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  • Title: Long-term results of a prospective study on the treatment of medulloblastoma in adults.
    Author: Brandes AA, Franceschi E, Tosoni A, Blatt V, Ermani M.
    Journal: Cancer; 2007 Nov 01; 110(9):2035-41. PubMed ID: 17823910.
    Abstract:
    BACKGROUND: Because medulloblastoma (MB) is rare in adults, the few studies on this condition have been retrospective, and the follow-up has tended to be short. Furthermore, the different therapeutic strategies used in these patients has made it difficult to assess survival rates and prognostic factors. METHODS: In 1989, a prospective Phase II trial was initiated to evaluate the efficacy of treatment for adults with MB. Patients were staged completely with a neuroradiologic examination of the brain and neuroaxis and by cerebrospinal fluid cytology, according to Chang's staging system. Low-risk patients received radiotherapy alone, whereas high-risk patients received 2 cycles of upfront chemotherapy followed by radiotherapy and adjuvant chemotherapy. The current article reports on the long-term results from that trial. RESULTS: After a median follow up of 7.6 years, among a total of 36 adults with MB, the overall progression-free survival (PFS) and overall survival (OS) rates at 5 years were 72% and 75%, respectively. In low-risk patients, the 5-year PFS rate was 80%, and the 5-year OS rate was 80%; in high-risk patients, the 5-year PFS rate was 69%, and the 5-year OS rate was 73%. CONCLUSIONS: In adult patients with MB, long-term follow-up was essential for evaluating the real impact of treatments. Low-risk and high-risk patients did not differ significantly in terms of PFS or OS.
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