RE:Why 25 locations for phase II trials?Hi justvisiting99
Basically "thadeush" is correct. But we need to add some varying genetic makeup too.
From wikipedia: https://en.wikipedia.org/wiki/Multicenter_trial
Benefits[edit]
The benefits of multicenter trials include a larger number of participants, different geographic locations, the possibility of inclusion of a wider range of population groups, and the ability to compare results among centers, all of which increase the generalizability of the study. In many cases, efficacy will vary significantly between population groups with different genetic, environmental, and ethnic or cultural backgrounds ("demographic" factors); normally only geographically dispersed trials can properly evaluate this.
Thanks;
made2last