There are about 36633 clinical studies being (or have been) conducted in France. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The breast cancer is composed of multiple biological entities. Recent progress in molecular biology, DNA or RNA chip, permitted the global tumour genome or transcriptome study. Those technics, leads to an increased in the molecular biology knowledge and a better oncogenesis understanding. Breast cancer taxonomy was established following the tumor genetic profile. Moreover this classification is incomplete and didn't include the metabolic pathways other than hormonal or HER2 pathways. The metabolomics is an expanding field of research exploring the metabolites in cells, tissues or biologics fluids. It allows assessing the variation activation of the different cellular metabolic pathways. In oncology, it could highlight the main metabolic disturbances, the interaction of tumor cells and to identify the metabolic pathways involved in oncogenesis using the tumor cells metabolites profiles. Compared to genomic, the metabolomics integrated the impact of the cells environments on the cells biology. The cells environment plays, in fact, a key role in the oncogenesis and in the tumor cells phenotypes. The metabolomics, thus being a complementary approach of the genomic in order to assess a better knowledge of the impact of the extracellular environment on the tumor cell phenotype. In addition, the metabolomics analyses are fast and not expensive compatible with routine practice. The main objective of this study is to highlight a metabolic alteration specific to certain tumors phenotypes in order to have better understanding of the biology of the numerous breast cancer entities and find some biomarkers which could be some possible therapeutic target. Using a high resolution mass spectrometer, the investigators will analyze 52 tumor samples from frozen breast surgical specimen preserved in the Centre Antoine lacassagne tumor bank. The tissue analysis could be associated with a serum sample analysis from the frozen serum bank of the Centre Antoine Lacassagne. With 30 patients who performed a 18 FDG-PET before the surgery, The investigators will analyzed the correlation between the tumoral activation of the glycolysis pathways, quantified with mass spectroscopy and the 18FDG uptake. Using the 17 frozen serums available, the investigators will perform a screening to identify some metabolites or metabolites profile which could be detected in the serum in order to develop a new liquid biopsy approach. This study is a retrospective study based on data and sample already available in the center and collected during the routine practice.
This feasibility study has therefore several aims: 1. construct a dedicated CT perfusion protocol for GIT wall perfusion; 2. used a two-compartment pharmacokinetic model which is more adapted that a unique compartment model; 3. from the image acquired, evaluate current parameters of perfusion including the permeability ones
The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) recently identified Internet gaming disorder as a new potential psychiatric disorder which need further research. Several studies showed the important prevalence of psychiatric disorders among patients suffering from internet gaming disorder. Investigators hypothesize that on an other side the prevalence of internet gaming disorder among patients suffering from psychiatric disorders shall be high but it has never been studied yet. The main goal of this trial is to examine the prevalence of internet gaming disorder using the Internet Gaming Disorder Test-10 (IGDT-10) among inpatient aged from 12 to 17 of 4 psychiatric units of French region Auvergne-Rhône-Alpes. Secondary goals will be to assess a parental version of the IGDT-10 (IGDT-10-P) and to compare the two versions. IGDT-10 will be passed during 6 months to every inpatient and IGDT-10-P to their parents within the 21 first days of the hospitalisation.
The principal aim of these researches is to explored the role of motivational parameters, including: automatic and controlled psychological processes and self-regulatory capacities, in physical activity and sedentary behaviors adoption and maintenance. Precisely investigators are interested in change in motivational and self-regulatory processes during rehabilitation programs and their prospective influences on self-reported and objective behaviors among persons with chronic diseases.
The aim of this study is to identify the knowledge and behavior on dental health and hygiene among adolescents. In most cases, the investigators know tooth decay can be prevented and reversed at an early stage by observing good oral hygiene. Few studies have been done among adolescents. This study could justify the implementation of public health actions in terms of prevention.
