JP6038164B2 - 止血組成物 - Google Patents
止血組成物 Download PDFInfo
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- JP6038164B2 JP6038164B2 JP2014537608A JP2014537608A JP6038164B2 JP 6038164 B2 JP6038164 B2 JP 6038164B2 JP 2014537608 A JP2014537608 A JP 2014537608A JP 2014537608 A JP2014537608 A JP 2014537608A JP 6038164 B2 JP6038164 B2 JP 6038164B2
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Description
本発明は、止血組成物およびこのような組成物を作製するためのプロセスに関する。
生体適合性であり、生分解性であり、乾燥した安定な顆粒状材料を含む乾燥した貯蔵安定形態にある止血組成物は、例えば、WO98/008550AもしくはWO2003/007845Aにより公知である。これら製品は、止血のために当該分野で成功裏に適用されてきた。Floseal(登録商標)は、トロンビン含有溶液中で膨潤されて流動性ペーストを形成する顆粒状ゼラチンマトリクスからなる非常に有効な止血剤の例である。
従って、本発明は、止血における使用に適した粒状形態にある架橋ゼラチンを含む止血組成物を提供し、ここで上記組成物は、15.0〜19.5%(w/w) 架橋ゼラチン、好ましくは、16.0〜19.5%(w/w)、16.5〜19.5%(w/w)、17.0〜18.5%(w/w)もしくは17.5〜18.5%(w/w)、より好ましくは、16.5〜19.0%(w/w)もしくは16.8〜17.8%(w/w)、特に好ましくは、16.5〜17.5%(w/w)を含むペースト形態において存在し、上記組成物は、押し出し増強剤、特に、アルブミンを含む。
特定の実施形態では、例えば以下が提供される:
(項目1)
止血における使用に適した粒状形態の架橋ゼラチンを含む止血組成物であって、ここで該組成物は、15.0〜19.5%(w/w) 架橋ゼラチン、好ましくは、16.0〜19.5%(w/w)、16.5〜19.5%(w/w)、17.0〜18.5%(w/w)もしくは17.5〜18.5%(w/w)、より好ましくは、16.5〜19.0%(w/w)もしくは16.8〜17.8%(w/w)、特に好ましくは、16.5〜17.5%(w/w)を含むペースト形態において存在し、該組成物は、押し出し増強剤を含む、止血組成物。
(項目2)
前記押し出し増強剤は、0.5〜5.0%(w/w)、好ましくは、1.0〜5.0%(w/w)、好ましくは、2.0〜4.5%(w/w)、より好ましくは、1.5〜5.0%(w/w)、特に好ましくは、約1.5%(w/w)の量のアルブミンである、項目1に記載の止血組成物。
(項目3)
前記架橋ゼラチンは、グルタルアルデヒド架橋ゼラチンもしくはゲニピン架橋ゼラチンである、項目1〜2に記載の止血組成物。
(項目4)
前記架橋ゼラチンは、タイプBゼラチンである、項目1〜3のいずれか1項に記載の止血組成物。
(項目5)
前記架橋ゼラチンは、顆粒状材料として存在する、項目1〜4のいずれか1項に記載の止血組成物。
(項目6)
前記架橋ゼラチンは、100〜1000μm、好ましくは、200〜800μm、最も好ましくは、350〜550μmの粒子サイズを有する、項目1〜5のいずれか1項に記載の止血組成物。
(項目7)
前記組成物は、トロンビン、好ましくは、10〜1000 I.U. トロンビン/ml、特に、250〜700 I.U. トロンビン/mlを含む、項目1〜6のいずれか1項に記載の止血組成物。
(項目8)
創傷、出血、損傷した組織、出血している組織および/もしくは骨欠損からなる群より選択される傷害の処置における使用のための、項目1〜7のいずれか1項に記載の止血組成物。
(項目9)
創傷、出血、損傷した組織および/もしくは出血している組織からなる群より選択される傷害を処置する方法であって、該方法は、項目1〜7のいずれか1項に記載の止血組成物を傷害の部位に投与する工程を包含する、方法。
(項目10)
創傷、出血、損傷した組織および/もしくは出血している組織からなる群より選択される傷害の処置のための架橋ゼラチンの流動性ペーストを作成するためのキットであって、該キットは、
