Active clinical trials for "Coronavirus Infections"

Observational program, double-blind, placebo-controlled to study the preventive efficacy of the BiVac polio (Oral polio vaccine, divalent, live attenuated of types 1 and 3 vaccine against the incidence of acute respiratory infections, including COVID-19

Popular topic:Clinical trials of the consistency and non-inferiority bridging between batches of recombinant new coronavirus vaccine (CHO cells) Research purpose:Main purpose:1)To evaluate the interbatch consistency of immunogenicity of three batches of recombinant Novel Coronavirus vaccine (CHO cells) following process validation in 18-59 year olds. 2)To evaluate the non-inferiority of immunogenicity of recombinant Novel Coronavirus vaccine (CHO cells) from the combined batch and pilot scale batch after process validation in 18-59 years of age. Secondary purpose:1)To evaluate the safety of each batch of recombinant Novel Coronavirus vaccine (CHO cells) in patients aged 18-59 years.2)To evaluate the non-inferiority of immunogenicity of recombinant Novel Coronavirus vaccine (CHO cells) from the combined batch and commercial batch after process validation in 18-59 years of age. Overall design:This trial adopts a randomized, double-blind, parallel controlled trial design. Study population:The study involved people aged 18-59. Test groups:A total of 1680 subjects were enrolled in this clinical trial and randomly divided into 4 groups at 1:1:1:1 (pilot scale batch: process verification batch 1: process verification batch 2: process verification batch 3) , 420 cases per group.

The principal aim of this interventional, multicentre study is to compare the impact of a follow-up by monthly telephone dietetic consultations, started 3 months after discharge from hospital, for a period of 3 months, on the energy intake in patients elderly people recently hospitalized for Coronavirus disease 2019 (Covid-19), Coronavirus disease Positive group "Covid (+)", or not, Coronavirus disease Negative group"Covid (-)". The main outcome measure is to compare the total energy intake at 6 months, after 3 months of dietary consultations, between Coronavirus disease Positive group "Covid (+)" and Coronavirus disease negative group "Covid (-)".

Coronavirus disease 2019 (COVID-19) can cause variable symptoms ranging from mild common cold-like symptoms to severe life threatening pneumonia. Recent studies show severe outcomes of COVID-19 patients specially in males who suffer from androgenetic alopecia, would be significant and is of particular interest of this study and could help further support the hypothesis that anti-androgen therapy might represents an additional potential intervention against severe COVID-19.

Coronavac, one of the vaccines developed within the scope of combating the COVID-19 pandemic that has surrounded the world for a year, started to be applied in the first healthcare workers in our country. In this important step taken to end the pandemic, information on vaccines is still limited. Most vaccines, including the Coronavac vaccine, are applied with approval for emergency use before phase 3 studies are fully completed. While investigating the effect of the vaccine on the virus, possible side effects should also be considered. In this context, it is not known whether the vaccine has an effect on the menstrual cycle, especially of women of reproductive age. Our primary aim in our study is to evaluate the effect of the vaccine on the menstrual cycle and if the vaccine has any effect on the menstrual cycle, what kind of changes this effect causes.

The new Severe acute respiratory syndrome coronavirus (SARS-CoV-2) named coronavirus disease 2019 (COVID-19) is currently responsible for a pandemic spread of febrile respiratory infections, responsible for a veritable global health crisis. In adults, several evolutionary patterns are observed: i) a/pauci-symptomatic forms; ii) severe forms immediately linked to rare extensive viral pneumonia; and iii) forms of moderate severity, some of which progress to secondary aggravation (Day 7-Day 10). Children can be affected, but are more rarely symptomatic and severe pediatric forms are exceptional. Like some other coronaviruses (SARS-CoV and Middle East respiratory syndrome coronavirus (MERS-CoV)), these differences in clinical expression could be based on a variability in the immunological response, notably either via inhibition of the type I interferon (IFN-I) response, or on the contrary an immunological dysregulation responsible for a "cytokine storm" associated with the aggravation. Little is known about the impact of these innate immune response abnormalities on the adaptive response. In addition, certain genetic factors predisposing to a state of "hyper-fragility" and certain viral virulence factors could also be predictive of the clinical response. In this context, the main hypothesis is that the virological analysis and the initial biological and immunological profiles are correlated with the initial clinical presentation of COVID-19 infection. In particular, children forms and pauci-symptomatic disease in adults may be linked to a more robust innate immune response, including better production of IFN-I.

SYSTEMIC INFLAMMATION HAS BEEN ASSOCIATED WITH SEVERE COVID-19. HYPONATREMIA CAN RESULT FROM INFLAMMATION DUE TO NON-OSMOTIC STIMULI FOR VASOPRESSIN PRODUCTION. IN THIS PROSPECTIVE COHORT STUDY WE ANALIZED DATA FROM PATIENTS WITH COVID-19 AND THE ASOCIATION WITH HYPONATREMIA AND CLINICAL OUTCOMES.

While many people with COVID-19 suffer from respiratory disease, there is growing evidence that the virus also affects other organs. The purpose of this study is to better understand the effects of COVID-19 on the lungs and other organs. The study investigators have developed new techniques in Magnetic Resonance Imaging (MRI) to scan the lungs, heart, brain and liver. The study investigators hope to learn more about how the virus causes inflammation in these organs and how this inflammation changes over time as people recover from COVID-19 illness. The study aims to enroll 228 people in Alberta. Participants will undergo one or more MRI scans and have blood testing at one or more time points to assess for inflammation, kidney function, liver function and possible heart injury. Participants will also undergo testing to assess sense of smell, cognition (thinking and memory), spirometry (breathing test for lung function) and and exercise tolerance (walk test). The study investigators hope this study will help us learn more about the long-term risks of COVID-19 disease.

The aim of this study is to analyze whether COVID-19 causes a delay in the diagnosis of gastric cancer patients particularly in the TNM staging of the tumor, or not and to compare the number of newly diagnosed patients with gastric cancer before and during the COVID-19 pandemic period.

COVID-19 infection is the cause of the current pandemic, responsible for loss of life and disability at a rate unseen before. Among survivors, the infection may cause lasting damage, such as permanent loss of lung function. This study aims to investigate if pulmonary rehabilitation done via supportive devices may reduce or prevent lung function injury. Patients will be chosen among COVID-19 patients who require hospitalization. Patients then will be divided into two groups, those who had used said devices, and compare them to those who had not used them for any reason. After a month, two groups will be evaluated by respiratory function tests, which are expected to provide the results required for a proper comparison. Pulmonary rehabilitation provided by the supportive devices is expected to either lessen or eliminate a loss of pulmonary function over time, compared to the group who did not use them.