Why is there such a difference in how patients individually respond to cancer drugs?
A large percentage of patients are poor or non-responders to almost all commonly prescribed drugs, including drugs used in breast cancer therapy. This is due to genetic variations found in all individuals. We are 99.9% the same but that .1% difference is responsible for your uniqueness; it also determines how you react to and metabolize any particular drug. Identifying and measuring the genetic variations involved is crucial in predicting whether a patient will have a good response to a drug, a bad response, or no response at all.
