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Xiaowei Dong

Xiaowei Dong

University of North Texas Health Science Center, USA

Title: Novel in situ self-assembly nanoparticles for pediatric drug formulations

Biography

Biography: Xiaowei Dong

Abstract

Over 65% of current medications do not have commercially available pediatric formulations. Lack of pediatric formulations has led to the need to break tablets or open capsules for administration, risking reduced efficacy and adverse eff ects because of inaccurate dosing. Because of challenges and limitations on liquid dosage forms, flexible oral solid dosage forms are preferred for pediatric formulations. Recently, we discovered a novel platform nanotechnology to manufacture solid granules that produce in situ self-assembly nanoparticles (ISNPs) when introduced to water or other fluids (e.g. gastrointestinal fluid). Th e current ISNPs are lipid-based nanoparticles. We successfully applied the ISNP nanotechnology for ritonavir, lopinavir, a fixed-dose combination of lopinavir/ritonavir and a fixed-dose combination of four drugs. Drug-loaded ISNP granules achieved over 15% of drug loading, acceptable stability at room temperature and over 90% of drug entrapment efficiency. According to the evaluation using an electronic-tongue and dissolution, drug-loaded ISNP granules had similar taste to the placebo granules. Moreover, the pharmacokinetic studies showed that the ISNP granules improved drug bioavailability and biodistribution. Th e overall results demonstrated that the novel ISNP nanotechnology is a very promising platform to manufacture palatable, heat stable and flexible pediatric granules.