JP2012242380A - クロピドグレル抵抗性のリスクを決定するための方法 - Google Patents
クロピドグレル抵抗性のリスクを決定するための方法 Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
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Abstract
【解決手段】a)患者がクロピドグレルを未だ服用していない時点において患者から得た試料中の栓球活性を測定するステップ、及びb)測定された栓球活性を、統計的に決定された判定限界と、比較するステップを備えてなる、患者のクロピドグレル抵抗性のリスクを決定するための方法であって、判定限界を超えて増加している栓球機能によって、その患者に関して、クロピドグレル抵抗性のリスクの増加が示される方法。
【選択図】図1
Description
a)患者がクロピドグレルを未だ服用していない時点において患者から得た試料中の栓球活性を測定するステップ、及び
b)測定された栓球活性を統計的に決定された判定限界と比較するステップ
を備えてなる、患者のクロピドグレル抵抗性のリスクを決定するための方法であって、
判定限界を超えて増加している栓球機能によって、その患者に関して、クロピドグレル抵抗性のリスクの増加が示される方法、を提供する。
試料を保持するための保持チャンバー、
保持チャンバーから測定チャンバーへと試料が通される毛細管、
仕切り要素によって2つの区画に分割されている測定チャンバーであって、そのうちの第1区画が毛細管から試料を取り込む、測定チャンバー、及び
測定チャンバーを2つの区画に分割する仕切り要素であって、試料が第1区画から第2区画へと流れることができる開口部を有する仕切り要素、
を含有する装置を使用することを含む。
ステントの外科的挿入のために選ばれた心血管状態を患っている143人の患者から血液を採取した。ここで、血液は、この術式の通例どおり、300mg又は600mgのクロピドグレル(初回負荷量)を服用する前及び服用の6〜24時間後に採取した。
クロピドグレル摂取前に、異常に増加している栓球機能を正常な栓球機能から、弁別することができ、従ってクロピドグレル抵抗性のリスクの増加を決定することができるように、143人の患者から得た結果を、最適判定限界の計算に使用した。各タイプのカートリッジについて、そして、また、INNOVANCE PFA P2Yカートリッジの場合は、更に、使用した各クエン酸濃度について、個別の判定限界を算出した。ROC曲線分析に使用する分類変数は、対応するクエン酸加全血におけるクロピドグレルに対する応答とした。
クロピドグレル摂取前の3.8%クエン酸加全血の場合の或る患者のINNOVANCE PFA P2Y閉鎖時間が59秒以下であるとすると、この患者がクロピドグレルに応答しない相対リスクは、59秒を上回る閉鎖時間を有する患者のそれより98%高い(相対リスク:1.98;p<0.002;フィッシャーの正確確率検定)。結果の分布を図1に示す。
Claims (12)
- a)患者がクロピドグレルを未だ服用していない時点において患者から得た試料中の栓球活性を測定するステップ、及び
b)測定された栓球活性を、統計的に決定された判定限界と、比較するステップ
を備えてなる、患者のクロピドグレル抵抗性のリスクを決定するための方法であって、
判定限界を超えて増加している栓球機能によって、その患者に関して、クロピドグレル抵抗性のリスクの増加が示される方法。 - 患者が心血管状態若しくは血栓状態を患っているか、ステント埋め込みのために選択されているかの、いずれか一方又は両方である、請求項1に記載の方法。
- ステップa)における栓球活性の測定が、
試料を少なくとも一つの栓球活性化因子と接触させるステップ
を含む、請求項1又は2に記載の方法。 - 試料を栓球活性化因子の組合せと接触させる、請求項3に記載の方法。
- 試料を更に細胞内アデニル酸シクラーゼの活性化因子と接触させる、請求項3又は4に記載の方法。
- ステップa)における栓球活性の測定が、
試料を毛細管に通し、続いて仕切り要素中の開口部に通すステップ、及び
仕切り要素中の開口部における血小板血栓の形成によって開口部が閉鎖されるまでの時間を測定するステップ
を含む、請求項1〜5のいずれか1項に記載の方法。 - 仕切り要素が少なくとも一つの栓球活性化因子を含有する、請求項6に記載の方法。
- ステップa)における栓球活性の測定が、アスピリンの栓球阻害効果に対して非感受性である方法を使用する、請求項1に記載の方法。
- 前記方法が更にP2Y(12)アンタゴニストの栓球阻害効果に対して感受性である、請求項8に記載の方法。
- 試料が全血又は多血小板血漿である、請求項1〜9のいずれか1項に記載の方法。
- ステップa)における栓球活性の測定が、以下の要素:
試料を保持するための保持チャンバー、
保持チャンバーから測定チャンバーへと試料が通される毛細管、
仕切り要素によって2つの区画に分割されている測定チャンバーであって、そのうちの第1区画が毛細管から試料を取り込む、測定チャンバー、及び
測定チャンバーを2つの区画に分割する仕切り要素であって、試料が第1区画から第2区画へと流れることができる開口部を有する仕切り要素、
を含有する装置を使用することを含み、
