phase 2/phase 3 clinical trial
(fayz …/fayz ... KLIH-nih-kul TRY-ul)
A study that
tests how well a new treatment works for a certain type of
cancer or other disease and compares the new treatment with
a standard treatment. Phase 2/phase 3 clinical trials may also
provide more information about the safety and side effects
of the new treatment. Combining phases 2 and 3 may allow
research questions to be answered more quickly or with
fewer patients. Also called phase II/III clinical trial.