A study looking at a blood test to monitor people after surgery for seminoma or dysgerminoma (OTIS-S)

This study is trying to find out whether a blood test called miRNA can be used to monitor people after surgery for a seminoma or dysgerminoma. It is for children, teenagers and adults.

It is open to people who have had surgery to remove an early stage germ cell tumour:

• of the testes called a pure seminoma or

• called a dysgerminoma. This type of germ cell cancer mainly affects the ovaries but can affect other parts of the body.

Please note, we use the term ‘you’ in this summary, but of course if you are a parent of a child with cancer, we are referring to your child.