JP5380440B2 - メシル酸イマチニブの安定化非結晶形態 - Google Patents
メシル酸イマチニブの安定化非結晶形態 Download PDFInfo
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- JP5380440B2 JP5380440B2 JP2010511312A JP2010511312A JP5380440B2 JP 5380440 B2 JP5380440 B2 JP 5380440B2 JP 2010511312 A JP2010511312 A JP 2010511312A JP 2010511312 A JP2010511312 A JP 2010511312A JP 5380440 B2 JP5380440 B2 JP 5380440B2
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- imatinib mesylate
- amorphous form
- amorphous
- cyclodextrin
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- 239000000600 sorbitol Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 150000003900 succinic acid esters Chemical class 0.000 description 1
- 125000004964 sulfoalkyl group Chemical group 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 229960002622 triacetin Drugs 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
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- 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
- A61K31/506—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
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- A61K47/34—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
- A61K47/40—Cyclodextrins; Derivatives thereof
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- A61K9/141—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers
- A61K9/146—Intimate drug-carrier mixtures characterised by the carrier, e.g. ordered mixtures, adsorbates, solid solutions, eutectica, co-dried, co-solubilised, co-kneaded, co-milled, co-ground products, co-precipitates, co-evaporates, co-extrudates, co-melts; Drug nanoparticles with adsorbed surface modifiers with organic macromolecular compounds
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- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
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- A61K9/4825—Proteins, e.g. gelatin
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Description
分子が異なる結晶多形を形成するように操作できることは既知である。多形は同じ元素組成を有するが、例えば安定性または溶解性のような異なる固体状態特性を示す。
本発明は、特にメシル酸イマチニブの非結晶形態を安定化する製剤手段に関する。本発明の製剤手段は、特に固体分散体、シクロデキストリン複合体、および選択した賦形剤との共粉砕から選択される。ここに記載の製剤手段は、非結晶メシル酸イマチニブを含む、錠剤、懸濁液、散剤、サシェット剤、カプセルまたは坐薬のような医薬組成物の製造のための出発物質として使用できる。使用する具体的組成物によって、これらの組成物は、例えば、経口、経直腸、膣内にまたは吸入により適用できる。
