Method of producing immunoglobulin preparations for intravenous injection
    5.
    发明授权
    Method of producing immunoglobulin preparations for intravenous injection 失效
    生产用于静脉注射的免疫抑制素制剂的方法

    公开(公告)号:EP0246579B1

    公开(公告)日:1993-08-04

    申请号:EP87107112.2

    申请日:1987-05-16

    IPC分类号: A61K39/395

    摘要: A method of producing immunoglobulin preparations for intravenous injection which starts with an immunoblobulin-containing fraction and comprises the treatment steps of: (a) treating said fraction with 4-l0 weight/volume percent of polyethylene glycol having a molecular weight of l,000-l0,000 under conditions of pH 4-6, ion strength 0.000l-0.l M and temperature 0-4 DEG C and recovering the supernatant, (b) treating the supernatant obtained in step (a) with l0-l5 weight/volume percent of polyethylene glycol having a molecular weight. of l,000-l0,000 under conditions of pH 6-9, ion strength 0.000l-0.l M and temperature 0-4 DEG C and recovering the resulting precipitate, and (c) heat-treating, in any desired step, said immunoglobulin in the presence of a stabilizer under conditions sufficient to inactivate contaminant viruses. The preparations obtained according to the invention retain immunoglobulins without substantial inactivation thereof, and are substantially free of such contaminants as anti-human blood group substance antibodies. With contaminant viruses inactivated as a result of the heat treatment, said preparations have good solubility and are sufficiently low in anticomplement activity.

    Method of virus-inactivating heat treatment of gamma-globulin
    10.
    发明公开
    Method of virus-inactivating heat treatment of gamma-globulin 失效
    恶性肿瘤热灭活治疗方法

    公开(公告)号:EP0196761A3

    公开(公告)日:1986-10-22

    申请号:EP86301196

    申请日:1986-02-20

    IPC分类号: A61L02/04

    摘要: A gramma-globulin aqueous solution can be subjected to sterile heat-treatment without losing its activity when the treatment is conducted in the presence of at least one stabilizer which is a monosaccharide, disaccharide or sugaralcohol added to the solution. The stabilizer serves to decrease the harmful polymer or anticomplement activity of the gamma-globulin before the treatment but to maintain the titer of a wide variety of antibodies to various viruses and bacteria, while the infectivity of viruses possibly contained is completely removed. An additional stabilizer, which is a neutral amino, a neutral inorganic salt, an organic carboxylic acid salt or a surface active agent, assists the abovementioned stabilizer when used together with it.