JP2016199603A - 貼付剤 - Google Patents
貼付剤 Download PDFInfo
- Publication number
- JP2016199603A JP2016199603A JP2016174418A JP2016174418A JP2016199603A JP 2016199603 A JP2016199603 A JP 2016199603A JP 2016174418 A JP2016174418 A JP 2016174418A JP 2016174418 A JP2016174418 A JP 2016174418A JP 2016199603 A JP2016199603 A JP 2016199603A
- Authority
- JP
- Japan
- Prior art keywords
- asenapine
- adhesive layer
- sensitive adhesive
- pressure
- patch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Abstract
【解決手段】 支持体層と粘着剤層とを備える貼付剤であって、
前記粘着剤層が、粒度分布における累積体積が50%となる粒子径D50が10μm以下である二酢酸ナトリウム、アセナピン及び/又はその薬学的に許容される塩、及び感圧性接着基剤を含有しており、かつ、
前記粘着剤層のX線回折法による測定において、前記二酢酸ナトリウムに由来するピーク強度が酢酸ナトリウムに由来するピーク強度よりも大きく、
前記感圧性接着基剤がゴム系粘着剤である、
ことを特徴とする貼付剤。
【選択図】 なし
Description
支持体層と粘着剤層とを備える貼付剤であって、
前記粘着剤層が、粒度分布における累積体積が50%となる粒子径D50が10μm以下である二酢酸ナトリウム、アセナピン及び/又はその薬学的に許容される塩、及び感圧性接着基剤を含有しており、かつ、
前記粘着剤層のX線回折法による測定において、前記二酢酸ナトリウムに由来するピーク強度が酢酸ナトリウムに由来するピーク強度よりも大きく、
前記感圧性接着基剤がゴム系粘着剤である、
ことを特徴とする。
支持体層と粘着剤層とを備える貼付剤の製造方法であって、
アセナピン又はその薬学的に許容される塩と粒度分布における累積体積が50%となる粒子径D50が40〜1000μmである酢酸ナトリウムとを、前記酢酸ナトリウム及び前記酢酸ナトリウムから生成せしめた二酢酸ナトリウムの粒子径D50が10μm以下となるように混合して、前記二酢酸ナトリウムと前記アセナピン又はその薬学的に許容される塩とを含有する混合物を得る混合物調製工程、及び、
前記混合物と感圧性接着基剤とを混合して得られた粘着剤層組成物を用いて前記二酢酸ナトリウム、前記アセナピン又はその薬学的に許容される塩、及び前記感圧性接着基剤を含有する前記粘着剤層を形成する粘着剤層形成工程、
を含むことを特徴とする。
本発明の貼付剤の製造方法においては、先ず、アセナピン又はその薬学的に許容される塩と粒度分布における累積体積が50%となる粒子径D50が40〜1000μmである酢酸ナトリウムとを、前記酢酸ナトリウム及び前記酢酸ナトリウムから生成せしめた二酢酸ナトリウムの粒子径D50が10μm以下となるように混合して、前記二酢酸ナトリウムと前記アセナピン又はその薬学的に許容される塩とを含有する混合物を得る。
本発明に係るアセナピンとは、trans−5−クロロ−2−メチル−2,3,3a,12b−テトラヒドロ−1H−ジベンゾ[2,3:6,7]オキセピノ[4,5−c]ピロールのことを指し、通常、中枢神経系疾患、特に統合失調症の治療に用いられる薬物として知られている。このようなアセナピンとしては、遊離の形態であっても、その薬学的に許容される塩であっても、これらの混合物であってもよいが、保存安定性に優れ、アセナピンが分解されることによる粘着剤層の変色を抑制するという観点、及び、皮膚に対する刺激を抑制するという観点から、アセナピンの薬学的に許容される塩であることが好ましく、アセナピンの薬学的に許容される酸付加塩であることがより好ましい。一般的に、皮膚透過性を向上させるという観点からは薬物が遊離の形態であることが好ましいが、本発明の貼付剤の製造方法においては、このように塩の形態のアセナピンを用いても得られる貼付剤において優れたアセナピンの皮膚透過性が発揮される。
