JP2016534083A - 血液因子に対する寛容を誘導することによって血友病を処置する方法 - Google Patents
血液因子に対する寛容を誘導することによって血友病を処置する方法 Download PDFInfo
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- JP2016534083A JP2016534083A JP2016526024A JP2016526024A JP2016534083A JP 2016534083 A JP2016534083 A JP 2016534083A JP 2016526024 A JP2016526024 A JP 2016526024A JP 2016526024 A JP2016526024 A JP 2016526024A JP 2016534083 A JP2016534083 A JP 2016534083A
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Abstract
Description
本発明は、血液因子に対する寛容を誘導することによって血友病を処置する方法に関する。より具体的には、本発明は、皮膚上の経路を通して血友病を処置する新規方法に関する。
血友病は、第VIII因子又は第IX因子の欠乏症に起因する自然発生的な出血又はより長時間におよぶ出血を特徴とする遺伝性疾患である。
本発明は、血友病及び/又は血友病の症状の治療及び/又は予防の新規方法を提供する。より具体的には、本発明は、初めて、血友病の効果的な処置を、皮膚上の免疫療法を通して成し遂げることができることを示す。
本発明は、皮膚上への投与を使用して対象における血友病及び/又は血友病の症状を治療及び/又は予防する方法に関する。
−皮膚パッチ、
−血液因子、好ましくは第VIII因子、及び
−場合により1つ又はいくつかの担体
を含む、薬物送達システムに関し、皮膚パッチは、個体の皮膚部分に付着し、血液因子、好ましくは第VIII因子を個体の皮膚に針を要することなく送達するように設計されている。
−血液因子、好ましくは第VIII因子を含む皮膚パッチ、及び
−血液因子、好ましくは第VIII因子を含む注射用組成物
を含むキットに関する。
1−BドメインレスFVIII(FVIII−HSQ)の調製及び精製
2工程のイオン交換クロマトグラフィー手順を使用して、無血清の馴化培地からHSQを単離する。簡潔に言えば、HSQ含有培地を、0.15M NaCl、20mM HEPES、5mM CaCl2、0.01%Tween80(pH7.4)中で平衡化されたHiLoad26/10spセファロースHPにローディングする。HSQを、同じ緩衝液中の0.2〜0.65M NaCl線形勾配を用いて溶出する。FVIIIを含有する画分をプールし、同じ緩衝液中で0.15M NaClまで希釈し、Resource Qタンパク質液体クロマトグラフィーカラムにアプライし、0.2〜1.0M NaCl線形勾配を用いて溶出する。画分を、シスメックスCA−500全自動血液凝固測定装置及びA280での吸光度及び4〜12%SDSポリアクリルアミドゲル電気泳動を使用して、1段階の凝固アッセイによって分析する。ピークのFVIII活性を含有する画分をプールし、20mMトリス、5mM CaCl2、0.01%Tween80(pH7.4)に対してアミコンウルトラセル遠心式フィルター(10kDaのカットオフ値)を使用して緩衝液を交換し、0.2μmのシリンジフィルターを使用して濾過する。比活性を、280nmでの吸光度並びに予測されるチロシン、トリプトファン及びシステイン含量から決定されたモル吸光係数を使用して計算する。
以下に報告した実験に使用されるパッチは、米国特許出願番号第2010/0297213号に開示されたプロセスに従って製造される。
血友病を処置するための皮膚上技術の成否及び効力を、FVIII欠損マウスモデルにおいて評価した。8〜10週令のC57Bl/6バックグラウンドを有する10匹のマウスの4つのグループに、ヒト完全長の組換えFVIII(FVIII−FL)2μgを静脈内に投与する。続いて、マウスを、Bドメインの欠失したFVIII(FVIII−HSQ)(グループII)50μg又は血漿に由来するFVIII(グループIII)50μg、又はFVIII−HSQ+AhRリガンド(グループIV)50μg、又は陰性対照としての空のパッチ(グループI)を含有する実施例2に記載のようなパッチデバイスで処置する。処置は8週間連続して行なう。
抗FVIII体液性免疫応答をELISAによって評価する。抗FVIII IgGの検出のために、ELISAプレート(Nunc、ロスキレ、デンマーク)を組換えFVIII(2μg/ml、FVIII−HSQ)を用いて4℃で一晩かけてコーティングする。プレートをPBS及び1%BSAを用いて遮断する。その後、血清希釈液を37℃で1時間インキュベートする。結合したIgGをセイヨウワサビペルオキシダーゼに結合させたモノクローナル抗マウスIgG(Southern Biotech)及び基質を用いて顕現させる。マウスモノクローナル抗FVIII IgG ESH8(American Diagnostica, Stamford, CT, USA)を標準物質として使用する。結果を、抗FVIII IgG ESH8均等物 1mlあたりのμgとして表現する。
FVIII阻害剤のレベルを、機能的な凝固アッセイによって評価する。血清を、標準的なヒト血漿(Dade- Behring、マールブルク、ドイツ)と共に37℃で2時間インキュベートする。凝血原FVIIIの残存活性を発色アッセイを用いて製造業者の推奨(Dade-Behring)に従って測定する。血清1mlあたりのベセスダ単位(BU)で表現されるベセスダ力価を、以前に記載されているように計算する。ベセスダ力価は、50%のFVIII残存活性を生じる血清の希釈度の逆数として定義される。
Claims (14)
- 必要とする対象における血友病Aを処置する方法に使用するための、第VIII因子を含む皮膚パッチデバイス。
- デバイスの適用が、前記対象において第VIII因子に対する免疫寛容を誘導する、請求項1の使用のための皮膚パッチデバイス。
- 同時投与又は順次投与することによる必要とする対象における血友病の処置のために使用するための、注射用第VIII血液因子組成物と組み合わせた、第VIII因子を含む皮膚パッチデバイス。
- 前記方法が、第VIII因子と皮膚との接触及び第VIII因子の表皮への浸透を可能とする条件下での、対象の皮膚の少なくとも1つの領域へのデバイスの反復適用を含む、請求項1〜3のいずれか一項記載のその使用のための皮膚パッチデバイス。
