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.
Parkinson's disease mainly affects the dopaminergic neurons of the Substancia nigra, which project on the striatum. Neuronal death within this structure leads to a decrease in dopamine levels. Dopamine is a neurotransmitter essential to the proper functioning of the basal ganglia highly involved in the control of voluntary and involuntary movements. It also leads to cognitive and behavioral changes. Among these changes, the investigators will mainly remember the idea of the emergence of difficulties to make the right decisions, for example at the financial, medical .... This disruption would be the result of executive dysfunction. By definition, executive functions allow us to evaluate, plan and organize our actions to achieve a goal.
Mixed cryoglobulinemia (MC) is common in patients with chronic hepatitis C virus (HCV) infection. Direct-acting antiviral (DAA) regimens are today very effective with sustained virological response rates (SVR12) above 90%. The objective of this study was to investigate the impact of DAA therapy on cryoglobulin clearance in patients with HCV-associated MC.
The non-O blood group is a risk factor of deep vein thrombosis and recurrence of thromboembolic events, especially when associated with Factor 5 Leiden or prothrombin G20210A mutations. A recent study suggests that non-O blood group may promote portal vein thrombosis in non cirrhotic patients. In addition, in general population and chronic hepatitis C, non-O blood group combined with one or the other of the above genetic abnormalities is associated with an increased risk of liver fibrosis and accelerated fibrogenesis. The suspected mechanism could be an increased procoagulant factor VIII and an increased Willebrand plasma level, due to a low ADAMTS 13 activity, the result of which is an hypercoagulable state and a microthrombotic process. In cirrhotic patients procoagulant factors and ADAMTS 13 which are respectively increased and decreased, have be shown to be prognostic markers of hepatocellular function and portal hypertension. It has been hypothesized that the hypercoagulable state and the microthrombotic process could contribute to the worsening of the disease and enoxaparin has been shown to positively modify the prognosis of cirrhosis. The role of non-O blood group in decompensation of cirrhosis and occurrence of complications including non-tumor portal vein thrombosis has never been studied. The investigators plan a longitudinal observational study to determine the incidence of complications in alcoholic and viral cirrhosis in case of non-O blood group compared to O blood group. The aim of this study is to determine whether ABO blood group may promote complications in alcoholic or viral cirrhosis. This is an ancillary study of two national cohorts assessing natural history and hepatocellular carcinoma risk factors in alcoholic (CIRRAL) and viral (CIRVIR) cirrhosis.
Introduction: Preeclampsia (PE) and intrauterine growth restriction (IUGR) are two major pregnancy complications, related to a chronic utero-placental hypoperfusion. Nowadays, there isn't a screening or diagnostic test in clinic for utero-placental vascularization deficiency. Since 2004, 3D Power Doppler angiography has been used for the evaluation of utero-placental vascularisation and three vascular indices have been calculated: the vascularisation index (VI), flow index (FI) and vascularisation-FI (VFI). A high intra and inter-observer reproducibility and its potential interest for placental function study were reported. The investigator's main hypothesis is that these 3DPD indices could provide predictive values for PE and/or IUGR occurrence much higher than those observed with the currents other markers. Objectives: The main objective of this study is to determine differences in 3DPD indices at first trimester between pregnancies defined at their outcome as uncomplicated pregnancy, PE (mild and severe) and IUGR in nulliparous women. Methods and analysis: This is a prospective study. The investigators expect to include 2200 women in 4 French centers: Centre Hospitalier Universitaire de Nancy, Paris-Port-Royal (Assistance Publique - Hôpitaux de Paris), Strasbourg and Belfort (Hôpital Nord Franche-Comté). The nulliparous pregnant women will be recruited during their 1st trimester consultation for routine Down syndrome screening (11-13+6 gestation weeks). Especially for the study, the 3DPD and Uterine Artery Doppler (UAD) acquisition, which last less than 10 min, will be included in the current routine 11-13+6 gestation weeks ultrasound screening. Also, additional blood samples will be taken for biomarker analysis (PAPP-A and P1GF) and biological collection. Utero-placental vascularization indices (VI, FI, VFI) will be quantified using VOCAL® software. For each subgroup (uncomplicated pregnancy, PE and IUGR) mean values in 3DPD indices will be computed and compared using a pairwise t test with a Bonferroni correction p value adjustment.
