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NCT ID: NCT04007627 Enrolling by invitation - Pediatric Radiology Clinical Trials

Dose Reduction and Acquisition Parameters Optimization for PEDiatric Digital Radiography

DRAPOPED
Start date: July 15, 2019
Phase:
Study type: Observational

To reduce "As Low As Diagnostically Acceptable" (ALADA) the X ray exposure of pediatric radiology by using a new post treatment processing algorithm (S-Vue, Samsung table GC85A).

NCT ID: NCT03994094 Enrolling by invitation - Osteoporosis Clinical Trials

Three Year Evaluation of a Cohort of Patients Presenting Osteoporotic Fractures

Start date: June 12, 2019
Phase:
Study type: Observational

A specialized osteoporosis clinic has existed in our hospital since 2010. The descriptive retrospective analysis of patients included in this pathway was the subject of a first study on patients included between January 2010 and January 2011 and reported to the Congress of the French Society of Rheumatology (SFR) in December 2011, then a second study on patients included between January 2012 and December 2016, presented as an e-poster at the SFR Congress in December 2017 and in a poster at the American Society of Bone and Mineral Research Conference (ASBMR) in October 2018 and published in 2019 in Archives of Osteoporosis. The effectiveness specialized osteoporosis clinics is the subject of numerous publications. It therefore seems important to evaluate the effectiveness of our management, 3 years from the date of inclusion of patients in the osteoporosis clinic of our hospital.

NCT ID: NCT03986788 Enrolling by invitation - Cerebral Blood Flow Clinical Trials

Cerebral Blood Flow Distribution During Parabolic Flight-induced Microgravity

GraCer
Start date: October 1, 2018
Phase: N/A
Study type: Interventional

When astronauts return from space flight, they manifest a set of symptoms, the most striking of which is orthostatic intolerance, that is, the inability to stay upright. This orthostatic intolerance is related to cardiovascular adaptation and disappears in a few days, but the prospect of long-term space travel makes this maladaptation a major concern of space agencies, at a time when there is serious consideration to make " land "a ship on Mars. Previous studies suggest that brain vessel adaptation may contribute to spatial post-flight orthostatic intolerance. The question remains controversial because not all studies are consistent. These studies are all based on the measurement of blood flow in a single artery of the brain (the average cerebral, see cerebral circulation diagram) easily accessible with a Doppler ultrasound machine. Our team has good reason to believe that the adaptation of the cerebral vessels is not carried out in the same way in all the arteries of the brain and that in particular the arteries that irrigate the posterior and inferior parts of the brain are a major determinant. from cerebrovascular adaptation to orthostatism and that orthostatic intolerance is more specifically related to a decrease in blood flow in these arteries. On the other hand our team has shown that the external carotid artery plays, under certain conditions, a buffer role of the sudden variations of perfusion pressure of the brain. During the weightless phase of parabolic flight, part of the blood from the legs and abdomen "rises" to the thorax and this transfer of fluid induces changes in blood pressure and cardiac output that affect the cerebral circulation. From a cardiovascular point of view, it is the same thing for a seated subject to lie down, but the parabolic flight offers the unique possibility of achieving this transfer in a fraction of a second and thus allowing to study the immediate response of the cerebral circulation. . Investigators goal is therefore to quantify the changes in blood flow in the posterior and anterior territories of the brain (transcranial ultrasound) as well as in the internal carotid and vertebral (Doppler ultrasound) during changes in blood pressure and cardiac output induced by transfers. liquid resources associated with the transition to weightlessness. The oxidative stress generated by weightlessness has been identified as a determining factor in cerebrovascular deconditioning associated with orthostatic intolerance. In order to quantify the biochemical markers of this stress, a venous sample will be taken before and just after the parabolic flight.

