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Description
| - Background. The impact of preventive central nervous system irradiation (CNS-RT) in childhood acute myeloid leukemia (AML) is still discussed. As results of study AML-BFM87 revealed an increased risk for relapse when CNS-RT was not performed, studies AML-BFM98 and -2004 randomized CNS-RT of 18 or 12 Gy in order to evaluate the efficacy of the lower dose and to reduce late effects. Procedures. To achieve a power of 80% for non-inferiority (range 11%) 240 patients per group were required. Out of 722 eligible patients, 486 patients < 18 years were randomized to receive 12 Gy (n = 249) or 18 Gy (n = 237). Since this was a non-inferiority study, the analysis was performed for treated (12 Gy: n = 252 and 18 Gy: n = 219). Results. Five-year survival, event-free survival and cumulative incidence of relapse were similar in patients who received 12 or 18 Gy, respectively (82 +/- 3% vs. 79 +/- 3%, 68 +/- 3% vs. 63 +/- 3%, and 30 +/- 3% vs. 34 +/- 3%). The lower limit of the one-sided confidence interval for the 5% difference in 5-years pEFS was 2%. There were six relapses with CNS involvement (one in the 12 Gy, and five in the 18 Gy group). Conclusion. Results demonstrate no disadvantage for patients irradiated with a reduced CNS dose of 12 Gy.
- Background. The impact of preventive central nervous system irradiation (CNS-RT) in childhood acute myeloid leukemia (AML) is still discussed. As results of study AML-BFM87 revealed an increased risk for relapse when CNS-RT was not performed, studies AML-BFM98 and -2004 randomized CNS-RT of 18 or 12 Gy in order to evaluate the efficacy of the lower dose and to reduce late effects. Procedures. To achieve a power of 80% for non-inferiority (range 11%) 240 patients per group were required. Out of 722 eligible patients, 486 patients < 18 years were randomized to receive 12 Gy (n = 249) or 18 Gy (n = 237). Since this was a non-inferiority study, the analysis was performed for treated (12 Gy: n = 252 and 18 Gy: n = 219). Results. Five-year survival, event-free survival and cumulative incidence of relapse were similar in patients who received 12 or 18 Gy, respectively (82 +/- 3% vs. 79 +/- 3%, 68 +/- 3% vs. 63 +/- 3%, and 30 +/- 3% vs. 34 +/- 3%). The lower limit of the one-sided confidence interval for the 5% difference in 5-years pEFS was 2%. There were six relapses with CNS involvement (one in the 12 Gy, and five in the 18 Gy group). Conclusion. Results demonstrate no disadvantage for patients irradiated with a reduced CNS dose of 12 Gy. (en)
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Title
| - CNS Irradiation in Pediatric Acute Myleoid Leukemia: Equal Results by 12 or 18 Gy in Studies AML-BFM98 and 2004
- CNS Irradiation in Pediatric Acute Myleoid Leukemia: Equal Results by 12 or 18 Gy in Studies AML-BFM98 and 2004 (en)
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skos:prefLabel
| - CNS Irradiation in Pediatric Acute Myleoid Leukemia: Equal Results by 12 or 18 Gy in Studies AML-BFM98 and 2004
- CNS Irradiation in Pediatric Acute Myleoid Leukemia: Equal Results by 12 or 18 Gy in Studies AML-BFM98 and 2004 (en)
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skos:notation
| - RIV/00064203:_____/11:7275!RIV12-MZ0-00064203
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00064203:_____/11:7275
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - AML; clinical trials; leukemia; molecular diagnosis and therapy; outcomes research; radiation therapy (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Bourquin, J. P.
- Creutzig, U.
- Dworzak, MN
- Fleischhack, G.
- Reinhardt, D.
- Ritter, J.
- Sander, A.
- Schrauder, A.
- Starý, Jan
- Zimmermann, M.
- von Neuhoff, C.
- von Stackelberg, A.
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http://linked.open...ain/vavai/riv/wos
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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