本発明の固体分散体は、非結晶メシル酸イマチニブおよびセルロース誘導体、ポリビニルピロリドン、種々の分子量のポリエチレングリコール類、ポリエチレン−/ポリプロピレン−/ポリエチレン−オキシドブロックコポリマー類およびポリメタクリレート類から選択される少なくとも1種のさらなる賦形剤を含む。セルロース誘導体の代表例は、ヒドロキシプロピルメチルセルロース(HPMC)、ヒドロキシプロピルセルロース(HPC)、メチルセルロース(MC)、酢酸フタル酸セルロース(CAP)、ヒドロキシプロピルメチルセルロースフタレート(HPMC−P)、ヒドロキシルプロピルメチルセルロースアセテートスクシネート(HPMC−AS)、カルボキシメチルエチルセルロース(CMEC)を含む。固体分散体製剤における他の適当な賦形剤は、ポリビニルアルコール(PVA)およびPVPまたは他のポリマーとのそのコポリマー類、ポリアクリレート類、ウレア、キトサンおよびキトサングルタメート、ソルビトールまたはマンニトールのような他のポリオール類を含み、これに限定されない。
本発明に従う製剤手段として有用なシクロデキストリンメシル酸イマチニブ複合体は、非結晶メシル酸イマチニブ、少なくとも1種の例えばβ−シクロデキストリンまたはα−シクロデキストリンのようなシクロデキストリン、および所望により少なくとも1種のさらなる賦形剤を含む。適当なβ−シクロデキストリン類の例は、メチル−β−シクロデキストリン、ジメチル−β−シクロデキストリン、ヒドロキシプロピル−β−シクロデキストリン、グリコシル−β−シクロデキストリン(cyclodexterin)、マルトシル−β−シクロデキストリン、スルホ−β−シクロデキストリン、β−シクロデキストリンのスルホ−アルキルエーテル類、例えばスルホ−C[1−4]−アルキルエーテル類を含む。α−シクロデキストリン類の例は、グルコシル−α−シクロデキストリンおよびマルトシル−α−シクロデキストリンを含む。
本発明の一つの態様において、非結晶メシル酸イマチニブの安定化のための製剤手段は選択した賦形剤との共粉砕である。かかる態様において、非結晶メシル酸イマチニブを、添加する賦形剤と乾式共製粉または湿式共製粉できる。
メシル酸イマチニブの安定化非結晶形態は価値ある薬理学的特性を有し、例えば、抗腫瘍剤としてまたは再狭窄を処置する薬剤として使用し得る。
1. GIST、
2. 進行慢性骨髄性白血病、
3. 新たに診断された慢性骨髄性白血病、
4. 小児フィラデルフィア染色体陽性慢性骨髄性白血病、
5. フィラデルフィア染色体陽性急性リンパ性白血病(ALL)、
6. 多形神経膠芽腫、好ましくはヒドロキシウレアと組み合わせて、
7. 隆起性皮膚線維肉腫(DFSP)、
8. 好酸球増加症候群(HES)、
9. 慢性骨髄単球性白血病(CMML)、および
10. 特発性肺線維症。
(a) メシル酸イマチニブの安定化非結晶形態、
(b) メシル酸イマチニブの非結晶形態および非結晶メシル酸イマチニブを安定化する製剤手段を、所望により少なくとも1種の薬学的に許容される賦形剤と共に含む医薬組成物であって、特に該製剤手段が固体分散体、シクロデキストリン複合体、および選択した賦形剤との共粉砕から選択される医薬組成物;
(c) メシル酸イマチニブの非結晶形態および非結晶メシル酸イマチニブを安定化する製剤手段を、所望により少なくとも1種の薬学的に許容される賦形剤と共に含むカプセル剤であって、50mg〜200mgのメシル酸イマチニブに対応する量の安定化非結晶メシル酸イマチニブを含み、所望により該殻がゼラチンを含みおよび/または、該殻が二酸化チタンを含みおよび/または該殻が赤色酸化鉄を含む、カプセル剤。かかるカプセル剤において、カプセル充填物対カプセル殻の重量比は約100:25〜100:50、特に100:30〜100:40である;
(e) 適当な溶媒中にメシル酸イマチニブの非結晶形態および非結晶メシル酸イマチニブを安定化する湿式共製粉製剤を、所望により少なくとも1種の薬学的に許容される賦形剤と共に含む、特に100mg、400mgまたは800mgのメシル酸イマチニブに対応する量の安定化非結晶メシル酸イマチニブを含む懸濁液;
(f) 転移、手術不能なGIST、進行慢性骨髄性白血病、新たに診断された慢性骨髄性白血病、小児フィラデルフィア染色体陽性慢性骨髄性白血病、フィラデルフィア染色体陽性急性リンパ性白血病(ALL)、多形神経膠芽腫、隆起性皮膚線維肉腫(DFSP)、好酸球増加症候群(HES)、および慢性骨髄単球性白血病(CMML)から選択される疾患の処置用医薬の製造のための、メシル酸イマチニブの安定化非結晶形態の使用;
(h) メシル酸イマチニブの非結晶形態を含む医薬組成物の製造用中間体としてメシル酸イマチニブの非結晶形態を安定化する、製剤手段の使用。
