- Have completed protocol SSC-710 and received either DCVax-001 plus poly ICLC, poly ICLC only or sterile saline. If less than 6 volunteers who originally received placebo (poly ICLC only or sterile saline) under protocol SSC_710 are willing to participate and are found eligible to participate in this proposed study, new volunteers can be enrolled as long as they are eligible according to the remaining inclusion and exclusion criteria below.