In their efforts to explore more effective and efficient ways to conduct clinical trials, Mayo Clinic cancer researchers will present new recommendations about how long studies should track results when evaluating new cancer therapies.
An analysis led by Daniel Sargent, Ph.D., director of statistics for Mayo Clinic Cancer Center, shows that many study results garnered after three years are just as reliable as those produced after five years. But, data provided after two years of study are less precise, and those provided after only one year are not sufficiently reliable.










