JP6242371B2 - 浸透圧薬物送達システム - Google Patents
浸透圧薬物送達システム Download PDFInfo
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- JP6242371B2 JP6242371B2 JP2015159865A JP2015159865A JP6242371B2 JP 6242371 B2 JP6242371 B2 JP 6242371B2 JP 2015159865 A JP2015159865 A JP 2015159865A JP 2015159865 A JP2015159865 A JP 2015159865A JP 6242371 B2 JP6242371 B2 JP 6242371B2
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- JP
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- Prior art keywords
- treprostinil
- solid oral
- release
- osmotic
- human subject
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Description
6,361,796号、及び同第6,514,532号)は、ラウリル硫酸ナトリウム及び他の可溶化剤を使用することにより、難溶性薬物であるグリピジドの溶解度を増大させて、基本タイプの浸透圧システムからグリピジドを持続的な様式で送達した。このRudnic
のシステムは、(a)薬物送達の間、その完全性を維持し、且つそれを通る少なくとも1つの経路を有する半透壁;(b)当該壁内の単一、均一な組成物であって、本質的に(i)薬学的活性剤、(ii)薬学的活性剤の溶解度を増大させる少なくとも1つの非膨潤可溶化剤、(iii)少なくとも1つの非膨潤浸透圧剤、及び必要に応じて(iv)薬学的活性剤と入ってくる水性液との接触表面積を増加させる、組成物全体に分散した非膨潤ウィッキング剤から本質的に成る組成物から構成される。
増大させるさらなる心血管作動薬を含む組成物が開示されている。しかしながら、トレプ
ロスチニルを唯一の活性剤として有する浸透圧徐放高バイオアベイラビリティ製剤についていかなる教示も示唆されていない。
したがって、トレプロスチニル又はその塩若しくは誘導体を、経口投与によって完全且つ持続的に送達する安全且つ有効な方法に臨床的関心がある。本発明は、放出促進剤(単数又は複数)(放出増強剤)を組み込んで、このような薬剤の完全且つ予測可能な放出を達成する浸透圧薬物送達システムに関する。さらに、特に徐放固形剤形での、プロスタサイクリン、トレプロスチニルの経口送達方法に関する。
れている。本システムを使用して、定義のように、「不規則」であるか、又は不完全な放出プロファイルを与える薬物を試験することができる。例えば、Felix Theeuwes著「基本的な浸透圧ポンプ(Elementary Osmotic Pump)」(Journal of Pharmaceutical Sciences, Vol. 64, No. 12, Pp 1987-1991, December 1975)を参照されたい。
かの図面全体にわたって同一又は類似の部分が指定される。
「錯化剤」及び「ミセル形成剤」という用語は、「レミントンの製薬の科学と実践(Re
mington's The Science and Practice of Pharmacy)」(第20版、Lippincott, Williams and Williams, 2000)第20版の第14章及び第20章にそれぞれ記載されるように
本明細書中で使用される。
量%、好ましくは2重量%〜20重量%、最も好ましくは3重量%〜10重量%で変動し得る。
。本発明の好ましい実施形態は、薬学的有効量のプロスタサイクリンアナログを徐放浸透圧投与製剤で経口投与することを含む、被験者における肺動脈高血圧及び/又は末梢血管疾患の治療方法である。
範囲に分割することができる範囲を指す。同様に、本明細書中で開示されるすべての比は、より広範な比の範囲内にあるすべての部分比も含む。さらに、当業者はまた、成員がマーカッシュグループ等、一般的な様式で相互にグループ化される場合に、本発明が、全体として列記されたグループ全体だけでなく、個々にグループの各成員及び主要グループの考えられ得るすべてのサブグループを包含することを容易に認識する。本発明の他の目的、特徴、及び利点は、以下の実施例から明らかとなる。しかしながら、本発明の趣旨及び範囲内の各種変形形態及び変更形態が、詳細な説明から当業者に明らかとなるので、詳細な説明及び特定の実施例は、本発明の好ましい実施の形態を示す一方、単なる例示目的で示されていると理解されるべきである。
