phase III trial

Definition / meaning of phase III trial

A study to compare the results of people taking a new treatment with the results of people taking the standard treatment (for example, which group has better survival rates or fewer side effects). In most cases, studies move into phase III only after a treatment seems to work in phases I and II. Phase III trials may include hundreds of people.

Listed under:

Find More About 'phase III trial'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

Leave a Comment