Questions to ask your doctor about clinical trials

Older woman talking to her doctor

There's a lot to think about if you're deciding whether or not to take part in a clinical trial, and some of the information can be a bit hard to understand.

Asking questions can help you to understand more about clinical trials and to decide if a trial is right for you. 


  • Write down any questions you have before you go to your appointment.
  • Bring someone with you, if possible - they can help you to remember what the doctor or nurse says. 
  • Bring a notebook and write down the answers to your questions.
  • If you don't understand something, ask the doctor or nurse to explain again.

Questions about clinical trials

  • What does the trial hope to find out?
  • What is the evidence for the trial?
  • Will the trial cost me any money?
  • What is the trial called?
  • What treatment will I get?
  • What is the difference between the trial treatment and standard treatment?
  • What are the side effects of the trial treatment?
  • What are the benefits of taking part?
  • What are the risks of taking part?
  • How many patients are taking part in this trial?
  • What is expected of me during the trial?
  • How long will my treatment take?
  • Will I have many extra visits in comparison to the standard treatment?
  • Where will I get my treatment? Will I be in the same hospital and have the same doctors?
  • When will the trial results be available?
  • What will happen if I want to stop the trial treatment?
  • What treatment will I have if I do not want to take part in the trial?

For more information

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