Two Novel Palbociclib-Resorcinol and Palbociclib-Orcinol Cocrystals with Enhanced Solubility and Dissolution Rate

Duan, Chenxin and Liu, Wenwen and Tao, Yunwen and Liang, Feifei and Chen, Yanming and Xiao, Xinyi and Zhang, Guisen and Chen, Yin and Hao, Chao (2021) Two Novel Palbociclib-Resorcinol and Palbociclib-Orcinol Cocrystals with Enhanced Solubility and Dissolution Rate. Pharmaceutics, 14 (1). p. 23. ISSN 1999-4923

[thumbnail of pharmaceutics-14-00023.pdf] Text
pharmaceutics-14-00023.pdf - Published Version

Download (94MB)

Abstract

Palbociclib (PAL) is an effective anti-breast cancer drug, but its use has been partly restricted due to poor bioavailability (resulting from extremely low water solubility) and serious adverse reactions. In this study, two cocrystals of PAL with resorcinol (RES) or orcinol (ORC) were prepared by evaporation crystallization to enhance their solubility. The cocrystals were characterized by single crystal X-ray diffraction, Hirshfeld surface analysis, powder X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, Fourier transform infrared and scanning electron microscopy. The intrinsic dissolution rates of the PAL cocrystals were determined in three different dissolution media (pH 1.0, pH 4.5 and pH 6.8), and both cocrystals showed improved dissolution rates at pH 1.0 and pH 6.8 in comparison to the parent drug. In addition, the cocrystals increased the solubility of PAL at pH 6.8 by 2–3 times and showed good stabilities in both the accelerated stability testing and stress testing. The PAL-RES cocrystal also exhibited an improved relative bioavailability (1.24 times) than PAL in vivo pharmacokinetics in rats. Moreover, the in vitro cytotoxicity assay of PAL-RES showed an increased IC50 value for normal cells, suggesting a better biosafety profile than PAL. Co-crystallization may represent a promising strategy for improving the physicochemical properties of PAL with better pharmacokinetics

Item Type: Article
Uncontrolled Keywords: palbociclib; cocrystal; Hirshfeld surface; solubility; dissolution rate; physical stability
Subjects: Institute Archives > Medical Science
Depositing User: Managing Editor
Date Deposited: 11 Nov 2022 04:38
Last Modified: 08 Sep 2023 04:18
URI: http://eprint.subtopublish.com/id/eprint/90

Actions (login required)

View Item
View Item