Day 8: Tim meets the Research Nurse
The Research Nurse explains to Tim that this trial is for a new medicine to treat asthma. If Tim joins the trial, he may or may not receive the experimental medicine—he may receive the standard best treatment for asthma, which he is already receiving. Neither he nor his doctor or the research team will know which treatment he will receive.
The Research Nurse explains that this is called “double blinding” and it is done so that researchers’ and patients’ judgment of whether the treatment works or has side effects is not influenced by their expectations.