FORMULATIONS COMPRISING A MEGLUMINE SALT OF THE METAL COMPLEX GD-DOTA
    34.
    发明公开
    FORMULATIONS COMPRISING A MEGLUMINE SALT OF THE METAL COMPLEX GD-DOTA 审中-公开
    包含金属络合物GD-DOTA的巨型盐的制剂

    公开(公告)号:EP3223863A1

    公开(公告)日:2017-10-04

    申请号:EP15801443.1

    申请日:2015-11-27

    申请人: GE Healthcare AS

    IPC分类号: A61K49/10 A61K49/18

    摘要: The present invention relates to a method of preparation of formulations of gadolinium metal complexes of the macrocyclic chelator DOTA, which further comprise a small excess of free DOTA. The method uses controlled conditions such that excess gadolinium is present as a precipitate of gadolinium oxide, with filtration to remove the excess, prior to the addition of a defined excess of DOTA chelator. Also provided is a method of preparation of MRI contrast agents based on Gd-DOTA.

    摘要翻译: 本发明涉及制备大环螯合剂DOTA的钆金属配合物的制剂的方法,其进一步包含少量过量的游离DOTA。 该方法使用受控条件,使得过量的钆以氧化钆的沉淀物的形式存在,在添加限定过量的DOTA螯合剂之前通过过滤除去过量的钆。 还提供了基于Gd-DOTA制备MRI造影剂的方法。