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    • 7. 发明申请
    • SPRAY-DRYING HAEMOGLOBIN
    • 喷雾干燥HEMOGLOBIN
    • WO1997010268A1
    • 1997-03-20
    • PCT/NL1996000355
    • 1996-09-10
    • STICHTING CENTRAAL LABORATORIUM VAN DE BLOEDTRANSFUSIEDIENST VAN HET NEDERLANDSE RODE KRUISTAHEY, Jeroen, Joost, ValentijnHENS, Henri, Joseph, HubertBAKKER, Joachim, CornelisBIESSELS, Petrus, Theodurus, MariaBLEEKER, Willem, Karel
    • STICHTING CENTRAAL LABORATORIUM VAN DE BLOEDTRANSFUSIEDIENST VAN HET NEDERLANDSE RODE KRUIS
    • C07K14/805
    • C07K14/805
    • The present invention relates to a method to obtain a dried haemoglobin product, that is stable during extended storage (over years) at ambient temperature (4-30 DEG C) and dissolves quickly (within 10 minutes, preferably within 5 minutes, more preferably within 1 minute), easily (without the use of special facilities) and completely (in a clear, dark red solution with minimal particulate contamination). The solution reconstituted from the dried haemoglobin has sufficient low levels of methaemoglobin to effectively function as an oxygen carring solution after reconstitution and upon parenteral administration to a patient. Besides the reconstituted product has a physiologically acceptable formulation (osmolarity: typically 250-350 mosm/1) and has colloid-osmotic activity. The drying process is applicable for haemoglobin, modified haemoglobin, recombinant haemoglobin and/or encapsulated haemoglobin preparations. The process to obtain the dried haemoglobin product is based on spray-granulation with addition of one or more protective additives. Besides, a carrier substance might be used to reduce particulate contamination. To prevent oxidation of haemoglobin, the process and storage can be performed under oxygen free conditions by the use of nitrogen or any other inert gas.
    • 本发明涉及一种获得干燥血红蛋白产品的方法,其在环境温度(4-30℃)的延长储存(多年)内是稳定的,并快速溶解(在10分钟内,优选在5分钟内,更优选在 1分钟),容易(不使用特殊设施)和完全(在清洁,深红色溶液中,微粒污染最小)。 从干燥的血红蛋白重建的溶液具有足够低水平的高铁血红蛋白,以便在重建后和向患者肠胃外给药时有效地起氧护甲溶液的作用。 此外,重构产品具有生理可接受的制剂(渗透压:通常为250-350 mosm / l),并且具有胶体渗透活性。 干燥过程适用于血红蛋白,修饰血红蛋白,重组血红蛋白和/或包封的血红蛋白制剂。 获得干燥的血红蛋白产物的方法是基于喷雾造粒,加入一种或多种保护性添加剂。 此外,可以使用载体物质来减少颗粒污染。 为了防止血红蛋白的氧化,可以通过使用氮气或任何其它惰性气体在无氧条件下进行该过程和储存。