Process analytical technology case study: Part II. Development and validation of quantitative near-infrared calibrations in support of a process analytical technology application for real-time release |
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Authors: | Robert P. Cogdill Carl A. Anderson Miriam Delgado Robert Chisholm Raymond Bolton Thorsten Herkert Ali M. Afnan James K. Drennen |
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Affiliation: | (1) Duquesne University Center for Pharmaceutical Technology, 16066 Pittsburgh, PA;(2) AstraZeneca, SK10 4TF Macclesfield, Cheshire, UK;(3) AstraZeneca GmbH, 68723 Plankstadt, Germany;(4) Center for Drug Evaluation and Research, Office of Pharmaceutical Science, US Food and Drug Administration, HFD-003 Rockville, MD, 20852;(5) School of Pharmacy, Duquesne University, 15282 Pittsburgh, PA |
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Abstract: | This article is the second of a series of articles detailing the development of near-infrared (NIR) methods for solid dosage-form analysis. Experiments were conducted at the Duquesne University Center for Pharmaceutical Technology to demonstrate a method for developing and validating NIR models for the analysis of active pharmaceutical ingredient (API) content and hardness of a solid dosage form. Robustness and cross-validation testing were used to optimize the API content and hardness models. For the API content calibration, the optimal model was determined as multiplicative scatter correction with Savitsky-Golay first-derivative preprocessing followed by partial least-squares (PLS) regression including 4 latent variables. API content calibration achieved root mean squared error (RMSE) and root mean square error of cross validation (RMSECV) of 1.48 and 1.80 mg, respectively. PLS regression and baseline-fit calibration models were compared for the prediction of tablet hardness. Based on robustness testing, PLS regression was selected for the final hardness model, with RMSE and RMSECV of 8.1 and 8.8 N, respectively. Validation testing indicated that API content and hardness of production-scale tablets is predicted with root mean square error of prediction of 1.04 mg and 8.5 N, respectively. Explicit robustness testing for high-flux noise and wavelength uncertainty demonstrated the robustness of the API concentration calibration model with respect to normal instrument operating conditions. Published: October 6, 2005 The views presented in this article do not necessarily reflect those of the Food and Drug Administration. |
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Keywords: | PAT process analytical technology near-infrared spectroscopy chemometrics pharmaceutical analysis |
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