JP2011173913A - 注射可能な医薬調製剤の製法 - Google Patents
注射可能な医薬調製剤の製法 Download PDFInfo
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Abstract
【解決手段】本発明は、作用物質、スペーサー分子及び少なくとも1種の蛋白質結合性分子から成り、身体に加えた後に、蛋白質結合性分子を介して体液−又は組織成分に共有結合する、治療的及び/又は診断的に有効な物質を含有する注射可能な医薬調製剤の製法に関し、従って、pH‐依存的、加水分解的又は酵素的に身体中で、作用物質の遊離下に分解可能である作用物質の輸送形が存在する。
【選択図】なし
Description
HOOC‐基を有する作用物質は、次のようにして誘導体化される:
DOXO‐HYDの製造
次に記載した薬物学的活性物質(略してDOXO‐HYD)は、細胞分裂抑制剤ドキソルビシン、蛋白質結合性分子PMとしてのマレインイミド基及びスペーサー分子SMとしてのフェニルアセチルヒドラゾンスペーサーから成る。ドキソルビシンとスペーサー分子SMとの間の結合は、酸に不安定なカルボキシヒドラゾン結合である:
ヒト血漿へのDOXO‐HYDの結合
DOXO‐HYDが血管に入った後に、血漿蛋白質、有利に血漿アルブミンへの結合が起こり、従って、DOXO‐HYDは、特に、酸に不安定なアルブミン‐ドキソルビシン‐複合体として存在する。
生体内でのDOXO‐HYDの有効性
後記の生物学的データは、生体内でのDOXO‐HYDの有効性を、遊離ドキソルビシンに比較して明らかにする:所謂、RENCA(renal cell carcinoma)‐モデルで、ドキソルビシン及びDOXO‐HYDを、ほぼ等毒用量で、抗腫瘍効果に関して相互に比較した(左腎臓で腎臓癌細胞約1百万個の注射10日後の静脈内治療)。
治療:10、13、17及び20日間、静脈内(i.v.)、実験終了24日
ヒト血漿中のアルブミンへのDOXO‐EMHCの結合
下記の構造:
ヒト血漿と共に1分間恒温保持した後の、MMP9によって分解可能なドキソルビシン‐マレインイミド‐ペプチド‐誘導体(2)のアルブミンへの結合
ドキソルビシン‐マレインイミド‐ペプチド‐誘導体(2)を、次の反応式により製造した:
DMF3ml中のドキソルビシン17.1mgのやや混濁した溶液に、DMF500μl中に溶かした1(トリフルオルアセテート塩として)25mg、DMF200μl中に溶かしたO‐ベンゾトリアゾール‐N,N,N’,N’, ‐テトラメチルウロニウムヘキサフルオルホスフェート(HPTU)33.5mg、DMF100μl中に溶かしたヒドロキシベンゾトリアゾール水和物11.9mg及びN‐メチルモルホリン16.2μlを添加し、この成分を、引続き18時間室温で暗所で撹拌する。DMFを高真空で除去し、固形物をメタノール20ml中に入れ、濾過し、真空中で1mlに濃縮させる。珪酸ゲルを通す精製(酢酸エステル/メタノール2/1)後に、2 5mgが得られる。
2(Mr1374)1.4mgを、燐酸塩緩衝液(NaCl0.15モル、燐酸ナトリウム0.004モル、pH6.5)1.0ml中に、室温で溶かす(溶液1000マイクロモル)。この溶液300μlをヒト血漿1.0mlと共に、60秒間37℃で恒温保持し、引続き、試料を、弱陰イオン交換体(POROS(R)の)を通して分離させる場合に、大部分の2がアルブミンに結合していることが明らかである(下記のクロマトグラムを参照)。
ヒト血漿中のアルブミンへのフルオレセインマレインイミドの結合
Claims (19)
- 注射可能な担体液中に溶かされる治療的及び/又は診断的に有効な物質を含有する注射可能な医薬調製剤を製造するために、治療的及び/又は診断的に有効な物質として、スペーサーによって結合されている作用物質及び少なくとも1種の共有的蛋白質結合性分子基から成る化合物を使用し、この際、スペーサー又は作用物質とスペーサーとの間の結合は、pH‐依存的、加水分解的又は酵素的に身体中で分解可能であることを特徴とする、注射可能な医薬調製剤の製法。
- スペーサー又は作用物質とスペーサーとの間の結合は、身体中で、作用物質又は作用物質の誘導体の遊離下に分解可能である、請求項1に記載の方法。
- 作用物質は、細胞分裂抑制剤、サイトカイン、免疫抑制剤、ウイルス分裂抑制剤、抗リウマチ剤、鎮痛剤、抗炎症剤、抗生物質、抗菌剤、シグナル伝達抑制剤、血管新生抑制剤又はプロテアーゼ抑制剤である、請求項1又は2に記載の方法。
