Definition of primary endpoint - NCI Dictionary of Cancer Terms

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primary endpoint

The main result that is measured at the end of a study to see if a given treatment worked (e.g., the number of deaths or the difference in survival between the treatment group and the control group). What the primary endpoint will be is decided before the study begins.

Previous Definitions:	primary care, primary care doctor, primary central nervous system lymphoma, primary CNS lymphoma, primary effusion lymphoma
Next Definitions:	primary myelofibrosis, primary ovarian insufficiency, primary therapy, primary treatment, primary tumor