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Results of treatment of children with recurrent medulloblastoma/primitive neuroectodermal tumors with lomustine, cisplatin, and vincristine.

Abstract
Primitive neuroectodermal tumors/medulloblastoma (PNET/MB) are the most common posterior fossa tumors in childhood. Despite surgery and radiation therapy, 40% to 50% of children with PNET/MB will have recurrent disease. Various chemotherapeutic agents are transiently effective in recurrent PNET/MB, but long-lasting responses are rarely attainable. To increase the rate and duration of response in children with recurrent PNET/MB, the authors treated seven patients (ages 2-18 years; median, 10 years) with lomustine (CCNU) (100 mg/m2), cisplatin (CPDD) (90 mg/m2) and vincristine (VCR) (1.5 mg/m2; maximum, 2 mg) in a 6-week cycle for a maximum of eight cycles. Six of six evaluable patients responded to chemotherapy. Four patients had a complete response; three with complete disappearance of tumor by imaging studies; and one with eradication of extraneural disease for a median of 24 months from relapse (13-29 months). Overall disease-free survival was 18.5 months. All six patients have subsequently died of recurrent tumor. Major toxicities consisted of reversible bone marrow suppression (six of six), high frequency hearing loss (six of six) and decreased renal function (three of six). All patients required dosage modification for toxicity. A regimen of CCNU, VCR, and CPDD is effective therapy in children with relapsed PNET/MB and can produce relatively long-term disease control with good quality of life. Further investigation into the efficacy of this combination as adjuvant chemotherapy in newly diagnosed high-risk PNET/MB is now being performed.
AuthorsI B Lefkowitz, R J Packer, K R Siegel, L N Sutton, L Schut, A E Evans
JournalCancer (Cancer) Vol. 65 Issue 3 Pg. 412-7 (Feb 01 1990) ISSN: 0008-543X [Print] United States
PMID2153428 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Vincristine
  • Lomustine
  • Cisplatin
Topics
  • Adolescent
  • Antineoplastic Combined Chemotherapy Protocols (adverse effects, therapeutic use)
  • Cerebellar Neoplasms (drug therapy, mortality)
  • Child
  • Child, Preschool
  • Cisplatin (administration & dosage)
  • Erythrocyte Transfusion
  • Female
  • Glomerular Filtration Rate (drug effects)
  • Humans
  • Infant
  • Lomustine (administration & dosage)
  • Male
  • Medulloblastoma (drug therapy, secondary)
  • Neoplasm Recurrence, Local (diagnostic imaging, drug therapy, mortality)
  • Neoplasms, Germ Cell and Embryonal (drug therapy, mortality, secondary)
  • Neutropenia (chemically induced)
  • Platelet Transfusion
  • Radiography
  • Thrombocytopenia (chemically induced)
  • Vincristine (administration & dosage)

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