All clinical trials are different and can address many things. Whether a person is suitable for a trial will depend on what question the trial is trying to answer.

Clinical trials specify criteria for participation, this may include:

• your type and stage of cancer
• your age
• how well you are
• whether you have any other health problems or have had previous cancer treatment
• whether other tests are required.

You will also need to understand:

• the possible benefits and risks of the proposed treatment
• where the treatment and follow-up will take place
• how the treatment will affect your daily life
• the time and any costs involved.

Your doctor will help you determine whether any suitable trials are available.  Your doctor must also explain the trial to you and make sure you understand it completely before you agree to participate.