a)15.0〜19.5%(w/w)架橋ゼラチン、好ましくは、16.0〜19.5%(w/w)、16.5〜19.5%(w/w)、17.0〜18.5%(w/w)もしくは17.5〜18.5%(w/w)、より好ましくは、16.5〜19.0%(w/w)もしくは16.8〜17.8%(w/w)、特に好ましくは、16.5〜17.5%(w/w)を含む流動性ペーストに再構成されることになっている粒状形態にある架橋ゼラチンを含む乾燥止血組成物、および
b)該止血組成物の再構成のための薬学的に受容可能な希釈剤、
を含み、
ここで該組成物もしくは該希釈剤のいずれかは、該再構成されたペーストにおいて0.5〜5.0%(w/w)、好ましくは、1.0〜5.0%(w/w)、好ましくは、2.0〜4.5%(w/w)、より好ましくは、1.5〜5.0%(w/w)、特に好ましくは、約1.5%(w/w)のアルブミン濃度をもたらす量において、アルブミンを含む、
キット。
(項目11)
前記薬学的に受容可能な希釈剤は、バッファーもしくはバッファー系を好ましくは、pH 3.0〜10.0において含む、項目10に記載のキット。
(項目12)
前記薬学的に受容可能な希釈剤は、トロンビン、好ましくは、10〜1000 I.U. トロンビン/ml、特に、250〜700 I.U. トロンビン/mlを含む、項目10または11に記載のキット。
(項目13)
前記薬学的に受容可能な希釈剤は、NaCl、CaCl 2 および酢酸ナトリウムからなる群より選択される物質を含む、項目10〜12のいずれか1項に記載のキット。
(項目14)
項目1〜7のいずれか1項に記載の止血組成物のすぐに使用できる形態を提供するための方法であって、ここで該止血組成物は、第1のシリンジ中に提供され、再構成のための希釈剤は、第2のシリンジ中に提供され、該第1のシリンジと該第2のシリンジとは、互いに接続されており、流体は、該第1のシリンジの中に導かれて、該止血組成物の流動性形態を生じ;そして必要に応じて、該止血組成物の該流動性形態を該第2のシリンジへと少なくとも1回もどす、方法。
(項目15)
前記止血組成物の前記流動性形態は、50%(w/w)より多くが100〜1000μmのサイズであり、好ましくは、80%(w/w)より多くが100〜1000μmのサイズである粒子を含む、項目14に記載の方法。
本発明は、止血における使用に適した粒状形態にある架橋ゼラチンを含む止血組成物を提供し、ここで上記組成物は、15.0〜19.5%(w/w) 架橋ゼラチン(=最終組成物の重量あたりの乾燥架橋ゼラチンの重量)、好ましくは、16.0〜19.5%(w/w)、16.5〜19.5%(w/w)、17.0〜18.5%(w/w)もしくは17.5〜18.5%(w/w)、より好ましくは、16.5〜19.0%(w/w)もしくは16.8〜17.8%(w/w)、特に好ましくは、16.5〜17.5%(w/w)を含むペースト形態において存在し、上記組成物は、押し出し増強剤を含む。
a)15.0〜19.5%(w/w) 架橋ゼラチン(=最終組成物の重量に対する乾燥ゼラチンの重量)、好ましくは、16.0〜19.5%(w/w)、16.5〜19.5%(w/w)、17.0〜18.5%(w/w)もしくは17.5〜18.5%(w/w)、より好ましくは、16.5〜19.0%(w/w)もしくは16.8〜17.8%(w/w)、特に好ましくは、16.5〜17.5%(w/w)の架橋ゼラチンを含む流動性ペーストへと再構成されることになっている、粒状形態にある架橋ゼラチンを含む乾燥止血組成物、ならびに
b)上記止血組成物の再構成のための薬学的に受容可能な希釈剤
を含み、
ここで上記組成物もしくは上記希釈剤のいずれかは、適切な量、例えば、(アルブミンに関しては)0.5〜5.0%(w/w)(=最終組成物の重量あたりの押し出し増強剤の重量)、好ましくは、1.0〜5.0%(w/w)、好ましくは、2.0〜4.5%(w/w)、より好ましくは、1.5〜5.0%(w/w)、特に好ましくは、約1.5%(w/w)の再構成ペーストにおけるアルブミン濃度をもたらす量において、押し出し増強剤、特に、アルブミンを含む。
動物モデル
このモデルに関して、正中線開腹を行い、続いて、外科的切開からの出血を止めるために電気焼灼を行う。肝臓を露出させ、葉を単離する。10mm直径のパンチ生検を使用して、コア組織を取り出した一連の2つの非全層損傷(non−full thickness lesion)(深さ約5mm)を作る。10秒間にわたって各損傷からの流れ出た血液を予め秤量したガーゼで集めることを含め、予備処置評価をこの損傷に対して行う。
ブタ肝臓モデルにおけるインビボ評価のための試験物品を、架橋ゼラチン(25g/lもしくは50g/lのヒト血清アルブミンをトロンビン溶液(さらなる2.5% PEGありもしくはなし)中に有する14.5%および17.5%の濃度において)のペーストを調製することによって作製した。
