Bio-assay Development

A bio-assay is a biochemical analytical technique used to compare the potency of a sample drug molecule to that of a standard molecule. This comparison can be carried out in vivo or in vitro, such as using cell or tissue cultures. One of the primary advantages of bioassays is their ability to estimate both the concentration and potency of a sample. This is crucial for testing biopharmaceutical products and is often required for regulatory submissions.

For new or chemically undefined substances, bioassays play a key role in investigating side-effect profiles, including toxicity, and measuring pharmacological activity. The Mechanism of Action (MoA) of a drug influences the specific bioassay methodologies used. Bioassays are typically tailored to each therapeutic, designed to accurately detect the biological activity under study. Factors such as the type of cells used, bioassay design, and adherence to good laboratory practices (GLP) all impact the performance of bioassays, ensuring accuracy, robustness, and reproducibility.