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Octreotide Acetate and Recombinant Interferon Alfa-2b or Bevacizumab in Treating Patients With Metastatic or Locally Advanced, High-Risk Neuroendocrine Tumor

ABSTRACT: This randomized phase III trial studies octreotide acetate and recombinant interferon alfa-2b to see how well it works compared to octreotide acetate and bevacizumab in treating patients with high-risk neuroendocrine tumors that have spread to other places in the body (metastatic) or spread from where it started to nearby tissue or lymph nodes (locally advanced). Octreotide acetate and recombinant interferon alfa-2b may interfere with the growth of tumor cells and slow the growth of cancer. Monoclonal antibodies, such as bevacizumab, may interfere with the ability of tumor cells to grow and spread. It is not yet known whether giving octreotide acetate together with recombinant interferon alfa-2b is more effective than giving octreotide acetate together with bevacizumab in treating patients with neuroendocrine tumor.

DISEASE(S): Gastric Neuroendocrine Tumor G1,Neuroendocrine Tumors,Atypical Carcinoid Tumor,Carcinoid Tumor,Neuroendocrine Neoplasm,Colorectal Neuroendocrine Tumor G1,Neoplasms

PROVIDER: 2047189 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:The management of neuroendocrine tumors (NETs) is very variable, depending on many specific aspects, such as the type of tumor, spread and patient general health. Several advances have been made with the newly developed somatostatin analogues to cure this type of malignancies. Somatostain analogues such as octreotide have been used in clinic to treat patients with neuroendocrine tumors (NETs). However, the molecular mechanism leading either to successful therapy or acquired resistance to the analogues is still to large extent unclear. Patients develop drugs resistance during a long term treatment. Therefore, to identify the pivotal regulatory genes involved in the development of drug resistance is an actual challenge. We studied five human neuroendocrine tumor cell lines, CNDT2.5, KRJ1, QGP-1, NCI H720 and NCI H727. We also investigated a long-term treated CNDT2.5 by using octreotide. We performed gene expression profiling in all the human neuroendocrine cell lines. Keywords: Gene Expression profiling, treatment comparison We investigated 5 human neuroendocrine cell lines, CNDT2.5 and KRJ1, established from ileum NETs, QGP1 by a pancreatic NET, NCI H720 and NCI H727 from bronchopulmonary NETs. CNDT2.5 cell were constantly treated with 1M-BM-5M octreotide for 10 and 16 months. We isolated total RNA (Ambion, PARISM-bM-^DM-" Kit) from 5 WT cell lines and CNDT2.5 treated with octreotide (Santostatin, Novartis). Total RNA was hybridized onto the Affymetrix Human Gene 1.0 ST Array by Affymetrix Uppsala Platform, UU. SE (Uppsala, Sweden). We first wanted to verify whether the different cell lines may become reliable models to study neuroendocrine signaling pathways. The main objective of this project aimed at understanding the mechanisms by which octrotide (Sandostatin, Novartis) alter cellular growth and differentiation of CNDT2.5 cells. We therefore focused on intermediate (10 months) and long stimulation (16 months) events triggered by sandostatin, which lead variation of CNDT.2.5 cells gene expression to identify potential pivotal genes involved in the development of drug resistance in neuroendocrine cells.

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Octreotide Acetate and Recombinant Interferon Alfa-2b or Bevacizumab in Treating Patients With Metastatic or Locally Advanced, High-Risk Neuroendocrine Tumor

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