Abstract
This study aimed to develop and evaluate a novel multi-unit tablet that combined a pellet with a sustained-release coating and a tablet with a pulsatile coating for the treatment of circadian rhythm diseases. The model drug, isosorbide-5-mononitrate, was sprayed on microcrystalline cellulose (MCC)-based pellets and coated with Eudragit® NE30D, which served as a sustained-release layer. The coated pellets were compressed with cushion agents (a mixture of MCC PH-200/ MCC KG-802/PC-10 at a ratio of 40:40:20) at a ratio of 4:6 using a single-punch tablet machine. An isolation layer of OpadryII, swellable layer of HPMC E5, and rupturable layer of Surelease® were applied using a conventional pan-coating process. Central-composite design-response surface methodology was used to investigate the influence of these coatings on the square of the difference between release times over a 4 h time period. Drug release studies were carried out on formulated pellets and tablets to investigate the release behaviors, and scanning electron microscopy (SEM) was used to monitor the pellets and tablets and their cross-sectional morphology. The experimental results indicated that this system had a pulsatile dissolution profile that included a lag period of 4 h and a sustained-release time of 4 h. Compared to currently marketed preparations, this tablet may provide better treatment options for circadian rhythm diseases.
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Abbreviations
- 5-ISMN:
-
Isosorbide-5-mononitrate
- MCC:
-
Microcrystalline cellulose
- PC:
-
Pregelatinized starch
- HPMC:
-
Hydroxypropyl methyl cellulose
- h:
-
Hours
- min:
-
Minutes
- rpm:
-
Rotations per minute
- ANOVA:
-
Analysis of variance
- GMS:
-
Glyceryl monostearate
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ACKNOWLEDGMENTS
This study was financially supported by a program supporting scientific research conducted by college graduates in Jangsu Province (No. CXLX12_0313). We would like to thank the Asahi Kasei, ISP, Evonik and Colorcon Corporations for providing the blank MCC pellets, excipients, and coating materials.
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Liu, Q., Gong, Y., Shi, Y. et al. A Novel Multi-Unit Tablet for Treating Circadian Rhythm Diseases. AAPS PharmSciTech 14, 861–869 (2013). https://doi.org/10.1208/s12249-013-9975-8
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DOI: https://doi.org/10.1208/s12249-013-9975-8