Chronic renal disease (CKD) is defined as a decrease in glomerular filtration rate (GFR) and / or proteinuria or albuminuria (a protein present in urine). Albuminuria is considered a marker of endothelial dysfunction. Proteinuria and / or albuminuria are recognized as cardiovascular risk factors in both diabetic and non-diabetic populations, independently of GFR. It is also a marker of progression of kidney disease. cluster of differentiation 146 (CD146) is an endothelial adhesion molecule with preferential localization in the junction. Soluble CD146 (or CD146s). CD146s is a biomarker of endothelial dysfunction that is easy to assay. The increase in CD146 levels was described during the MRC, especially in diabetic patients with significant proteinuria. In two independent cohorts of patients with CDR, CD146s did not correlate with creatinine or GFR but appeared to correlate with proteinuria. The aim of our study is to determine whether the blood concentration of CD146s is correlated with proteinuria independently of GFR. For this purpose, we propose this study in the kidney nephrology and transplantation center of Conception Hospital, with the objective of highlighting the link between proteinuria and serum CD146 levels in patients with CKD, whatever their renal function and / or underlying pathology. 205 patients will be included over two years with dosing of CD146s and proteinuria at the same time. These 205 patients will be recruited at each stage of the CKD (41 in each arm). CD146s could be a new biomarker predicting the risk of renal function impairment or cardiovascular risk independent of renal function.
Prison concentrates people with violent behavior and patients suffering from psychiatric disorders. Aggression are daily, the suicide rate is 5 to 10 times higher than the ordinary environment and current prevention devices have shown their limits. That's why, in order to improve the violence's prevention in prison, the investigator propose to identify the predictive factors of violence by studying retrospectively the link between the psychiatric profile and commission of violence after being jailed.
The purpose of this pilot study is to encourage oncology patients to continue effort retraining after their release from rehabilitation and recuperative care facilities with physical activity sessions and therapeutic education using an intelligent electric bicycle (VELIS)
The primary objective of the study is to determine the maximum tolerated dose (MTD) of blinatumomab in combination with pembrolizumab in adults with relapsed or refractory (r/r) DLBCL.
Since it is not routine practice in France to raise public awareness about the risk of acquiring multidrug resistant Enterobacteriaceae (MRE) during international travel, the investigators aimed to determine, among French travelers attending a consultation for travel medicine, patients level of knowledge about the risk of acquiring MRE.
Multiple sclerosis, chronic inflammatory disease of the central nervous system, affects approximately 100,000 peoples in France. It is the leading cause of disability in young adults. Tremor is a common symptom (25-58% of patients depending on the series) and can be particularly disabling. The drug treatments against tremor are ineffective or insufficient. Deep brain stimulation of the Vim (Small nucleus within thalamus) and stereotactic radiofrequency thalamotomy have shown their efficacy in this indication. However, in some cases these invasive procedures are impossible because of operational risk. Gamma knife thalamotomy can be an alternative choice. This procedure, less invasive, mainly because of the absence of craniotomy is used by several teams of international reputation for over fifteen years, with good to excellent results in essential tremor. The team of Marseille, which has an experience of 22 years in Gamma Knife radiosurgery has treated 250 patients with severe tremor (essential tremor or Parkinson's disease) by a unilateral thalamotomy with an improvement of 70% of functional scores. In the literature, no formal studies of the effect of Gamma Knife in Multiple Sclerosis (MS) tremor is reported. There are only a few cases without specific evaluation of the efficacy in this disease. Hence the importance of studying in detail the effects of this technique, which allows a precise and limited lesion volume. Using an isocenter of 4mm and a dose of 130 Gy radiation lesion obtained is limited to a volume of 200 to 500 mm3. The aim of this study is to assess through a minimally invasive technique with a circumscribed and reproducible lesion volume, the effect of thalamotomy on the particular tremor in multiple sclerosis with a prospective evaluation of its effects. Patients with MS with a disabling tremor will be included in the study. They will be assessed with neurological examination, quality of life scales, neuropsychological assessment, functional scores and cerebral MRI. This study will demonstrate the feasibility and effectiveness of Gamma Knife thalamotomy in MS patients with severe tremor.