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    • 2. 发明申请
    • PROCESS FOR PREPARING A PHARMACEUTICAL FORMULATION OF CONTRAST AGENTS
    • 制备药物制剂的方法
    • US20110129425A1
    • 2011-06-02
    • US12918259
    • 2009-02-18
    • Dominique MeyerClaire CorotMarc PortVincent BarbotinBruno Bonnemain
    • Dominique MeyerClaire CorotMarc PortVincent BarbotinBruno Bonnemain
    • A61K49/12C07D257/02A61P43/00
    • A61K49/108A61K9/0019A61K31/28A61K45/06A61K47/18A61K49/106G01N33/15
    • The invention relates to a process for preparing a liquid pharmaceutical formulation containing a complex of macrocyclic chelate with a lanthanide and a mol/mol amount of free macrocyclic chelate of between 0.002% and 0.4%, advantageously between 0.02% and 0.3% and very advantageously between 0.025% and 0.25%, the macrocyclic chelate advantageously being chosen from DOTA, NOTA, DOTAGA, DO3A, BT-DO3A, HP-DO3A and PCTA, and is preferably DOTA, the said process comprising the following successive steps: b) preparation of a liquid pharmaceutical composition containing, firstly, the complex of macrocyclic chelate with a lanthanide, and, secondly, free macrocyclic chelate and/or free lanthanide; c) measurement in the pharmaceutical formulation obtained in step b) of the concentration of free macrocyclic chelate C ch1 and/or of free lanthanide C lan1; d) adjustment of C ch1 and/or of C lan1 so as to obtain C ch1=C tch1 and C lan1=0, wherein C t ch1 is the target concentration of free macrocyclic chelate in the final liquid pharmaceutical formulation.
    • 本发明涉及制备含有大环螯合物与镧系元素络合物和摩尔/摩尔量的游离大环螯合物的液体药物制剂的方法,其含量为0.002%至0.4%,有利地为0.02%至0.3%,非常有利地介于 0.025%和0.25%,大环螯合物有利地选自DOTA,NOTA,DOTAGA,DO3A,BT-DO3A,HP-DO3A和PCTA,并且优选为DOTA,所述方法包括以下连续步骤:b) 液体药物组合物首先含有大环螯合物与镧系元素的复合物,其次是游离的大环螯合物和/或游离的镧系元素; c)在步骤b)中获得的药物制剂中测量游离大环螯合物C ch1和/或游离镧​​系元素C lan1的浓度; d)调整C ch1和/或C lan1,以获得C ch1 = C tch1和C lan1 = 0,其中C t ch1是最终液体药物制剂中游离大环螯合物的目标浓度。