Active clinical trials for "Coronavirus Infections"

The SARS-CoV-2 (COVID-19) infection is causing a global pandemic and a major health crisis in France. Immunity is the body's ability to defend itself against infectious agents such as viruses. The progressive acquisition by a large part of the population of immunity to defend itself against the COVID-19 virus is one of the main mechanisms by which a resolution of this pandemic is hoped for. Recovery from infection and protection from the virus is likely to depend on the development of antibodies (proteins produced by the body to neutralize infectious agents) and T-cells (a type of white blood cell in the immune system) that can stop the virus from multiplying and killing it. To date, the way and speed at which the T-lymphocytes active against the virus appear are not known. The development of biological tests to detect T-cells active against the virus in the blood of infected patients is therefore necessary. In this context, we propose you to participate in a study that will study the immune system's response against the sars-CoV-2 virus during and after COVID-19 infection.

Although clinical trials for approved COVID-19 vaccines demonstrated efficacy of the vaccine in preventing symptomatic infection, many questions about vaccine effectiveness, such as the effectiveness of COVID-19 vaccine in preventing asymptomatic infection, a surrogate for transmission, and duration of protection, can only be evaluated in real-world trials. The objective of the study is to evaluate COVID-19 vaccine effectiveness (Pfizer vaccine, and, if available, Moderna vaccine) in preventing infection in healthcare personnel in Israel. HCP who are Clalit members and working in Soroka, Beilinson, Meir, Haemek, Kaplan and Schneider hospitals, 18 years or older, and eligible to get COVID-19 vaccine according to Ministry of Health guidelines, will be recruited, regardless of their intention to get the COVID-19 vaccine. A baseline serology sample and respiratory sample will be collected. Participants will be asked to provide a respiratory sample weekly for 3 months, and then monthly for the remainder of the study. Participants will also have blood drawn at 1 month, 3 months, 6 months, 9 months and 12 months. Respiratory samples will be tested for SARS-CoV-2 by RT-PCR; serology will be tested for SARS-CoV-2 antibodies. The study will last for 12 months. For each participant, data will be extracted from the Electronic Medical Record for the period of the study and retrospectively from 2010.

It is unknown whether Coronavirus disease 2019 vaccines confer the same high level of protection in patients with kidney disease as reported for participants in recent trials, who were generally healthy. Objectives: To evaluate the safety and efficacy of Coronavirus disease 2019 vaccines in hemodialysis patients.

In order to assess the mother-to-infant and potential vertical transmission of SARS-CoV-2 infection in pregnant women, maternal and neonatal biological samples will be prospectively collected from women with confirmed or suspected COVID-19 at participating hospitals across Ontario. Samples will be tested for the SARS-CoV-2 serology and viral load. Outcomes for the study objective will be ascertained through the collection and testing of biological samples from the mother and/or infant. Specifically the investigators will: Assess maternal nasopharyngeal or oropharyngeal swab, vaginal mucosa, ano-rectal swab, amniotic fluid, placenta (including subamniotic swab), breastmilk, cord blood and neonatal nasopharyngeal swab for RNA particles of coronavirus, by ddPCR. Assess maternal serum for anti-coronavirus antibodies, by immunoassay. Examine the impact of coronavirus on the neonate with respect to serology and viral load, in addition to placenta pathology findings and ddPCR. Assess vertical transmission and the effect of coronavirus through placental pathology examination using placental pathology synoptic report.

A Randomized, Controlled, Phase III Study to Determine the Safety, Efficacy, and Immunogenicity of the Non-Replicating ChAdOx1 nCoV-19 Vaccine.

The study is designed as an open observational non-comparative study of Polyoxidonium®, lyophilizate for solution for injections and topical application, 12 mg in hospitalized patients with coronavirus disease (COVID-19).

The study will be conducted using nasopharyngeal swab specimens collected prospectively from individuals suspected of having the signs and symptoms of an acute respiratory tract infection caused by a respiratory virus. A series of standard viral culture tests validated for routine use in the clinical laboratory, and/or a series of PCR-based Laboratory Developed Tests (PCR-LDT) validated by a central reference laboratory will be used to verify the performance of the investigational artus Influenza A/B RT-PCR test and the QIAGEN ResPlex II Advanced Panel test. From each specimen five (5) aliquots will be prepared: (a) one aliquot will be tested in real-time using the assigned viral culture reference methods; (b) one aliquot will be used to extract nucleic acid in real-time for investigational testing; (c) one aliquot of the specimen will be stored at --70C for subsequent shipment to the reference laboratory for PCR-LDT testing, (d) one aliquot will be archived at -70C for subsequent follow-up by the reference laboratory (e.g., bi-directional sequencing of positive specimens), and (e) any remaining specimen will be stored for the Fresh vs. Frozen Study. The extracted nucleic acid generated from the second aliquot (i.e., "b" above) will be split and subjected to testing by both the artus Influenza A/B RT-PCR test and the ResPlex II Advanced Panel test.

coronavirus disease 2019 related pneumonia is causing acute respiratory failure and this is the most common reason for ICU admission. We have several different way for respiratory support. HFNC is one of the new technics for oxygen support. Our main purpose to observe the effect of HFNC on coronavirus disease 2019 patients' ICU stay and mortality.

The Middle East respiratory syndrome coronavirus (MERS-CoV) was identified in 2012 during the first Middle East respiratory syndrome (MERS) outbreak. MERS-CoV causes an acute lower-respiratory infection in humans, with a fatality rate of ~34.5%. The aim of the study is to assess the safety and immunogenicity of heterologous adenoviral-based vaccine against MERS - BVRS-GamVac-Combi.

In this trial, a total of 50 subjects were recruited; the test vaccines were divided into 3 groups, low-dose vaccine groups, high-dose vaccine groups, and placebo groups. The first-stage randomized participants in the low-dose group (20 cases) and the placebo group (5 cases) were evaluated for 7 days. After the 7-day safety data was evaluated and agreed by the DSMB, the second-stage study was conducted. Into the high-dose group (20 cases) and placebo group (5 cases) subjects; follow-up to 30 days, after the safety assessment by the investigator and consent, then inoculate the second dose. Observation was performed for 1.0 hour after the second dose. The researchers conducted a safety evaluation and agreed to follow-up after discharge.