Active clinical trials for "Neoplasms"

The investigators propose to create a database at the regional level, the principle is to include all patients in whom a mutation was detected from a single platform (Lille). The creation of this regional cohort, smaller than the national cohort of Biomarkers France, will perform a more comprehensive collection of clinical data, and molecular monitoring data of patients included. To increase the completeness of the collection of information, it will not be based on voluntary prescribing clinician but will be largely carried out by CRA dedicated to this activity.

The goal of this study is to identify genetic alterations resulting in the development of arteriovenous malformation (AVM) in the central nervous system.

Both Neurofibromatosis type 1 (NF1) and Tuberous Sclerosis Complex (TSC) are highly heterogeneous diseases. Cognitive features seem to vary widely even between family members carrying the same mutation. This phenotypic variability is not well understood, but is generally assumed to be caused by modifier genes which regulate the affected pathways. However, recent studies brought forward an alternative explanation for the phenotypic variability. Post-mortem studies showed that second hit mutations causing loss of the second ('healthy') allele are more widespread than previously believed. These loss of heterozygosity (LOH) mutations cause bi-allelic loss of the disease-linked gene and are known to cause the gross of somatic features in both diseases (like neurofibromas and hamartomas). Hence, it could be the stochastic occurrence of second-hit mutations in the brain are the cause of the variable cognitive phenotypes. To investigate to what extent these LOH mutations in the brain contribute to the phenotype and to what extent this variation is due to genetic modifiers factors is unknown. The investigators therefore propose to elucidate this variability by comparing the correlation of cognitive features of monozygotic twins with NF1 or TSC to healthy twins in the population. If modifier genes are the cause of the variability of cognitive features in NF1 and TSC the investigators expect that the variability in cognitive tests in monozygotic twins is the same as monozygotic twins in the healthy population. However, if the variability is caused by the occurrence of LOH mutations, the investigators expect to have a lower correlation in our monozygotic patients compared to the healthy twins.

Gliomas are the most common malignant primary central nervous system (CNS) tumours. When high-grade gliomas (HGG) recur, subsequent magnetic resonance (MRI) imaging, with additional sequences is required.The Positron Emission Tomography (PET) radiotracer [18F]-fluorodeoxyglucose (FDG) will be used in this study to distinguish between changes seen on MRI which can be a reflection of pseudoprogression, radiation necrosis, or recurrence.

The aim of this study was to evaluate MR/PET with both functional and molecular imaging on the prediction of prognosis in patients with suspected pancreatic cancer.

In this prospective study, we will recruit newly diagnosed esophageal cancer patients and perform MR/PET before and after chemoradiation therapy. In MR, new image sequences will be added to the conventional sequences, such as high resolution image, DWI, DCE, cine imaging.

To find out the gap between real-world clinical practice and guideline recommendations in initial management of DTC patients To observe the characteristics of patients who achieved and did not achieve TSH target value after one year follow-up To assess response to initial therapy in patients who undergo total or near-total thyroidectomy and RAI remnant ablation after one year follow-up (according to an modified dynamic risk stratification system) To observe the recurrence status after one year follow-up

The Role of microRNA-29b in the Oral Squamous Cell Carcinoma

The MET oncogene encodes the receptor tyrosine kinase (RTK) for hepatocyte growth factor (HGF) and controls genetic programs leading to cell growth, invasion and protec¬tion from apoptosis. Although the definitive role of MET oncogene is yet to be determined in carcinogenesis of gastric cancer, overexpression and amplification of c-Met has been demonstrated in gastric cancer cell lines. In addition, approximately 10-20% of gastric cancer tissues and up to 40% of the scirrhous histological subtype were shown to harbor increased MET gene copy numbers. Importantly, PHA-665,752, a selective c-Met kinase inhibitor showed significant reduction of established tumor mass in mouse xenografts with GTL16, a gastric cancer cell line with >10-fold MET amplification. Another pivotal study showed that gastric cancer cells with MET amplification were extremely sensitive to PHA-665,752 and implicated a potential role of c-Met protein in developing theranostics in gastric cancer. More and more data indicated that c-Met was an important prognostic factor in gastric cancer. Gastric cancer is a heterogeneous disease. Does the expression and amplification of c-Met in the primary lesion differ from the metastatic disease? Does the expression and amplification of c-Met in the early disease differ from advanced disease? Till now there is no related report. Purposes: Compare the expression and amplification of c-Met between primary lesion and metastatic lesion together with clinical characteristic, to explore the relationship of c-Met expression and metastatic pattern Compare the expression and amplification of c-Met between early stage and metastatic stage, and to explore the role of c-MET in the development of carcinoma

The purpose of the study is to investigate whether there are prognostic factors regarding the mental and functional adjustment of colon cancer patients following curative surgery. Patients will be selected using specific inclusion criteria. Prognostic factors investigated include personality characteristics, initial distress, medical, social and economic factors. The utmost purpose of the study is to assist clinicians with the timely identification of vulnerable patients in order to ensure their proper management and their optimal adjustment. Moreover this is the first study using the Distress Thermometer in Greek patients with cancer.