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- W2014509538 abstract "Erdheim-Chester disease is a rare histiocytosis characterized by multi-systemic organ involvement. Immune-modulating agents such as interferon-alpha have limited success and the disorder is progressive and causes high morbidity and mortality. Treatment with the BRAF-inhibitor vemurafenib has recently produced substantial improvement in three patients with Erdheim-Chester disease expressing the p. V600E BRAF mutation. The disorder commonly affects the central nervous system and it is not yet known whether vemurafenib can reverse intra-axial infiltration and the resulting neurological impairment.In this work, we report for the first time an excellent clinical response to vemurafenib in a Norwegian patient with debilitating progressive spastic paraparesis due to intra-axial infiltration of the thoracic spinal cord. The patient had been unresponsive to interferon-alpha. Low dose vemurafenib (720 mg daily) for a period of three months resulted in significant tumor shrinkage by >60% and regression of contrast enhancement and fluorodeoxyglucose uptake on positron-emission tomography. The patient's spastic paraparesis and gait function improved dramatically. She currently walks unaided and reports a substantially improved quality of life.Our findings show that vemurafenib therapy, even at low doses, can be effective for the treatment of intra-axial central nervous system involvement in BRAF-positive Erdheim-Chester disease." @default.
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- W2014509538 date "2015-04-30" @default.
- W2014509538 modified "2023-10-10" @default.
- W2014509538 title "Excellent response of intramedullary Erdheim-Chester disease to vemurafenib: a case report" @default.
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- W2014509538 doi "https://doi.org/10.1186/s13104-015-1135-7" @default.
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