Development of a Rapid Process Monitoring Method for Dry-Coated Tableting Process by Using Near-Infrared Spectroscopy
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概要
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A nondestructive transmittance near-infrared (NIR) method for detecting off-centered cores in dry-coated (DC) tablets was developed as a monitoring system in the DC tableting process. Caffeine anhydrate was used as a core active pharmaceutical ingredient (API), and DC tablets were made by the direct compression method. NIR spectra were obtained from these intact DC tablets using the transmittance method. The reference assay was performed with HPLC. Calibration models were generated by partial least squares (PLS) regression and principal component regression (PCR) utilizing external validations. Hierarchical cluster analysis (HCA) of the results confirmed that NIR spectroscopy correctly detected off-centered cores in DC tablets. We formulated and used the Centering Index (CI) to evaluate the precision of core alignment and generated an NIR calibration model that could correctly predict this index. The principal component (PC) 1 loading vector of the final calibration model indicated that it could specifically detect the misalignment of tablet cores. The model also had good linearity and accuracy. The CIs of unknown sample tablets predicted by the final calibration model and those calculated through the HPLC analysis were closely parallel with each other. These results demonstrate the validity of the final calibration model and the utility of the transmittance NIR spectroscopic method developed in this study as a monitoring system in DC tableting process.
著者
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Suzuki T
Josai Univ. Saitama Jpn
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Suzuki Tatsuya
Formulation Technology Research Laboratories, Daiichi Sankyo Co., Ltd.
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Ito Masatomo
PAT Committee, Japan Society of Pharmaceutical Machinery and Engineering
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Wakiyama Naoki
Formulation Technology Research Laboratories, Daiichi-Sankyo Co., Ltd.
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Teramoto Hiroshi
OE Division, Nireco Corporation
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Yonemochi Etsuo
PAT Committee, Japan Society of Pharmaceutical Machinery and Engineering
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Terada Katsuhide
PAT Committee, Japan Society of Pharmaceutical Machinery and Engineering
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Wakiyama Naoki
Formulation Technology Research Laboratories Daiichi Sankyo Co. Ltd.
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