Participation in a trial is not obligatory. You must know the followings before participating in a trial:

1.What is the objective of this trial?
The objective of a research is to increase knowledge. Therefore you should know what kind of information this trial is exploring. Research personnel should use a narrative and simple language to explain the objective of this trial and whether your participation is obligatory. If you are not willing to participate, what other treatment options are available.

2.What will happen during the trial?
You need to know what will be performed on you during the trial, how you should cooperate (such as: What is the frequency of return visits? How much blood will be drawn each time? What kind of tests will be performed?), and what kind...More