The purpose of this study is to prospectively evaluate a standardized procedure of medical regulation based on a validated predictive score of eminent delivery (SPIA) in comparison with usual inhomogeneous practices. This standardized procedure impacting the process of care production (when receiving the call for regulation for unannounced delivery) would improve the quality of care of parturients while rationalizing the use of medical teams in the field.
The main purpose of the study was to determine the onset of Mavenclad® action by frequent magnetic resonance imaging (MRI) assessment of the combined unique active (CUA) lesions in participants with highly active relapsing multiple sclerosis (MS).
Myelodysplastic syndromes (MDS) constitute a heterogeneous group of clonal bone marrow neoplasms that predominate in the elderly, with a median age at diagnosis of 70 years. MDS are characterized by peripheral blood cytopenia and morphologic dysplasia for one or more hematopoietic cell lineage, reflecting ineffective hematopoiesis. The diagnostic work-up of MDS includes a bone marrow aspirate and biopsy, which is an invasive procedure, for cytomorphologic and cytogenetic evaluations. Because the prevalence of disease is lower than 20% in subjects referred for suspected MDS, many patients are exposed to unnecessary bone marrow aspiration-related discomfort and harms. An objective assay is highly desirable for accurately ruling out MDS based on peripheral blood samples, which may obviate the need for invasive bone marrow aspiration and biopsy in patients with negative results. Few studies have investigated the value of peripheral blood flow cytometric analysis for the diagnosis of MDS and/or chronic myelomonocytic leukemia (CMML). Although promising, these studies lacked replication of their results, used a case-control design, which was prone to spectrum bias, or yielded imprecise diagnostic accuracy estimates due to relatively limited sample sizes. Anecdotal evidence supports the potential of flow cytometric analysis of peripheral blood neutrophil myeloperoxidase expression for the diagnosis of MDS and CMML. Myeloperoxidase is an enzyme synthetized during myeloid differentiation that constitutes the major component of neutrophil azurophilic granules. Myeloperoxidase expression may reflect neutrophil hypogranulation, which is a classical although subjective dysplastic feature of MDS. Flow cytometric analysis of myeloperoxidase expression in bone marrow neutrophil granulocytes has been used for discriminating low versus high grade MDS. Yet a study reporting on the accuracy of flow cytometric analysis of peripheral blood neutrophil myeloperoxidase expression for the diagnosis of MDS is still lacking, to our knowledge. In this study, the investigators hypothesize that flow cytometric analysis of neutrophil myeloperoxidase expression in peripheral blood may accurately rule out MDS and obviate the need for bone marrow aspiration and biopsy, with sensitivity approaching 100%, in routine practice. In this observational diagnostic accuracy study, burden will be null for recruited patients. No specific intervention is assigned to participants. All diagnostic testing, procedures, and medication ordering are performed at the discretion of attending physicians. Flow cytometry analysis of peripheral blood neutrophil myeloperoxidase expression will not require additional blood sample. A test result will have no impact on patient management. No follow-up visits are planned in this cross-sectional study.
There is no accurate diagnosis method for bruxism for now. Consequences of bruxism over teeth, muscles and articulation of the jaw are important. This study aims to develop a innovative tool in order to accurately rapidly diagnose bruxism in ambulatory evaluation.
Peripheral artery disease (PAD) affects mainly elderly patients. The ankle brachial index (ABI) and ultrasound imaging are the standard diagnostic tools in PAD diagnostic and severity estimation. Measurements are generally performed by a vascular physician. However, access to medical specialist is becoming increasingly difficult with long waiting times while the aging of the population increases, while most of these patients are seen by the general practitioner. To date, there is a lot of data in the literature on the value of using various ambulatory devices in the diagnosis and severity estimation of PAD but studied one by one. The investigators propose to compare the measurements made by a series of simple non-invasive ambulatory tools with the measurements performed by the vascular specialist. The investigators wish to demonstrate that a series of simple and economical tools, available to paramedical health professionals can diagnose PAD and evaluate ts severity the reducing the direct and indirect associated costs.