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    • 70. 发明申请
    • SEQUENTIAL HEAT TREATMENT OF BLOOD-CLOTTING FACTOR PRODUCTS
    • 血液粘稠因子产品的顺序热处理
    • WO1991001138A1
    • 1991-02-07
    • PCT/US1990001088
    • 1990-02-26
    • INTERNATIONAL MEDICAL TECHNOLOGIES CORP.
    • INTERNATIONAL MEDICAL TECHNOLOGIES CORP.RUBINSTEIN, Alan, I.
    • A61K35/14
    • C12N9/647A61K38/00A61L2/0023C07K14/75C07K14/755
    • Factor VIII concentrate, or Factor IX concentrate, or fibrinogen concentrate, or other clotting-factor product, is subjected to a sequence of heating steps to reduce the infectivity of a virus (such as hepatitis - or AIDS-causing virus), if present. The heating is performed while the concentrate is lyophilized (or dried by another process). The heating steps in the sequence are for two or more different times, and at two or more different temperatures. After the heating sequence, the concentrate is reconstitued for use. This sequential method contemplates greater inactivation of different viral forms, or reduction of the heating required, or both. Reduction of heating requirements may appear as reduced overall heating time, or reduced aggregate power consumption, or both. Advantages include heightened quality-control assurance level. Also possibly, the invention offers some potential for preparation of vaccines against the virus, if sufficient quantity of the virus is present in the concentrate.
    • 将因子VIII浓缩物或因子IX浓缩物或纤维蛋白原浓缩物或其它凝血因子产物经受一系列加热步骤以降低病毒(例如导致肝炎或致艾滋病毒的病毒)的感染性(如果存在)。 在将浓缩物冻干(或通过另一方法干燥)的同时进行加热。 序列中的加热步骤为两个或更多个不同的时间,并且在两个或更多个不同的温度下。 在加热顺序之后,浓缩物重新配制使用。 这种顺序方法考虑到不同病毒形式的更大失活,或所需加热的减少,或两者兼而有之。 加热要求的降低可能出现在总体加热时间减少或总体功耗降低或两者之间。 优势包括提高质量控制保证水平。 还有可能的是,如果浓缩物中存在足够数量的病毒,本发明提供了一些制备抗病毒疫苗的潜力。