A trial looking at hydrogen peroxide to help radiotherapy work better for breast cancer (KORTUC)

This trial is looking at whether hydrogen peroxide can make breast cancer more sensitive to radiotherapy. This could make the radiotherapy work better.

The trial is open to people with breast cancer that:

• has grown to greater than 3cm in size in the breast and or spread to the nearby lymph nodes or tissues (locally advanced)

• or came back in your breast or nearby lymph nodes after treatment (recurrent)