Clinical trials
How clinical trials work
Clinical trials are organised studies that help researchers understand whether a treatment is safe and useful.
Before a study starts
Researchers write a plan that explains the question, the treatment being studied, the visits and the information they will collect. An ethics committee reviews the plan before people can take part.
During the study
The study team explains what will happen, checks whether the study is a good fit and asks for informed consent. You can ask questions, take time to decide and stop taking part at any time.
What this page cannot tell you
The public registry provides each study's own description. It does not decide whether a study is right for you. Talk with your healthcare team and the study team about eligibility, benefits, risks and alternatives.