- 作用物質は、アントラサイクリン、窒素離脱誘導体、アルキル化剤、プリン‐又はピリミジン拮抗剤、葉酸拮抗剤、タキサン、カンプトテシン、ポドフィロトキシン誘導体、ビンカアルカロイド、カリチェアミシン、マイタンシノイド又はシス‐立体配置の白金(II)‐錯体の群から選択されている、請求項1、2又は3に記載の方法。
- 診断的に有効な物質は、1種以上の放射性核種、1種以上の放射性核種を包含するリガンド、1種以上の陽電子放射剤、1種以上のNMR‐造影剤、1種以上の蛍光化合物又は/及び1種以上の近IR‐範囲の造影剤を有する、請求項1から4までのいずれか1項に記載の方法。
- 蛋白質結合性分子は、場合により置換されていてよい、マレインイミド基、ハロゲンアセトアミド基、ハロゲンアセテート基、ピリジルジチオ‐基、N‐ヒドロキシスクシンイミドエステル基、イソチオシアネート基、ジスルフィド基、ビニルカルボニル基、アジリジン基又はアセチレン基である、請求項1から5までのいずれか1項に記載の方法。
- スペーサーは、部分的に酸素原子によって代えられていてよく、場合により置換されていてよい1〜12個の炭素原子を有する脂肪族炭素鎖及び/又は脂肪族炭素環及び/又は少なくとも1種の芳香族体を含有する有機分子基である、請求項1から6までのいずれか1項に記載の方法。
- 作用物質とスペーサーとの間の結合又は蛋白質結合性分子基は、少なくとも1個のペプチド結合を含有する、請求項1から7までのいずれか1項に記載の方法。
- 付加的に担体分子を使用する、請求項1から8までのいずれか1項に記載の方法。
- 担体分子と治療的及び/又は診断的に有効な物質とを一緒に合わせることを生体外で行なう、請求項9に記載の方法。
- 少なくとも1種の作用物質を含有する治療的及び/又は診断的に有効な物質は、スペーサーによって作用物質と結合している少なくとも1種の蛋白質結合性分子基を有し、この際、スペーサー又はスペーサーと作用物質との間の結合は、pH‐依存的、加水分解的又は酵素的に身体中で分解可能であり、この際、作用物質は、細胞分裂抑制剤ではないことを特徴とする、少なくとも1種の作用物質を含有する治療的及び/又は診断的に有効な物質。
- 少なくとも1種の診断剤を含有する診断的に有効な物質は、スペーサーによって診断剤と結合している少なくとも1種の蛋白質結合性分子基であり、この際、スペーサー又はスペーサーと診断剤との間の結合は、pH‐依存的、加水分解的又は酵素的に身体中で分解可能であることを特徴とする、少なくとも1種の診断剤を含有する診断的に有効な物質。
- 腫瘍疾患、ウイルス疾患、自己免疫疾患、急性又は慢性‐炎症性疾患及び細菌、真菌類又は他の微生物によって引き起されている疾患の治療のための、請求項1から10までのいずれか1項に記載の治療的及び/又は診断的に有効な物質の使用。
- 請求項5から12までのいずれか1項に記載の診断的に有効な蛋白質結合性物質、場合により担体分子及び製薬学的に認容可能な助剤、賦形剤及び/又は希釈剤を含有する診断用キット。
- 腫瘍疾患、自己免疫疾患、急性又は慢性‐炎症性疾患及びウイルス及び/又は微生物によって引き起される疾患の検出及び/又は担体分子及び有機体中でのその分布の検出のための、請求項5から10まで及び12のいずれか1項に記載の診断的に有効な物質又は請求項14に記載の診断用キットの使用。
- 注射可能な担体液中に溶かされる診断的に有効な物質を含有する注射可能な医薬調製剤を製造するために、診断的に有効な物質として、診断剤及び少なくとも1種の蛋白質結合性分子基を包含する化合物を使用することを特徴とする、注射可能な医薬調製剤の製法。
- 診断剤と蛋白質結合性分子基は、スペーサーによって結合されている、請求項16に記載の方法。
- 診断剤と蛋白質結合性分子基との間の結合又はスペーサーは分解不可能である、請求項16又は17に記載の方法。
- 診断剤及び蛋白質結合性分子基は、アミド結合によって相互に結合している、請求項18に記載の方法。
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DE19926154A DE19926154A1 (de) | 1999-06-09 | 1999-06-09 | Verfahren zur Herstellung einer injizierbaren Arzneimittelzubereitung |
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