本発明の貼付剤の製造方法に係る酢酸ナトリウムとしては、前記アセナピン又はその薬学的に許容される塩との混合前において、粒度分布における累積体積が50%となる粒子径D50が40〜1000μmであることが必要である。酢酸ナトリウムの粒子径D50が前記下限未満である場合には、二酢酸ナトリウムを十分に生成させることができない。また、酢酸ナトリウムの粒子径をその粒子径とするために別途粉砕するといった工程が必要となる場合があり、製造コストが増加する。他方、前記上限を超える場合には、混合に要する時間及び製造コストが増加したり、二酢酸ナトリウムを十分に生成させることができない。また、このような混合前の酢酸ナトリウムの粒子径D50としては、より効率よく十分な量の二酢酸ナトリウムを生成させることができる傾向にあるという観点から、40〜700μmであることが特に好ましく、混合後の酢酸ナトリウム及び前記酢酸ナトリウムから生成せしめた二酢酸ナトリウムの粒子径D50に比べて10〜1000%大きいことが好ましい。
本発明の貼付剤の製造方法においては、次いで、前記混合物と感圧性接着基剤とを混合して得られた粘着剤層組成物を用いて前記二酢酸ナトリウム、前記アセナピン又はその薬学的に許容される塩、及び前記感圧性接着基剤を含有する前記粘着剤層を形成する。
本発明の貼付剤の製造方法に係る粘着剤層組成物は、前記混合物に、少なくとも、感圧性接着基剤を更に混合したものである。このような混合方法としては特に制限されない。前記感圧性接着基剤としては、例えば、(メタ)アクリル酸エステル(共)重合体、ゴム系粘着剤、シリコーンポリマー、ポリウレタン系粘着剤等が挙げられ、これらのうちの1種を単独で用いても2種以上を組み合わせて用いてもよい。
本発明の貼付剤の製造方法に係る粘着剤層組成物としては、本発明の効果を阻害しない範囲内において、必要に応じて、粘着付与剤、軟化剤、安定化剤、吸収促進剤等の添加剤を更に含有させてもよい。
先ず、酢酸エチルに各実施例及び比較例に用いた混合前の酢酸ナトリウム、又は各実施例及び比較例で得られた混合物を添加して不溶成分を分散させた後、レーザー光散乱法(使用装置:レーザー光散乱粒度分布測定装置(大塚電子社製、DLSー7000型)、Arレーザー出力:75mW)を用いて粒度分布曲線を得た。次いで、得られた粒度分布から、累積体積が10%となる粒子径D10(μm)、累積体積が50%となる粒子径D50(μm)、累積体積が90%となる粒子径D90(μm)、体積平均粒子径(μm)及びピーク位置をそれぞれ求めた。
先ず、ヘアレスマウスより摘出した皮膚の角質層側に、3cm2の円形に切断して剥離ライナーを除去した貼付剤を貼付した。次いで、この皮膚の真皮側がレセプター槽側となるように、32℃に保温したフロースルー型拡散セルに装着した。レセプター槽にリン酸緩衝生理食塩水(32℃)を1時間当たり約3mlの流量で導入し、前記レセプター槽から2時間又は4時間毎に24時間までそれぞれ試料液を採取し、採取したそれぞれの試料液について高速液体クロマトグラフ法により薬物(アセナピン)の濃度を定量した。アセナピンの皮膚透過量を次式:
皮膚透過量(μg/cm2)=[薬物濃度(μg/ml)×流量(ml)]/貼付剤面積(cm2)
により算出し、これより、1時間当たりの皮膚透過量(皮膚透過速度(μg/cm2/hr))及び各時間における累積皮膚透過量(μg/cm2)を求めた。また、測定開始から24時間経過後まで、24時間分の薬物の累積皮膚透過量(μg/cm2/24hr)を求め、薬物の利用率(%)を、以下の式:
利用率(%)={(24時間分の薬物の累積皮膚透過量)/(貼付剤1cm2あたりの薬物の含有量)}×100
により算出した。皮膚透過速度及び累積皮膚透過量が大きい貼付剤は薬物の皮膚透過性が高いものと認められる。
先ず、参考試料として、二酢酸ナトリウム及び酢酸ナトリウムについてX線解析を実施した。測定用ガラス板のくぼみに二酢酸ナトリウム又は酢酸ナトリウムをそれぞれ適量取り、測定面が平らになるように整えた後、以下に示す機器及び測定条件:
機器:X’ Pert−PRO(スペクトリス社製)
X線:CuKα
走査角度:5〜50°
走査速度:0.01°/min
により測定を行った。得られたスペクトルから、二酢酸ナトリウムに由来するピークは、2θ=11.1°、13.6°、22.3°の3箇所、酢酸ナトリウムに由来するピークは2θ=8.8°の1箇所であることが確認された。
先ず、健康成人男性(18人)の上腕に、8cm2に切断して剥離ライナーを除去した貼付剤(アセナピンフリー体換算含有量:3.4mg)をそれぞれ貼付した。貼付剤を貼付してから2時間後〜120時間後までの間、4時間毎に採血を行い、高速液体クロマトグラフ法により血漿中のアセナピンフリー体及びN−デスメチルアセナピンの量をそれぞれ測定した。なお、貼付剤は、貼付してから24時間後に剥離した。次いで、x軸を時間、y軸をアセナピンフリー体及びN−デスメチルアセナピンそれぞれの血漿中濃度として血漿中濃度−時間曲線を作成し、この曲線における時間2〜120の積分値の平均値を算出することにより、アセナピンフリー体及びN−デスメチルアセナピンそれぞれの血漿中濃度−時間曲線下面積(AUC2−120[pg・hr/mL])を求めた。
先ず、酢酸ナトリウム6質量部、マレイン酸アセナピン(平均粒子径:30μm)7質量部(酢酸ナトリウムのモル数:マレイン酸アセナピンのモル数=4:1)、及び流動パラフィン7質量部をトルエン10質量部とともに50mL容器中に入れ、プロペラミキサーを用いて、室温(25℃)において、120分間、200rpmの回転数で接触混合し、混合物を得た。
