CD Formulation, as a leading company in life sciences research, specializes in providing high-quality testing services for the biopharmaceutical sector. By utilizing advanced technologies and methodologies, we precisely assess the presence of microorganisms in drugs and related materials. This process not only ensures that each product meets stringent safety standards before market release but also assists our clients in continually complying with industry regulations.
The background for conducting bioburden testing on nucleic acid drugs lies in ensuring safety and efficacy during production and usage. Bioburden testing detects the total amount of microorganisms present on drugs and packaging surfaces, playing a crucial role in sterilization procedures. It helps identify issues during production that might affect sterilization effectiveness and provides scientific evidence for setting appropriate sterilization dosages. Furthermore, this test is part of routine monitoring to ensure that pharmaceutical and biopharmaceutical products consistently meet strict safety standards and quality requirements, mitigating the risk of harmful microorganisms to protect the final product's integrity and consumer safety.
Methods | Descriptions |
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Ultrasonic Processing Method | Through high-frequency vibrations from ultrasound, we effectively disrupt cell structures in samples to release microorganisms. This method is suitable for various complex matrices, ensuring efficiency and completeness in the extraction process. |
Mechanical Shaking Method | This method uses mechanical devices or manual operation to separate microorganisms from substances through oscillation and shaking. The process is gentle, adaptable, and can handle a variety of sample types. |
Vortexing Method | The vortex method employs centrifugal force generated by strong rotation to separate microorganisms from sample matrices. It's fast and suitable for processing large sample batches, enhancing laboratory testing efficiency. |
Stomach Washing Method | Stomach washing technology is mainly applied to hard-to-extract samples by mimicking gastric peristalsis to release microorganisms. It ensures maximum microbial recovery, suitable for analyses requiring high extraction efficiency. |
Items | Descriptions |
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Membrane Filtration Method | For samples containing antimicrobial components, the membrane filtration method is the best choice. Samples are first filtered through a 0.45-micron pore membrane, with vacuum assistance to speed up the process. After filtration, the membrane is transferred to a medium for incubation, with bacterial detection at 30-35°C and fungal detection at 20-25°C for no less than five days. Finally, microorganisms are counted to precisely evaluate contamination levels, avoiding false positives from cross-contamination. |
Direct Inoculation Method | We provide direct inoculation services, including the pour plate and spread plate methods. The pour plate method, with its higher theoretical precision, involves mixing the test sample with a medium until solidified in a petri dish. The spread plate method involves applying samples directly to the surface of solidified media. After samples are introduced into the culture system, they are incubated for a specific period for precise microorganism counting. |
Most Probable Number (MPN) Method | The MPN method is suited for determining the approximate concentration of bacteria in samples through gradual dilution and microbial presence testing. However, multiple repetitions are needed for accurate confidence intervals, and this method isn't suitable for fungal quantification. |
Fig.1 Flow chart of bioburden testing for nucleic acid drugs. (CD Formulation)
Place nucleic acid drug samples in specialized test containers and add a certain amount of sterile rinse solution, usually a buffered aqueous solution, to enhance microbial suspension efficiency.
Choose appropriate agitation methods based on the drug material's characteristics to remove surface microorganisms.
After extraction, collect the extract, preparing it for separate culture to independently detect different types of microbial contamination.
Extracts are usually processed through filtration or pour plate methods to cultivate the extracted microorganisms. The results are then analyzed in detail and microorganisms are counted.
Analyze the obtained data to evaluate the bioburden status of nucleic acid drugs and provide detailed test reports.
Technology: Analysis of biotech-derived products utilizing bioburden test platforms
Journal: European journal of pharmaceutics and biopharmaceutics
IF: 4.4
Published: 2024
Results:
This paper emphasizes a holistic approach to managing bioburden risk in thermolabile parenteral drugs that can't undergo terminal sterilization. Key findings highlight the need for control and monitoring before filter sterilization, proposing a bioburden limit as an action threshold. It suggests integrated risk assessments to address pre- and post-filtration risks, advocating a two-tier monitoring system with adjustable levels based on product history. The study underscores the importance of evaluating bacterial by-products' impact on safety and recommends smaller sample volumes for highly controlled manufacturing processes. Overall, bioburden testing serves as a verification tool for the effectiveness of microbial control measures.
Fig.2 Performance characteristics of bioburden testing. (Bechtold-Peters K, et al., 2024)
CD Formulation is committed to supporting clients in achieving excellence in product development and production through comprehensive and reliable bioburden testing. We adhere to strict regulatory guidelines to minimize microbial risks. If you wish to learn more about our bioburden analysis services for nucleic acid drugs, please feel free to contact us.
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