放出増強剤としてラウリル硫酸ナトリウム及びメグルミンを含有するトレプロスチニル浸透圧製剤の造粒
第1表は、放出増強剤を含む及び含まないトレプロスチニル浸透圧錠コアの組成を示す:
実施例1による顆粒の錠剤化
実施例1による篩い分けした顆粒を、V型混合機内で3分〜5分間、ステアリン酸マグネシウムと混合した。混合物を、5/16インチの丸形標準凹状工具(concave tooling
)(穿孔機及び金型)を使用して回転式錠剤プレス上で錠剤化した。錠剤の重量、硬さ、及び厚さを、圧縮操作を通じてモニタリングした。また、アッセイ及び含量均一性に関して錠剤を分析した。
実施例2による錠剤のコーティング
実施例1によるコア錠剤を、ポリマーとしての酢酸セルロース、及び可塑剤としてのポリエチレングリコール3350(PEG3350)を含有するコーティングシステムでコーティングした。コーティングは、LDCS−IIIパンコーター(Vector Corporation、アイオワ州マリオン(Marion))内で実施した。所望のコーティングレベルを達成するまで、コーティング溶液を、回転する有孔パン(perforated pan)内で錠剤上に噴霧した。
レーザー錠剤穿孔システムを使用する、実施例3によるコーティングした錠剤の穿孔
Lumonicsレーザー錠剤穿孔システム(Resonetics Inc、ニューハンプシャー州ナシュア(Nashua))を使用して、実施例3による錠剤のコーティング上に穿孔した。レーザー出力及びビーム直径を調整して所望の孔径を達成する。アッセイ、含量均一性及び溶出に関して、穿孔した錠剤を評価した。
放出増強剤としてラウリル硫酸ナトリウム(SLS)を含有する製剤の造粒及び錠剤化
実施例5による錠剤のコーティング及び穿孔
実施例6によるトレプロスチニル浸透圧錠のヒトでの薬物動態研究
健常者において、12時間トレプロスチニル浸透圧錠製剤(lot# B05005)の安全性及びPKプロファイルを、8時間徐放(SR)錠製剤と比較することを目的とした。被験者(n=10)は、絶食状態又は摂食状態(標準的なFDA食)のいずれかで、
単回用量(1mg)の浸透圧製剤を摂取した。そして被験者は、7日間の休薬期間を置いて、診療所に戻り、クロスオーバー処置(crossover treatment)を受けた。投薬日には
、投薬後24時間までPK試料を採取し、診療所から退院するまで安全性を評価した。PK試料を、バリデートしたLC/MS/MSアッセイで分析した。図7に、薬物動態プロファイルを示す。結果からは、浸透圧錠製剤が、8時間SR(徐放)錠製剤と比較して、全身曝露を持続させることが示される。
浸透圧トレプロスチニル錠によるトレプロスチニルの薬物動態に対する食事の効果
健常者における摂食状態及び絶食状態での、12時間トレプロスチニル浸透圧錠製剤(lot# B05005)の安全性及びPKプロファイルを比較することを目的とした。被験者(n=10)は、絶食状態又は摂食状態(標準的なFDA食)のいずれかで、単回用量(1mg)の浸透圧製剤を摂取した。そして被験者は、7日間の休薬期間をおいて、診療所に戻り、クロスオーバー処置を受けた。投薬日には、投薬後24時間までPK試料を採取し、診療所から退院するまで安全性を評価した。PK試料を、バリデートしたLC/MS/MSアッセイで分析した。図7に、薬物動態プロファイルを示す。そこで示される結果は、摂食状態と絶食状態との間でPKプロファイルが異なり、摂食状態の方がトレプロスチニル全身曝露の持続期間が長いことを示す。摂食状態と絶食状態との間で安全性パラメータは類似しており、全体的な耐容性が非常に良好である。
Claims (13)
- 下記の(a)並びに(b)を含む、ヒト被検体の肺高血圧症を治療するための固体経口製剤:
(a)下記の(i)及び(ii)を含む浸透圧活性薬物コア;
(i)トレプロスチニルジエタノールアミンの形態であるトレプロスチニル、及び
(ii)少なくとも1種の放出増強剤、並びに
(b)該浸透圧活性薬物コアからの該トレプロスチニルの浸透圧放出を可能にする少なくとも1つの開口を含む、該浸透圧活性薬物コアを囲む半透膜、
ここで、該固体経口製剤の経口投与は、ヒト被検体においてトレプロスチニルの治療有効血漿濃度を与え、
該少なくとも1種の放出増強剤は、ラウリル硫酸ナトリウムである。 - 該固体経口製剤が1日2回投与される、請求項1に記載の固体経口製剤。
- 該投与が、トレプロスチニルの定常状態の血中レベルを生じる、請求項2に記載の固体経口製剤。