上記蛍光データは、グルタルアルデヒド架橋ゼラチンが均質に架橋されていないことを示す。代わりに、架橋密度は、上記顆粒の縁部周辺でより高いようであり、上記顆粒の中心部は、上記縁部より架橋が顕著に少ない。対照的に、上記ゲニピン架橋ゼラチンは、顆粒全体を通じて均一に(均質に)架橋されたようである。蛍光強度に対する実質的エッジ効果はない。上記ゲニピン架橋物質およびグルタルアルデヒド架橋材料の蛍光強度は、架橋剤自体に帰する潜在的蛍光差が原因で、直接比較できない。しかし、上記AFMで測定した弾性率測定値は、上記ゲニピン架橋ゼラチンが上記グルタルアルデヒド架橋ゼラチンより硬いことを示す。上記グルタルアルデヒド架橋ゼラチンは、より軟らかい(より可撓性)ようである。
Claims (16)
- 止血における使用に適した粒状形態の架橋ゼラチンを含む止血組成物であって、ここで該組成物は、15.0〜19.5%(w/w)架橋ゼラチンを含むペースト形態において存在し、該組成物は、押し出し増強剤を含み、該押し出し増強剤は、0.5〜5.0%(w/w)の量のアルブミンである、止血組成物。
- 前記押し出し増強剤は、1.0〜5.0%(w/w)の量のアルブミンである、請求項1に記載の止血組成物。
- 前記架橋ゼラチンは、グルタルアルデヒド架橋ゼラチンもしくはゲニピン架橋ゼラチンである、請求項1または2に記載の止血組成物。
- 前記架橋ゼラチンは、タイプBゼラチンである、請求項1〜3のいずれか1項に記載の止血組成物。
- 前記架橋ゼラチンは、顆粒状材料として存在する、請求項1〜4のいずれか1項に記載の止血組成物。
- 前記架橋ゼラチンは、100〜1000μmの粒子サイズを有する、請求項1〜5のいずれか1項に記載の止血組成物。
- 前記組成物は、10〜1000 I.U. トロンビン/mlのトロンビンを含む、請求項1〜6のいずれか1項に記載の止血組成物。
- 創傷、出血、損傷した組織、出血している組織および/もしくは骨欠損からなる群より選択される傷害の処置における使用のための、請求項1〜7のいずれか1項に記載の止血組成物。
- 創傷、出血、損傷した組織および/もしくは出血している組織からなる群より選択される傷害を処置するための、請求項1〜7のいずれか1項に記載の止血組成物であって、該組成物が傷害の部位に投与されることを特徴とする、組成物。
- 創傷、出血、損傷した組織および/もしくは出血している組織からなる群より選択される傷害の処置のための架橋ゼラチンの流動性ペーストを作成するためのキットであって、該キットは、
a)15.0〜19.5%(w/w)架橋ゼラチンを含む流動性ペーストに再構成されることになっている粒状形態にある架橋ゼラチンを含む乾燥止血組成物、および
b)該止血組成物の再構成のための薬学的に受容可能な希釈剤、
を含み、
ここで該組成物もしくは該希釈剤のいずれかは、該再構成されたペーストにおいて0.5〜5.0%(w/w)のアルブミン濃度をもたらす量において、アルブミンを含む、
キット。 - 前記薬学的に受容可能な希釈剤は、バッファーもしくはバッファー系をpH
3.0〜10.0において含む、請求項10に記載のキット。 - 前記薬学的に受容可能な希釈剤は、10〜1000 I.U. トロンビン/mlのトロンビンを含む、請求項10または11に記載のキット。
- 前記薬学的に受容可能な希釈剤は、NaCl、CaCl2および酢酸ナトリウムからなる群より選択される物質を含む、請求項10〜12のいずれか1項に記載のキット。
- 請求項1〜7のいずれか1項に記載の止血組成物のすぐに使用できる形態を提供するための方法であって、ここで該止血組成物は、第1のシリンジ中に提供され、再構成のための希釈剤は、第2のシリンジ中に提供され、該第1のシリンジと該第2のシリンジとは、互いに接続されており、該希釈剤は、該第1のシリンジの中に導かれて、該止血組成物の流動性形態を生じ;そして必要に応じて、該止血組成物の該流動性形態を該第2のシリンジへと少なくとも1回もどす、方法。
- 請求項1〜7のいずれか1項に記載の止血組成物であって、ここで該止血組成物は、第1のシリンジ中に提供され、再構成のための希釈剤は、第2のシリンジ中に提供され、該第1のシリンジと該第2のシリンジとは、互いに接続されており、該希釈剤は、該第1のシリンジの中に導かれて、該止血組成物の流動性形態を生じ;そして必要に応じて、該止血組成物の該流動性形態が該第2のシリンジへと少なくとも1回もどされる、止血組成物。
- 前記止血組成物の前記流動性形態は、50%(w/w)より多くが100〜1000μmのサイズである粒子を含む、請求項14に記載の方法。
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