JP2017533949A - 錠剤 - Google Patents
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- JP2017533949A JP2017533949A JP2017526573A JP2017526573A JP2017533949A JP 2017533949 A JP2017533949 A JP 2017533949A JP 2017526573 A JP2017526573 A JP 2017526573A JP 2017526573 A JP2017526573 A JP 2017526573A JP 2017533949 A JP2017533949 A JP 2017533949A
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Abstract
Description
a)定められた期間にわたる薬剤放出の速度を制御する複雑なマトリックスを形成するために、マトリックス製剤は、特殊な賦形剤を使用する。該薬剤はマトリックスの全体にわたって均一に配布され、そして消化管液との接触において、薬剤が製剤からマトリックスの拡散または溶解/浸食により放出される速度を、水進入および薬剤溶解の速度は最終的に制御する。
b)貯蔵装置は薬剤を含んでいるコアを有し、その製剤からの薬剤の拡散速度を決定する浸透膜によって、それは被覆される。
c)薬剤放出を制御するために、浸透圧薬剤送達システムは、浸透圧を利用する。それらは、消化管の生理により影響されない徐放を許す。
d)流体力学的に制御された薬剤送達システム(例えばMadopar(商標)(レボドパおよびベンセラジドを含む浮動カプセル)またはValrelease(商標)(ジアゼパムを含む浮動カプセル)は、徐放技術の他の発展領域である。これらは、顆粒、粉体、カプセル、錠剤、積層フィルム、または中空微小球体からなっていてもよい。これらのシステムは低密度であり、したがって胃の内容物より上に浮くために充分な浮力を有している。該システムが浮くにつれ、該薬剤は消化管液にゆっくり放出される。しかしながら、これらは浮くために存在するべき流体の充分なレベルを必要とし、それは可溶性の高い薬剤に速すぎる放出を引き起こす場合がある。
浸食可能な徐放錠を形成する方法であって、以下の工程:
a.ワックスを溶解状態に保持している間に、1または2以上の治療剤、1または2以上の崩壊剤、および1または2以上の溶解されたワックスを混合すること;
b.該混合物を固体化し、そして粒状化すること;
c.顆粒の圧縮によって、錠剤を形成すること;
を含む前記方法。
本発明は、ここで例として添付の図を参照して記載され、ここで:
本発明に従い調製され、後述される検討において、テストされる錠剤は、以下の物質の種々の組合せを含む:メトホルミン塩酸塩(バッチ122110)は、スプリュート・ヒレンBV(エイセルスタイン、オランダ)から得られた。グリセオフルビン(バッチ10I30−B03)は、Fagron(タラサ、スペイン)から購入された。塩酸フェニレフリン(バッチ031M1736V)は、シグマアルドリッチ(セントルイス、米国)から購入された。ベヘン酸グリセリル(またはGBと呼ばれる)(バッチ134916)は、ガットフォセ(サンプリエスト、フランス)から購入された。L−HPC崩壊剤は、信越(東京、日本)から得られた。
37℃±0.5℃で、50回転/分で作動されるパドルによって、自動化されたADT8 USP溶解タイプII装置(TDT08L浴1105230、Electrolab社、クパチーノ、米国)を用いて、本発明に従い調製され錠剤に、溶解試験は実施された。溶解は、pH6.8リン酸緩衝液900ml中で行われた。溶解媒体の試料は、5分ごとに回収され、そしてSP700高性能UV可視分光器(T70+18−1815−1−0054、PG Instruments社、Wibtoft、U.K.)を用いたUV分析法で測定された。錠剤の調製ごとに100mgおよび10mgのメトホルミンのための適切な標準試料が、100%の薬剤放出のための吸光度を提示するために、ブランクとしてpH 6.8リン酸緩衝液を用いて溶解の前に測定された。
in vitroの薬剤放出検討は、2セットの500mgの錠剤(両方とも本発明に従い、かつ、表1に示された成分の比率に従って調製された)に対して、上記の2.に従って実施された。錠剤の両方のセットは、L−HPCに対して重量で等量のベヘン酸グリセリル含み、一方錠剤の一セットは、重量でほぼ10倍のメトホルミンHClを含んでいた。示された結果は、6つの反復検討の平均の結果である。
表1
in vitroの薬剤放出検討は、5セットの錠剤(すべての錠剤は本発明に従い、かつ、表2a〜2eに示された成分の比率に従って調製された)に対して、上記の2.に従って実施された。結果は表2a〜2eの錠剤に対応して、図2a〜2eにおいて、それぞれ与えられる。
in vitroの薬剤放出検討は、錠剤(本発明に従い、かつ、表3に示された成分の比率に従って調製された)に対して、上記の2.に従って実施された。検討は、繰り返されたが、各々の繰り返しにおいて、その中で溶解が起こるリン酸緩衝液に、量を増加させてアルコールが加えられた。結果は、図3において、提示される。
in vitroの薬剤放出検討は、錠剤(本発明に従い、かつ、表4に示された成分の比率に従って調製された)に対して、上記の2.に従って実施された。検討は、繰り返されたが、各々の繰り返しにおいて、その中で溶解が起こる減少させたpH環境を示すように、リン酸緩衝液が制御された。結果は、図4において、提示される。
in vitro薬剤放出検討は、上記の2.に従って実施されたが、それが消化管を通過するにつれて、撹拌の様々な条件を再現するために種々の速度で動作する溶解パドルにより実施された。in vitroの薬剤放出検討は、錠剤(本発明に従い、かつ、表5に示された成分の比率に従って調製された)に対して実施された。
