median survival

Pronunciation: (MEE-dee-un ser-VY-vul)

The length of time from either the date of diagnosis or the start of treatment for a disease, such as cancer, that half of the patients in a group of patients diagnosed with the disease are still alive. In a clinical trial, measuring the median survival is one way to see how well a new treatment works. Also called median overall survival.

Source: NCI Dictionary of Cancer Terms

2012-04-11 Date last modified: 2012-08-15