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Study to Determine Safety, Pharmacokinetics, Pharmacodynamics of BAY73-4506 in Combination With mFOLFOX6 or FOLFIRI

ABSTRACT: This multi-center, open-label, non-randomized, non-placebo-controlled, Phase I study will define the safety profile and tumor response profile of the multi-kinase inhibitor BAY73-4506 as oral treatment in combination with the chemotherapy regimen mFOLFOX6 or FOLFIRI in patients with metastatic CRC. It will also determine the impact of the combined administration on the concentration of drugs over time (pharmacokinetics) of BAY73-4506, oxaliplatin, 5 FU, and irinotecan. This study will be conducted at approximately 5 - 8 study centers in Germany. Up to 60 patients will be enrolled into this study to ensute that at least 12 - 15 patients for each combination regimen can be evaluated for safety and pharmacokinetics. For this reason a minimum of 20 patients will receive mFOLFOX6 in combination with BAY73-4506 and at least 20 patients will receive FOLFIRI in combination with BAY73-4506.

DISEASE(S): Colorectal Cancer,Colorectal Neoplasms

PROVIDER: 2074811 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:In patients with advanced colorectal cancer, leucovorin, fluorouracil, and irinotecan (FOLFIRI) is considered as one of the reference first-line treatments. However, only about half of treated patients respond to this regimen, and there is no clinically useful marker that predicts response. A major clinical challenge is to identify the subset of patients who could benefit from this chemotherapy. We aimed to identify a gene expression profile in primary colon cancer tissue that could predict chemotherapy response. Patients and Methods:- Tumor colon samples from 21 patients with advanced colorectal cancer were analyzed for gene expression profiling using Human Genome GeneChip arrays U133. At the end of the first-line treatment, the best observed response, according to WHO criteria, was used to define the responders and nonresponders. Discriminatory genes were first selected by the significance analysis of microarrays algorithm and the area under the receiver operating characteristic curve. A predictor classifier was then constructed using support vector machines. Finally, leave-one-out cross validation was used to estimate the performance and the accuracy of the output class prediction rule. Results:- We determined a set of 14 predictor genes of response to FOLFIRI. Nine of nine responders (100% specificity) and 11 of 12 nonresponders (92% sensitivity) were classified correctly, for an overall accuracy of 95%. Conclusion:- After validation in an independent cohort of patients, our gene signature could be used as a decision tool to assist oncologists in selecting colorectal cancer patients who could benefit from FOLFIRI chemotherapy, both in the adjuvant and the first-line metastatic setting. All tissue samples were maintained at −180°C (liquid nitrogen) until RNA extraction and were weighed before homogenization. Tissue samples were then disrupted directly into a lysis buffer using Mixer Mill MM 300 (Qiagen, Valencia, CA). Total RNA was isolated from tissue lysates using the RNeasy Mini Kit (Qiagen), and additional DNAse digestion was performed on all samples during the extraction process (RNase-Free DNase Set Protocol for DNase treatment on RNeasy Mini Spin Columns; Qiagen). After each extraction, a small fraction of the total RNA preparation was taken to determine the quality of the sample and the yield of total RNA. Controls analyses were performed by UV spectroscopy and analysis of total RNA profile using the Agilent RNA 6000 Nano LabChip Kit with the Agilent 2100 Bioanalyser (Agilent Technologies, Palo Alto, CA) to determine RNA purity, quantity, and integrity.

Dataset Information

Study to Determine Safety, Pharmacokinetics, Pharmacodynamics of BAY73-4506 in Combination With mFOLFOX6 or FOLFIRI

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