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.
Monocentric, prospective, randomised, double-blind study of two parallel groups of 66 patients with post-reconstruction ACL hamstring contracture treated with an ultrasound-guided injection at two points on the body of the hamstring - Group 1: botulinum toxin: 100 units (0.5ml) in 1 injection - Group 2: placebo: 0.5 ml in 1 injection
Validation in French of a psychometric tool for measuring health literacy in the field of cancer
The aim of the pilot study is to collect all the ultrastructural platelet characteristics by transmission electron microscopy before and after the onset of an antiplatelet treatment in patients hospitalized for an ischemic stroke ; and to assess recurrence of Ischemic Cerebral Accident (ICA) at 6 months in patients hospitalized for Ischemic stroke.
Hematological malignancies gather several various pathologies included myeloproliferative disorders (as acute myeloid leukemia (AML) or chronic myeloid leukemia (CML)) and lymphoproliferative disorders (as chronic lymphoid leukemia (CLL), non-Hodgkin lymphoma (NHL) and multiple myeloma (MM)) . Over the last decade, the treatments have evolved significantly but the overall survival remains limited, especially for the AML and MM patients. There's an ongoing imperative to continue in-vitro and in-vivo studies to better evaluate the anti-cancer drugs sensitivity and therefore improving the response to treatments and open new fields of application. The healthy control group will be contributing to produce some pertinent and significant data for the results of the index cases group. The investigators aim to analyze 10 differents drugs, common use in chemotherapy or immunotherapy and evaluate by 2 ways the sensitivity: first, Flow cytometry (cells apoptosis by Annexine V and propidium iodide) on fresh samples and in a second time, monitoring of the blasts in the mouse's blood after injection.
Lesions of the anal sphincter complicate 0.8% of childbirth in France. The sexual health of patients following this type of lesion is little studied, there are only about twenty articles on the subject. The objective of this search is to study of the obstetric lesions of the anal sphincter
Obesity is at risk for the development of chronic kidney disease but the involved mechanisms are not known (Navarro et al. 2015). Establishing the link between obesity and kidney damage is difficult. Indeed, kidney function measurement lacks precision in obese people (Lemoine et al. 2014) and requires expensive methods such as measurement of 99mTc-DTPA clearance. Biopsies are too invasive for the detection of emerging kidney damage or for the following of the kidney function. Therefore new tools are required for the early identification of at risk individuals for the kidney damage complication. Mesenchymal stem cells may represent such a relevant tool. These cells are present in a large number of organs, including kidney (Costa et al. 2020). In addition to be differentiated cells progenitors (Dominici et al. 2006), they also support immunosuppressive, anti-fibrotic and pro-angiogenic functions that have been used for the treatment of kidney fibrosis (Usunier et al. 2014). Therefore, mesenchymal stem cells contribute to tissue homeostasis and their alterations may reflect organ dysfunctions. Indeed, mesenchymal stem cells from obese adipose tissue lose their immunosuppressive (Serena et al. 2016) and differentiation (Gustafson et al. 2009) functions and contribute to fibrosis (Keophiphath et al. 2009) and inflammation (Lee et al. 2010; Gustafson, Nerstedt, et Smith 2019). It is thus probable that kidney dysfunctions are associated with functional alterations of kidney mesenchymal stem cells. The collection of mesenchymal stem cells from kidney can easily be performed from urine and next cultivated for amplification. They are called urine stem cells (USC). From our experience with obese mouse adipose stem cells, we observed that functional changes of stem cells preceded adipose tissue dysfunctions. Functional signatures of mesenchymal stem cells are thus representative of changes occuring in the function of the tissue notably in answer to obesity. These features could be used to identify obese people presenting ongoing alterations of kidney function, before clinical manifestations of kidney dysfunction. Because kidney mesenchymal stem cells are easy to isolate from urine, their collection is compatible with the follow up of patients and can be applied to a large number of individuals, including the younger. USC could represent a valuable tool to detect progression towards kidney damage. In this project we plan to analyse USC alterations induced by obesity and to identify signatures associated with the progression towards kidney damage and type 2 diabetes. The goal is to evaluate USC as potential marker for the non invasive monitoring of patients in answer to a need that is not achieved by the present available approaches.
Polycystic ovary syndrome is a common endocrine disorder that affects between 7% and 14% of women of childbearing age, leading to impaired fertility, clinical and biological hyperandrogenism. Long-term complications such as metabolic disorders, cardiovascular disease and hormone-dependent cancers make it a major public health problem. The physiopathology of this syndrome is complicated and still poorly understood, probably multifactorial origin, resulting from the interaction between many factors (genetics, lifestyle, environment). The environment has also an important role in the development of polycystic ovary syndrome : diet, exposure to pollutants and endocrine disruptors. There are many sources of exposure to environmental toxins and it is essential to better understand their impact on our health. Our study aims to assess the association between exposure to endocrine disruptors and development of polycystic ovary syndrome. The population involved in the study includes patients aged 18 to 50 years, premenopausal, consulting in the gynecology department of the university hospital of Reims. The "cases" patients will be patients with polycystic ovary syndrome. The "controls" patients will be patients without polycystic ovary syndrome. Statistical analysis will determine whether "cases" are more exposed to endocrine disruptors than "controls".
