Abstract
A quantitative, model-based risk assessment process was evaluated using Bayesian parameter estimation to determine the posterior distribution of the probability of a model tablet formulation’s (gabapentin) ability to meet end-of-expiry stability criteria-based manufacturing controls. Experimental data was obtained from an FDA-supported, multi-year project that involved researchers at nine universities working collaboratively with industrial and governmental scientists under the leadership of the National Institute for Pharmaceutical Technology and Education (NITPE). The risk assessment process involved the development of a design space manufacturing model and shelf life stability model that shared stability-related critical quality attributes (CQAs). Monte Carlo simulations of the design space and shelf life models that uses model parameter uncertainty to estimate the probability of shelf life failure as a function of manufacturing control. The resultant linked design space and shelf life stability models were tested by comparing model predicted and observed long-term stability data generated under a variety of pilot scale production conditions.
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Acknowledgements
We thank our collaborators—Brian M. Zacour, James K. Drennen III, Carl A. Anderson (Duquesne University), and Ting Wang and Stephen W. Hoag (University of Maryland)—for providing blend and tablet samples. We also thank our additional collaborators and co-investigators on the FDA-sponsored contract for their useful comments and discussions of our work. These collaborators include James Litster, Defne Kayrak-Talay, Linas Mockus, and Gintaras Reklaitis (Purdue University); Eric Munson and Elodie Dempah (University of Kentucky); Fernando Muzzio and Alberto Cuitino (Rutgers University); Raj Suryanarayanan (University of Minnesota); Hamid Arastoopour (Illinois Institute of Technology); Robin Bogner (University of Connecticut); Ira Buckner, Benoit Igne, and Peter Wildfong (Duquesne University); Mansoor Khan and Abhay Gupta (FDA); and Pratak Ngeacharernkul, Hong-Shian Huang, and Salil Desai (The University of Iowa). We apologize if we have inadvertently overlooked any of our colleagues who contributed to this project but are not listed above.
Funding
We are grateful to the US Food and Drug Administration (FDA) for providing funds for this research. This study was funded by the FDA-sponsored contract “Development of Quality by Design (QbD) Guidance Elements on Design Specifications across Scales with Stability Considerations” (contract number HHSF223200819929C).
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Guest Editors: Ajaz S. Hussain, Kenneth Morris, and Vadim J. Gurvich
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Stamatis, S.D., Kirsch, L.E. Using Manufacturing Design Space Concepts for Stability Risk Assessment—Gabapentin NIPTE/FDA Case Study. AAPS PharmSciTech 19, 2801–2807 (2018). https://doi.org/10.1208/s12249-018-1141-x
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DOI: https://doi.org/10.1208/s12249-018-1141-x