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Formation of Dispersible Taohong Siwu Tablets
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Pediatric Mini-Tablets: Predicting the Hidden Risk of Fill Errors.

Brandon G Gerberich1, Grace A Okoh1, James C DiNunzio1

  • 1Oral Formulation Sciences, Merck & Co., Inc., Kenilworth, NJ 07065, USA.

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Summary
This summary is machine-generated.

Pediatric mini-tablets in sachets pose content uniformity (CU) risks due to small size and fill errors. Increasing mini-tablet count per sachet significantly reduces batch failure probability, with 5-10 tablets being optimal.

Keywords:
content uniformitydose uniformityfill countfill errorsmini-tabletsachet

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Area of Science:

  • Pharmaceutical Sciences
  • Drug Delivery Systems
  • Pediatric Formulations

Background:

  • Compressed mini-tablets in sachets are common pediatric oral dosage forms.
  • Their small size (≤2.5 mm) necessitates strict control over weight and potency variation for blend uniformity.
  • Sachet fill count errors are difficult to detect via weight checks, impacting dose accuracy.

Purpose of the Study:

  • To quantify the probability of failing content uniformity (CU) specifications for pediatric mini-tablet sachets using a computational model.
  • To identify key factors influencing CU batch failure risk.
  • To provide a tool for product developers to manage risks associated with mini-tablet formulation and filling.

Main Methods:

  • Utilized a Monte Carlo computational model to simulate CU failure probabilities.
  • Modeled failure risk based on sachet fill count, mini-tablet weight and potency distributions, and fill error frequency.
  • Analyzed a representative product scenario with specific relative standard deviations (RSD) and fill error rates.

Main Results:

  • A product with 1-4 mini-tablets per sachet and 0.1% fill error probability could face CU batch failure rates as high as 8.23%.
  • Increasing the fill count to 5-10 mini-tablets per sachet reduced failure probability to 0.283%.
  • Fill counts below five mini-tablets per sachet are generally associated with higher CU failure risks.

Conclusions:

  • Product developers can use the model to set appropriate fill counts and fill error tolerances.
  • Minimizing CU failure risk is crucial for batch release and regulatory compliance.
  • Avoiding fill counts below five mini-tablets per sachet is recommended to enhance pediatric product quality and safety.