High frequency repetitive transcranial magnetic stimulation (HF-rTMS) over dorsolateral prefrontal cortex (DLPFC) could correct defective executive functions over the hyperactive reward circuit through the meso-fronto-limbic connections. The restored cortical inhibitory control over compulsive alcohol use, could improve abstinence after withdrawal. The goal of this study is to evaluate the efficacy of HF-rTMS over DLPFC in AUD patients with executive dysfunction after withdrawal.
Systemic sclerosis (SSc) is a rare connective tissue disease characterized by a high clinical heterogeneity with unpredictable evolution that could engage functional and life-threatening prognosis. Most of patients develop skin fibrosis gradually spreading. Two clinical distinct forms are described according to the extension of skin fibrosis: limited (lSSc) and diffuse (dSSc) SSc. It is now admitted that a spreading of skin fibrosis is associated with poor prognosis. This disease can be complicated by pulmonary arterial hypertension (PAH), interstitial lung disease (ILD) and scleroderma renal crisis (SRC) representing the main causes of death in SSc. Usually, PAH is associated with lSSc, and ILD and SRC are associated with dSSc. Prognosis is also different regarding skin phenotype with a higher mortality rate in dSSc. An easy score, called modified Rodnan skin score, is commonly used in clinical practice to evaluate the spreading and severity of skin fibrosis, but this score is hardly reproducible. Ultrasound can be used to measure skin thickness and is more reproducible than the Rodnan skin score. Nevertheless, non-invasive analysis of fibrosis composition in different areas is not possible with these two technics. Thus, in this study we will investigate Raman spectroscopy, a non-invasive technic based on the interaction of a low-intensity laser with matter.
The use of neuroimaging in the evaluation of neuromuscular pathologies is a promising and rapidly expandinf field. Among the different imaging techniques employed, nerve ultrasound is of particular interest given it's non invasivity, lack of side effects, accesibility and low cost. This exam provides complementary data to electroneuromyography (ENMG), enabeling the physician to visualise the morphological correspondents of electrophysiological abnormalities with a spatial resolution at least as good as MRI. Chronic Inflammatory Demyelinating Polyradiculoneuritis (CIDP), Multifocal Motor Neuropathy with Conduction Blocks (MMNBC), Lewis and Sumner syndrome (L-S syndrome) and anti-MAG antibody-associated neuropathies (anti-MAG) are among the main chronic inflammatory neuropathies of autoimmune etiology. The diagnosis of these diseases is based on clinical, paraclinical and ENMG examinations. Several recent studies have highlighted the valuable role of ultrasound not only in the diagnosis but also for follow up of patients afflicted by this group of diseases. However, the current ultrasound imaging techniques does not allow for a detailed study of the internal structure of the nerves. The developement of technologies with improved resolution contribute to further the knowledge in this innovative field and to better understand the pathophysiological mechanisms responsible for initiation and progression of inflammatory nerve disorders.In the Department of Ultrasound at the Nice University Hospital in France the team have at its disposal a high frequency untrasound that the team use to explore the peripheral nervous system. The scientific hypothesis of this pilot study rests on the premise that demyelinationg neuropathies are a heterogenous group where different types present with different morphological characteristics not only at the level of the nerve as a whole, but also at the level of the nerve fascicles and of the peri- and intra-neural vascular structures. In this respect, high frequency ultrasound allows us to visualise different segments of affected nerves and to obtain morphological details which the team then compare with existing ultrasound data in the literature (high frequency ultrasound: 10-20 MHz). Thanks to this non-invasive and painless technique, the nerve can be rapidly visualised along its entire length in static and dynamic mode. In addition, high frequency ultrasound will give us access to complementary data on the morphology of the soft tissues and the peri- and intra-neural vascular structures which may be useful in shedding light on the underlying pathophysiologycal processes. Another important aspect is the opportunity to make electromyographic and clinical correlations The main parameter The team will study in ultrasound will be hypertrophy, corresponding to an increase in the cross-sectional area of the nerve. the team will also conduct analysis on other less codified parameters, such as epineural and endoneural vascularisation (using the Doppler mode), as well as nerve fascicles anatomy (size, organisation). Identification of different characteristics may be of diagnostic interest in cases where the clinical, paraclinical and ENMG examinations do not allow us to make a diagnostic and therapeutic decision, but it can also prove useful in the follow-up of patients and response to treatment. This is a descriptive, pilot, mono-centric, multiparametric and retrospective analysis study on patients followed in our centre with a diagnosis of CIDP, NMMBC, L-S syndrom and anti-MAG