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NCT ID: NCT04206033 Completed - Osteopenia Clinical Trials

Hemophilia and Bone Metabolism: Study of Monocytic Populations and Inflammatory Proteins

BOHEM
Start date: November 29, 2019
Phase:
Study type: Observational

The investigators propose, as part of the study, to carry out for each patient: - An analysis of monocytic populations by flow cytometry (CD14, CD16, CD45, CD68, CD115, CCR2, CX3CR1, CD163 and CD206). - A population assessment of Myeloid-Derived Suppressor Cells (MDSC). - Assays of cytokines and chemokines involved in inflammation by multiplex analyzes: Il-1 (α and β), Il-4, Il-6, Il-10, Il-13, TNF- α, TGF- β, CRP , leptin, IFN- β. - Specialized dosages of proteins involved in bone metabolism. RANKL, osteoprotegerin, M-CSF, TRAPCP5.

NCT ID: NCT04205799 Completed - Clinical trials for Advanced/Metastatic Cervical Cancer

Cabozantinib for Advanced or Metastatic Cervical Carcinoma After Platinum Treatment Failure

CABOCOL-01
Start date: January 15, 2020
Phase: Phase 2
Study type: Interventional

Assess efficacy and safety of cabozantinib in monotherapy in advanced/metastatic cervical cancer (CC) after failure of platinum-based regimen treatment.

NCT ID: NCT04205383 Completed - Healthy Volunteers Clinical Trials

GROSS-HIST : Quantification of the Main Circulating Histones During Normal Pregnancy and Pregnancies With Placenta-mediated Complications

GROSS-HIST
Start date: March 1, 2019
Phase:
Study type: Observational

Pregnancy generates an increased thrombotic risk, and placental-mediated diseases are a risk factor for cardiovascular diseases, in particular: pre-eclampsia (PE), intrauterine growth retardation (IUGR), retroplacental hematomas (HRP), late intrauterine fetal deaths (LIFD) of placental origin and preterm deliveries of vascular origin. They are responsible for significant maternal-fetal morbidity/mortality. Data published in 2007 by the Haute Autorité de Santé (HAS) show that hypertension and pre-eclampsia are, in France, at the origin of 3 to 8% of the risk of perinatal mortality. During pregnancy, a transitional organ of foetal origin, the placenta, is established, which is essential for the maintenance and harmonious development of the pregnancy. The chorionic villus, in contact with maternal blood in the intervillous chamber, is the structural and functional unit of the placenta. After the initial implantation phase, the trophoblastic cell constituting the main part of the placental villi differs in two ways: (A) into "citrus cytotrophoblasts" whose cells will fuse to generate the multinucleated outer layer giving the syncytiotrophoblast that ensures fetal-maternal exchanges and endocrine functions of the placenta; (B) into "invasive extra-city cytotrophoblasts" essential for the effective anchoring of the placenta in the decidualized uterine mucosa and for the remodelling of the terminal uterine spiral arteries, whose resistance to blood flow must collapse to allow effective oxygenation of the villi. Extra-city trophoblasts change from an epithelial phenotype to an endothelial phenotype. They may thus be exposed to pro-thrombotic factors such as endothelial cells. A lack of trophoblastic invasion and incomplete remodelling of the spiral uterine arteries are responsible for placental hypo-perfusion, hypoxia and the occurrence of placenta-mediated pathologies (pre-eclampsia, intrauterine growth retardation, retroplacental hematoma, fetal loss and fetal death in utero). The most common placental-mediated disease is pre-eclampsia (5% of births). It corresponds to a complication occurring from the second trimester of pregnancy and which is clinically characterized by high blood pressure, oedema and proteinuria. It is responsible for premature deliveries and is a major cause of intrauterine growth restriction. To date, there is no specific and early biomarker for the occurrence of placental vascular pathologies. Recent developments raise, for example, the question of circulating angiogenesis inhibitory factors (sFlt1, sEng) in pre-eclampsia. With regard to treatment, early administration of low-dose aspirin before 16 weeks of pregnancy seems to reduce the risk of pre-eclampsia, hence the importance of having very early markers of the disease. Discovering such markers is therefore one of the major challenges in strengthening women's follow-up and avoiding subsequent complications. For fetal losses and retroplacental hematoma, the administration of low molecular weight heparin has been shown to be effective. However, these treatments are not specific to placental vascular pathologies. Thus, understanding and exploring the cellular and molecular mechanisms of vascular-placental interface dysfunctions remains necessary to enable targeted management of patients feeding the general principle of precision medicine. Compare the concentrations of (i) circulating histones involved in inflammation, proliferation, migration or cell differentiation (H3-citrullinated histone, acetylated histones (Pan-histones), H1 histone) and (ii) free HMGB1 protein between the three patient groups ("GrossN", "GrossC", "VolS"). The histones H3-citrullinated, acetylated histones (Pan-histones), H1 histone as well as the free HMGB1 protein will be quantified. This choice corresponds to the histones involved in inflammation, proliferation, migration or cell differentiation and can be quantified to date.

