Arches. Photo by Daniel Chia
HOPES: Huntington's Outreach Project for Education, at Stanford
Feb
08
2011

phase II clinical trial

The second in a series of studies that test the safety and efficacy of a new drug or treatment in human participants and is only performed once the drug has successfully passed theĀ phase I clinical trial. This study involves more participants and attempts to determine if the treatment has positive effects on the participantsā€™ conditions. Side effects continue to be studied.