Trial Parameters
Brief Summary
Difluoromethylornithine (DFMO) will be used in an open label, single agent, multicenter, study for patients with neuroblastoma in remission. In this study subjects will receive 730 Days of oral difluoromethylornithine (DFMO) at a dose of 750 mg/m2 ± 250 mg/m2 BID (strata 1, 2, 3, and 4) OR 2500 mg/m2 BID (stratum 1B) on each day of study. This study will focus on the use of DFMO in high risk neuroblastoma patients that are in remission as a strategy to prevent recurrence.
Eligibility Criteria
Inclusion Criteria: * All patients must have a pathologically confirmed diagnosis of neuroblastoma, \< 30.99 years of age and classified as high risk at the time of diagnosis. Exception: patients who are initially diagnosed as non-high-risk neuroblastoma, but later converted (and/or relapsed) to high risk neuroblastoma are also eligible. * All patients must be in complete remission (CR): 1. No evidence of residual disease on scan 2. No evidence of disease metastatic to bone marrow. * Specific Criteria by Stratum: Stratum 1/1B: All patients must have completed standard upfront therapy that replicates treatment which patients who were enrolled on ANBL0032 received, including: intensive induction chemotherapy and (if feasible) resection of primary tumor, followed by: consolidation with high-dose chemotherapy with stem cell transplant and radiotherapy, followed by: immunotherapy with Ch14.18/IL-2/GM-CSF (dinutuximab) and retinoic acid;. All subjects on Stratum 1/B must have also met the fo