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The acceptance criteria for dissolution profile data are anchored in Q values, representing the percentage of drug dissolved within a specified period. This assessment unfolds in three stages:First Stage: The test passes if all six drug dosage units are equal to or greater than Q plus 5%; otherwise, the sample proceeds to the second stage.Second Stage: The average of twelve units must be equal to or greater than Q, with no unit falling below Q - 15% to pass; if not, it progresses to the final...
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Quantitative disintegration profiling using real-time erosion tracking during the standard USP〈701〉 test.

Jongmin Lee1, J Axel Zeitler1

  • 1Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK.

International Journal of Pharmaceutics
|February 23, 2026
PubMed
Summary
This summary is machine-generated.

This study introduces disintegration profiles, a new method to analyze tablet breakdown beyond simple disintegration time (DT). These profiles reveal formulation differences and support advanced dissolution modeling for better drug development.

Keywords:
Disintegration kineticsDisintegration profilingErosion-controlled kineticsMechanistic modelPredictive modellingProcess Analytical Technology (PAT)Tablet disintegration

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Area of Science:

  • Pharmaceutical Sciences
  • Materials Science
  • Chemical Engineering

Background:

  • Traditional disintegration time (DT) offers limited insight into tablet breakdown mechanisms.
  • Current methods lack detailed physical characterization of drug product disintegration.

Purpose of the Study:

  • To develop and validate a novel method for characterizing tablet disintegration using dynamic gap height monitoring.
  • To differentiate drug products based on formulation-dependent disintegration behavior.
  • To link disintegration profiles to fundamental kinetic parameters for improved dissolution modeling.

Main Methods:

  • Utilized a non-contact distance sensor to monitor gap height dynamics in the USP <701> disintegration apparatus.
  • Generated disintegration profiles for Simvastatin 20mg tablets from six different brands.
  • Analyzed the linear propagation of the erosion interface and calculated erosion velocity.

Main Results:

  • Disintegration profiles successfully discriminated between different Simvastatin tablet brands.
  • Observed linear erosion kinetics with a constant interface propagation velocity.
  • Established a correlation between erosion velocity and surface area generation rate.

Conclusions:

  • Disintegration profiling provides a mechanical fingerprint of dosage forms, offering superior insight compared to DT.
  • The method supports the interpretation of disintegration as linear erosion-controlled kinetics.
  • This approach can enhance dissolution models and serve as a Process Analytical Technology (PAT) tool for formulation development and quality control.