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 compositional analysis of commensal bacterial populations collected from a variety of clinical samples has been recently made possible with the availability of Next Generation Sequencing (NGS) technologies. The term 'next-generation probiotics' (NGP) is now widely used to describe these commensal species of potential health interest. However, this approach is still hampered by the fact that there are usually few or even no strains available for a number of commensal species. In this context, BIOASTER has developed a specific technological process based on flow cytometry analysis and then sorting under strictly anaerobic conditions to target and cultivate commensal species of interest. The review of the literature shows that certain species present among centenarians have an interest in maintaining the longevity of these individuals. Numerous studies have shown that the intestinal microbiota of centenarians presents a greater diversity compared to groups of younger subjects as well as an enrichment in certain bacteria such as Akkermansia and Christensenella. The goal of this observational study is to constitute a biological samples collection from centenarian people, to proceed with the isolation of beneficial commensal strains such as Faecalibacterium prausnitzii, Akkermansia muciniphila and Oscillospiraceae, in a non-limitative way. Elderly and centenarian people will be recruited in nursing home among the Gerontopole of "Ile de France" network. Blood (serum + TruCulture tubes) and stools will be collected from each subject.
CMV disease remains the most frequent infectious complication post-transplant and it is associated to high morbidity and even mortality. Global efforts from both transplant physicians and researchers in the field is needed to better characterize the host-virus interactions in the transplant setting, with the aim of decreasing the burden of disease and improve the well-being of patients. "HORUS" (Casting light on HOst-cytomegaloviRUs interaction in Solid organ transplantation) study is a European research project, funded by the European Commission (Horizon Europe) involving 16 partners in seven European countries (France, Spain, Czech Republic, Belgium, Switzerland, Germany and Italy) aiming to better characterize the host-CMV interactions in SOT recipients. The first aim of HORUS study will be to build a European cohort of SOT recipients including clinical characterization and the constitution of a biocollection, which is the aim of HORUS cohort, in order to perform biological, immunological, gene expression, viral kinetics and deep viral genome characterization in the global European HORUS project to improve our understanding of the development of a CMV immune response in the context of immunosuppression.
Human Papilloma virus is the most common sexual infection in women, which can leads to cervical lesion and cervical cancer. Pap test is recommanded in women of 25 years old until 65 years old in order to screen subclinic lesions and improve prognosis. Yet, scientific knowledge about chronic disease showed negative consequences on quality of life. However, no study until now has striven to evaluate the consequences of an abnormal pap test on sexuality in adult women. The aim of this study is to evaluate if an abnormal pap test have an impact on the sexual functions in women because of the anxiety and psychological consequences of the diagnosis
To evaluate and to compare the effect of orthokeratology (OK) on axial elongation in French myopic children.
International retrospective observational cohort study aimed to describe a molecular classification for NMZL.
In France, about 5000 new people with a primary malignant brain tumor are diagnosed each year. The most common primary tumors are gliomas, originating from glial cells (astrocytomas and oligodendrogliomas). Low-grade gliomas are mildly aggressive, but they often evolve into a more malignant form. Mutations in the genes encoding isocitrate dehydrogenase (IDH) are found in about 80% of low-grade gliomas and are associated with a favorable prognosis. Remarkably, IDH-mutated gliomas are characterized by a specific cellular metabolism causing the accumulation of D-2-hydroxyglutarate (2HG) in tumor cells. 2HG can be detected in vivo using 1H magnetic resonance spectroscopy (MRS) and is recognized as a unique, noninvasive biomarker of IDH-mutated gliomas. Noninvasive detection of IDH mutations via 2HG MRS represents a crucial step for decision-making and patient care. A subset of IDH-mutated tumors also presents a complete deletion of 1p and 19q chromosome arms (1p/19q codeletion). The 1p/19q codeletion is specifically linked to the oligodendroglial histologic subtype and it has been associated with a better patient outcome. However, the biological effects of this genetic alteration are still unclear and in vivo markers are lacking. Recently, we reported the first in vivo detection of the cystathionine molecule in human brain gliomas using MRS and explored the association between cystathionine accumulation and 1p/19q codeletion in gliomas. In this project, the investigation team will combine cutting edge MRI and MRS techniques for metabolic and microstructural characterization of brain tumors with the aim of providing novel reliable noninvasive biomarkers of tumor genetic subtypes. These methods will enable noninvasive identification of IDH-mutated gliomas and, potentially, 1p/19q codeleted gliomas. In addition, the researchers will investigate the utility of 2HG, cystathionine and MRI microstructural markers to monitor tumor response to anti-cancer treatments and tumor progression. The outputs of this project, altogether, may open new avenues to a better understanding of the pathophysiological mechanisms of oncogenesis and the design of new treatments for gliomas.
