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ZN-c3 in Adult Participants With Metastatic Colorectal Cancer

ABSTRACT: The purpose of this study is to evaluate the safety, tolerability, and potential clinical benefits of ZN-c3 administered in combination with encorafenib and cetuximab in adult participants with metastatic BRAF V600E mutant colorectal cancer previously treated with one or two treatment regimens.

DISEASE(S): Metastatic Colorectal Cancer,Colorectal Neoplasms

PROVIDER: 9490 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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A Study Evaluating the Combination of Encorafenib and Cetuximab Versus Irinotecan/Cetuximab or Infusional 5-fluorouracil (5-FU)/Folinic Acid (FA)/Irinotecan (FOLFIRI)/Cetuximab in Chinese Patients With BRAF V600E Mutant Metastatic Colorectal Cancer.

Project description:Encorafenib is currently being developed (with or without binimetinib), in combination with cetuximab, for the treatment of adult patients with B-RAF proto-oncogene, serine/threonine kinase V600E mutant (BRAF V600E) metastatic colorectal cancer (mCRC), who have received prior systemic therapy.

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International multicenter study to test the use of 3 combined targeted therapy drugs for Colorectal cancer (encorafenib, binimetinib and cetuximab) in subjects with mutant Metastatic Colorectal Cancer

Project description:Main Objective: To evaluate the antitumor activity of the combination of encorafenib, binimetinib and cetuximab by assessing the confirmed overall response rate (cORR) by local radiologist/investigator assessment in adult subjects with previously untreated BRAF V600E-mutant (BRAFV600E) metastatic colorectal cancer (mCRC). Primary end point(s): cORR as assessed by local radiologist/investigator review as per Response Evaluation Criteria in Solid Tumors (RECIST 1.1).

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Tolerability and Safety of Vemurafenib, Cetuximab Combined With Camrelizumab for BRAF V600E-mutated /MSS Metastatic Colorectal Cancer

Project description:BRAF mutation exists in about 10-12% of colorectal cancer, among which BRAF V600E mutation is the most common type, which is an important biomarker for predicting the prognosis and precise treatment efficacy of metastatic colorectal cancer (mCRC). The prognosis of metastatic colorectal cancer with BRAF V600E mutation is very poor, with OS of about 6-9 months. Previous studies have shown that single anti-BRAF inhibitor are ineffective, while multi-target inhibitions of Ras-Raf -MEK pathway is a possible effective strategy for BRAF V600E-mutant mCRC. Currently, the proven effective regimens include the VIC regimen (Vemurafenib + cetuximab + Irinotecan) and BEACON regimen (Encorafenib+ cetuximab +/- Binimetinib) from the SWOGS1406 study. Furthermore, BRAF inhibitor +MEK inhibitor combined with PD-1 monoclonal antibody has been shown to be an effective strategy in BRAF V600E-mutant malignant melanoma, which promote the study of the regimens for the treatment of BRAF V600E-mutant mCRC. Increasing basic and clinical studies have shown that cetuximab has ADCC effect, induces immunogenic cell death, promotes immune cell infiltration and other immunomodulatory effects, and has a synergistic effect with PD-1 monoclonal antibody in colorectal cancer. Based on those theories, we conducted the phase I study to explore the safety and preliminary efficacy of the regimen of Vemurafenib (BRAFi) plus cetuximab (EGFRi) combined with PD-1 monoclonal antibody in BRAF V600E-mutant /MSS type mCRC.

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3' RNAseq of EGFR mutant lung cancer cell line overexpressing BRAF V600E treated with inhibitors

Project description:In the human EGFR mutant adenocarcinoma cell line PC9 pBabe empty vector (EV) or BRAF V600E were overexpressed. RNA was extracted from EV, BRAF V600E overexpressing or osimertinib-resistant BRAF V600E expressing cells after 48h treatment with osimertinib, trametinib, a combination of both or vehicle controls. RNA was subjected to 3' UTR RNA sequencing.

