JP2023121143A - デスロレリンを含む徐放性注射用組成物 - Google Patents
デスロレリンを含む徐放性注射用組成物 Download PDFInfo
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- JP2023121143A JP2023121143A JP2023020774A JP2023020774A JP2023121143A JP 2023121143 A JP2023121143 A JP 2023121143A JP 2023020774 A JP2023020774 A JP 2023020774A JP 2023020774 A JP2023020774 A JP 2023020774A JP 2023121143 A JP2023121143 A JP 2023121143A
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- Prior art keywords
- deslorelin
- sustained
- microparticles
- injectable composition
- mixture
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- 108700025485 deslorelin Proteins 0.000 title claims abstract description 169
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- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 description 1
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- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
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- 239000011701 zinc Substances 0.000 description 1
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- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
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- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- UJNPHNKJSKIVTE-SCGRZTRASA-L zinc;(2s)-2-amino-5-(diaminomethylideneamino)pentanoate Chemical compound [Zn+2].[O-]C(=O)[C@@H](N)CCCNC(N)=N.[O-]C(=O)[C@@H](N)CCCNC(N)=N UJNPHNKJSKIVTE-SCGRZTRASA-L 0.000 description 1
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 description 1
Classifications
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- A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
- A61K38/08—Peptides having 5 to 11 amino acids
- A61K38/09—Luteinising hormone-releasing hormone [LHRH], i.e. Gonadotropin-releasing hormone [GnRH]; Related peptides
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- 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
- A61K47/34—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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- A—HUMAN NECESSITIES
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- 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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- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- 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
- A61K9/1629—Organic macromolecular compounds
- A61K9/1641—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poloxamers
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Abstract
Description
(式1)
Cmax 1d-28d/Cmax 0-1d
ここで、デスロレリンを含む徐放性注射用組成物をビーグル犬に注射剤として投与し、デスロレリンの血中濃度を測定したものであって、Cmax 1d-28dは、注射剤を投入して1日から28日以内のデスロレリンの最大血中濃度であり、Cmax 0-1d注射剤を投入して1日以内のデスロレリンの最大血中濃度である。
(式1)
Cmax 1d-28d/Cmax 0-1d
ここで、デスロレリンを含む徐放性注射用組成物をビーグル犬に注射剤として投与し、デスロレリンの血中濃度を測定したものであって、Cmax 1d-28dは、注射剤を投入して1日から28日以内のデスロレリンの最大血中濃度であり、Cmax 0-1dは、注射剤を投入して1日以内のデスロレリンの最大血中濃度である。
(式1)
Cmax 1d-28d/Cmax 0-1d
ここで、デスロレリンを含む徐放性注射用組成物をビーグル犬に注射剤として投与し、デスロレリンの血中濃度を測定したものであって、Cmax 1d-28dは、注射剤を投入して1日から28日以内のデスロレリンの最大血中濃度であり、Cmax 0-1dは、注射剤を投入して1日以内のデスロレリンの最大血中濃度である。
(式1)
Cmax 1d-28d/Cmax 0-1d
ここで、デスロレリンを含む徐放性注射用組成物をビーグル犬に注射剤として投与し、デスロレリンの血中濃度を測定したものであって、Cmax 1d-28dは、注射剤を投入して1日から28日以内のデスロレリンの最大血中濃度であり、Cmax 0-1dは、注射剤を投入して1日以内のデスロレリンの最大血中濃度である。
