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  • Title: Malignant germ cell tumors in childhood: results of the first Italian cooperative study "TCG 91".
    Author: Lo Curto M, Lumia F, Alaggio R, Cecchetto G, Almasio P, Indolfi P, Siracusa F, Bagnulo S, De Bernardi B, De Laurentis T, Di Cataldo A, Tamaro P.
    Journal: Med Pediatr Oncol; 2003 Nov; 41(5):417-25. PubMed ID: 14515380.
    Abstract:
    BACKGROUND AND AIMS: About 20% of patients with germ cell tumor (GCT) are still resistant to therapy. To investigate which features are present in resistant patients, a multicenter study on GCT in children was undertaken to correlate clinical and laboratory parameters with the outcome. METHODS: Patients aged less than 16 years, with histologically proven extracranial GCT were included. RESULTS: Ninety-five patients (median age 33 months, 45 males) were eligible. The site of the primary tumor was gonadal in 59, extragonadal in 36. The stage was I in 39; II in 5; IIIa (microscopic residue) in 7; IIIb (macroscopic residue) in 16; IIIc (unresectable) in 13; IV in 15. The treatment was surgery alone in 31; surgery plus radiotherapy in 1; chemotherapy +/- surgery in 63. Post-chemotherapy resection in 19 (10 complete, 9 partial). The chemotherapy regimen was carboplatin 400 mg/m2/day on days 1, 2; etoposide 150 mg/m2/day on days 1, 2; ifosfamide 1,500 mg/m2/day on days 21, 22; dactinomycin 1.5 mg/m2/day on day 21; vincristine 1.5 mg/m2/day on day 21. Three patients died because of toxicity and two non-responders (to primary chemotherapy), died of progression; among the remaining 90 patients 20 relapsed, 9 are in second remission, 2 are alive with disease, and 9 died of disease progression (one from progression and intracranial hemorrhage). Overall survival was 82.7% and event-free survival: 71.5%. Survival according to: (a) site: testis: 100%; ovary: 88%; sacrococcyx: 69.6%; other sites: 33.3% (P < 0.001); (b) stage: I and II: 100%; IIIa: 83.3%; IIIb: 84.6%; IIIc: 60.6%; IV: 53.2% (P < 0.001); (c) AFP levels: normal: 85.5%; 42-9,470 ng/ml: 84.6%; >/=10,000 ng/ml: 58.7% (P = 0.02). All the pts who had complete resection of the primary tumor at diagnosis or at delayed surgery, remained in remission. CONCLUSIONS: Multivariate analysis showed that the primary site of tumor was the only independent prognostic factor for survival and EFS.
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