Development and Evaluation of a Reconstitutable Dry Suspension to Improve the Dissolution and Oral Absorption of Poorly Water-Soluble Celecoxib

Pharmaceutics
Hye-In KimDong-Jin Jang

Abstract

This study aims at developing and evaluating reconstitutable dry suspension (RDS) improved for dissolution rate, oral absorption, and convenience of use of poorly water-soluble celecoxib (CXB). Micro-sized CXB particle was used to manufacture nanosuspension by using bead milling and then RDS was made by spray-drying the nanosuspension with effective resuspension agent, dextrin. The redispersibility, morphology, particle size, crystallinity, stability, dissolution, and pharmacokinetic profile of the RDS were evaluated. RDS was effectively reconstituted into nanoparticles in 775.8 ± 11.6 nm. It was confirmed that CXB particles are reduced into needle-shape ones in size after the bead-milling process, and the description of CXB was the same in the reconstituted suspension. Through the CXB crystallinity study using differential scanning calorimetry (DSC) and XRD analysis, it was identified that CXB has the CXB active pharmaceutical ingredient (API)'s original crystallinity after the bead milling and spray-drying process. In vitro dissolution of RDS was higher than that of CXB powder (93% versus 28% dissolution at 30 min). Furthermore, RDS formulation resulted in 5.7 and 6.3-fold higher area under the curve (AUC∞) and peak concentra...Continue Reading

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Citations

Sep 25, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Dongrui LiangAiping Lu
Nov 15, 2019·Prostaglandins & Other Lipid Mediators·Pratiksha SaxenaPriyank Purohit
Apr 13, 2021·Advanced Drug Delivery Reviews·Dongmei CunMingshi Yang

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Methods Mentioned

BETA
dynamic light scattering
differential
X-ray

Software Mentioned

Pharsight Winnonlin

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