デスロレリンを含むマイクロ粒子の製造
デスロレリンアセテートをメタノール(Methanol)に溶解してAPI混合物を製造した。粘度が0.22dl/gであるPLGAおよびPLAをジクロロメタン(Dichloromethane)に溶解させて生分解性高分子混合物を製造した。前記生分解性高分子混合物中のPLGAおよびPLAの重量比率は1.7対18.3である。
生分解性高分子として粘度が0.37dl/gであるPLAをメタノールに溶解して生分解性高分子混合物を製造し、製造例1と同様の方法でマイクロ粒子を製造した。
生分解性高分子として粘度が0.57dl/gであるPLAをメタノールに溶解して生分解性高分子混合物を製造したことを除き、製造例1と同様の方法でマイクロ粒子を製造した。
粘度が0.22dl/gであるPLGAおよび粘度が0.41dl/gであるPLAをメタノールに溶解させて生分解性高分子混合物を製造し、前記生分解性高分子混合物中のPLGAおよびPLAの重量比率は1.7対18.3であることを除き、製造例1と同様の方法でマイクロ粒子を製造した。
前記製造例1のマイクロ粒子は、1バイアルを基準として、2.0mlの懸濁溶剤に加えた後、均一に懸濁させて皮下注射用組成物として製造した。前記皮下注射用組成物中のデスロレリンアセテートおよび生分解性高分子の重量比率は1:6.6667である。
製造例1のマイクロ粒子および製造例2のマイクロ粒子を1:0.92の重量比率で混合して用いたことを除き、実施例1と同様に皮下注射用組成物を製造した。
製造例1のマイクロ粒子および製造例3のマイクロ粒子を1:0.92の重量比率で混合して用いたことを除き、実施例1と同様に皮下注射用組成物を製造した。
製造例1のマイクロ粒子の代わりに製造例4のマイクロ粒子を混合して用いたことを除き、実施例1と同様に皮下注射用組成物を製造した。
比較例として市中で販売中のSuprelorin 4.7mg Implant(デスロレリンを4.7mg含む)を用いた。
比較例として市中で販売中のSuprelorin 9.4mg Implant(デスロレリンを9.4mg含む)を用いた。
マイクロ粒子の性状の検討
マイクロ粒子の直径を具体的に確認するために、Microtrac粒度分析器を用いて分析を進行させた。
薬物動態学特性評価1
本発明の実施例1および比較例1に対する薬物動態学評価を確認した。
薬物動態学特性評価2
本発明の実施例2および比較例2に対する薬物動態学評価を確認した。
薬物溶出実験
実施例1~4、比較例1および比較例2に対して薬物溶出実験を進行させた。
Claims (12)
- マイクロ粒子を含み、
前記マイクロ粒子は、デスロレリンおよび生分解性高分子を含み、
下記式1による値が1~10である、デスロレリンを含む徐放性注射用組成物:
(式1)
Cmax 1d-28d/Cmax 0-1d
ここで、
前記デスロレリンを含む徐放性注射用組成物をビーグル犬に注射剤として投与し、デスロレリンの血中濃度を測定したものであって、
前記Cmax 1d-28dは、前記注射剤を投入して1日から28日以内のデスロレリンの最大血中濃度であり、
前記Cmax 0-1dは、前記注射剤を投入して1日以内のデスロレリンの最大血中濃度である。 - 前記マイクロ粒子は、下記式2による値が1~2である、請求項1に記載のデスロレリンを含む徐放性注射用組成物:
前記D10は、前記粒子の累積分布における最大値に対して10%に相当する粒子の直径であり、
前記D50は、前記粒子の累積分布における最大値に対して50%に相当する粒子の直径であり、
前記D90は、前記粒子の累積分布における最大値に対して90%に相当する粒子の直径である。 - 前記生分解性高分子は、ポリ乳酸、ポリラクチド、ポリラクティック-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、ポリイミノカーボネート、ポリホスホエステル、ポリアンハイドライド、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、およ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に記載のデスロレリンを含む徐放性注射用組成物。
- 前記生分解性高分子の粘度は、0.1~1.0dl/gである、請求項3に記載のデスロレリンを含む徐放性注射用組成物。
- 前記デスロレリンおよび生分解性高分子は、1:4~1:10の重量比率で含む、請求項1に記載のデスロレリンを含む徐放性注射用組成物。
- 前記注射剤として投与時、標的部位におけるデスロレリンの放出速度が調節され、前記デスロレリンによるテストステロンの抑制効果が1ヶ月以上持続する、請求項1に記載のデスロレリンを含む徐放性注射用組成物。
- 前記注射剤が投与され、10日以後にテストステロンが0.4ng/ml以下に維持されている、請求項1に記載のデスロレリンを含む徐放性注射用組成物。
- 前記注射用組成物は、懸濁溶剤を含む、請求項1に記載のデスロレリンを含む徐放性注射用組成物。
- 1)デスロレリンおよび生分解性高分子を混合して第1混合物を製造するステップと、
2)溶媒に界面活性剤を溶解して第2混合物を製造するステップと、
3)前記第1混合物および第2混合物は交差点が形成された第1マイクロチャネルおよび第2マイクロチャネルにそれぞれ注入して流れるようにして、前記交差点でマイクロ粒子を生成するステップと、
4)前記マイクロ粒子を前記第2混合物の入った水槽内に収集するステップと、
5)前記収集したマイクロ粒子に存在する有機溶媒を除去するステップと、
6)前記有機溶媒の除去されたマイクロ粒子を精製水で洗浄および乾燥するステップと、
7)前記乾燥したマイクロ粒子を懸濁溶剤と混合するステップとを含み、
下記式1による値が1~10である、デスロレリンを含む徐放性注射用組成物の製造方法:
(式1)
Cmax 1d-28d/Cmax 0-1d
ここで、
前記デスロレリンを含む徐放性注射用組成物をビーグル犬に注射剤として投与し、デスロレリンの血中濃度を測定したものであって、
前記Cmax 1d-28dは、前記注射剤を投入して1日から28日以内のデスロレリンの最大血中濃度であり、
前記Cmax 0-1dは、前記注射剤を投入して1日以内のデスロレリンの最大血中濃度である。 - 前記第1混合物を前記第1マイクロチャネルに注入時、700~1,500mbarの圧力条件で注入後、10~30mbar/minの第1条件で圧力を上昇させ、
前記注入圧力条件が900~1,700mbarに到達時、2~8mbar/minの第2条件で圧力を上昇させる、請求項9に記載のデスロレリンを含む徐放性注射用組成物の製造方法。 - 前記第2混合物は、前記第1混合物を前記第1マイクロチャネルに注入する時、圧力条件対比2~4倍の圧力条件で前記第2マイクロチャネルに注入されている、請求項9に記載のデスロレリンを含む徐放性注射用組成物の製造方法。
- 前記5)ステップは、
5-1)15~20℃で20~40分間100~300rpmの速度で1次撹拌するステップと、
5-2)30~40℃で60~120分間100~300rpmの速度で2次撹拌するステップと、
5-3)40~45℃で4~8時間100~300rpmの速度で3次撹拌するステップとを含む、請求項9に記載のデスロレリンを含む徐放性注射用組成物の製造方法。
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