Abstract
The aim of the presented study was to develop PEGylated liposomes of Temozolomide (TMZ) that provide optimum drug concentration at tumor site. Reverse phase evaporation (REV) method was used to prepare TMZ-loaded PEGylated liposomes. Formulation was optimized by using design expert software by 32 factorial design. The physicochemical properties including size, morphology, entrapment efficiency, drug loading, etc. of formulated liposomes were evaluated. Finally, the optimized formulation was selected for in vitro drug release and stability study. In vivo pharmacokinetic study in rats showed that TMZ-loaded PEGylated liposomes leads to 1.6-fold increase in AUCTotal in blood and 4.2-fold increase in brain as compared to free drug solution. This formulated PEGylated liposomes offers a promising approach for treatment of Glioblastoma Multiforme.
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