NCT ID: NCT04205032 Completed - Healthy Clinical Trials

Evaluation in Healthy Volunteers of CARDIOSPACE II

CDSII
Start date: June 28, 2021
Phase: N/A
Study type: Interventional

The aim of this project is to test the CARDIOSPACE II system that integrates several medical devices. This system is dedicated to physiological studies in space environment. - Electrocardiogram - Vascular doppler - Laser doppler with iontophoresis - Continuous blood pressure recording at the finger level - Brachial blood pressure - Ultrasound - Ambulatory Electrocardiogram and SAO2 (arterial oxygen saturation) recorder

NCT ID: NCT04204980 Completed - Clinical trials for Kidney Transplant Rejection

Desensitization in Kidney Allograft Using Daratumumab

DARDAR
Start date: February 18, 2020
Phase: Phase 1/Phase 2
Study type: Interventional

Patients highly allosensitized against HLA antigen awaiting for a kidney transplant have less compatible transplants to them, increasing their waitlist time and mortality. Current desensitization strategies need to be improved with a high remaining acute rejection rate in this population and a substantial survival benefit which is not uniformly reported in the literature. The investigators propose to use daratumumab, a human IgG1 (Immunoglobulin Gamma-1) monoclonal antibody directed against the CD38 molecule (cluster of differentiation 38) witch induce response in refractory multiple myeloma by depleting plasma cells, as a new agent of desensitization. The study will address the hypothesis that daratumumab can lead to a significant decrease in calculated panel reactive antibodies by elimination of anti-HLA antibodies-producing plasma cells and facilitate the access to transplantation with a safety profile in highly sensitized patients registered in our kidney transplantation center.

NCT ID: NCT04204512 Completed - Clinical trials for Giant Cell Arteritis

Comparison of 22Mhz and 18Mhz High-frequency Probes for the Ultrasound Study of Temporal Arteries in Patients Suspected of Having Giant Cell Arteritis

ECHORTON
Start date: December 17, 2019
Phase:
Study type: Observational

Evaluation of the structural features of temporal arteritis using two frequencies probes: 18 and 22Mhz.

NCT ID: NCT04204291 Completed - Respiratory System Clinical Trials

Project A4sc - An Atlas of Airways at a Single Cell Level

A4sc
Start date: June 23, 2020
Phase: N/A
Study type: Interventional

The increasing incidence of chronic respiratory diseases is a public health problem affecting hundreds of thousands of people around the world, including children. Directly exposed to atmospheric aerocontaminants (pollution, allergens), the respiratory tracts represent a complex ecosystem that involves different cells that develop complex interactions with the surrounding connective tissue but also with their rich immune environment and with the microbiota. Although a pathophysiological continuum is postulated between the nasal and bronchial airways in certain diseases, such as allergic diseases, we have identified broad gradients in gene expression between nasal and bronchial samples. This is why cellular variability throughout the respiratory tree needs to be studied in detail. The sequencing of RNAs specifically present in a particular cell, and its comparison with neighboring cells, allows us to document precise cellular contributions and intercellular relationships. Our project will establish protocols to stabilize airway swabs by brushing and/or biopsy, under conditions that will then allow the analysis of gene expression profiles at the single cell level (single cell RNA sequencing). The development of the "single cell" stabilisation and analysis protocol will first be carried out on primary respiratory epithelium cultures and then extended to respiratory specimens taken from healthy volunteers. Through sampling at several levels of the respiratory tree, variations in expression along the tracheobronchial axis will be fully documented. Finally, the interaction between the epithelial compartment and the immunological compartment will be studied by analyzing gene expression on a single cell in different physiopathological contexts.

NCT ID: NCT04203797 Completed - Asthma Clinical Trials

A Study to Evaluate the Effect of Dupilumab on Exercise Capacity in Adult Patients With Asthma

Start date: July 16, 2020
Phase: Phase 4
Study type: Interventional

The primary objective of the study is to demonstrate that dupilumab treatment improves exercise capacity in patients with moderate-to-severe asthma. The secondary objectives of the study are: - To demonstrate that dupilumab treatment increases physical activity of daily living in patients with moderate-to-severe asthma - To demonstrate that dupilumab treatment improves pre- and post-exercise lung function in patients with moderate-to-severe asthma

NCT ID: NCT04203667 Completed - Polyp of Colon Clinical Trials

EndoRotor® Endoscopic Mucosal Resection System for the Colon

Start date: April 18, 2018
Phase: N/A
Study type: Interventional

The EndoRotor® is intended for use (USA labeling) in endoscopic procedures by a trained gastroenterologist to resect and remove tissue, not intended for biopsy, of the gastrointestinal (GI) system including post-endoscopic mucosal resection (EMR) tissue persistence with a scarred base and residual tissue from the peripheral margins following EMR. In this trial investigators will conduct a post-market, prospective, non-randomized, multi-center study for the treatment of subjects with the need for resection of recurrent flat or sessile colorectal lesions where EndoRotor is the primary resection modality of persistent adenoma with a scarred base.

NCT ID: NCT04202705 Completed - Solid Tumor Clinical Trials

A First-in-human Dose-escalation and Expansion Study With the Antibody-drug Conjugate SYD1875

Start date: February 28, 2020
Phase: Phase 1
Study type: Interventional

This is the first-in-human study with SYD1875, an antibody-drug conjugate (ADC) comprising of a humanized IgG1 monoclonal antibody directed against the 5T4 oncofetal antigen covalently conjugated to a duocarmycin-based linker-drug. This study includes a dose-escalation part (Part 1) in which the maximum tolerated dose (MTD) and recommended dose for expansion (RDE) will be determined, and an expansion part (Part 2) to evaluate efficacy and safety in specific patient cohorts.