酢酸ナトリウムを用いず、粘着剤層組成物の組成(トルエン等の溶媒を除く)を表1に示す組成としたこと以外は実施例1と同様にして貼付剤を得た。
先ず、酢酸ナトリウム6質量部、マレイン酸アセナピン(平均粒子径:30μm)7質量部、及び流動パラフィン7質量部をトルエン10質量部とともに50mL容器中に入れ、プロペラミキサーを用いて、室温(25℃)において、5分間、50rpmの回転数で混合し、混合物を得た。
マレイン酸アセナピンを用いず、粘着剤層組成物の組成(トルエン等の溶媒を除く)を表1に示す組成としたこと以外は実施例1と同様にして貼付剤を得た。
先ず、酢酸ナトリウム4.9質量部、マレイン酸アセナピン(平均粒子径:30μm)6質量部(酢酸ナトリウムのモル数:マレイン酸アセナピンのモル数=4:1)、及び流動パラフィン29.1質量部をトルエン10質量部とともに50mL容器中に入れ、プロペラミキサーを用いて、室温(25℃)において、120分間、200rpmの回転数で接触混合し、混合物を得た。なお、このときの混合前の酢酸ナトリウム及び得られた混合物の粒度分布を測定したところ、混合前の酢酸ナトリウムのD50は517.6μmであり、混合物の粒子径D50は6.93μmであった。
マレイン酸アセナピンを12質量部、酢酸ナトリウムを7.3質量部(酢酸ナトリウムのモル数:マレイン酸アセナピンのモル数=3:1)とし、流動パラフィンを20.7質量部としたこと以外は実施例2と同様にして貼付剤を得た。このときの粘着剤層の組成を表4に示す。
マレイン酸アセナピンを17質量部、酢酸ナトリウムを8.7質量部(酢酸ナトリウムのモル数:マレイン酸アセナピンのモル数=2.5:1)とし、流動パラフィンを14.3質量部としたこと以外は実施例2と同様にして貼付剤を得た。このときの粘着剤層の組成を表4に示す。
パルミチン酸イソプロピル(IPP)を用いず、流動パラフィンを34.1質量部としたこと以外は実施例1と同様にして貼付剤を得た。このときの粘着剤層の組成を表5に示す。
パルミチン酸イソプロピル(IPP)に代えて、それぞれ、ミリスチルアルコール、オレイン酸、プロピレングリコール、オクチルドデカノール、オレイルアルコール、及びラウリルアルコールを用いたこと以外は実施例2と同様にして貼付剤を得た。このときの粘着剤層の組成を表5に示す。
Claims (6)
- 支持体層と粘着剤層とを備える貼付剤であって、
前記粘着剤層が、粒度分布における累積体積が50%となる粒子径D50が10μm以下である二酢酸ナトリウム、アセナピン及び/又はその薬学的に許容される塩、及び感圧性接着基剤を含有しており、かつ、
前記粘着剤層のX線回折法による測定において、前記二酢酸ナトリウムに由来するピーク強度が酢酸ナトリウムに由来するピーク強度よりも大きく、
前記感圧性接着基剤がゴム系粘着剤である、
ことを特徴とする貼付剤。 - 前記粘着剤層において前記アセナピン及び/又はその薬学的に許容される塩のアセナピンフリー体換算含有量が3.4mgである際に、皮膚に24時間接触させたときの時間2〜120時間でのアセナピンフリー体の血漿中濃度−時間曲線下面積(AUC2−120)が8,077pg・hr/mL以上であることを特徴とする請求項1に記載の貼付剤。
- 前記粘着剤層において前記アセナピン及び/又はその薬学的に許容される塩のアセナピンフリー体換算含有量が3.4mgである際に、皮膚に24時間接触させたときの時間2〜120時間でのアセナピンフリー体の血漿中濃度−時間曲線下面積(AUC2−120)が27,000pg・hr/mL以上であり、かつ、アセナピン代謝物のAUC2−120が前記アセナピンフリー体のAUC2−120の20%以下であることを特徴とする請求項1に記載の貼付剤。
- 前記アセナピンの薬学的に許容される塩がマレイン酸アセナピンであることを特徴とする請求項1〜3のうちのいずれか一項に記載の貼付剤。
- 前記粘着剤層が、パルミチン酸イソプロピル、ミリスチルアルコール、オレイン酸、プロピレングリコール、オクチルドデカノール、オレイルアルコール、及びラウリルアルコールからなる群から選択される少なくとも1種を含有することを特徴とする請求項1〜4のうちのいずれか一項に記載の貼付剤。
- 前記粘着剤層が、パルミチン酸イソプロピルを含有することを特徴とする請求項1〜5のうちのいずれか一項に記載の貼付剤。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20210126605A (ko) | 2019-02-28 | 2021-10-20 | 소니 세미컨덕터 솔루션즈 가부시키가이샤 | 복조 회로, 복조 방법, 송신 장치 |
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