この実施例は、非結晶メシル酸イマチニブの代表的固体分散体組成物を挙げ(表1)、そして本発明の固体分散体の製造を説明する。メシル酸イマチニブ(結晶形態ベータ)を、下記のハイスループット・スクリーニング技術(HTS)を使用して固体分散体として製剤する。一定量のメシル酸イマチニブを最初に適当な溶媒(95%エタノールまたはアセトン:エタノール:水(50:40:10))に溶解して、貯蔵溶液(25mg/mL)を製造する。次いで、適当量のこの溶液(40〜200μL)を96ウェルプレートHTS Crissy Platformの各ウェルに分配して、所望量のメシル酸イマチニブ(1〜5mg)を各ウェルに送達させる。次いで溶媒を蒸発乾固する。一定量の各賦形剤を適当な溶媒(95%エタノールまたはアセトン:エタノール:水(50:40:10))に溶解または懸濁させて、貯蔵溶液(25mg/mL)を製造する。次いで、適当量の賦形剤貯蔵溶液(40〜360μL)を一定量のメシル酸イマチニブを含むウェルに添加する。各ウェルの内容物を混合し、溶媒を蒸発乾固する。96ウェルプレートを、貯蔵前および1ヶ月間、40℃/75%RHで貯蔵後の両方にX線粉末回折(XRPD)を使用して走査し、結晶メシル酸イマチニブの存在をモニターする。
この実施例は、シクロデキストリン−メシル酸イマチニブ複合体の代表的組成物を挙げ(表2)、そして、本発明の組成物の製造を説明する。シクロデキストリン−メシル酸イマチニブ複合体は、実施例1に記載した指示に従うHTS技術に従い、下記の通り僅かに改変して製造する。一定量のメシル酸イマチニブ、各シクロデキストリン、および各さらなる賦形剤をエタノール95%に溶解して、各成分の個々の貯蔵溶液を製造する。次いで、適当量のメシル酸イマチニブの貯蔵溶液を各ウェルに添加し、続いて蒸発乾固し、所望量のメシル酸イマチニブを各ウェル中に得る。適当量のシクロデキストリン貯蔵溶液(β−シクロデキストリンまたはヒドロキシプロピル−β−シクロデキストリン)およびさらなる賦形剤の貯蔵溶液(本製剤に存在するならば)を各ウェルに添加し、続いて蒸発乾固する。96ウェルプレートを、貯蔵前および1ヶ月間、40℃/75%RHで貯蔵後の両方にXRPDを使用して走査して、結晶メシル酸イマチニブの存在をモニターする。
この実施例は、代表的乾式共製粉メシル酸イマチニブ−賦形剤組成物を挙げ(表3)、そして、本発明の組成物の製造を説明する。メシル酸イマチニブ(非結晶形態)を賦形剤と乾燥状態で次の通り製粉する。メシル酸イマチニブおよび賦形剤の混合物(総量2.5g)を、ジルコニアビーズ(5g、直径3mm)と、10分間、卓上攪拌機(bench-top turbula)中で混合し、その後製粉実験を開始する。次いで、適当量のメシル酸イマチニブ/賦形剤/ジルコニアビーズ混合物(3.75g)を、振動ミルの製粉容器に移し、2時間、環境温度および1000rpmで製粉する。最終粉末を、貯蔵前および1ヶ月間、40℃/75%RHで貯蔵後の両方にXRPDで分析する。
この実施例は、湿式共製粉メシル酸イマチニブ−賦形剤組成物を説明し、そして、本発明の組成物の製造を説明する。
メシル酸イマチニブ(非結晶形態)を、分画したココナッツ油(Miglyoil 812(登録商標))中、賦形剤と次の通り共製粉する。次の賦形剤を、80gのMiglyoil 812(登録商標)を含むガラス容器に添加する:
1.92gのPluronic F-68
0.08gのドデシル硫酸ナトリウム(SDS)
得られた混合物を環境温度で、慣用のプロペラミキサーで、賦形剤の均一懸濁液が得られるまで撹拌する。続いて、2gのメシル酸イマチニブを懸濁液に添加し、続いて、均一な分散体が得られるまで撹拌する。得られた懸濁液をDYNO-MILLのガラス容器に移し、170gのガラスビーズ(0.75−1mm)を加える。製粉を、次の操作条件下で6時間行う:撹拌速度3200rpm、水でジャケットを冷却。
最終共製粉産物を、貯蔵前および1ヶ月間、40℃/75%RHで貯蔵後の両方にXRPDで分析する。
この実施例は、溶融押出により製造した非結晶メシル酸イマチニブの代表的固体分散体組成物を挙げ(表4)、そして、本発明の組成物の製造を説明する。
メシル酸イマチニブ(非結晶形態)を、次の通り賦形剤と混合する。50wt%のメシル酸イマチニブおよび50wt%の賦形剤(表4に列記)を含む混合物を杵と臼で製造し、その後を溶融実験を開始する。次いで、この混合物をHaake mini lab押出機の押出容器に移し、Eudragit L100-55およびPVPK30について各々165℃および170℃でx時間処理する。最終押出物を杵と臼を使用して粉砕し、貯蔵前および1ヶ月間および4ヶ月間、40℃/75%RHで貯蔵後にXRPDおよびDSCで分析する。
Claims (3)
- ポリビニルピロリドン、ヒドロキシプロピルメチルセルロース(HPMC)およびケイ酸カルシウムから選択される賦形剤との乾燥共粉砕により安定化された非結晶メシル酸イマチニブを、所望により少なくとも1種の薬学的に許容される担体と共に含む医薬組成物。
- カプセル剤である、請求項1に記載の医薬組成物。
- 錠剤である、請求項1に記載の医薬組成物。
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