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Lookup NU author(s): Professor Hermann Josef Vormoor
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PURPOSE: In the Non-Hodgkin's Lymphoma-Berlin-Frankfurt-Munster (NHL-BFM) 95 trial, we tested, against the historical control of the combined trials NHL-BFM90 and NHL-BFM86, whether prophylactic cranial radiotherapy (PCRT) can be omitted for CNS-negative patients with stage III or IV lymphoblastic lymphoma (LBL) with sufficient early response. PATIENTS AND METHODS: Apart from the removal of PCRT in NHL-BFM95, the chemotherapy of the three trials was identical except for the amount of l-asparaginase and daunorubicin during induction. The therapy in NHL-BFM95 was accepted to be noninferior when compared with trials NHL-BFM90/86 if the lower limit of the one-sided 95% CI for the difference in the 2-year probability of event-free-survival (pEFS) between target patients of NHL-BFM95 and the historical controls of NHL-BFM90/86 did not exceed -14%. The target patient group consisted of stage III and IV patients who were CNS negative and responded well to induction therapy. RESULTS: The number of target patients was 156 in NHL-BFM95 (median age, 8.6 years; range, 0.2 to 19.5 years) and 163 in NHL-BFM90/86 (median age, 8.4 years; range, 0.6 to 16.6 years). For the target group, the pEFS rates at 2 and 5 years were 86% +/- 3% and 82% +/- 3%, respectively, in NHL-BFM95 (median follow-up time, 5.1 years; range, 2.1 to 9.1 years) compared with 91% +/- 2% and 88% +/- 3%, respectively in NHL-BFM90/86 (median follow-up time, 10.7 years; range, 5 to 15.4 years). The lower limit of the one-sided 95% CI for the difference in pEFS was -11% at 2 years and -13% at 5 years. In NHL-BFM95, one isolated and two combined CNS relapses occurred compared with one combined CNS relapse in NHL-BFM90/86. Five-year disease-free-survival rate was 88% +/- 3% in NHL-BFM95 compared with 91% +/- 2% in NHL-BFM90/86. CONCLUSION: For CNS-negative patients with stage III or IV LBL and sufficient response to induction therapy, treatment without PCRT may be noninferior to treatment including PCRT.
Author(s): Burkhardt B, Woessmann W, Zimmermann M, Kontny U, Vormoor J, Doerffel W, Mann G, Henze G, Niggli F, Ludwig WD, Janssen D, Riehm H, Schrappe M, Reiter A
Publication type: Article
Publication status: Published
Journal: Journal of Clinical Oncology
Year: 2006
Volume: 24
Issue: 3
Pages: 491-499
Print publication date: 20/01/2006
ISSN (print): 0732-183X
ISSN (electronic): 1527-7755
URL: http://dx.doi.org/10.1200/JCO.2005.02.2707
DOI: 10.1200/JCO.2005.02.2707
Notes: 1527-7755 (Electronic) Controlled Clinical Trial Journal Article
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