NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,468 terms related to cancer and medicine.
We offer a widget that you can add to your website to let users look up cancer-related terms. Get NCI’s Dictionary of Cancer Terms Widget.
- non-inferiority trial
- listen (… in-FEER-ee-OR-ih-tee TRY-ul)
- A study that tests whether a new treatment is not worse than an active treatment it is being compared to. Non-inferiority trials are sometimes done when a placebo (an inactive treatment) cannot be used. These trials may show that a new treatment (such as a drug) is not worse than the active treatment being compared, and it may be safer and easier to take or cause fewer side effects.