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@ARTICLE{Fangusaro:143857,
author = {J. Fangusaro and A. Onar-Thomas and T. Young Poussaint and
S. Wu and A. H. Ligon and N. Lindeman and A. Banerjee and R.
J. Packer and L. B. Kilburn and S. Goldman and I. F. Pollack
and I. Qaddoumi and R. I. Jakacki and P. G. Fisher and G.
Dhall and P. Baxter and S. G. Kreissman and C. F. Stewart
and D. T. W. Jones$^*$ and S. M. Pfister$^*$ and G. Vezina
and J. S. Stern and A. Panigrahy and Z. Patay and B. Tamrazi
and J. Y. Jones and S. S. Haque and D. S. Enterline and S.
Cha and M. J. Fisher and L. A. Doyle and M. Smith and I. J.
Dunkel and M. Fouladi},
title = {{S}elumetinib in paediatric patients with {BRAF}-aberrant
or neurofibromatosis type 1-associated recurrent,
refractory, or progressive low-grade glioma: a multicentre,
phase 2 trial.},
journal = {The lancet / Oncology Oncology},
volume = {20},
number = {7},
issn = {1470-2045},
address = {London},
publisher = {The Lancet Publ. Group},
reportid = {DKFZ-2019-01419},
pages = {1011-1022},
year = {2019},
abstract = {Paediatric low-grade glioma is the most common CNS tumour
of childhood. Although overall survival is good, disease
often recurs. No single universally accepted treatment
exists for these patients; however, standard cytotoxic
chemotherapies are generally used. We aimed to assess the
activity of selumetinib, a MEK1/2 inhibitor, in these
patients.The Pediatric Brain Tumor Consortium performed a
multicentre, phase 2 study in patients with paediatric
low-grade glioma in 11 hospitals in the USA. Patients aged
3-21 years with a Lansky or Karnofsky performance score
greater than 60 and the presence of recurrent, refractory,
or progressive paediatric low-grade glioma after at least
one standard therapy were eligible for inclusion. Patients
were assigned to six unique strata according to histology,
tumour location, NF1 status, and BRAF aberration status;
herein, we report the results of strata 1 and 3. Stratum 1
comprised patients with WHO grade I pilocytic astrocytoma
harbouring either one of the two most common BRAF
aberrations (KIAA1549-BRAF fusion or the BRAFV600E
[Val600Glu] mutation). Stratum 3 comprised patients with any
neurofibromatosis type 1 (NF1)-associated paediatric
low-grade glioma (WHO grades I and II). Selumetinib was
provided as capsules given orally at the recommended phase 2
dose of 25 mg/m2 twice daily in 28-day courses for up to 26
courses. The primary endpoint was the proportion of patients
with a stratum-specific objective response (partial response
or complete response), as assessed by the local site and
sustained for at least 8 weeks. All responses were reviewed
centrally. All eligible patients who initiated treatment
were evaluable for the activity and toxicity analyses.
Although the trial is ongoing in other strata, enrolment and
planned follow-up is complete for strata 1 and 3. This trial
is registered with ClinicalTrials.gov, number
NCT01089101.Between July 25, 2013, and June 12, 2015, 25
eligible and evaluable patients were accrued to stratum 1,
and between Aug 28, 2013, and June 25, 2015, 25 eligible and
evaluable patients were accrued to stratum 3. In stratum 1,
nine $(36\%$ $[95\%$ CI 18-57]) of 25 patients achieved a
sustained partial response. The median follow-up for the 11
patients who had not had a progression event by Aug 9, 2018,
was 36·40 months (IQR 21·72-45·59). In stratum 3, ten
$(40\%$ [21-61]) of 25 patients achieved a sustained partial
response; median follow-up was 48·60 months (IQR
39·14-51·31) for the 17 patients without a progression
event by Aug 9, 2018. The most frequent grade 3 or worse
adverse events were elevated creatine phosphokinase (five
$[10\%])$ and maculopapular rash (five $[10\%]).$ No
treatment-realted deaths were reported.Selumetinib is active
in recurrent, refractory, or progressive pilocytic
astrocytoma harbouring common BRAF aberrations and
NF1-associated paediatric low-grade glioma. These results
show that selumetinib could be an alternative to standard
chemotherapy for these subgroups of patients, and have
directly led to the development of two Children's Oncology
Group phase 3 studies comparing standard chemotherapy to
selumetinib in patients with newly diagnosed paediatric
low-grade glioma both with and without NF1.National Cancer
Institute Cancer Therapy Evaluation Program, the American
Lebanese Syrian Associated Charities, and AstraZeneca.},
cin = {B062 / B360},
ddc = {610},
cid = {I:(DE-He78)B062-20160331 / I:(DE-He78)B360-20160331},
pnm = {312 - Functional and structural genomics (POF3-312)},
pid = {G:(DE-HGF)POF3-312},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31151904},
doi = {10.1016/S1470-2045(19)30277-3},
url = {https://inrepo02.dkfz.de/record/143857},
}