NCT ID: NCT03964298 Enrolling by invitation - Uveal Melanoma Clinical Trials

Study of the Activity of PD-1 Inhibitors in Metastatic Uveal Melanoma

imMUno
Start date: November 2016
Phase:
Study type: Observational

Study of the activity of PD-1 inhibitors in metastatic uveal melanoma

NCT ID: NCT03891446 Enrolling by invitation - Ocular Hypertension Clinical Trials

Long-term Safety and Efficacy Extension Trial of Bimatoprost SR

Maia
Start date: March 27, 2019
Phase: Phase 3
Study type: Interventional

This study will evaluate the long-term safety and efficacy of Bimatoprost Sustained Release (SR) in patients with open-angle glaucoma or ocular hypertension who completed 1 of the 4 Phase 3 Bimatoprost SR studies (192024-091, -092, -093, or -095) and received Bimatoprost SR or who received commercial DURYSTA (Bimatoprost SR) in the open-label Phase 4 ARGOS study (MED-MA-EYE-0648) and completed (or exited early from) the study.

NCT ID: NCT03827512 Enrolling by invitation - Clinical trials for French Vascular Physicians

Arterial Doppler Waveforms Analysis in PAD

APP-Wave-PAD
Start date: December 1, 2018
Phase:
Study type: Observational

The main objective is to evaluate the differences of terminology used when describing arterial doppler waveforms. To assess the impact of an educational process

NCT ID: NCT03789825 Enrolling by invitation - Liver Diseases Clinical Trials

Population-based Study in Screening for Liver Fibrosis

LiverScreen
Start date: May 1, 2018
Phase:
Study type: Observational

Study to assess the prevalence of significant liver fibrosis in general population using Transient Elastography

NCT ID: NCT03763864 Enrolling by invitation - Monogenic Disorders Clinical Trials

Development of In Vitro Functional Assays From Primary Cells of Patients With Monogenic Diseases

OPERANDO
Start date: September 6, 2017
Phase: N/A
Study type: Interventional

The objective of this project is to build a collection of biological samples consisting of fibroblasts and primary keratinocytes from patients with orphan monogenic diseases and to use these cells in the customization of functional tests. The miniaturized tests we are setting up make it possible to distinguish patient cells from control cells. They can be used to test molecules or for the development of diagnostic tests. As part of the research protocol, the investigating physicians will be able to perform a skin biopsy on their patient included in the study. APTEEUS will isolate fibroblasts and keratinocytes and ensure their preservation. As part of the project, it is planned to preserve the biological samples collected and to preserve the collection after the end of the study. Skin fibroblasts and keratinocytes that are isolated from the biopsy are cells that can be preserved and amplified. They are a material of choice for the functional study of many monogenic diseases. This study will allow the adaptation of tools dedicated to the functional study of monogenic diseases in order to help in the research and development of new treatments for these diseases, but also to highlight and explain the inter-individual variability of symptoms and responses to treatments, and finally, to help in the development of diagnostic methods. Patients with orphan monogenic diseases whose genetic defect has been confirmed and for whom the study of the disease can be performed on fibroblasts, keratinocytes or cells derived from them, may be included in the study. Subjects, after information and consent, will undergo a skin biopsy. The sample will be sent directly to the promoter company APTEEUS, which will carry out all in vitro developments. The fibroblasts and keratinocytes will be preserved and will constitute a collection of cells "orphan monogenic diseases". The samples can be reused for new research in the same field.

NCT ID: NCT03683186 Enrolling by invitation - Hypertension Clinical Trials

A Study Evaluating the Long-Term Efficacy and Safety of Ralinepag in Subjects With PAH Via an Open-Label Extension

Start date: September 23, 2019
Phase: Phase 3
Study type: Interventional

Study ROR-PH-303, ADVANCE EXTENSION, is an open-label extension (OLE) study for participants with WHO Group 1 PAH who have participated in another Phase 2 or Phase 3 study of ralinepag.

NCT ID: NCT03662828 Enrolling by invitation - Kaposi's Disease Clinical Trials

Epidemiological Description of the Kaposi's Disease in France's Southeast

KAPOSI-1
Start date: August 1, 2018
Phase:
Study type: Observational

The purpose of this study is to evaluate the prevalence of the Kaposi's disease in France's southeast on 10 years (from 2007 to 2017)