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Increased compactibility of acetames after roll compaction.

Theresia Kuntz1, Martin A Schubert, Peter Kleinebudde

  • 1Institute of Pharmaceutics and Biopharmaceutics, Heinrich-Heine-University, Duesseldorf, Germany.

European Journal of Pharmaceutics and Biopharmaceutics : Official Journal of Arbeitsgemeinschaft Fur Pharmazeutische Verfahrenstechnik E.V
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Summary

Roll compaction and dry granulation improved the tableting performance of acetames, a class of drugs for central nervous system disorders. This process increased material compactibility and specific surface area, enhancing drug manufacturing.

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Area of Science:

  • Pharmaceutical Technology
  • Materials Science
  • Chemical Engineering

Background:

  • Continuous granulation, combining roll compaction and milling, is a key pharmaceutical manufacturing technique.
  • Roll compaction significantly influences the tableting performance of active pharmaceutical ingredients (APIs).
  • Acetames are APIs primarily used for treating central nervous system disorders.

Purpose of the Study:

  • To investigate the effect of roll compaction/dry granulation on the compaction behavior of acetames.
  • To compare the compactibility of granulated acetames with directly compressed powders.
  • To understand how roll compaction influences the physical properties of acetames relevant to tableting.

Main Methods:

  • Selected acetames were subjected to roll compaction followed by tableting.
  • Compactibility was assessed by comparing the compression behavior of granules and directly compressed powders.
  • Specific surface areas were measured using nitrogen adsorption analysis.

Main Results:

  • Roll compaction enhanced the compactibility of all investigated acetames, unlike many other materials.
  • The observed increase in compactibility correlated with a rise in the specific surface area of the acetames.
  • Granulation via roll compaction improved the material properties for tablet formation.

Conclusions:

  • Roll compaction is an effective method for improving the tableting performance of acetames.
  • The enhanced compactibility is linked to increased specific surface area induced by the roll compaction process.
  • This study provides valuable insights for optimizing the continuous manufacturing of acetames for neurological treatments.