- 軽度、やや重度、又は重度の形の血友病Aの処置に使用するための、請求項1〜4のいずれか一項記載の皮膚パッチデバイス。
- 第VIII因子が、完全長又はトランケートされた第VIII因子ポリペプチドである、請求項1〜5のいずれか一項記載の使用のための皮膚パッチデバイス。
- 第VIII因子が、Bドメインレス組換え第VIII因子である、請求項1〜6のいずれか一項記載の使用のための皮膚パッチデバイス。
- 第VIII因子が、血漿をベースとしたタンパク質又は組換えタンパク質である、請求項1〜7のいずれか一項記載の使用のための皮膚パッチデバイス。
- 第VIII因子が、乾燥形で皮膚パッチデバイス上にある、請求項1〜8のいずれか一項記載の使用のための皮膚パッチデバイス。
- 前記の第VIII因子が、アジュバントの非存在下で適用される、請求項1〜9のいずれか一項記載の使用のための皮膚パッチデバイス。
- 第VIII因子と場合により1つ又はいくつかの薬学的に許容される賦形剤又は担体とを含む、皮膚パッチデバイス。
- −皮膚パッチ、
−血液因子、好ましくは第VIII因子、及び
−場合により1つ又はいくつかの担体
を含む薬物送達システムであって、皮膚パッチは、個体の皮膚部分に付着し、血液因子、好ましくは第VIII因子を対象の皮膚に針を要することなく送達するように設計されている、前記薬物送達システム。 - −第VIII因子を含む皮膚パッチ、及び
−第VIII因子を含む注射用組成物
を含むキット。 - 必要とする対象において第VIII因子に対する寛容を誘導するに十分な条件下で、第VIII因子と場合により薬学的に許容される担体とを含む皮膚パッチデバイスを、それを必要とする対象の皮膚領域に反復適用することを含む、それを必要とする対象における血友病の処置法。
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PCT/EP2014/072508 WO2015059121A1 (en) | 2013-10-22 | 2014-10-21 | Method of treating haemophilia by inducing tolerance to blood factors |
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AU (1) | AU2014339034A1 (ja) |
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WO2002060917A2 (en) * | 2000-12-01 | 2002-08-08 | Regents Of The University Of Minnesota | Method to treat hemophilia |
JP2011502478A (ja) * | 2007-11-01 | 2011-01-27 | ユニバーシティー オブ ロチェスター | 安定性が増大した組換え型第viii因子 |
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US5560922A (en) * | 1986-05-30 | 1996-10-01 | Rutgers, The State University Of New Jersey | Transdermal absorption dosage unit using a polyacrylate adhesive polymer and process |
SE465222C5 (sv) | 1989-12-15 | 1998-02-10 | Pharmacia & Upjohn Ab | Ett rekombinant, humant faktor VIII-derivat och förfarande för dess framställning |
GB2267435A (en) * | 1992-06-01 | 1993-12-08 | British Tech Group | Factor VIII |
US6458563B1 (en) | 1996-06-26 | 2002-10-01 | Emory University | Modified factor VIII |
US7635488B2 (en) | 2001-03-13 | 2009-12-22 | Dbv Technologies | Patches and uses thereof |
FR2822049B1 (fr) | 2001-03-13 | 2003-08-01 | Dbv Medica 1 | Patch destine notamment a depister l'etat de sensibilisation d'un sujet a un allergene, procede de fabrication et utilisation |
WO2006003183A1 (de) | 2004-07-02 | 2006-01-12 | Alois Jungbauer | Peptide zur blockierung von fviii-inhibitoren |
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US8071545B2 (en) * | 2005-03-15 | 2011-12-06 | Lewis S. Coleman, Md, Inc. | Therapies and compositions for controlling the stress mechanism and for stabilizing hemostasis in an organism |
EP1985631A1 (en) | 2007-04-20 | 2008-10-29 | LFB Biotechnologies | Demannosylated recombinant factor VIII for the treatment of patients with hemophiila A |
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WO2002060917A2 (en) * | 2000-12-01 | 2002-08-08 | Regents Of The University Of Minnesota | Method to treat hemophilia |
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