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J Neurooncol. 2010 Apr;97(2):247-55. doi: 10.1007/s11060-009-0009-z. Epub 2009 Sep 21.

A phase II prospective study of sequential myeloablative chemotherapy with hematopoietic stem cell rescue for the treatment of selected high risk and recurrent central nervous system tumors.

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  • 1Center for Cancer and Blood Disorders, Phoenix Children's Hospital, 1919 East Thomas Road, Phoenix, AZ, 85016, USA.


High risk/recurrent CNS tumors have a poor prognosis. We studied tandem high dose chemotherapy (HDC) with hematopoietic progenitor stem cell rescues (HPCR) as potentially curative therapy. Twenty-four patients (mean age 6.8 years) were enrolled, 19 underwent HDC/HPCR. Diagnoses were medulloblastoma (n = 9), germ cell tumor (n = 4), high grade astrocytoma (n = 2), supratentorial PNET (n = 1), pineoblastoma (n = 2), or papillary meningioma (n = 1). Cytoreduction regimen #1 consisted of carboplatin (500 mg/m(2)) x 3 days, etoposide (250 mg/m(2)) x 3 days, and thiotepa (300 mg/m(2)) x 3 days. Patients without progression or excessive toxicity (n = 11), received regimen #2 with melphalan (60 mg/m(2)) x 3 days and cyclophosphamide (1,500 mg/m(2)) x 4 days. Projected overall/event-free survival for the 19 patients was 51/37% and 34/28% at 1 and 5 years, respectively. Toxicity was significant with six treatment related deaths including four with veno-occlusive disease. This regimen of sequential HDC/HPCR in high risk/recurrent CNS tumor patients is not feasible due to toxicity.

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