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@ARTICLE{Mynarek:153356,
author = {Mynarek, Martin and von Hoff, Katja and Pietsch, Torsten
and Ottensmeier, Holger and Warmuth-Metz, Monika and Bison,
Brigitte and Pfister, Stefan and Korshunov, Andrey and
Sharma, Tanvi and Jaeger, Natalie and Ryzhova, Marina and
Zheludkova, Olga and Golanov, Andrey and Rushing, Elisabeth
Jane and Hasselblatt, Martin and Koch, Arend and Schüller,
Ulrich and von Deimling, Andreas and Sahm, Felix and Sill,
Martin and Riemenschneider, Markus J. and Dohmen, Hildegard
and Monoranu, Camelia Maria and Sommer, Clemens and
Staszewski, Ori and Mawrin, Christian and Schittenhelm, Jens
and Brück, Wolfgang and Filipski, Katharina and Hartmann,
Christian and Meinhardt, Matthias and Pietschmann, Klaus and
Haberler, Christine and Slavc, Irene and Gerber, Nicolas U.
and Grotzer, Michael and Benesch, Martin and Schlegel, Paul
Gerhardt and Deinlein, Frank and von Bueren, André O. and
Friedrich, Carsten and Juhnke, Björn-Ole and Obrecht,
Denise and Fleischhack, Gudrun and Kwiecien, Robert and
Faldum, Andreas and Kortmann, Rolf Dieter and Kool, Marcel
and Rutkowski, Stefan},
title = {{N}onmetastatic {M}edulloblastoma of {E}arly {C}hildhood:
{R}esults {F}rom the {P}rospective {C}linical {T}rial
{HIT}-2000 and {A}n {E}xtended {V}alidation {C}ohort},
journal = {Journal of clinical oncology},
volume = {38},
number = {18},
issn = {1527-7755},
address = {Alexandria, Va.},
publisher = {American Society of Clinical Oncology},
reportid = {DZNE-2020-01353},
pages = {2028 - 2040},
year = {2020},
abstract = {PURPOSEThe HIT-2000-BIS4 trial aimed to avoid highly
detrimental craniospinal irradiation (CSI) in children < 4
years of age with nonmetastatic medulloblastoma by systemic
chemotherapy, intraventricular methotrexate, and
risk-adapted local radiotherapy.PATIENTS AND METHODSFrom
2001-2011, 87 patients received systemic chemotherapy and
intraventricular methotrexate. Until 2006, CSI was reserved
for nonresponse or progression. After 2006, local
radiotherapy was introduced for nonresponders or patients
with classic medulloblastoma (CMB) or large-cell/anaplastic
medulloblastoma (LCA). DNA methylation profiles of infantile
sonic hedgehog-activated medulloblastoma (SHH-INF) were
subdivided into iSHH-I and iSHH-II subtypes in the
HIT-2000-BIS4 cohort and a validation cohort (n = 71) from
the HIT group and Russia.RESULTSFive years after diagnosis,
patients with desmoplastic medulloblastoma (DMB) or
medulloblastoma with extensive nodularity (MBEN; n = 42) had
$93\%$ progression-free survival (5y-PFS), $100\%$ overall
survival (5y-OS), and $93\%$ CSI-free (5y-CSI-free)
survival. Patients with CMB/LCA (n = 45) had $37\%$ 5y-PFS,
$62\%$ 5y-OS, and $39\%$ 5y-CSI-free survival. Local
radiotherapy did not improve survival in patients with
CMB/LCA. All DMB/MBEN assessed by DNA methylation profiling
belonged to the SHH-INF subgroup. Group 3 patients (5y-PFS,
$36\%;$ n = 14) relapsed more frequently than the SHH-INF
group (5y-PFS, $93\%;$ n = 28) or group 4 patients (5y-PFS,
$83\%;$ n = 6; P < .001). SHH-INF split into iSHH-I and
iSHH-II subtypes in HIT-2000-BIS4 and the validation cohort,
without prognostic impact (5y-PFS: iSHH-I, $73\%,$ v
iSHH-II, $83\%;$ P = .25; n = 99). Intelligence quotient
(IQ) was significantly lower in patients after CSI (mean IQ,
90 [no radiotherapy], v 74 [CSI]; P =
.012).CONCLUSIONSystemic chemotherapy and intraventricular
methotrexate led to favorable survival in both iSHH subtypes
of SHH-activated DMB/MBEN with acceptable neurotoxicity.
Survival in patients with non-wingless (WNT)/non-SHH disease
with CMB/LCA was not improved by local radiotherapy.
Patients with group 4 disease had more favorable survival
rates than those with group 3 medulloblastoma.},
keywords = {Cerebellar Neoplasms: drug therapy / Cerebellar Neoplasms:
mortality / Cerebellar Neoplasms: radiotherapy / Child,
Preschool / Cranial Irradiation: adverse effects / DNA
Methylation / Female / Humans / Infant / Male /
Medulloblastoma: drug therapy / Medulloblastoma: mortality /
Medulloblastoma: radiotherapy / Methotrexate: administration
$\&$ dosage / Neuropsychological Tests / Prospective
Studies},
cin = {Brainbank Unit Bonn},
ddc = {610},
cid = {I:(DE-2719)1011009},
pnm = {344 - Clinical and Health Care Research (POF3-344)},
pid = {G:(DE-HGF)POF3-344},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:32330099},
doi = {10.1200/JCO.19.03057},
url = {https://pub.dzne.de/record/153356},
}