Why tell them
A trial can change your medicines, your test schedule and the side effects you notice. Your doctor needs to know so that care outside the study stays safe and joined up.
What to ask
Ask whether the study seems reasonable for someone with your history, how it compares with your other options, and whether anything in your records would make it a poor fit.
Ask too whether they are happy to share records with the study team if you decide to go ahead.
If they are unsure
Many doctors have not come across a particular study. Offer to share the study team’s contact details, so the two can speak directly. A second opinion from a specialist is always reasonable.
While you take part
Keep seeing your own doctor as usual. Tell the study team about any new medicine your doctor prescribes, and tell your doctor about any change the study makes.
This article is general information. Your own doctor and the study team can speak to your situation.


