- At pre-ASCT evaluation, patients must meet the International Neuroblastoma Response Criteria (INRC) for complete response (CR), very good partial response (VGPR), or partial response (PR) for primary site, soft tissue metastases and bone metastases; patients who meet those criteria must also meet the protocol specified criteria for bone marrow response as outlined below: =< 10% tumor (of total nucleated cellular content) seen on any specimen from a bilateral bone marrow aspirate/biopsy; patients who have no tumor seen on the prior bone marrow, and then have =< 10% tumor on any of the bilateral marrow aspirate/biopsy specimens done at pre-ASCT and/or pre-enrollment evaluation will also be eligible; (Note that, per INRC, this would have been defined as an "overall" response of progressive disease [PD])