There are more than 498,563 clinical trials published worldwide with over 60,000 trials that are currently either recruiting or not yet recruiting. Use our filters on this page to find more information on current clinical trials or past clinical trials (free or paid) for study purposes and read about their results.
The aim of this study is to evaluate the safety and efficacy of autologous adipose-derived mesenchymal cells for treating confirmed or suspected patients with SARS-CoV-2 and compromised respiratory function requiring hospitalization. The hypothesis of the Study is autologous adipose-derived mesenchymal cells given IV to eligible patients will improve clinical outcomes of COVID 19 positive patients with severe pneumonia or ARDS by reducing or avoiding cytokine storm.
Migraine is a chronic neurological disease characterized by recurrent moderate to severe headaches often in association with a number of autonomic nervous system symptoms. Migraines are believed to be due to a mixture of environmental and genetic factors. About two-thirds of cases run in families. Changing hormone levels may also play a role, as migraines affect slightly more boys than girls before puberty, but about two to three times more women than men after puberty. The risk of migraines usually decreases during pregnancy. The exact mechanisms of migraine are not known. It is, however, believed to be a neurovascular disorder. The primary theory is related to increased excitability of the cerebral cortex and abnormal control of pain neurons in the trigeminal nucleus of the brainstem.
The COVID-19 emerging disease due to a novel coronavirus (SARS-CoV-2), started in Wuhan, China, last December, 2019. In the past three months, the virus has spread rapidly worldwide to reach the pandemic threshold. Research has since been carried out and is intensifying in order to describe the clinical characteristics of infected patients, to identify the prognostic factors of acute respiratory distress syndrome [ARDS] and the death; and to assess the effectiveness of new antivirals and therapeutic strategies to treat COVID-19. Treatments currently being investigated include: - Potentially effective treatments: (hydroxy)chloroquine, Remdesivir, Lopinavir, Ritonavir +/- IFN-ß-1a (currently evaluated in the European discovery trial), methylprednisolone in patients with ARDS; - Potentially harmful treatments: antihypertensives such as converting enzyme inhibitors and angiotensin receptor antagonists. We made the hypothesis that (1) patients receiving ARBs or ACEi's have a higher risk to present a serious COVID-19 infection disease and (2) patients receiving synthetic AMD (e.g. HCQ and CQ) have a lower risk to present a serious covid19 infection disease. Using data from the French insurance health database (SNDS) and hospital discharge database (PMSI), our objectives are - Main objective: To assess the risk of moderate to serious COVID-19 infections in patients using synthetic anti-malarial drugs (AMD) or anti-hypertensive drugs (Angiotensin receptor-blocking/Angiotensin-converting-enzyme inhibitors). - Secondary objective : To examine the risk of moderate to serious COVID-19 infections according of age, sex, co-morbidities, level of exposure of AMD, geographical locations and underlying comorbidities. This in order to: - To prevent moderate to serious COVID-19 infections in at-risk population (diabetes, elderly, respiratory failure population) using synthetic AMD. - To prevent moderate to serious COVID-19 infections in at-risk population stopping angiotensin receptor-blocking and angiotensin-converting-enzyme inhibitors.
The current available diagnostic methods used for the detection of COVID-19 takes up to 4 hours. In some cases, these diagnostics tests make take up to a couple of days. As it is highly contagious, people who are in close contact with the infected person are at high risk of being infected. COVID-19 is transmitted through respiratory droplets produced when an infected person coughs or sneezes. The desire for rapid detection of COVID-19 has become an immediate necessity. The purpose of Kaligia Biosciences' saliva monitoring device (RBA-2) is to detect the presence of the COVID-19 virus in human saliva. The RBA-2 uses Raman Spectros-copy to detect the coronavirus. Once the sample is scanned successfully, the spectra contains the response of the component present in human saliva and provide results in a matter of minutes, rather than hours or days.
