Guanru Wang, Yaru Xie, Xindi Qian, Xinyue Zhang, Yanqiang Shan, Minghui Zhang, Jie Li, Zhiwen Zhang, Yaping Li
Drug development and industrial pharmacy 2022 MarThe poor water solubility and inadequate oral bioavailability of gefitinib (Gef) remain a critical issue to achieve the therapeutic outcomes. Herein, we designed a poly(maleic anhydride-alt-1-octadecene) (PMA/C18) based lipid nanovehicle (PLN) to improve the intestinal absorption and oral bioavailability of poorly water-soluble Gef. PLN was nanometer-sized particles, and Gef was dispersed in the PLN formulation as amorphous or molecular state. At 4 h of oral administration, the tissue concentration of Gef in duodenum, jejunum, and ileum was profoundly enhanced 3.37-, 8.94-, and 8.09-fold by PLN when comparing to the counterpart lipid nanovehicle. Moreover, the oral bioavailability of Gef was significantly enhanced 2.48-fold by the PLN formulation when comparing to the free drug suspension. Therefore, this study provides an encouraging bioadhesive delivery platform to improve the oral delivery of poorly water-soluble drugs.
Guanru Wang, Yaru Xie, Xindi Qian, Xinyue Zhang, Yanqiang Shan, Minghui Zhang, Jie Li, Zhiwen Zhang, Yaping Li. Poly(maleic anhydride-alt-1-octadecene)-based bioadhesive nanovehicles improve oral bioavailability of poor water-soluble gefitinib. Drug development and industrial pharmacy. 2022 Mar;48(3):109-116
PMID: 35786162
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