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  • Title: [Clinical study of high-dose chemotherapy with peripheral blood stem cell transplantation for poor-risk germ cell tumor].
    Author: Okamura K, Yuba H, Mizutani K, Gotoh M, Ono Y, Ohshima S, Naoe T.
    Journal: Hinyokika Kiyo; 1999 Nov; 45(11):793-8. PubMed ID: 10637746.
    Abstract:
    Between January 1997 and December 1998, six patients with germ cell tumor were treated with high-dose CEC: carboplatin (1,500 mg/m2), etoposide (1,200 mg/m2) and cyclophosphamide (100 mg/kg), followed by peripheral blood stem cell transplantation (PBSCT) at Nagoya University Hospital. Four patients received one cycle of high-dose CEC and two received two cycles. The reasons why the high-dose CEC was administered included: 1) refractory to the induction chemotherapy (AFP/beta-HCG elevated during the induction chemotherapy or prolonged half-life of each marker) in three patients, 2) relapse in two patients, and 3) consolidation in one with unresectable mediastinal residual tumor. There were no treatment-related deaths and grade 1 hepatotoxicity occurred in one (17%) patient. The median duration (range) from PBSCT until a granulocyte count of 500/microL and a platelet count of 50,000/microL was 8.5 (8-11) and 11 (9-16) days, respectively. Of the six patients studied, 5 responded to the treatment; two achieved a complete response (CR) and three achieved a partial response (PR). One patient achieving a CR and two achieving a PR remained in complete remission after 23 to 24 months of follow-up, while the remaining patients with a CR, a PR and an incomplete response died of the disease. High-dose CEC could be administered without serious toxicity but the effectiveness of high-dose CEC for the poor-risk patients with germ cell tumor needs to be further investigated.
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