From what I found on the internet, NED means "no evidence of disease" and EGF is "Epideral Growth Therapy". They have found there is a big relationship between EGF and EGF-R (which is it's receptor) and cancer; the receptor has been found in many tumors. They have been testing an EGF-vaccine that is supposed to attack EGF (
http://www.scf.sld.cu/pdf/premios/2004/cim.pdf).