの第2混合物を、前記3)ステップの第1混合物が流れる直線方向のマイクロチャネルと交差点を形成することができるように両側面又は一側面に形成されたマイクロチャネルに注入して流れるようにし、
前記第1混合物の直線方向の流れと前記第2混合物の流れとが交差して、球状の生分解性高分子粒子にフィナステリド薬物が均一に分布している形態のマイクロ粒子を製造するステップ、
5)前記4)ステップの交差点において生成されたマイクロ粒子を収集するステップ、
6)前記5)ステップで収集されたマイクロ粒子を撹拌して、前記マイクロ粒子に存在する有機溶媒を蒸発させて除去するステップ、及び
7)前記6)ステップのマイクロ粒子を洗浄及び乾燥するステップ
を含み、
前記マイクロ粒子の粒子平均直径は20μm〜70μmであり、
前記6)ステップは、
6−1)14℃〜16℃で1時間〜2時間、800rpm〜1200rpmの速度で1次撹拌するステップ、
6−2)前記1次撹拌ステップ後、19℃〜21℃で0.5時間〜1.5時間、800rpm〜1200rpmの速度で2次撹拌するステップ、及び
6−3)前記2次撹拌ステップ後、24℃〜26℃で0.5時間〜1.5時間、800rpm〜1200rpmの速度で3次撹拌するステップ
を含む、フィナステリドを含むマイクロ粒子の製造方法。 - 前記1)ステップの第1混合物は、生分解性高分子を10重量%〜20重量%で含む、請求項1に記載のフィナステリドを含むマイクロ粒子の製造方法。
- 前記1)ステップの第1混合物は、生分解性高分子及びフィナステリドを4:1〜15:1の重量比で含む、請求項1に記載のフィナステリドを含むマイクロ粒子の製造方法。
- 前記生分解性高分子は、ポリ乳酸、ポリラクチド、ポリ(乳酸−コ−グリコール酸)、ポリ(ラクチド−コ−グリコリド)(PLGA)、ポリホスファゼン、ポリイミノカルボネート、ポリホスホエステル、ポリアンヒドリド、ポリオルトエステル、ポリカプロラクトン、ポリヒドロキシバレート、ポリヒドロキシブチレート、ポリアミノ酸及びこれらの組み合わせからなる群より選択される、請求項1に記載のフィナステリドを含むマイクロ粒子の製造方法。
- 前記1)ステップの有機溶媒は、ジクロロメタン(dichloromethane)である、請求項1に記載のフィナステリドを含むマイクロ粒子の製造方法。
- 前記2)ステップの第2混合物は、界面活性剤を0.2重量%〜0.3重量%で含む、請求項1に記載のフィナステリドを含むマイクロ粒子の製造方法。
- 前記3)ステップにおいて、第1混合物を直線方向のマイクロチャネルに600mbar〜1000mbarの圧力で注入する、請求項1に記載のフィナステリドを含むマイクロ粒子の製造方法。
- 前記4)ステップにおいて、第2混合物を、第1混合物が流れる直線方向のマイクロチャネルと交差点を形成することができるように両側面又は一側面に形成されたマイクロチャネルに注入し、
前記第2混合物を1200mbar〜1600mbarの圧力で注入する、請求項1に記載のフィナステリドを含むマイクロ粒子の製造方法。 - 前記5)ステップにおいて、第2混合物が入れられた水槽内にマイクロ粒子を収集する、請求項1に記載のフィナステリドを含むマイクロ粒子の製造方法。
- 前記3)ステップ及び前記4)ステップのマイクロチャネルはウェハの表面に形成されたものであり、
前記マイクロチャネルの平均直径は40μm〜100μmである、請求項1に記載のフィナステリドを含むマイクロ粒子の製造方法。
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