A trial looking at proton beam radiotherapy for sinus cancer (PROTIS)

This trial is comparing proton beam therapy with intensity modulated radiotherapy to treat cancer of the nose and sinuses.

It is open to people with cancer of the nose and sinuses that has:

• spread to other parts of the head such as the eye socket, skin, roof of the mouth or other sinus cavities or

• spread to the ethmoidal sinus only. These are the small cavities in the spongy ethmoid bone in the upper part of the nose.