The term dermatoporosis (DP) was proposed by JH. Saurat in 2004 and detailed in 2007 to describe a chronic cutaneous insufficiency and fragility syndrome. The concept of DP, the positive diagnosis and the complications are well identified in the literature. However, while the consequences of skin aging are a growing concern, knowledge of DP is stagnant. DP is clinically defined by the combination of three clinical signs: skin atrophy, white pseudo-scars, and senile purpura. It mainly sits on photo-exposed regions: posterior face of the forearms and back of the hands in 92 to 100% of cases; but also the pre-tibial, pre-sternal, and cephalic regions. DP appears at around 60 years old and can worsen with advancing age. Complications of varying severity can occur during its development: skin tears, delayed healing, infection, hematomas including dissecting hematomas that are sometimes life-threatening. DP is classified into four stages defined in 2004 and revised in 2012. The autonomy of the DP entity or its integration as a marker in multi-organ failure has not yet been determined. It is a condition on the borders of several specialties requiring good coordination between them (dermatologists, general practitioners, geriatricians, nurses, etc.) The few published epidemiological studies report a prevalence ranging from 4% to 37.5% in patients aged 50 years and over. These epidemiological data are very heterogeneous (age of recruitment, patients hospitalized or seen on an outpatient basis in consultations of different specialties, sample of the population, etc.). Among these studies, three clinical studies, two on a French hospital cohort, the other on outpatients in Dermatology in Finland, estimated the prevalence of DP between 27 and 32% in adults aged 60 years and older. In all three studies, DP was associated with advanced age, with a risk of DP up to double in patients aged 85 and older compared to younger patients. In two of these studies, a link was suggested with the status of chronic renal failure, either independently for one, or concomitant with taking anticoagulants and corticosteroids for the other. For Kluger et al., DP was also associated with the independent use of very strong local or systemic corticosteroids. For Chanca et al., an independent link between DP and tobacco consumption, taking anticoagulant treatment, and chronic recreational sun exposure has been observed.
In addition to respiratory involvement, SARS-CoV 2, the virus responsible for coronavirus 2019 or Covid-19, appears to be responsible for renal involvement such as acute renal failure or proteinuria, so the mechanisms are not known at this time. The consequences of Covid-19 on renal function in the short and long term are not known. It is important to be able to better document these renal impairments to understand the mechanisms of this disease. The main objective of this study is to describe the prevalence of Covid-19-related renal damage (acute renal failure, proteinuria, microalbuminuria, hematuria) in a large cohort of patients in intensive care for SARS-CoV 2 infection with severe respiratory impairment. The other objectives will be to evaluate in this cohort the impact of these renal impairments on the severity of the Covid-19 disease, and to compare them to the renal impairments of patients in intensive care for acute respiratory distress syndrome (ARDS) due to other respiratory diseases. Blood and urine samples will be taken at the time of intubation in all critically ill patients with respiratory distress requiring mechanical ventilation for Covid-19 or other cause of respiratory distress with PaO2/FiO2 ratio < 300. Patients will be followed for the duration of their ICU and hospital stay. Data will be collected prospectively in three ICUs in the University Hospitals of Marseille.
HIV-infected patients develop comorbidities earlier than the general population. Immune activation with the secretion of pro-inflammatory cytokines would play a major role in the occurrence of these comorbidities. Numerous factors, called risk factors, already identified in the general population and confirmed in patients with HIV virus favor the occurrence of these comorbidities but cannot alone explain the overrepresentation and precocity of these comorbidities in the HIV population. Investigators hypothesize that optimization or simplification with certain classes of antiretrovirals modify the inflammatory response and are predictive factors for the occurrence of comorbidities
The aim of this prospective interventional study is to compare the bioavailability of the 6S-5-methyltetrahydrofolate (5-MTHF) glucosamine salt versus two other forms of 5- MTHF calcium salts by measuring serum 5-MTHF responses after a single ingestion of equivalent doses of the three folate forms in humans. The hypothesis of this study is that the test products 5-MTHF glucosamine and calcium salts have equivalent bioavailabilities in serum 5-MTHF as measured by the area under the curve over a period of 24 hours (AUC0-24h) after consumption of a single dose of 5-MTHF (400μg). Participants will receive a single dose of each of the following products separated by a 7-day wash-out period: - 5-MTHF glucosamine salt - 5-MTHF calcium salt 1 - 5-MTHF calcium salt 2