Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

ANGIOPREDICT. ICORG 12-16, V3

ABSTRACT: Primary Objective: The primary objective is to validate previously identified predictive/prognostic genomic DNA and expression biomarkers of response to combination bvz treatments in K-ras mutant advanced CRC (a CRC) or metastatic CRC (mCRC). Secondary Objective: 1. To test the efficacy of bvz in combination with FOLFOX in patients with newly diagnosed advanced or metastatic K-ras mutant CRC and 2. To determine the progression free and overall survival of patients under first line FOLFOX + bvz in aCRC or mCRC.

DISEASE(S): Colon Cancer,Colorectal Cancer,Colorectal Neoplasms,Advanced Colorectal Cancer

PROVIDER: 2142430 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

ACCESS DATA

Json Xml

Similar Datasets

Single-Cell Analysis Reveals Cellular Reprogramming in Advanced Colon Cancer Following FOLFOX-Bevacizumab Treatment

Project description:The combination of FOLFOX and bevacizumab (FOLFOX-Bev) is a promising treatment for advanced colorectal cancer (CRC). To gain insights into the cellular changes associated with FOLFOX-Bev treatment, we conducted single-cell transcriptomic analysis of CRC samples derived from a patient before and after treatment. Our results show that cancer cells with high proliferative, metastatic, and pro-angiogenic properties respond better to FOLFOX-Bev treatment. Moreover, FOLFOX-Bev enhances CD8+ T cell cytotoxicity, thereby boosting the anti-tumor immune response. Conversely, FOLFOX-Bev impairs the functionality of tumor-associated macrophages, plasma cells, and cancer-associated fibroblasts, leading to a decrease in VEGFB-mediated angiogenesis. Furthermore, FOLFOX-Bev treatment reset intercellular communication, which could potentially affect the function of non-cancer cells. Our findings provide valuable insights into the molecular mechanisms underlying the response of advanced CRC to FOLFOX-Bev treatment and highlight potential targets for improving the efficacy of this treatment strategy.

2023-07-20 | GSE232525 | GEO

First-line durvalumab and tremelimumab with chemotherapy in RAS-mutated metastatic colorectal cancer: a phase 1b/2 trial [RNA-Seq]

Project description:While patients with microsatellite instable, metastatic colorectal cancer (CRC) benefit from immune checkpoint blockade, chemotherapy with targeted therapies remains the only therapeutic option for microsatellite stable (MSS) tumors. The single arm, phase IB/II MEDITREME trial evaluates safety and efficacy of durvalumab plus tremelimumab in combination with mFOLFOX6 chemotherapy in first line, in 57 patients with RAS-mutant unresectable mCRC. Safety was primary objective of phase IB and no safety issue was observed. The primary objective of phase II was efficacy in terms of 3-month PFS in MSS patients, which was met with a 3 month PFS of 90.7% [95% CI: 79.2-96%]. For secondary objective, response rate was 64.5%, median PFS was 8.2 months [95% CI: 5.9–8.6] and overall survival was not reached in MSS patients. Higher tumor mutational burden and a lower degree of genomic instability in responder patients. Integrated transcriptomic analysis underlined that high immune signature, and low epithelio-mesenchymal transition were associated with better outcome. Immunomonitoring showed induction of neoantigen and NY-ESO1 and TERT blood tumor specific T cell response associated with better PFS. The combination of durvalumab-tremelimumab with mFOLFOX6 was tolerable with promising clinical activity in MSS mCRC.

2023-07-05 | GSE235919 | GEO

First-line durvalumab and tremelimumab with chemotherapy in RAS-mutated metastatic colorectal cancer: a phase 1b/2 trial [scRNA-Seq]

2023-07-05 | GSE235917 | GEO

A plastic EMP1⁺ to LGR5⁺ cell state conversion as a therapeutic bypass to KRAS-G12D inhibition in metastatic colorectal cancer [RNA-Seq human]

Project description:Inhibitors of the oncogene KRAS holds promise for treating metastatic CRC (mCRC). Here we show that the activity of a small molecule RAS inhibitor, RM-044, which covalently binds to the G12D mutation in the active (ON) conformation of RAS, demonstrated strong curative effects in CRC models of early liver metastases, but its therapeutic activity was diminished in the advanced metastatic disease. RM-044-treated metastases underwent a fast transition from a poor-prognosis-associated Emp1⁺ transcriptional cell state to a WNT-driven Lgr5⁺ stem cell-like state that supported tumor growth in the absence of RAS G12D activity. This plastic conversion involved a switch in transcription factor usage, and did not require extensive chromatin remodeling. Enforced conversion of metastatic cells to the Lgr5⁺ state via RAS G12D inhibition, followed by genetic ablation of this population, produced strong therapeutic effects. Overall, these findings demonstrate a central role for oncogenic KRAS in governing cellular plasticity in mCRC.

2025-09-29 | GSE294823 | GEO

A plastic EMP1⁺ to LGR5⁺ cell state conversion as a therapeutic bypass to KRAS-G12D inhibition in metastatic colorectal cancer [scRNA-Seq]

2025-09-29 | GSE294820 | GEO