Prayers up! Lot’s of research in immunotherapy for neuroblastoma. Check clinicaltrials.gov but here is one example, http://www.dana.org/news/features/detail.aspx?id=22928
Our 15 year-old son survived stage 4 Neuro Blastoma. He was diagnosed at 18 mos and cancer-free by ~3 yrs old.
The journey started with this book:
http://www.amazon.com/Your-Child-Doesnt-Have-Die/dp/0965471403
If you have questions please FreepMail me. My wife is the real expert - having poured all her time & energy into the treatment.
Oh - and more importantly, prayers up...