The FDA in the United States has recently approved the drug Unituxin in the treatment of high risk neuroblastoma. While there are many side effects, the progress thus far is promising.
http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm437460.htm#.VQBD26J0icQ.facebook
http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm437460.htm#.VQBD26J0icQ.facebook