Abstract
Beta-casein (bCN) micelles were developed as a platform for improved oral bioavailability (BA) of poorly water-soluble drugs. Here we demonstrate a proof-of-concept using the NSAID celecoxib (Cx) loaded into bCN micelles (Cx/bCN). In a crossover pharmacokinetic (PK) study in pigs (n=4), dosed intraduodenally with either the commercial Cx formulation Celebra® or Cx/bCN, the Cmax obtained after administration of Cx/bCN was 2.3-fold higher and the Tmax was 1.57-fold faster, leading to a 1.76-fold increase in the BA of Cx, compared to the Celebra® formulation. It is suggested that this BA enhancement was caused by improvement of Cx solubility in intestinal fluids by bCN micelles, which maintained their Cx cargo in an amorphous state.
Original language | English |
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Pages (from-to) | 217-226 |
Number of pages | 10 |
Journal | European Journal of Nanomedicine |
Volume | 6 |
Issue number | 4 |
DOIs | |
State | Published - 1 Dec 2014 |
Keywords
- beta-casein
- bioavailability
- celecoxib
- micelles
All Science Journal Classification (ASJC) codes
- Bioengineering
- Medicine (miscellaneous)
- Biomedical Engineering
- Physical and Theoretical Chemistry