Nonrandomized comparison of neurofibromatosis type 1 and non-neurofibromatosis type 1 children who received carboplatin and vincristine for progressive low-grade glioma: A report from the Children's Oncology Group.
Cancer
; 122(12): 1928-36, 2016 06 15.
Article
en En
| MEDLINE
| ID: mdl-27061921
ABSTRACT
BACKGROUND:
To evaluate tumor responses, event-free survival (EFS), overall survival (OS), and toxicity of chemotherapy, children with neurofibromatosis type 1 (NF1) and progressive low-grade glioma were enrolled into the Children's Oncology Group (COG) A9952 protocol and treated with carboplatin and vincristine (CV).METHODS:
Non-NF1 patients were randomized to CV or thioguanine, procarbazine, 1-(2-chloroethyl)-3-cyclohexyl-1-nitrosourea, and vincristine in COG A9952. NF1 patients were assigned to CV only. NF1 patients and non-NF1 patients who were treated with CV were compared with respect to baseline characteristics, toxicity, tumor responses, EFS, and OS.RESULTS:
A total of 127 eligible patients with NF1 were nonrandomly assigned to CV 42 NF1 patients (33%) had events, and 6 (4.7%) died. The 5-year EFS rate was 69% ± 4% for the CV-NF1 group and 39% ± 4% for the CV-non-NF1 group (P < .001). In a univariate analysis, NF1 children had a significantly higher tumor response rate and superior EFS and OS in comparison with CV-treated children without NF1. NF1 patients and non-NF1 patients differed significantly in amount of residual tumor, extent of resection, tumor location, and pathology. According to a multivariate analysis, NF1 was independently associated with better EFS (P < .001) but not with OS. NF1 patients also had a decreased risk of grade 3 or 4 toxicities in comparison with non-NF1 patients. Three second malignant neoplasms occurred in NF1 patients receiving CV (CV-NF1 group) at a median of 7.8 years (range, 7.3-9.4 years) after enrollment, but there were none in the non-NF1 group.CONCLUSIONS:
Children with NF1 tolerated CV well and had tumor response rates and EFS that were superior to those for children without NF1. Cancer 2016;1221928-36. © 2016 American Cancer Society.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Neoplasias Encefálicas
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Protocolos de Quimioterapia Combinada Antineoplásica
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Neurofibromatosis 1
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Glioma
Tipo de estudio:
Clinical_trials
Límite:
Child
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Child, preschool
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Female
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Humans
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Male
Idioma:
En
Revista:
Cancer
Año:
2016
Tipo del documento:
Article