仕切り要素が少なくとも一つの栓球活性化因子を含有する、請求項1〜10のいずれか1項に記載の方法。 - 仕切り要素が、栓球活性化因子としてのADPと、プロスタグランジンE1(PGE1)、フォルスコリン、プロスタグランジンI2、イロプロスト及びシカプロストからなる群から選択される細胞内アデニル酸シクラーゼの活性化因子と、カルシウムイオンとを含有する、請求項11に記載の方法。
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EP11166477.7 | 2011-05-18 | ||
EP11166477A EP2525228A1 (de) | 2011-05-18 | 2011-05-18 | Verfahren zur Bestimmung des Risikos einer Clopidogrel-Resistenz |
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JP2012242380A true JP2012242380A (ja) | 2012-12-10 |
JP6004736B2 JP6004736B2 (ja) | 2016-10-12 |
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US5854076A (en) * | 1994-06-30 | 1998-12-29 | Dade International Inc. | Method for testing coagulation of blood through bioactive porous partition members |
JP2007298511A (ja) * | 2006-04-28 | 2007-11-15 | Dade Behring Marburg Gmbh | 血小板機能の流動状態下での測定方法および装置 |
JP2009543063A (ja) * | 2006-07-07 | 2009-12-03 | シーメンス・ヘルスケア・ダイアグノスティックス・インコーポレイテッド | 心臓血管有害事象を起こす危険性が高い患者を同定する方法 |
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AU717559B2 (en) | 1996-03-22 | 2000-03-30 | Dade Behring Inc. | Combination reagent holding and test device |
DE102006020386A1 (de) * | 2006-04-28 | 2007-10-31 | Dade Behring Marburg Gmbh | Verfahren zur Bestimmung der Thrombozytenfunktion unter Flussbedingungen |
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- 2011-05-18 EP EP11166477A patent/EP2525228A1/de not_active Withdrawn
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2012
- 2012-05-07 EP EP12166921.2A patent/EP2525229B1/de active Active
- 2012-05-09 JP JP2012107777A patent/JP6004736B2/ja active Active
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Publication number | Priority date | Publication date | Assignee | Title |
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US5854076A (en) * | 1994-06-30 | 1998-12-29 | Dade International Inc. | Method for testing coagulation of blood through bioactive porous partition members |
JP2007298511A (ja) * | 2006-04-28 | 2007-11-15 | Dade Behring Marburg Gmbh | 血小板機能の流動状態下での測定方法および装置 |
JP2009543063A (ja) * | 2006-07-07 | 2009-12-03 | シーメンス・ヘルスケア・ダイアグノスティックス・インコーポレイテッド | 心臓血管有害事象を起こす危険性が高い患者を同定する方法 |
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EP2525229B1 (de) | 2015-03-18 |
JP6004736B2 (ja) | 2016-10-12 |
EP2525229A1 (de) | 2012-11-21 |
EP2525228A1 (de) | 2012-11-21 |
US20120295291A1 (en) | 2012-11-22 |
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