Biomarker or biological marker is a naturally occurring molecule, gene or characteristics detected by using molecular biology tools by which pathological or physiological disorder can be identified. A biomarker is predictive if the treatment effect is different for biomarker-negative patients and biomarker-positive patients. Predictive Biomarkers provide guidance in deciding type of therapy to be deployed on the patient in a given disease class and may also guide on the amount of dosage. ... Read more