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Vaccine Production

Vaccine Production

Vaccine production involves a sequence of upstream and downstream processes to generate a safe and effective immunological product. It begins with cultivating microorganisms, such as viruses or bacteria, to obtain antigenic material. For viral vaccines, mammalian host cells are grown in bioreactors and subsequently infected with the target virus. The virus replicates within the host cells, which are lysed to release viral particles. This lysate is then clarified through filtration or...

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Related Experiment Video

Updated: Jun 4, 2026

Aseptic Laboratory Techniques: Volume Transfers with Serological Pipettes and Micropipettors

Aseptic Laboratory Techniques: Volume Transfers with Serological Pipettes and Micropipettors

Published on: May 31, 2012

Aseptic vial filling.

K Bhamra¹, P Harrison, J Phillips

¹Therapeutic Antibody Centre, Oxford, UK.

Methods in Molecular Medicine

|February 22, 2011

Summary

This summary is machine-generated.

Sterile injectable drugs like monoclonal antibodies (mAbs) require aseptic manufacturing. Early clinical trial batches often necessitate manual aseptic filling due to small batch sizes, posing contamination risks.

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Area of Science:

Pharmaceutical Manufacturing
Biologics Processing
Sterile Drug Production

Background:

Injectable drugs ideally undergo terminal sterilization in final containers.
Biologicals, such as monoclonal antibodies (mAbs), cannot be terminally sterilized.
Aseptic manufacturing, including sterile filtration and filling, is crucial for biologics.

Purpose of the Study:

To address the challenges of aseptic filling for small batch sizes common in early clinical trials.
To highlight the critical nature of the final filling step in aseptic processing.
To discuss the risks and procedures associated with manual aseptic filling.

Main Methods:

Aseptic manufacturing processes for monoclonal antibodies (mAbs).
Sterilization by filtration and sterile filling into vials or ampoules.
Manual aseptic filling procedures for small batch sizes (500-1000 vials).
Washing, depyrogenation, and sterilization of vials and closures.
Filling in a strictly controlled environment with subsequent stoppering and sealing.

Main Results:

Automatic filling machines are standard for large-scale production, minimizing contamination risks.
Small batch sizes for early clinical trials are often too small for automated filling.
Manual filling requires meticulous preparation and a highly controlled environment due to open vials.

Conclusions:

Aseptic filling is the most critical step in manufacturing sterile biologics like mAbs.
Manual aseptic filling for small batches presents unique challenges and requires stringent controls to prevent contamination.
Ensuring the sterility of vials, closures, and the filling environment is paramount for product safety.