Feedforward and Feedback Control of a Pharmaceutical Coating Process View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2019-05

AUTHORS

Yuxiang Zhao, James K. Drennen, Shikhar Mohan, Suyang Wu, Carl A. Anderson

ABSTRACT

This work demonstrates the use of a combination of feedforward and feedback loops to control the controlled release coating of theophylline granules. Feedforward models are based on the size distribution of incoming granules and are used to set values for the airflow in the fluid bed processor and the target coat weight to be applied to the granules. The target coat weight of the granules is controlled by a feedback loop using NIR spectroscopy to monitor the progress of the process. By combining feedforward and feedback loops, significant variation in the size distributions and ambient conditions were accommodated in the fluid bed coating of the granules and a desired dissolution profile was achieved. The feedforward component of the control system was specifically tested by comparing the performance of the control system with and without this element by Monte Carlo simulation. More... »

PAGES

157

Journal

TITLE

AAPS PharmSciTech

ISSUE

4

VOLUME

20

Author Affiliations

Identifiers

URI

http://scigraph.springernature.com/pub.10.1208/s12249-019-1348-5

DOI

http://dx.doi.org/10.1208/s12249-019-1348-5

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1113173533

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30937727


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