Why take part in a clinical trial?

People are free to decide if they want to take part in a trial or not. It is important that people taking part in a trial understand why the research is being done and what it will involve.

Before a medicine can be prescribed, it must be tested by researchers and approved by health authorities. It is only through clinical trials and the help of people taking part that researchers and authorities can get answers to their questions about new medicines.


Clinical trials test potential new medicines to see if the medicine works, if it is safe, and what the side effects are. Side effects are any unwanted medical events.



Taking part in a clinical trial is a personal decision. People take part in a clinical trial for many different reasons. Some people want to help getting new and better medicines on the market, while others want to try a potential new medicine. People may or may not benefit from taking the trial medicine. Anyone participating in a clinical trial may choose to drop out of a trial at any time.


People will always receive both spoken and written information about the trial before deciding to take part. The trial doctor will make sure that the people taking part understand the details of the trial. One of the aspects of a clinical trial is that people participating are monitored by a healthcare professional on a regular basis. Deciding to take part is called to give informed consent.


People participating in clinical trials may contribute to scientific advances. They contribute to improving the scientific understanding of various diseases. LEO Pharma are indebted to all who participated in clinical trials. Without them, no new medical advancements would be made.