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  • Title: NB87 induction protocol for stage 4 neuroblastoma in children over 1 year of age: a report from the French Society of Pediatric Oncology.
    Author: Coze C, Hartmann O, Michon J, Frappaz D, Dusol F, Rubie H, Plouvier E, Leverger G, Bordigoni P, Béhar C, Beck D, Mechinaud F, Bergeron C, Plantaz D, Otten J, Zucker JM, Philip T, Bernard JL.
    Journal: J Clin Oncol; 1997 Dec; 15(12):3433-40. PubMed ID: 9396394.
    Abstract:
    PURPOSE: NB87 was designed to test the efficacy of a short, non cross-resistant, induction protocol for unselected patients over 1 year of age with stage 4 neuroblastoma. A secondary objective was to compare in a randomized study the toxicity of two modalities of cisplatin administration. PATIENTS AND METHODS: A total of 183 patients received two cycles of alternating sequences: cyclophosphamide 300 mg/m2/d on days 1 to 5, vincristine 1.5 mg/m2/d on days 1 and 5, and doxorubicin 60 mg/m2/d on day 5 (CADO); and cisplatin 40 mg/m2/d and etoposide 100 mg/m2/d on days 1 to 5 (CVP), followed by surgery of the primary tumor (126 patients). Ninety-one were randomized to receive cisplatin either as bolus (BO; n = 48) or continuous infusion (CI; n = 43). International Neuroblastoma Staging System (INSS) and Response Criteria (INRC) were used with emphasis on skeletal evaluation by meta-iodobenzylguanidine (MIBG). RESULTS: Hematotoxicity was predominant, with a higher incidence of neutropenia (P = .01) for CADO and of thrombocytopenia for CVP (P < .001). Severe infections, as well as nonhematologic toxicities, occurred more often after the first sequence. Gastrointestinal complications were predominant during both courses of CVP. The toxic death rate, including surgery, was 3%. Complete remissions (CRs) were less frequent on MIBG (45%) compared with marrow (66%) or other metastases (61%). Combining all metastatic sites resulted in a 39% CR rate. After surgery, the final CR rate was 42%. Nephrotoxicity was minimal in both arms (92% normal clearance for CI v 82% for BO). Hearing loss greater than 40 dB at 6,000 to 8,000 Hz was reported equally in both arms (n = 6 for CI v n = 5 for BO). CONCLUSION: Intensified chemotherapy using CADO/CVP increases CR rates despite a shorter induction duration. However, the rate of MIBG normalization remains unsatisfactory and could be raised through the dose-intensive use of agents such as cyclophosphamide.
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