Abstract
Purpose
The purpose of the study was to develop a model to predict the critical quality attribute (CQA) of tablets during continuous and batch manufacturing using only critical material attributes (CMAs).
Methods
Experiments were performed using ethenzamide as the active pharmaceutical ingredient processed with batch and continuous high-shear granulators. The disintegration time of tablets was defined as the CQA, and the particle-size distribution of granules and tablet hardness were defined as the CMAs. We first investigated the influence of granulation conditions on particle-size distribution during batch and continuous granulation. We then proceeded to construct the CQA estimation model by producing tables using batch and continuous granulation.
Results
The results indicated the similarity of the granulation mechanisms, as observed by the bimodality of the distributions and the significant causal factors. Principal component analysis revealed that the CQA was influenced strongly by the particle-size distribution and that the CMA–CQA correlations were similar for both processes. Finally, a model based on partial least-squares regression could be developed that could reasonably estimate the CQA using CMAs without involving any process parameters.
Conclusion
This approach of using process-independent CQA prediction could enable flexible switching between batch and continuous manufacturing during a product life cycle, thus offering new possibilities for efficient life cycle management.
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Acknowledgments
The authors acknowledge Mr. Kazuhiro Kotaka at Powrex Corporation for conducting the experiments in batch and continuous high-shear granulation. The authors also thank the members of the Focus Group of the Academy of Pharmaceutical Science and Technology for providing great support to this research and also Mr. Kensaku Matsunami at the University of Tokyo for assistance with the literature survey.
Funding
The research was partly funded by Powrex Corporation.
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This work presents a model that can predict a critical quality attribute (CQA) of tablets prepared by both batch and continuous manufacturing based only on their critical material attributes (CMAs), towards flexible technology switching.
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Arai, H., Nagato, T., Koide, T. et al. Tablet Quality-Prediction Model Using Quality Material Attributes: Toward Flexible Switching Between Batch and Continuous Granulation. J Pharm Innov 16, 588–602 (2021). https://doi.org/10.1007/s12247-020-09466-w
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DOI: https://doi.org/10.1007/s12247-020-09466-w