Active clinical trials for "COVID-19"

Of the 1,900,000 Canadians who have been infected by COVID-19, 8 to 15% will continue to experience COVID-19 related symptoms well after 12 weeks. The persistence of such symptoms is now defined as "long COVID" syndrome. Current evidence does not provide a clear understanding of the physical and cognitive impairments and functional limitations that persons with long COVID present. The objectives of this project are to describe the physical and cognitive impairments and functional limitations experienced by people with long COVID and compare the evolution over 6 months of people from three separate groups: a group of people with long COVID (long COVID Group), another group of people who contracted COVID-19 but did not experience persistent symptoms (acute COVID Group), and a group of people who did not contract COVID-19 (Control Group). One hundred and twenty adults in each of the three groups will be recruited and will take part in three evaluations within 6 months (baseline and 3 and 6 months after baseline). At baseline, all participants will complete questionnaires on sociodemographics, COVID symptomatology and comorbidity, and self-reported questionnaires on quality of life, functional status, sleep, pain-related disabilities, anxiety, depression, fatigue and cognitive function. Then, physical and cognitive tests will be performed in a laboratory to provide complementary results on impairments and functional limitations. Finally, participants will wear a fitness tracker watch to monitor their activity and sleep for 7 days. The participants will complete the same measures (questionnaires, lab measures, fitness tracker watch) at 3 and 6 months after baseline evaluations. This project will lead to a better understanding of the impairments/limitations experienced following COVID-19. Hence, these results will allow to identify the interventions needed by the population and ensure these are offered through effective healthcare pathways.

NEUROCOVID is a prospective multicenter study comparing the proportion of patients with SARS-CoV-2 viral RNA at the level of the olfactory clefts in a group of cases compared to a group of controls as well as the correlations between the virological and cellular abnormalities observed in the olfactory mucosa and the severity of the clinical neurological profile

A Clinical Study to Evaluate the Safety and Immunogenicity of Sequential Immunization of Recombinant SARS-CoV-2 Fusion Protein Vaccine (V-01) in Healthy Adults Aged 18 Years and Older After the Vaccination of 2 Doses of Inactivated Vaccines

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a novel coronavirus causing coronavirus disease 2019 (COVID-19), which has been a global pandemic since March 2020. According to WHO, more than 289 million cases have been confirmed worldwide, with just over 5.4 million reported deaths as of January 2022. SARS-CoV-2 variants continue to emerge, with the omicron variant causing the increased surge in cases. Currently, Johns Hopkins University of Medicine reports a case fatality rate of 1.5% for the United States. COVID-19 infections may be asymptomatic in some cases, while most cases cause mild to moderate illness with respiratory and flu-like symptoms. However, a significant number of COVID-19 cases develop severe life-threatening illness involving severe pneumonia and acute respiratory distress syndrome (ARDS), requiring admission to the intensive care unit (ICU) Although there have been breakthroughs in the treatment for COVID-19, most of these are directed at mild-to-moderate disease rather than patients with severe disease on mechanical ventilators. There is still a need for novel and effective treatment options in severe COVID-19 illness with continued vaccine hesitancy, decreased social distancing, and new emerging variants. Centhaquine is a first-in-class resuscitative agent for the hypovolemic shock that is approved for marketing in India. Centhaquine has been found to be an effective resuscitative agent in rat, rabbit, and swine models of hemorrhagic shock. Its safety and tolerability have been demonstrated in a human phase I study in 25 subjects (CTRI/2014/06/004647). Clinical phase II (CTRI/2017/03/008184) and phase III (CTRI/2019/01/017196) results indicate that centhaquine is a novel first-in-class, highly effective resuscitative agent for hypovolemic shock. Centhaquine provided hemodynamic stability and significantly improved acute respiratory distress syndrome (ARDS) and multiple organ dysfunction score (MODS) in clinical trials conducted in India. A total of 155 patients with hypovolemic shock have been studied (combined phase II and III). Centhaquine is safe and reduced the mortality from 10.71% in patients receiving standard treatment to 2.20% in patients that received centhaquine (odds ratio 5.340; 95% CI 1.270-26.50; P=0.0271). In a phase 3 study of hypovolemic shock, ARDS and MODS were secondary endpoints, and centhaquine reduced both with a significant p-value.

