David,

I just confirmed with my doctors at U of M that there are only two known methods to kill off SCC, surgery and radiation. There is no known chemo that kills SCC. Current chemo is used for two purposes

1) As an aid to radiation therapy, the chemo weakens the cancer and makes the radiation more effective. Studies have shown a 10% increase in long term survival rates when chemo is used concurrently with radiation. They are now advocating a low dose regime of weekly chemo when used alongside the radiation.

2) As a palliative treatment to slow the growth of the tumor. This is used when surgery and radiation are no longer an option and is usually administered in full dosages every three months. The treatment can extend the life of the patient but will not cure the cancer.

Hope this helps.