N10: A Study of Reduced Chemotherapy and Monoclonal Antibody (mAb)-Based Therapy in Children With Neuroblastoma

Inclusion Criteria: * Diagnosis of NB as defined by histopathology, BM metastases plus high urine catecholamine levels, or positivity in MIBG scan. * HR-NB, defined as MYCN-amplified stage L2/M/MS at any age and stage M in patients \>18 months old. * No more than one prior cycle of HR-NB chemotherapy * Age \<19 years. * Signed informed consent indicating awareness of the investigational nature of this treatment. Exclusion Criteria: * Severe dysfunction of major organs, i.e., renal, cardiac, hepatic, neurologic, pulmonary, hematologic, or gastrointestinal toxicity \>/= to grade 3 °Organ dysfunction due to direct effects of primary tumor or metastatic disease, or due to paraneoplastic syndromes associated with neuroblastoma, will not be considered in exclusion criteria. Similarly, complications of interventions to control above direct effects (e.g., steroid- induced hyperglycemia or hypertension) will also not be considered in exclusion criteria * Inability to comply with protocol requirements * Pregnancy