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Berlin Brandenburg

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  • 1
    In: Pediatric Blood & Cancer, March 2018, Vol.65(3), pp.n/a-n/a
    Description: Infants with low‐grade glioma (LGG) and diencephalic syndrome have a poor outcome. The patient described here had a desmoplastic infantile astrocytoma harboring a BRAF V600E mutation. After relapse following initial standard chemotherapy treatment, he was successfully treated with the BRAF V600E inhibitor vemurafenib at the age of 3 years 11 months and 5 years 0 months. A rapid response was observed on both occasions. This illustrates the possibility of continuous oncogenic addiction and the therapeutic potential of BRAF V600E inhibitor monotherapy in LGG, even in very young severely compromised children. BRAF V600E inhibition in LGG and possible (re‐)treatment regimens are briefly discussed.
    Keywords: Braf V600e Inhibitor ; Child ; Desmoplastic Infantile Astrocytoma ; Infant ; Low‐Grade Glioma ; Vemurafenib
    ISSN: 1545-5009
    E-ISSN: 1545-5017
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  • 2
    In: Brain Pathology, July 2016, Vol.26(4), pp.506-516
    Description: The “pediatric targeted therapy” (PTT) program aims to identify the presence and activity of druggable targets and evaluate the clinical benefit of a personalized treatment approach in relapsed or progressive tumors on an individual basis. 10 markers (HDAC2, HR23B, p‐AKT, p‐ERK, p‐S6, p‐EGFR, PDGFR‐alpha/beta, p53 and BRAFV600E) were analyzed by immunohistochemistry. Pediatric patients with tumors independent of the histological diagnosis, with relapse or progression after treatment according to standard protocols were included.  = 61/145 (42%) cases were eligible for analysis between 2009 and 2013, the most common entities being brain tumors. Immunohistochemical stainings were evaluated by the ‐Score (0–300). In 93% of the cases potentially actionable targets were identified. The expressed or activated pathways were histone deacetylase (HDACs; 83.0% of cases positive), EGFR (87.2%), PDGFR (75.9%), p53 (50.0%), MAPK/ERK (43.3%) and PI3K/mTOR (36.1%). Follow‐up revealed partial or full implementation of PTT results in treatment decision‐making in 41% of the cases. Prolonged disease stabilization responses in single cases were noticed, however, response rates did not differ from cases treated with other modalities. Further studies evaluating the feasibility and clinical benefit of personalized diagnostic approaches using paraffin material are warranted.
    Keywords: Brain Tumors ; Pediatric Oncology ; Personalized Medicine ; Targeted Therapy ; Relapsed Childhood Tumors ; Predictive Markers
    ISSN: 1015-6305
    E-ISSN: 1750-3639
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