In recent decade, a major improvement in vitreoretinal surgery was the use of small gauge surgical systems that improved the safety of vitrectomy and also reduced the surgical time. However, there were still some concerns regarding small gauge vitrectomy system, especially 27-gauge system, in the stability of its instruments and the efficacy of removing vitreous during surgery. Although there were some studies that had reported the surgical outcomes of 27G vitrectomy system, none had focused on patients with high myopia. The highly myopic patients usually had thinner sclera, which was a risk factor for wound leakage after sutureless vitrectomy, they also had longer axial length which would make the surgical procedure more difficult especially in macular surgery. Based on previous clinical finding, gas leakage was 36.4% in 25G , while 27G sclerotomy showing less leakage comparing to larger gauge sclerotomy, the investigators believe 27G may have its clinical advantages in overcoming the thinner sclera of high myopia, and show the superiority of leakage control. Hypothesis: The 27G vitrectomy system has lower sclerotomy wound leakage rate compared with 25G system
There is very little data so far to determine whether people living with HIV (PLWHIV) are at greater risk of COVID-19 acquisition or severe disease. HIV infection is associated with deficiencies in both humoral and cell-mediated immunity that could potentially alter the course and severity of common infections. The investigators will study the correlation between clinical and immunovirological data. The singularity of this work is to have an in-depth immunovirological approach linked to the clinical characteristics in COVID-19 HIV co-infected patients. COVIDHIV is the only study to date to offer this combined approach in PLWHIV. This protocol is a historical and prospective cohort study of PLWHIV presenting COVID-19 The primary objectives are to describe the course of COVID-19 disease in patients infected with HIV
There is an urgent need to understand the outcomes of COVID-19 infected patients regarding the thromboembolic venous disease. Capturing real-world data and sharing Spanish national experience will inform the management of this complex group of patients, improving their clinical care. Interventions are needed to reduce both the incidence and severity of COVID-19. Although it shares characteristics with other similar viruses that also arose in outbreaks, the physiological mechanisms of the virus and its responses on the host are not yet fully known. There are indications that the clinical picture of this disease is in a procoagulant state, with possible increase in episodes of thromboembolic disease. This study aims to analyze the influence of COVID-19 on the incidence of deep vein thrombosis (DVT) in lower and upper limbs, and the variation in the clinical presentation of COVID-19, as well as to provide new evidence applicable to the clinical management of these patients and the establishment of prognostic factors that help early take therapeutic decisions. To this end, an observational, multicenter, national cohorts study will be carried out, sponsored by the Spanish Society of Angiology and Vascular Surgery (SEACV) and the Spanish Chapter of Phlebology and Linfology through its Vascular Research Network (RIV), which will collect demographic variables, comorability, concomitant treatment, analytical status and complementary and ultrasound diagnostic tests, parameters of clinical evolution, therapeutic and complications and mortality to 30 days. All national centers you wish to participate through a secure server that will be accessed through the SEACV and CEFyL website. The global community has recognised that rapid dissemination and completion of studies in COVID-19 infected patients is a high priority, so we encourage all stakeholders (local investigators, ethics committees, IRBs) to work as quickly as possible to approve this project. This investigator-led, non-commercial, non-interventional study is extremely low risk, or even zero risk. This study does not collect any patient identifiable information (including no dates) and data will not be analysed at hospital-level.
This study evaluates the safety and performance of a new vascular graft made of POSS-PCU as a vascular access conduit for haemodialysis. 30 patients requiring access for dialysis will be enrolled and monitored at regular intervals for 18 months.
The purposes of this study is 1. To establish the validity of CEUS to measure renal perfusion by comparing it against ASL-MRI in young and older healthy volunteers, and generate a normative dataset of CEUS measures of renal perfusion. 2. Establish proof of principle for the use of CEUS to measure renal perfusion in the acute phase of AKI, demonstrating its feasibility and potential clinical utility. We will do this by performing daily CEUS measurements for up to five days in a cohort of people with AKI stage 3, commencing as close to onset. of AKI as possible, correlating with clinical data and following outcomes until 90 days.
Audiological evaluation performed to patients on hyperbaric oxygen therapy to see its effects on middle ear pressure