Hypotheses: Severe new-onset headache after Covid-19 vaccine occur in a minor subset of vaccinated individuals. Immunological reactivity with activation of trigeminal nociceptors can be among the mechanisms in severe headaches after Covid-19 vaccines. Biomarkers in blood and CSF and imaging findings can be used to assess severe new-onset headache after Covid-19 vaccines. The main aim of the project is to describe the characteristics of severe new-onset headache after Covid vaccine and the treatment effects. Secondary aim: Investigate potential mechanisms and analyse biomarkers to predict treatment effects. To assess at baseline and 6-month follow-up the rate of brain MRI pathology. To assess the change xof brain 18F-FDG PET metabolism from baseline and 6-month follow-up To assess the levels of brain specific biomarkers To assess the level of blood specific biomarkers Duration of Study participation: Enrollment: 24 months Follow-up: at 3 and 6 months after inclusion. For those with continued severe headache regular 3-month controls are planned during the study. Total study duration 24 months

aim of this research is to evaluate the effects of FFP2/N95 masks on peripheral oxygen saturation and pulse rate in dental professionals

The objective of the COVID-19 Vaccines International Pregnancy Exposure Registry (C-VIPER) is to evaluate obstetric, neonatal, and infant outcomes among women vaccinated during pregnancy with a COVID-19 vaccine. Specifically, the C-VIPER will estimate the risk of obstetric outcomes (spontaneous abortion, antenatal bleeding, gestational diabetes, gestational hypertension, intrauterine growth restriction, postpartum hemorrhage, fetal distress, uterine rupture, placenta previa, chorioamnionitis, Caesarean delivery, COVID-19), neonatal outcomes (major congenital malformations, low birth weight, neonatal death, neonatal encephalopathy, neonatal infections, neonatal acute kidney injury, preterm birth, respiratory distress in the newborn, small for gestational age, stillbirth, COVID-19), and infant outcomes (developmental milestones [motor, cognitive, language, social-emotional, and mental health skills], height, weight, failure to thrive, medical conditions during the first 12 months of life, COVID-19) among pregnant women exposed to single (homologous) or mixed (heterologous) COVID-19 vaccine brand series from 30 days prior to the first day of the last menstrual period to end of pregnancy and their offspring relative to a matched reference group who received no COVID-19 vaccines during pregnancy.

No additional risk factors have been identified in patients with Inherited Metabolic Diseases (IMD) for contracting or presenting complications of COVID-19 compared to the general population. Yet, IMD patients have cell/tissue alterations that could constitute a potential direct or indirect target for the virus. We do not know the impact of this infection on patients suffering from MHM, nor the possible effect of specific treatment of MHM on the evolution of COVID-19. This study will collect French IMD patients having or having had COVID-19 infection. The main objective is to estimate among IMD patients contracting COVID-19 the frequency of disease aggravation or metabolic decompensation. The secondary objectives will be : a. to evaluate the incidence of COVID-19 diagnosed in a given group of IMD when the number of patients with this IMD is known (Urea Cycle Deficiency, Gaucher Disease). b. to evaluate the impact of IMD on the and severity of COVID-19 infection

Current data in the literature demonstrate that the immune response to CoV-2-SARS is much more complex than initially assumed. In fact, beyond the humoral response, including the existence of neutralizing CAs, the adaptive lymphocyte T-type immune response also appears to play an important role in controlling the infection and reducing the severity of the disease. At this stage, the analysis of this T response is still rudimentary and underdeveloped, but it seems crucial to be able to analyze it effectively in COVID-19 patients, which could help predict the evolution of the infection. It is also currently difficult to know the evolution of this response over time and especially after the resolution of the infection. To this end, we will analyze the T lymphocyte response (ELISPOT and QUANTIFERON) based on the secretion of IFN (Th1) and IL-4 (Th2) by CoV-2-SARS specific T cells from COVID-19 patients. We will compare the T response to the quality of the systemic and mucosal humoral response. Finally, we will evaluate in parallel two new biomarkers of the severity of COVID-19: plasma calprotectin and the presence of antibodies to type 1 IFN antibodies.

This study is a single-center, open-label, randomized controlled clinical study to evaluate the effect of Paxlovid on the virus-negative time and disease progression in uremic patients infected with SARS-CoV-2 (omicron variants). This study will enroll maintenance hemodialysis patients infected with SARS-CoV-2 (omicron variants). After signing the informed consent form, the qualified subjects will be randomly stratified 1:1 to standard-of-care (SOC) or SOC plus Paxlovid for five days.