How Tim could join the trial
The Trial Manager ensures that patients are selected at random to be in either of the test groups. A computer may be used to assign patients to each group to make sure that the groups are made up of similar types of people. This makes it easier to compare the results of the trial.
Tim still has some questions about the safety of an experimental medicine, so the Research Nurse explains how clinical trials work. There are several steps a medicine must go through to ensure it is safe and effective.