Biologic therapy uses the body's own disease fighting mechanisms to block the development and growth of cancerous cells. These treatments, which include antibody and targeted therapy, are a relatively new field and continue to change and grow with additional research.
Some immune system substances, like antibodies, can be produced in the laboratory. They change how the body interacts with cancerous cells, so a patient's immune system can better fight the disease.
Targeted therapy interferes with the molecular make-up of cancer cells. These special drugs "target" specific parts of the cell, changing how it functions. Depending on how the cell is constructed, targeted therapy may slow cancer growth, or even kill the cells outright.