Biomarker development involves the identification and validation of specific biological molecules or characteristics that can be used to indicate the presence, progression, or severity of a disease, as well as the response to therapy. These biomarkers can include proteins, genes, metabolites, or other molecules that are measurable in biological samples such as blood, urine, or tissue. The goal of biomarker development is to improve disease diagnosis, prognosis, and treatment by providing more accurate and personalized information for patients. Bi omakers can also be used to track the effects of experimental drugs or therapies in clinical trials, aiding in the development of new treatments. Overall, biomarker development plays a crucial role in advancing personalized and precision medicine approaches to healthcare.