Non-destructive determination of disintegration time and dissolution in immediate release tablets by terahertz transmission measurements
| Autor: | Daniel J. Goodwin, J. Axel Zeitler, Sander van den Ban, Johanna Sauerwein, Daniel Markl |
|---|---|
| Přispěvatelé: | Markl, Daniel [0000-0003-0411-733X], Zeitler, Axel [0000-0002-4958-0582], Apollo - University of Cambridge Repository |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
porosity Terahertz radiation Analytical chemistry Pharmaceutical Science dissolution 02 engineering and technology 030226 pharmacology & pharmacy RS terahertz 03 medical and health sciences Granulation Terahertz Imaging 0302 clinical medicine granulation Non destructive Pharmacology (medical) Immediate release Composite material Dissolution disintegration time Pharmacology Active ingredient density refractive index Organic Chemistry 021001 nanoscience & nanotechnology hardness Drug Liberation Pharmaceutical Preparations Solubility Transmission (telecommunications) Molecular Medicine 0210 nano-technology Critical quality attributes Tablets Research Paper Biotechnology |
| Zdroj: | Pharmaceutical Research |
| ISSN: | 0724-8741 |
| Popis: | Purpose The aim of this study was to establish the suitability of terahertz (THz) transmission measurements to accurately measure and predict the critical quality attributes of disintegration time and the amount of active pharmaceutical ingredient (API) dissolved after 15, 20 and 25 min for commercial tablets processed at production scale. Methods Samples of 18 batches of biconvex tablets from a production-scale design of experiments study into exploring the design space of a commercial tablet manufacturing process were used. The tablet production involved the process steps of high-shear wet granulation, fluid-bed drying and subsequent compaction. The 18 batches were produced using a 4 factor split plot design to study the effects of process changes on the disintegration time. Non-destructive and contactless terahertz transmission measurements of the whole tablets without prior sample preparation were performed to measure the effective refractive index and absorption coefficient of 6 tablets per batch. Results The disintegration time (R 2 = 0.86) and API dissolved after 15 min (R 2 = 0.96) linearly correlates with the effective refractive index, n eff, measured at terahertz frequencies. In contrast, no such correlation could be established from conventional hardness measurements. The magnitude of n eff represents the optical density of the sample and thus it reflects both changes in tablet porosity as well as granule density. For the absorption coefficient, α eff, we observed a better correlation with dissolution after 20 min (R 2 = 0.96) and a weaker correlation with disintegration (R 2 = 0.83) compared to n eff. Conclusion The measurements of n eff and α eff provide promising predictors for the disintegration and dissolution time of tablets. The high penetration power of terahertz radiation makes it possible to sample a significant volume proportion of a tablet without any prior sample preparation. Together with the short measurement time (seconds), the potential to measure content uniformity and the fact that the method requires no chemometric models this technology shows clear promise to be established as a process analyser to non-destructively predict critical quality attributes of tablets. Electronic supplementary material The online version of this article (doi:10.1007/s11095-017-2108-4) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink