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Strategy for adventitious agent assays

J S Robertson1

  • 1National Institute for Biological Standards and Control, Potters Bar, Herts, UK.

Developments in Biological Standardization
|January 1, 1996
PubMed
Summary
This summary is machine-generated.

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Adventitious virus screening requires careful planning regarding which viruses to test, the appropriate assays, and optimal testing stages. This strategy ensures product safety by addressing potential contamination throughout the manufacturing process.

Area of Science:

  • Biotechnology
  • Virology
  • Pharmaceutical Manufacturing

Background:

  • Adventitious virus contamination poses a significant risk to the safety and efficacy of biological products.
  • Establishing a robust virus screening strategy is critical for regulatory compliance and patient safety.

Purpose of the Study:

  • To outline key considerations for developing an effective adventitious virus screening strategy.
  • To address critical questions regarding virus selection, testing methodologies, and implementation timing in biomanufacturing.

Main Methods:

  • Consideration of virus origin based on cell species and the overall manufacturing supply chain.
  • Selection of appropriate viral assays, including broad-spectrum and specific virus detection methods.
  • Strategic placement of virus testing at critical manufacturing stages: master cell bank, working cell bank, and end-of-production.

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Main Results:

  • Virus testing strategies must be tailored to the specific production system and potential contamination sources.
  • A combination of general and specific virus detection assays provides comprehensive screening.
  • Testing at master cell bank, working cell bank, and end-of-production stages is essential for risk mitigation.

Conclusions:

  • A well-defined adventitious virus screening strategy is paramount for ensuring the safety of biological products.
  • The strategy should encompass the 'what,' 'how,' and 'when' of virus testing throughout the manufacturing process.