The Immunoassay Market plays a vital and often unseen role in the pharmaceutical and biotechnology industries. Immunoassays are an indispensable tool in drug development, used throughout the R&D process from discovery to clinical trials. In the early stages of drug discovery, immunoassays are used for high-throughput screening to identify potential drug candidates that can interact with a specific biological target. In pre-clinical and clinical trials, they are used to measure the concentration of a new drug in a patient's blood to determine its pharmacokinetics and pharmacodynamics. This process, known as therapeutic drug monitoring (TDM), is crucial for ensuring the drug is safe and effective. Furthermore, immunoassays are used to detect and quantify biomarkers that can serve as a companion diagnostic, helping to identify which patients are most likely to respond to a new therapy. The precision and sensitivity of immunoassays are essential for these applications, as the concentration of drugs and biomarkers can be very low. The growing complexity of drug development and the rise of personalized medicine ensure that the use of immunoassays in pharmaceutical R&D will only continue to expand. This B2B segment is a key driver of the immunoassay market. For a deeper look at this application and its market impact, a full report is available on the Immunoassay Market.