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@ARTICLE{Menzer:147211,
author = {C. Menzer and A. M. Menzies and M. S. Carlino and I.
Reijers and E. J. Groen and T. Eigentler and J. W. B. de
Groot and A. A. M. van der Veldt and D. B. Johnson and F.
Meiss and M. Schlaak and B. Schilling and H. M. Westgeest
and R. Gutzmer and C. Pföhler and F. Meier and L. Zimmer
and K. P. M. Suijkerbuijk and T. Haalck and K.-M. Thoms and
K. Herbschleb and J. Leichsenring and A. Menzer and A.
Kopp-Schneider$^*$ and G. V. Long and R. Kefford and A. Enk
and C. U. Blank and J. C. Hassel},
title = {{T}argeted {T}herapy in {A}dvanced {M}elanoma {W}ith {R}are
{BRAF} {M}utations.},
journal = {Journal of clinical oncology},
volume = {37},
number = {33},
issn = {1527-7755},
address = {Alexandria, Va.},
publisher = {American Society of Clinical Oncology},
reportid = {DKFZ-2019-02337},
pages = {3142-3151},
year = {2019},
note = {37(33):3142-3151},
abstract = {BRAF/MEK inhibition is a standard of care for patients with
BRAF V600E/K-mutated metastatic melanoma. For patients with
less frequent BRAF mutations, however, efficacy data are
limited.In the current study, 103 patients with metastatic
melanoma with rare, activating non-V600E/K BRAF mutations
that were treated with either a BRAF inhibitor (BRAFi), MEK
inhibitor (MEKi), or the combination were included. BRAF
mutation, patient and disease characteristics, response, and
survival data were analyzed.Fifty-eight patient tumors
$(56\%)$ harbored a non-E/K V600 mutation, 38 $(37\%)$ a
non-V600 mutation, and seven had both V600E and a rare BRAF
mutation $(7\%).$ The most frequent mutations were V600R
$(43\%;$ 44 of 103), L597P/Q/R/S $(15\%;$ 15 of 103), and
K601E $(11\%;$ 11 of 103). Most patients had stage IV
disease and $42\%$ had elevated lactate dehydrogenase at
BRAFi/MEKi initiation. Most patients received combined
BRAFi/MEKi $(58\%)$ or BRAFi monotherapy $(37\%).$ Of the 58
patients with V600 mutations, overall response rate to BRAFi
monotherapy and combination BRAFi/MEKi was $27\%$ (six of
22) and $56\%$ (20 of 36), respectively, whereas median
progression-free survival (PFS) was 3.7 months and 8.0
months, respectively (P = .002). Of the 38 patients with
non-V600 mutations, overall response rate was $0\%$ (zero of
15) to BRAFi, $40\%$ (two of five) to MEKi, and $28\%$ (five
of 18) to combination treatment, with a median PFS of 1.8
months versus 3.7 months versus 3.3 months, respectively.
Multivariable analyses revealed superior survival (PFS and
overall survival) with combination over monotherapy in rare
V600 and non-V600 mutated melanoma.Patients with rare BRAF
mutations can respond to targeted therapy, however, efficacy
seems to be lower compared with V600E mutated melanoma.
Combination BRAFi/MEKi seems to be the best regimen for both
V600 and non-V600 mutations. Yet interpretation should be
done with care because of the heterogeneity of patients with
small sample sizes for some of the reported mutations.},
cin = {C060},
ddc = {610},
cid = {I:(DE-He78)C060-20160331},
pnm = {313 - Cancer risk factors and prevention (POF3-313)},
pid = {G:(DE-HGF)POF3-313},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31580757},
doi = {10.1200/JCO.19.00489},
url = {https://inrepo02.dkfz.de/record/147211},
}