Method for freeze-drying nucleic acid/block copolymer/cationic surfactant complexes
申请人:Vical Incorporated.
公开号:US20040157789A1
公开(公告)日:2004-08-12
This invention relates generally to the freeze-drying of formulations comprising a polynucleotide, a block copolymer and a cationic surfactant. In the presence of a cryoprotectant or bulking agent, a formulation can be freeze-dried, whereby upon reconstitution of the dried formulation, the microparticles maintain their optimal size and aggregation or fusion is avoided.
本发明一般涉及由多核苷酸、嵌段共聚物和阳离子表面活性剂组成的制剂的冷冻干燥。在有低温保护剂或膨松剂存在的情况下,制剂可被冷冻干燥,从而在对干燥的制剂进行复溶时,微颗粒可保持其最佳尺寸,避免聚集或融合。