PMID- 10519894 OWN - NLM STAT- MEDLINE DCOM- 19991014 LR - 20240103 IS - 0028-4793 (Print) IS - 0028-4793 (Linking) VI - 341 IP - 16 DP - 1999 Oct 14 TI - Treatment of high-risk neuroblastoma with intensive chemotherapy, radiotherapy, autologous bone marrow transplantation, and 13-cis-retinoic acid. Children's Cancer Group. PG - 1165-73 AB - BACKGROUND: Children with high-risk neuroblastoma have a poor outcome. In this study, we assessed whether myeloablative therapy in conjunction with transplantation of autologous bone marrow improved event-free survival as compared with chemotherapy alone, and whether subsequent treatment with 13-cis-retinoic acid (isotretinoin) further improves event-free survival. METHODS: All patients were treated with the same initial regimen of chemotherapy, and those without disease progression were then randomly assigned to receive continued treatment with myeloablative chemotherapy, total-body irradiation, and transplantation of autologous bone marrow purged of neuroblastoma cells or to receive three cycles of intensive chemotherapy alone. All patients who completed cytotoxic therapy without disease progression were then randomly assigned to receive no further therapy or treatment with 13-cis-retinoic acid for six months. RESULTS: The mean (+/-SE) event-free survival rate three years after the first randomization was significantly better among the 189 patients who were assigned to undergo transplantation than among the 190 patients assigned to receive continuation chemotherapy (34+/-4 percent vs. 22+/-4 percent, P=0.034). The event-free survival rate three years after the second randomization was significantly better among the 130 patients who were assigned to receive 13-cis-retinoic acid than among the 128 patients assigned to receive no further therapy (46+/-6 percent vs. 29+/-5 percent, P=0.027). CONCLUSIONS: Treatment with myeloablative therapy and autologous bone marrow transplantation improved event-free survival among children with high-risk neuroblastoma. In addition, treatment with 13-cis-retinoic acid was beneficial for patients without progressive disease when it was administered after chemotherapy or transplantation. FAU - Matthay, K K AU - Matthay KK AD - Department of Pediatrics, University of California School of Medicine, San Francisco, USA. FAU - Villablanca, J G AU - Villablanca JG FAU - Seeger, R C AU - Seeger RC FAU - Stram, D O AU - Stram DO FAU - Harris, R E AU - Harris RE FAU - Ramsay, N K AU - Ramsay NK FAU - Swift, P AU - Swift P FAU - Shimada, H AU - Shimada H FAU - Black, C T AU - Black CT FAU - Brodeur, G M AU - Brodeur GM FAU - Gerbing, R B AU - Gerbing RB FAU - Reynolds, C P AU - Reynolds CP LA - eng GR - CA02649/CA/NCI NIH HHS/United States GR - CA13539/CA/NCI NIH HHS/United States GR - CA22794/CA/NCI NIH HHS/United States GR - etc. PT - Clinical Trial PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - N Engl J Med JT - The New England journal of medicine JID - 0255562 RN - EH28UP18IF (Isotretinoin) SB - IM MH - Adolescent MH - Antineoplastic Combined Chemotherapy Protocols/adverse effects/*therapeutic use MH - *Bone Marrow Transplantation/adverse effects MH - Child MH - Child, Preschool MH - Combined Modality Therapy MH - Disease-Free Survival MH - Humans MH - Infant MH - Isotretinoin/adverse effects/*therapeutic use MH - Life Tables MH - Neuroblastoma/*drug therapy/mortality/radiotherapy/*therapy MH - Prospective Studies MH - Risk MH - Transplantation Conditioning MH - Whole-Body Irradiation EDAT- 1999/10/16 00:00 MHDA- 1999/10/16 00:01 CRDT- 1999/10/16 00:00 PHST- 1999/10/16 00:00 [pubmed] PHST- 1999/10/16 00:01 [medline] PHST- 1999/10/16 00:00 [entrez] AID - 10.1056/NEJM199910143411601 [doi] PST - ppublish SO - N Engl J Med. 1999 Oct 14;341(16):1165-73. doi: 10.1056/NEJM199910143411601.