Gene Modified Allogeneic Neuroblastoma Cells For Treatment of Relapsed/Refractory Neuroblastoma

"A genetically modified (retroviral) allogeneic tumor vaccine coupled with the human interleukin-2. Patients were treated with 4 injections of these gene-modified tumor cells. The first two were given at weeks 1 and 2. Patients then had a 2 week rest and the remaining 2 injections were given at weeks 4 and 5. A complete evaluation for evidence of toxicity and response were performed at week 8.~At this week 8 evaluation, if there was no excessive toxicity, progressive disease requiring therapy, and if more transduced cells are available, patients had the option to receive 4 additional injections. These additional injections were separated by 1 month at the higher of the two dosage levels originally received."