09/21/2026
The same treatment can affect two people differently.
Age, genetics, other medications, health conditions, and individual biological differences can all influence how someone responds to a treatment.
Clinical research helps scientists study these differences and better understand which treatments may work, for whom, and under what circumstances.
It’s one of the reasons continued research matters: medicine isn’t always one-size-fits-all.
Sources: National Institutes of Health (NIH) • National Human Genome Research Institute (NHGRI) • U.S. Food & Drug Administration (FDA)