JP7291682B2 - 生物学的活性物質の経口送達のための架橋マルトデキストリン - Google Patents
生物学的活性物質の経口送達のための架橋マルトデキストリン Download PDFInfo
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- JP7291682B2 JP7291682B2 JP2020501315A JP2020501315A JP7291682B2 JP 7291682 B2 JP7291682 B2 JP 7291682B2 JP 2020501315 A JP2020501315 A JP 2020501315A JP 2020501315 A JP2020501315 A JP 2020501315A JP 7291682 B2 JP7291682 B2 JP 7291682B2
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- maltodextrin
- insulin
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Description
本発明者らは、先行技術の技術、特に特許出願ITBO20120710の架橋シクロデキストリンの欠点を、生物学的活性物質の大きなバイオアベイラビリティおよび薬物動態プロファイルに関連する、生物学的活性物質の非経口送達のための新規かつ安全なシステムを開発することによって、首尾よく改善した。
したがって、本発明は最初に、架橋マルトデキストリンおよび有効量の前記生物学的活性物質を含む、生物学的活性物質の経口投与を意図した組成物に関する。
a)マルトデキストリンの溶液を調製する工程、前記マルトデキストリンは、好ましくは先に記載されたものと同様である;
b)少なくとも1つの架橋化合物を添加する工程、前記架橋化合物は、好ましくは先に記載したものと同様である;
c)架橋マルトデキストリンを得る工程。
A.送達システム合成
1.本発明による送達システム(MDX-PYR):0.57のピロメリット酸二無水物(PMDA)/無水グルコース単位のモル比で、PDMAによって架橋されたマルトデキストリン
イタリア特許出願ITBO20120710の実施例1に従って、比較架橋β-シクロデキストリンBCD-PYRを調製した。
上記セクションA.に従って得られた送達システムを、以下の特徴:平均直径、多分散性指数、ゼータ電位、pH値について特徴付けた。
1.インスリン積載プロトコール
ウシ膵臓粉末からのインスリンを用いて、リン酸を用いてpH 2.3に調整した蒸留水中の2mg/mL溶液を調製した。インスリン溶液を、1:5の質量比インスリン溶液:ナノ懸濁液で、予め形成された水性ナノ懸濁液に添加した。混合物を室温で30分間撹拌し、組み込み、遠心分離し、次いで沈殿物から分離した上清を回収し、将来使用するために凍結乾燥した
a.積載容量
積載容量は、凍結乾燥したインスリン積載サンプルから決定した。簡単に述べると、インスリンを積載した2~3mgの凍結乾燥送達システムの重量を5mLの蒸留水中に分散させた。超音波処理(15分、100W)および遠心分離処理を行って、システム送達からのインスリンの放出を可能にした。次に、上清をインスリンの定量測定のために分析した。
[インスリン重量/凍結乾燥送達システム重量]×100。
in vitro薬物放出実験を、セルロース膜(Spectrapore、カットオフ12000~14000Da)によって他方の側の受容細胞から分離された一方の側のいくつかのドナー細胞から構成される、多区画回転ディスク(ドナー区画から膜によって分離されたドナーチャンバーを含む拡散細胞系)中で行った。インスリン積載送達システムをドナー細胞(1mL)に入れた。受容細胞を、リン酸緩衝化生理食塩水PBS溶液(pH 1.2およびpH 6.8)によって別々に満たした。インビトロ放出検討を6時間実施し、受容相を規則的な間隔で取り除き、同量の新しいPBS溶液で置き換えた。調査したサンプリング時間は、0.25、0.5、0.75、1、1.5、2、3、4、5、および6時間であった。採取したサンプル中のインスリン濃度を、後にHPLCによって検出した。
送達システム製剤を、胃内での経口胃管栄養法によってマウスに投与した。インスリン濃度は6U/ml(210mg/mlインスリン)であったので、投与量30U/kgおよび採血を0、30、60、120、180および240分で収集した。インスリンは後に、以下のプロトコールを用いて血漿サンプルから抽出した。100μlの血漿、100μlのPBS(pH 7.4)、50μlのアセトニトリル、20μlのエチルパラベン、3mlのジクロロメタン/n-ヘキサン(1:1v/v)をそれぞれ添加した。混合物を2分間ボルテックスし、次いで5000rpmで10分間遠心分離した。上清を試験管に移して蒸発させ、有機相を窒素フラックス下に置いた。その後、300μlのHCl 0,05Nをボルテックス上で2分間添加した。有機相を窒素フラックス下で完全に蒸発させた後、15000rpmで10分間遠心分離した。透明な上清を、適切に希釈した後、HPLCに注入した。
