Glossary
Disease-free survival
(dih-ZEEZ ... ser-VY-vul)
In cancer, the
length of time after primary treatment for a cancer ends
that the patient survives without any signs or symptoms of
that cancer. In a clinical trial, measuring the
disease-free survival is one way to see how well a
new treatment works. Also called DFS, relapse-free survival, and RFS.
Definition from the National Cancer Institute’s NCI Dictionary of Cancer Terms.