Health benefits of herbs and spices: the past, the present, the future
 

In this 2006 article from The Medical Journal of Australia you can find a summary in table format of preclinical research on herbs for cancer:
http://www.mja.com.au/public/issues/...nt_210806.html

Even if some research results look exciting prudence calls for checking with a caregiver before self supplementing to avoid possible interaction with conventional treatments.