Abstract
The research aims the development and optimization of capecitabine loaded interpenetrating polymeric network by ionotropic gelation method using polymers locust bean gum and sodium alginate by QbD approach. FMEA was performed to recognize the risks influencing CQAs. BBD was applied to study the effect of factors (polymer ratio, amount of cross-linker and curing time) on responses (particle size, % drug entrapment and % drug release). Polynomial equations and 3-D graphs were plotted to relate between factors and responses. The results of the optimized batch viz. particle size (457.92 ± 1.6 μm), % drug entrapment (74.11 ± 3.1%) and % drug release (90.23 ± 2.1%) were close to the predicted values generated by Minitab® 17. Characterization techniques SEM, EDX, FTIR, DSC and XRD were also performed for the optimized batch. To study the water transport inside IPN microbeads, swelling study was done. In vitro drug release of optimized batch showed controlled drug release for 12 h. Pharmacokinetic study carried out following oral administration in Albino Wistar rats exhibited that optimized microbeads had better PK parameters than free drug. In vitro cytotoxicity against HT-29 cells revealed significant reduction of the cell growth when treated with optimized formulation indicating IPN microbeads as effective dosage form for treating colon cancer.
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