Allogeneic Tumor Cell Vaccination With Oral Metronomic Cytoxan in Patients With High-Risk Neuroblastoma

"1x10\^7cells/m2 each of unmodified SKNLP, with gene-modified SJNB-JF-IL2 and SJNB-JF-LTN neuroblastoma cells will be given by subcutaneous injection while suspended in Ringers solution with 5% HSA in a single syringe in a volume of up to 1 ml.~Vaccines will be given on day 0 of week 0 and then on day 0 (+ 72 hours) of weeks 2, 4, 6, 9, 12, 16, 20.~Cells will be administered as a subcutaneous injection over 1 minute using a 21-gauge needle. Procedural pain control methods may be used per institutional protocol."

Metronomic oral cytoxan will start 72 hours prior to the first vaccination at a dose of 50 mg/m2/day. Cytoxan will be held on the day of vaccine administration and for the next 96 hours. After the first vaccine, patients will take 25 mg/m2/day as outlined on the roadmap.