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Updated: Nov 18, 2025

Coherent anti-Stokes Raman Scattering CARS Microscopy Visualizes Pharmaceutical Tablets During Dissolution
Published on: July 4, 2014
Real-time release testing of dissolution based on surrogate models developed by machine learning algorithms using NIR
Dorián László Galata1, Zsófia Könyves1, Brigitta Nagy1
1Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1111 Budapest, Műegyetem rakpart 3.
This study predicts sustained-release tablet dissolution using machine learning, incorporating particle size distribution (PSD) for improved accuracy. Artificial Neural Networks (ANN) demonstrated the most precise predictions, enabling Real-Time Release Testing (RTRT).
Area of Science:
- Pharmaceutical Sciences
- Materials Science
- Computational Chemistry
Background:
- Predicting drug dissolution profiles is crucial for sustained-release tablet quality.
- Critical Material Attributes (CMAs) and process data are key factors influencing drug release.
- Particle Size Distribution (PSD) of matrix polymers significantly impacts drug release kinetics.
Purpose of the Study:
- To develop and compare machine learning models for predicting in vitro dissolution profiles of sustained-release tablets.
- To evaluate the impact of including matrix polymer PSD data on dissolution prediction accuracy.
- To integrate Process Analytical Technology (PAT) data with CMAs for Real-Time Release Testing (RTRT).
Main Methods:
- Spectroscopic measurements (NIR), process data, and CMAs were utilized.
- Three machine learning methods were employed: Artificial Neural Networks (ANN), Support Vector Machines (SVM), and Ensemble of Regression Trees (ERT).
- Models were developed with and without PSD data to assess its significance.
Main Results:
- Matrix polymer PSD was identified as a significant factor influencing drug release.
- Artificial Neural Networks (ANN) provided the most accurate dissolution profile predictions compared to SVM and ERT.
- The inclusion of PSD data improved the predictive performance of the models.
Conclusions:
- Machine learning models, particularly ANN, can accurately predict sustained-release tablet dissolution profiles.
- Integrating PAT data with CMAs, including PSD, enables effective Real-Time Release Testing (RTRT).
- This approach enhances quality control and reduces the need for extensive dissolution testing.
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