in vitroでの薬剤放出検討は、上記の2.に従って行われ、すべての錠剤は、上記の1.中に記載されている製剤に従う一の層により調製され、その層は、表6において提示された成分の比率に従っている。各錠剤は、10mgのフェニレフリンHCl;4.5mgのクロスカルメロースナトリウム;2.25mgのコリドン30;27.35mgのラクトース二水和物;および0.9mgのステアリン酸マグネシウムを含むコアによって、造られた。塩酸フェニレフリン、クロスカルメロースナトリウム、コリドン30、およびラクトース一水和物は、手で、ほぼ3分間適切な容器中で混合された。ステアリン酸マグネシウムがその後加えられ、そして、180μm篩を通過する前に、該混合物は、更に3分間混合された。錠剤混合物44mgは、計量され、ラクトース3mgと混合された。該錠剤は、錠剤成形機および5.9mmの両凸の雄型の型を用いて圧縮された。錠剤の重量は、その後計量され、それらが42.5〜47.5mgの間の重量仕様を満たしたことを確認した。4または6時間の徐放のために調製された層中に、該コアは封入され、この封入されたコア自体は、10mgのフェニレフリンHClを標準オパドライ溶液に含む更なる層中に被覆された。ほぼ1.5gのオパドライクリア(clear)が計量され、磁気撹拌機/ホットプレート上で混合する間に、徐々に30mlの滅菌水に加えられた。
10mgの用量のフェニレフリンを送達し、その後5時間にわたって送達される15mgの徐放用量およびコアからの10mgの遅延放出パルスが後続する、三相性放出製剤の生体内の挙動を調べるために、二群の臨床研究は、設計された。パラグラフの述べられた上記段落番号8中で議論されたように製剤化された。
Claims (20)
- 浸食可能な徐放錠を形成する方法であって、以下の工程:
a.ワックスを融解形に保持している間に、1または2以上の治療剤、1または2以上の崩壊剤、および1または2以上の融解されたワックスを混合すること;
b.該混合物を固体化し、そして粒状化すること;および
c.顆粒の圧縮によって、錠剤を形成すること、
を含む前記方法。 - 工程cの圧縮された顆粒が、徐放錠を完全に形成する、請求項1に記載の方法。
- 工程cの圧縮された顆粒が、コアを封入する1または2以上の官能化された層を伴う浸食可能な徐放コアを形成する、請求項1に記載の方法。
- 工程cの圧縮された顆粒が、錠剤のコアを封入する浸食可能な徐放層を形成する、請求項1に記載の方法。
- ワックスが、カルナバワックス、パラフィンワックス、キャスタワックス、密蝋、ベヘン酸グリセリル、グリコワックス、またはそれらのいずれかの組み合わせである、請求項1〜4のいずれか一項に記載の方法。
- ワックスが、工程cの圧縮された顆粒の20〜80重量%で提供される、請求項1〜5のいずれか1項に記載の方法。
- 本発明の崩壊剤が、低置換ヒドロキシプロピルセルロースである、請求項1〜6のいずれか一項に記載の方法。
- 崩壊剤がLH−11、LH−21、LH−22、LH−32、NBD−021、NBD−020、LH−B1、またはそれらのいずれかの組み合わせである、請求項7に記載の方法。
- 崩壊剤が、工程cの圧縮された顆粒の10〜80重量%で提供される、請求項1〜8のいずれか一項に記載の方法。
- 治療剤、崩壊剤、および融解されたワックスのみが工程aに混合される、請求項1〜9のいずれか一項に記載の方法。
- ワックス、崩壊剤、および治療剤を含む徐放錠であって、該ワックスが、該治療剤の、および該崩壊剤の粒子または集塊を実質的に被覆する、前記除放錠。
- 請求項1〜10のいずれか一項に記載の方法に従って調製される、請求項11に記載の徐放錠。
- 錠剤が、ワックス、崩壊剤、および治療剤からなり、該ワックスが、該治療剤の、および該崩壊剤の粒子を実質的に被覆する、請求項11または12に記載の徐放錠。
- ワックス、崩壊剤、および治療剤が、コアを封入している1または2以上の官能化された層を伴うコアを形成する、請求項11〜13のいずれか一項に記載の徐放錠。
- ワックス、崩壊剤、および治療剤が、錠剤のコアを封入する層を形成する、請求項11〜13のいずれか一項に記載の徐放錠。
- ワックスが、カルナバワックス、パラフィンワックス、キャスタワックス、密蝋、ベヘン酸グリセリル、グリコワックス、またはそれらのいずれかの組み合わせである、請求項11〜15のいずれか一項に記載の徐放錠。
- ワックスが、工程cの圧縮された顆粒の20〜80重量%で提供される、請求項11〜16のいずれか1項に記載の徐放錠。
- 本発明の崩壊剤が、低置換ヒドロキシプロピルセルロースである、請求項11〜17のいずれか一項に記載の徐放錠。
- 崩壊剤が、LH−11、LH−21、LH−22、LH−32、NBD−021、NBD−020、LH−B1、またはそれらのいずれかの組み合わせである、請求項18に記載の方法。
- 崩壊剤が、工程cの圧縮された顆粒の10〜80重量%で提供される、請求項11〜19のいずれか一項に記載の徐放錠。
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GB201420300D0 (en) | 2014-11-14 | 2014-12-31 | Bio Images Drug Delivery Ltd | Tablet |
US10363220B2 (en) | 2015-06-03 | 2019-07-30 | Triastek, Inc. | Compartmented pharmaceutical dosage forms |
KR20190107712A (ko) | 2017-01-26 | 2019-09-20 | 트리아스텍 인코포레이티드 | 특정 위장 부위에서의 제어 방출의 투여 형태 |
CN116270513A (zh) | 2018-01-09 | 2023-06-23 | 南京三迭纪医药科技有限公司 | 一种包含固定剂量adhd非兴奋剂和adhd兴奋剂的复方口服药物剂型 |
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