| Temozolomide in relapsed pediatric brain tumors: 14 cases from a single center. | |
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MedLine Citation:
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PMID: 21866330 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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AIM: Temozolomide is an active drug against gliomas in adults. It also has some promising effects in pediatric patients with brain tumors. We have conducted a retrospective study to investigate the effectiveness of temozolomide in patients with relapsed brain tumors. PATIENTS AND METHODS: The files of 14 children treated at our hospital between 2005 and 2010 with the diagnoses of relapsed brain tumors were reviewed for pathological characteristics, treatment results, and outcomes. RESULTS: The median age at relapse was 8 years (range, 1.08-23; F/M, 5/9). Diagnoses included medulloblastoma (n = 5), atypical teratoid rhabdoid tumor (n = 2), ependymoma (n = 2), glioneuronal tumor (n = 1), malignant neoplasm (n = 1), pontine glioma (n = 1), astrocytoma grade III (n = 1), and glioblastoma multiforme (n = 1). All patients except the one with pontine glioma had undergone surgical resection, and all had prior adjuvant chemotherapy. Twelve out of 14 patients had received radiotherapy. The median number of temozolomide courses was 5.0 (range, 1-24). Objective response rate in our patients was 35.7% (three complete responses, one partial response, and one minor response). Stable disease achieved in 14.3% of patients and 50% had progressive disease. Median survival time was 8 months (range, 1-55). At the end of the study, three patients were alive. Hematological toxicity was seen in 30.8% of all courses. CONCLUSIONS: Relapsed brain tumors in childhood have an unfavorable prognosis. These data suggest that temozolomide might be an active agent against recurrent medulloblastoma. Although overall objective response rate was low, further multicentric studies with temozolomide may be warranted in children with recurrent brain tumors. |
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Authors:
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Canan Akyüz; Hacı Ahmet Demir; Ali Varan; Bilgehan Yalçın; Tezer Kutluk; Münevver Büyükpamukçu |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-8-25 |
Journal Detail:
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Title: Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery Volume: - ISSN: 1433-0350 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-8-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8503227 Medline TA: Childs Nerv Syst Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Institute of Oncology, Department of Pediatric Oncology, Hacettepe University, 06100, Ankara, Turkey. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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