Processes and Compositions for Liposomal and Efficient Delivery of Gene Silencing Therapeutics
申请人:Marina Biotech, Inc.
公开号:EP2902013A1
公开(公告)日:2015-08-05
Processes and compositions for liposomal delivery of therapeuticals prepared by contacting an aqueous solution of an active agent with a solution of liposome-forming components containing one or more DILA2 amino acid compounds or lipids in organic solvent to form an impinging stream. A protocol including flow rates, pH, and an incubation period are used to control formation of liposomal components for therapeutic applications. The impinging stream may be collected and incubated to prepare a liposomal formulation which encapsulates the active agent. The composition can be quenched with buffer and filtered by tangential flow and diafiltration and other means for finishing as a pharmaceutical composition. An efficiency for delivering a drug cargo is provided. Compositions can include a liposome containing one or more carrier particles, each carrier particle having an active agent and a peptide, wherein the ratio of the mass of the peptide plus the mass of the liposome to the mass of the active agent is less than about 15.
将活性剂水溶液与有机溶剂中含有一种或多种 DILA2 氨基酸化合物或脂质的脂质体形成成分溶液接触,形成撞击流,制备治疗药物脂质体给药工艺和组合物。使用包括流速、pH 值和培养期的方案来控制用于治疗的脂质体成分的形成。可收集并培养撞击流,以制备封装活性剂的脂质体制剂。该组合物可以用缓冲液淬火,并通过切向流、重滤和其他方法进行过滤,最后制成药物组合物。提供了一种高效的药物货物运输方法。组合物可包括含有一种或多种载体颗粒的脂质体,每种载体颗粒具有活性剂和肽,其中肽的质量加上脂质体的质量与活性剂的质量之比小于约 15。