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V600E is a mutation of the BRAF gene in which valine (V) is substituted by glutamic acid (E) at amino acid 600. [1] [2] It is a driver mutation in a proportion of certain diagnoses, including melanoma, [3] [4] hairy cell leukemia, [5] [6] papillary thyroid carcinoma, [7] [8] colorectal cancer, [9] non-small-cell lung cancer, [10] [11] Langerhans cell histiocytosis, [12] Erdheim–Chester ...
Vemurafenib interrupts the B-Raf/MEK step on the B-Raf/MEK/ERK pathway − if the B-Raf has the common V600E mutation. Vemurafenib only works in melanoma patients whose cancer has a V600E BRAF mutation (that is, at amino acid position number 600 on the B-Raf protein, the normal valine is replaced by glutamic acid). [4] About 60% of melanomas ...
Dabrafenib is indicated as a single agent for the treatment of people with unresectable or metastatic melanoma with BRAF V600E mutation. [2] Dabrafenib is indicated, in combination with trametinib, for BRAF V600E-positive unresectable or metastatic melanoma, metastatic non-small cell lung cancer, metastatic anaplastic thyroid cancer, and unresectable or metastatic solid tumors.
The company presented three-year follow-up data from a Phase 2 study on Saturday looking at patients with BRAF V600E-mutant metastatic non-small cell lung cancer who received Braftovi and another ...
Cobimetinib or XL518, approved by US FDA in Nov 2015 for use in combination with vemurafenib (Zelboraf(R)), for treatment of advanced melanoma with a BRAF V600E or V600K mutation. Selumetinib , had a phase 2 clinical trial for non-small cell lung cancer (NSCLC) which demonstrated an improvement in PFS, [ 5 ] and is now in phase III development ...
B-Raf is a 766-amino acid, regulated signal transduction serine/threonine-specific protein kinase.Broadly speaking, it is composed of three conserved domains characteristic of the Raf kinase family: conserved region 1 (CR1), a Ras-GTP-binding [11] self-regulatory domain, conserved region 2 (CR2), a serine-rich hinge region, and conserved region 3 (CR3), a catalytic protein kinase domain that ...
BRAF kinase inhibitor. BRAF kinase mutation V600E-positive Metastatic melanoma. Skin reactions, secondary malignancies (mostly squamous cell carcinoma), anaphylaxis (rare) and hypotension (rare). Abbreviations/Acronyms: IM – Intramuscular. IV – Intravenous. IA – Intra-arterial. SC – Subcutaneous. PO – Per os, oral. IP – Intrapleural.
In June 2018, the FDA approved the combination of a BRAF inhibitor encorafenib and a MEK inhibitor binimetinib for the treatment of un-resectable or metastatic melanoma with a BRAF V600E or V600K mutation. [186] Eventual resistance to BRAF and MEK inhibitors may be due to a cell surface protein known as EphA2 which is now being investigated. [187]
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