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Study of Selumetinib (AZD6244)(ARRY-142886) in Combination With Irinotecan in Previously Treated Patients With Colorec

ABSTRACT: The purpose of this study is to determine whether treatment with Selumetinib (AZD6244) (Hyd-Sulfate) in combination with Irinotecan as a second treatment in patients with K-ras or B-raf mutation will prevent tumor progression and prolong progression free survival.

DISEASE(S): Colorectal Cancer,Colorectal Neoplasms

PROVIDER: 2088566 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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A Study to Assess the Safety, Tolerability and Anti-tumour Activity of Ascending Doses of Selumetinib in Combination With MEDI4736 and Selumetinib in Combination With MEDI4736 and Tremelimumab in Patients With Advanced Solid Tumours

Project description:This is a Phase I, open-label, multi-centre, drug combination study of double and triple combination oral selumetinib (AZD6244 Hyd-sulfate) plus intravenous (IV) MEDI4736 and oral selumetinib plus IV MEDI4736 and IV tremelimumab in patients with advanced solid tumours.

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Gene expression profiling during treatment of HT29 cells with selumetinib

Project description:Here, we investigate gene expression response of the BRAFV600E mutant cell line COLO205 to the MEK inhibitor selumetinib / AZD6244 / ARRY-142886. Although selumetinib causes long term G1 arrest, we observe cells stochastically entering the cell cycle without re-activation of ERK and initiation of a normal proliferative gene expression programme. Genes encoding DNA replication and repair factors are downregulated during G1 arrest, but many of these are transiently induced when cells escaping arrest enter S and G2. Nonetheless, mRNAs encoding key DNA replication factors including the MCM replicative helicase complex, PCNA and TIPIN remain at very low abundance.

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Gene expression profiling during treatment of COLO205 cells with selumetinib

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Project description:Here, we investigate focal amplification patterns in and around the BRAF locus in BRAFV600Emutant COLO205 cells that acquire resistance to the MEK inhibitor Sleumetinib / AZD6244 / ARRY-142886. We find that BRAF amplifications occur frequently in COLO205 cells during acquisition of selumetinib resistance and that BRAFamplifications pre-exist selumetinib treatment but occurs predominantly via de novo mutations

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Copy number analysis of selumetinib-resistant CRC cells lines

Project description:Copy number analysis to compare parental colorectal cancer cell lines and their selumetinib-resistant derivatives and identify gene copy changes that might contribute to resistance

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Gene expression profiling of MDA231, BT549, and SUM159PT cells after selumetinib treatment or DUSP4 siRNA knockdown

Project description:MDA231, BT549, and SUM159PT basal-like breast cancer cell lines were transfected with non-targeting siRNA (siCONTROL), siRNA targeting DUSP4 (siDUSP4), or siCONTROL + 4 or 24 hr of 1uM selumetinib. Cells were harvested at 96 hr post-siRNA transfection. Data were Log2 RMA normalized. We sought to identify changes in gene expression after MEK inhibition, or after loss of DUSP4 function in breast cancer cell lines.

2013-09-03 | E-GEOD-41816 | biostudies-arrayexpress

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