Treatment Option Overview
Many of the improvements in survival in childhood cancer have been made as a
result of clinical trials that have attempted to improve on the best
accepted therapy available. Clinical trials in pediatrics are designed to compare new
therapy with therapy that is currently accepted as standard. This comparison
may be done in a randomized study of two treatment arms or by evaluating a
single new treatment and comparing the results with those previously obtained
with existing therapy.
Because of the relative rarity of cancer in children, all patients with brain
and spinal cord tumors should be considered for entry into a clinical trial. To determine and
implement optimum treatment, treatment planning by a multidisciplinary team of
cancer specialists who have experience treating childhood brain tumors is
required. Radiation therapy of pediatric brain tumors is very technically demanding and should be carried out in centers that have experience in this
area to ensure optimal results.
Debilitating effects on growth and neurologic development have frequently been
observed following radiation therapy, especially in younger children.[1-3]
Secondary tumors have increasingly been diagnosed in long-term survivors.[4]
For this reason, the role of chemotherapy in allowing a delay or reduction in the
administration of radiation therapy is under study, and preliminary results
suggest that chemotherapy can be used to delay, limit, and sometimes obviate, the need
for radiation therapy in children with benign and malignant lesions.[5-7]
Long-term management of these patients is complex and requires a
multidisciplinary approach.
References
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Ris MD, Packer R, Goldwein J, et al.: Intellectual outcome after reduced-dose radiation therapy plus adjuvant chemotherapy for medulloblastoma: a Children's Cancer Group study. J Clin Oncol 19 (15): 3470-6, 2001.
[PUBMED Abstract]
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Johnson DL, McCabe MA, Nicholson HS, et al.: Quality of long-term survival in young children with medulloblastoma. J Neurosurg 80 (6): 1004-10, 1994.
[PUBMED Abstract]
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Packer RJ, Sutton LN, Goldwein JW, et al.: Improved survival with the use of adjuvant chemotherapy in the treatment of medulloblastoma. J Neurosurg 74 (3): 433-40, 1991.
[PUBMED Abstract]
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Jenkin D: Long-term survival of children with brain tumors. Oncology (Huntingt) 10 (5): 715-9; discussion 720, 722, 728, 1996.
[PUBMED Abstract]
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Duffner PK, Horowitz ME, Krischer JP, et al.: Postoperative chemotherapy and delayed radiation in children less than three years of age with malignant brain tumors. N Engl J Med 328 (24): 1725-31, 1993.
[PUBMED Abstract]
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Packer RJ, Lange B, Ater J, et al.: Carboplatin and vincristine for recurrent and newly diagnosed low-grade gliomas of childhood. J Clin Oncol 11 (5): 850-6, 1993.
[PUBMED Abstract]
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Mason WP, Grovas A, Halpern S, et al.: Intensive chemotherapy and bone marrow rescue for young children with newly diagnosed malignant brain tumors. J Clin Oncol 16 (1): 210-21, 1998.
[PUBMED Abstract]
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