Tshweu L, Katata L, Kalombo L, Chiappetta DA, Hocht C, Sosnik A, Swai H. Enhanced oral bioavailability of the antiretroviral efavirenz encapsulated in poly(epsilon-caprolactone) nanoparticles by a spray-drying method.
Nanomedicine (Lond) 2013;
9:1821-33. [PMID:
24364871 DOI:
10.2217/nnm.13.167]
[Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
AIM
To encapsulate efavirenz (EFV) within poly(epsilon-caprolactone) (PCL) nanoparticles (NPs) and compare the oral pharmacokinetics with that of EFV-loaded micelles and pure EFV NPs.
MATERIALS & METHODS
EFV-loaded PCL NPs were produced by a double-emulsion/spray-drying method.
RESULTS
NPs displayed a hydrodynamic diameter of 200-250 nm. The encapsulation efficiency was 86-93% and the mass recovery was above 60%. X-ray diffraction indicated that drug and PCL underwent amorphization during the spray-drying process. Encapsulation within NPs significantly increased the maximum concentration in plasma and the bioavailability.
CONCLUSION
EFV-loaded PCL NPs represent a promising platform to develop scalable pharmaceuticals with improved (bio)pharmaceutic performance. Original submitted 2 May 2013; Revised submitted 4 September 2013.
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