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Microbial Control and Monitoring Strategies for Cleanroom Environments and Cellular Therapies
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[Problems in microbial safety of advanced therapy medicinal products. Squaring the circle]

T Montag-Lessing1, M Störmer, U Schurig

  • 1Fachgebiet Mikrobielle Sicherheit, Paul-Ehrlich-Institut, Paul-Ehrlich-Str. 51-59, 63225, Langen. month@pei.de

Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
|December 17, 2009
PubMed

Insights

Ensuring microbial safety for advanced therapy medicinal products (ATMPs) like cell therapeutics presents unique challenges. This paper highlights limitations in current sterility and pyrogen testing and proposes novel solutions for these critical pharmaceutical manufacturing issues.

Area of Science:

  • Pharmaceutical manufacturing
  • Microbiology
  • Cell therapy

Context:

  • Parenteral drug sterility is well-established, but microbial safety for advanced therapy medicinal products (ATMPs), particularly cell therapeutics, remains a significant challenge.
  • Traditional sterilization and microbial testing methods are often incompatible with the unique properties and short shelf-life of ATMPs.
  • Source material sterility cannot be guaranteed, and final product sterility is difficult to ensure.

Purpose:

  • To identify and discuss the limitations of current microbial safety and pyrogenicity testing for ATMPs.
  • To explore potential strategies and propose novel solutions for overcoming these challenges in cell therapeutic manufacturing.

Summary:

  • Current sterility assurance for parenteral drugs contrasts sharply with the difficulties in ensuring microbial safety for cell therapeutics.
  • Established sterility testing methods are often too slow for short-shelf-life ATMPs, and sample-based testing may not reflect whole-product safety.
  • Conventional pyrogen testing methods are frequently unsuitable for ATMPs, necessitating new approaches.

Impact:

  • Addressing microbial safety gaps is crucial for the clinical application and regulatory approval of cell therapeutics.
  • Development of novel testing and manufacturing strategies will enhance the safety and reliability of advanced therapies.
  • Improved microbial control will build confidence among manufacturers, regulators, and physicians regarding cell-based medicinal products.

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