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    • 8. 发明授权
    • Radiotherapeutic formulations containing 224RA and a method for their production
    • 含224RA的放射治疗剂及其制备方法
    • US07887782B2
    • 2011-02-15
    • US10362049
    • 2001-08-07
    • Uwe SchwarzRolf Daniels
    • Uwe SchwarzRolf Daniels
    • A61K51/00A61M36/14
    • A61K51/02A61K51/121
    • The invention relates to novel radiotherapeutic formulations containing 224Ra and methods for their production. The invention discloses, in particular, radiotherapeutic formulations comprising at least one salt of the isotope 224Ra, which are characterized in that the content of other radionuclides, in particular, the respective content of certain longeval radionuclides does not exceed a specific numerical value in mBq/g. The invention also relates to a method for producing radiotherapeutic formulations of this type, which is characterized by the following steps: after at least one centrifugation of an aqueous suspension of the compound 228Th(OH)4 and optionally after the resuspension of the raw sediment obtained in said centrifugation, the precipitated 228Th(OH)4 sediment is separated. The supernatant solution of a 224Ra salt that has been obtained is subsequently subjected to sterile filtration and is then made up to the required dose. Finally, said solution is sterilized and bottled in ampoules in a manner known per se.
    • 本发明涉及含有224Ra的新型放射治疗剂及其制备方法。 本发明特别公开了包含至少一种同位素224Ra盐的放射治疗制剂,其特征在于其它放射性核素的含量,特别是某些长寿放射性核素的含量不超过特定的数值,以mBq / G。 本发明还涉及这种类型的放射治疗剂的制备方法,其特征在于以下步骤:在化合物228Th(OH)4的水性悬浮液至少一次离心后,任选地在所得到的沉淀物再悬浮后 在离心过程中,析出的沉淀物228Th(OH)4分离。 随后将已经获得的224Ra盐的上清液进行无菌过滤,然后使其达到所需剂量。 最后,所述溶液以本身已知的方式灭菌并装入安瓿瓶中。