- 該ヒト被検体におけるトレプロスチニルの治療有効血漿濃度が2時間〜8時間のTmaxを有する、請求項1に記載の固体経口製剤。
- 該ヒト被検体におけるトレプロスチニルの治療有効血漿濃度が0.5ng/ml〜2ng/mlのCmaxを有する、請求項1に記載の固体経口製剤。
- 該ヒト被検体におけるトレプロスチニルの治療有効血漿濃度が0.1ng/ml〜0.2ng/mlのCminを有する、請求項1に記載の固体経口製剤。
- 該固体経口製剤が1mgのトレプロスチニルを含む、請求項1に記載の固体経口製剤。
- 該少なくとも1つの開口が100μm〜800μmの直径を有する、請求項1に記載の固体経口製剤。
- 該半透膜が複数の開口を有する、請求項1に記載の固体経口製剤。
- 該少なくとも1種の放出増強剤が該製剤の1重量%〜20重量%を構成する、請求項1に記載の固体経口製剤。
- 該浸透活性薬物コアが少なくとも1種の浸透圧剤を更に含む、請求項1に記載の固体経口製剤。
- 該浸透活性薬物コアがキシリトール及びマルトデキストリンを含む、請求項11に記載の固体経口製剤。
- 下記の(c)並びに(d)を含む、ヒト被検体の肺高血圧症を治療するための固体経口製剤:
(c)下記の(i)及び(ii)を含む浸透圧活性薬物コア;
(i)トレプロスチニルジエタノールアミン、及び
(ii)ラウリル硫酸ナトリウム、並びに
(d)該浸透圧活性薬物コアからのトレプロスチニルの浸透圧放出を可能にする100μm〜800μmの直径を有する少なくとも1つの開口部を含む、該浸透圧活性薬物コアを囲む半透膜、
ここで、該固体経口製剤の経口投与は、ヒト被検体におけるトレプロスチニルの治療有効血漿濃度を提供し、
該ヒト被検体におけるトレプロスチニルの治療有効血漿濃度は2時間〜8時間のTmaxを有し、
該ヒト被検体におけるトレプロスチニルの治療有効血漿濃度は0.5ng/ml〜2nm/mlのCmaxを有し、
該ヒト被検体におけるトレプロスチニルの治療有効血漿濃度は0.1ng/ml〜0.2ng/mlのCminを有する。
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US20160263042A1 (en) | 2016-09-15 |
KR20140075805A (ko) | 2014-06-19 |
US20160030355A1 (en) | 2016-02-04 |
CA2649243C (en) | 2014-02-25 |
JP5570209B2 (ja) | 2014-08-13 |
WO2007127216A3 (en) | 2007-12-27 |
KR20090038392A (ko) | 2009-04-20 |
JP5841554B2 (ja) | 2016-01-13 |
CN101466384A (zh) | 2009-06-24 |
US10154965B2 (en) | 2018-12-18 |
JP2013139468A (ja) | 2013-07-18 |
US9393203B2 (en) | 2016-07-19 |
CN101466384B (zh) | 2015-04-22 |
JP2009535337A (ja) | 2009-10-01 |
US20190336450A1 (en) | 2019-11-07 |
ES2377387T3 (es) | 2012-03-27 |
ES2399200T3 (es) | 2013-03-26 |
EP2010189B1 (en) | 2011-11-09 |
CA2649243A1 (en) | 2007-11-08 |
US20200261371A1 (en) | 2020-08-20 |
ATE532520T1 (de) | 2011-11-15 |
US8747897B2 (en) | 2014-06-10 |
WO2007127216A2 (en) | 2007-11-08 |
KR101555455B1 (ko) | 2015-09-23 |
US20230255892A1 (en) | 2023-08-17 |
EP2368556A1 (en) | 2011-09-28 |
JP2016026155A (ja) | 2016-02-12 |
US20140303252A1 (en) | 2014-10-09 |
EP2368556B1 (en) | 2012-11-07 |
US20070254032A1 (en) | 2007-11-01 |
EP2010189A2 (en) | 2009-01-07 |
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