Impact of Raw Material Properties on Solid Dosage Form Processes

A special issue of Pharmaceutics (ISSN 1999-4923). This special issue belongs to the section "Physical Pharmacy and Formulation".

Deadline for manuscript submissions: 5 July 2024 | Viewed by 1466

Special Issue Editors


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Guest Editor
Laboratory of Pharmaceutical Technology, Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg, B-9000 Ghent, Belgium
Interests: pharmaceutical technology; continuous manufacturing; 3D printing; additive manufacturing; pellets; twin-screw granulation; direct compression; material science
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Guest Editor
UCB Pharma, Chemin du Foriest 1, 1420 Braine l’Alleud, Belgium
Interests: pharmaceutical technology; continuous manufacturing; twin-screw granulation; material science; modelling

Special Issue Information

Dear Colleagues,

The interlink between raw material properties and drug product performance has been a growing research topic in the last few years. Advances in the definition of a manufacturing classification system allowed rationalizing drug product process selection based on raw material properties. Such initiatives, however, rely on powder characterizations predictive of the behaviour of the powder during manufacturing at the pilot or commercial scale. It also implies that the raw material properties driving the process are well identified and that the desired ranges have been defined. Hence, it is key to understand the impact of the raw materials’ properties for each unit of operation as well as the integrated manufacturing process. Based on this knowledge, it becomes possible to design raw materials with the desired properties in order to make it amenable for a preferred process (e.g., a greener process) to improve the drug product process robustness and the drug product quality. Finally, there will always be a natural variability in the raw materials’ physical properties. New approaches are being developed to understand batch-to-batch variability and define critical material attributes for a specific product.

This Special Issue aims to approach this complex topic in a transversal way, allowing a comprehensible view of the current landscape.

Prof. Dr. Valérie Vanhoorne
Dr. Fanny Stauffer
Guest Editors

Manuscript Submission Information

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Keywords

  • pharmaceutical technology
  • material science
  • powder
  • drug product process development
  • quality-by-design

Published Papers (1 paper)

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22 pages, 5427 KiB  
Article
Understanding the Interaction of Thermal, Rheological, and Mechanical Parameters Critical for the Processability of Polyvinyl Alcohol-Based Systems during Hot Melt Extrusion
by Florian Hess, Thomas Kipping, Werner Weitschies and Julius Krause
Pharmaceutics 2024, 16(4), 472; https://doi.org/10.3390/pharmaceutics16040472 - 28 Mar 2024
Viewed by 887
Abstract
Hot melt extrusion (HME) is a common manufacturing process used in the pharmaceutical industry to improve the solubility of poorly soluble active pharmaceutical ingredients (API). The goal is to create an amorphous solid dispersion (ASD) where the amorphous form of the API is [...] Read more.
Hot melt extrusion (HME) is a common manufacturing process used in the pharmaceutical industry to improve the solubility of poorly soluble active pharmaceutical ingredients (API). The goal is to create an amorphous solid dispersion (ASD) where the amorphous form of the API is stabilized within a polymer matrix. Traditionally, the development of pharmaceutically approved polymers has focused on requirements such as thermal properties, solubility, drug–polymer interactions, and biocompatibility. The mechanical properties of the material have often been neglected in the design of new polymers. However, new downstream methods require more flexible polymers or suitable plasticizer polymer combinations. In this study, two grades of the polymer polyvinyl alcohol (PVA), which is already established for HME, are investigated in terms of their mechanical, rheological, and thermal properties. The mechanical properties of the extruded filaments were tested by the three-point bending test. The rheological behavior was analyzed by oscillating plate measurements. Thermal analysis was performed by differential scanning calorimetry (DSC). In addition, the solid and liquid plasticizers mannitol, sorbitol, triacetin, triethyl citrate, polyethylene glycol, and glycerol were evaluated for use with PVA and their impact on the polymer properties was elaborated. Finally, the effects of the plasticizers are compared to each other, and the correlations are analyzed statistically using principal component analysis (PCA). Thereby, a clear ranking of the plasticizer effects was established, and a deeper understanding of the polymer–plasticizer interactions was created. Full article
(This article belongs to the Special Issue Impact of Raw Material Properties on Solid Dosage Form Processes)
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