Claims (10)
- 架橋マルトデキストリンおよび有効量の生物学的活性物質を含む、生物学的活性物質の経口投与を意図した組成物であって、
前記生物学的活性物質がインスリンであり、前記架橋マルトデキストリンはマルトデキストリンに二無水物から選択された架橋化合物を反応させることにより得られ、かつ、前記マルトデキストリンが、デンプンの全乾燥重量に対して乾燥重量で表して25~50%の範囲のアミロースを含むデンプンに由来する、組成物。 - 前記二無水物がピロメリット酸二無水物で請求項1に記載の組成物。
- 前記架橋反応のための架橋化合物と前記マルトデキストリンのアンヒドログルコース単位との間のモル比が、0.1~10.0の範囲内で選択される、請求項1または2に記載の組成物。
- 薬剤として使用するための、請求項1~3のいずれか1項に記載の組成物。
- 糖尿病の治療または予防に使用するための、請求項4に記載の組成物。
- 前記糖尿病が1型糖尿病および/または妊娠糖尿病である、請求項5に記載の使用のための組成物。
- 前記架橋マルトデキストリンに有効量の前記生物学的活性物質を積載する工程を含む、請求項1~3のいずれか1項に記載の組成物または請求項4に記載の使用のための組成物の調製方法。
- 請求項1~3のいずれか1項に記載の組成物および適切な賦形剤を含む長期持続放出経口製剤。
- 製剤が薬剤または獣医学的製品として使用するためのものである、請求項8に記載の持続放出経口製剤。
- 前記製剤が、化粧品、食品および栄養補助食品からなる群から選択される製品である、請求項8に記載の持続放出経口製剤。
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PCT/EP2018/068743 WO2019011964A1 (en) | 2017-07-12 | 2018-07-11 | CROSS-LINKED MALTODEXTRINS FOR ORAL ADMINISTRATION OF BIOLOGICAL ACTIVE INGREDIENTS |
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ITBO20120710A1 (it) | 2012-12-28 | 2014-06-29 | Univ Degli Studi Torino | Sistema di veicolazione per l'insulina |
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JP2007520202A (ja) | 2003-06-20 | 2007-07-26 | ニュートリニア・リミテッド | 生物活性化合物の保護方法及びそれを含む組成物 |
JP2015514747A (ja) | 2012-04-18 | 2015-05-21 | ニュートリニア リミテッド | 乳児の発育促進 |
JP2017503836A (ja) | 2014-01-27 | 2017-02-02 | イッサム リサーチ ディベロップメント カンパニー オブ ザ ヘブライ ユニバーシティー オブ エルサレム リミテッドYissum Research Development Company Of The Hebrew Universty Of Jerusalem Ltd. | 親水性活性化合物のナノカプセル化 |
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US20210085795A1 (en) | 2021-03-25 |
CA3069628A1 (en) | 2019-01-17 |
MX2022013237A (es) | 2022-11-14 |
WO2019011964A1 (en) | 2019-01-17 |
US20240066130A1 (en) | 2024-02-29 |
JP2020526555A (ja) | 2020-08-31 |
JP2023082010A (ja) | 2023-06-13 |
MX2020000374A (es) | 2020-08-17 |
US11844838B2 (en) | 2023-12-19 |
BR112020000599A2 (pt) | 2020-07-14 |
CN111417387A (zh) | 2020-07-14 |
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