2021-10-20 | E-MTAB-11004 | biostudies-arrayexpress

Novel prognostic implications of complement activation in the tumor microenvironment for de novo metastatic BRAF V600E mutant colorectal cancer

Project description:Prognosis of metastatic BRAF V600E mutant colorectal cancer (CRC) is poor, and the prognostic implications of immune contextures in the tumor microenvironment (TME) for CRC remain elusive. Complement activation in the TME was significantly associated with poor OS and was correlated with TAM M2 in patients with de novo metastatic BRAF V600E mutant CRC.

2022-11-08 | GSE211576 | GEO

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2024-03-03 | GSE226815 | GEO

RNA sequencing of low grade neuroepithelial tumors associated with epilepsy

Project description:Low grade neuroepithelial tumor is the major cause of epilepsy Low-grade neuroepithelial tumors are major causes of drug-resistant focal epilepsy. The BRAF V600E mutation is frequently observed in low grade neuroepithelial tumor and linked to poor seizure outcomes. However, its molecular role in epileptogenicity remains elusive. To understand the molecular mechanism underlying the epileptogenicity in LEAT with the BRAF V600E genetic mutation (BRAF V600E-LEAT), we conducted RNA sequencing (RNA-seq) analysis using surgical specimens of BRAF V600E-LEAT obtained and stored at a single institute. bioinformatics analysis using this dataset identified 2,134 differentially expressed genes between BRAF V600E-LEAT and control. Additionally, gene set enrichment analysis provided novel insights into the association between estrogen response-related pathways and the epileptogenicity of BRAF V600E-LEAT patients.

2024-01-02 | GSE252323 | GEO

Methylation profiling of adult astroblastoma

Project description:Aims and methods: astroblastoma is a rare glial brain tumor with singular morphology. Recurrent MN1-BEND2 fusions have been recently identified in most of pediatric cases. Adolescent and adult cases, however, remain molecularly poorly defined. Here, we performed clinical and molecular characterization of a retrospective cohort of 14 adult and one adolescent gliomas with astroblastic features. Results: strikingly, we found MN1 fusions a rare event in this age group (1/15). Using methylation profiling and targeted sequencing, most cases were reclassified as either pleomorphic xanthoastrocytomas (PXA) or high-grade glioma (HGG). PXA-like ABM show BRAF mutation (6/7 with V600E mutation and 1/7 with G466E mutation) and CD34 expression. Conversely, HGG-like ABM harbored specific mutations of diffuse midline glioma (2/5) or glioblastoma (3/5). These latter patients showed an unfavorable clinical course with significantly shorter overall survival (p = 0.027). MAPK pathway alterations (including FGFR fusion, BRAF and NF1 mutations) were present in 10 of 15 patients and overrepresented in the HGG group (3/5) compared to previously reported prevalence of these alterations in GBM and diffuse midline glioma. Conclusion: We suggest that astroblastoma comprises a variety of molecularly sharply defined entities. Adults’ astroblastomas harboring molecular features of PXA and HGG should be reclassified. CNS high-grade neuroepithelial tumors with MN1 alterations appears to be a truly pediatric entity and is uncommon in adult cases with a histology of astroblastoma. Astroblastic morphology in adults should thus prompt thorough molecular investigation aiming at a clear histomolecular diagnosis and identifying actionable drug targets, especially in MAPK pathway.

2019-03-22 | E-MTAB-7490 | biostudies-arrayexpress

Transcriptional effect of ETV1 knockdown in melanoma cells

Project description:ETV1 is amplified in a subset of melanomas. Here, we performed RNA-seq on two BRAF V600E mutant melonoma cell lines transduced with a scrambed shRNA and two individual ETV1 shRNA

2018-04-15 | GSE80352 | GEO

Gene expression changes induced by transgenic expression of CCDC6-RET or BRAF(V600E) oncogenes in zebrafish thyroid tumors [Zebrafish RET vs BRAF adult tumors]

Project description:We used RNAseq to examine gene expression changes in thyroid tumors arising in transgenic zebrafish engineered to expression human CCDC6-RET or BRAF(V600E) oncogenes

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