Challenge: Choice of control for clinical trials - ICH E10
Question Number 1
What is a Historical Control in the clinical trial setting?
A
Subjects are given one treatment for a period of time and then the other treatment for the same length of time
B
Choice of comparator is based on the treatment which has been in use for the longest time.
C
The subjects are compared with another group of subject who have been treated at an earlier time
D
There is no such thing

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