Active clinical trials for "Coronavirus Infections"

Prompted by the current COVID-19 pandemic, the American Academy of Ophthalmology has recommended the use of telemedicine to continue ophthalmic care while maintaining patient and provider social distancing. As part of remote examinations, patients may be expected to perform home eye testing for visual acuity and the use of various home visual acuity charts have been proposed to provide clinicians with this vital data. However, the use of home visual acuity exams has not been validated in our patient population. This project aims to determine the efficacy and validity of measuring visual acuity at home with a printed-out ETDRS chart.

Molecular testing (e.g PCR) of respiratory tract samples is the recommended method for the identification and laboratory confirmation of COVID-19 cases. Recent evidence reported that the diagnostic accuracy of many of the available RT-PCR tests for detecting SARS-CoV2 may be lower than optimal. Of course, the economical and clinical implications of diagnostic errors are of foremost significance and in case of infectious outbreaks, namely pandemics, the repercussions are amplified. False positives and false-negative results may jeopardize the health of a single patient and may affect the efficacy of containment of the outbreak and of public health policies. In particular, false-negative results contribute to the ongoing of the infection causing further spread of the virus within the community, masking also other potentially infected people.

In Mexico the total number of confirmed cases of COVID-19 is 232, 000 and 28,510 deaths. Health workers are at high risk of COVID-19 infection. Their absence from work dramatically limits the ability to contain the disease. There is currently no vaccine to prevent the disease. Since the introduction to the vaccination schedule of the Bacillus Calmette-Guerin (BCG) live attenuated vaccine directed towards tuberculosis prevention, a decrease in infant mortality has been reported, not related only to tuberculosis. BCG vaccine has been hypothesized to have a non-specific role towards other unrelated pathogens such as viruses that cause airway disease, with reduced morbidity and mortality. In murine as well as in human models it has been shown to decrease the incidence of acute respiratory influenza infections. Likewise, in countries with a high endemicity for tuberculosis, the BCG vaccine reduces the incidence of respiratory infections by up to 80% . In healthy subjects, the BCG vaccine increases the production of proinflammatory cytokines in monocytes. Likewise, it increases the epigenetic response, causing an increase in the transcription of genes important in the antimicrobial response, as well as an improvement in cellular function. This is the first national clinical trial to evaluate prospectively the effect that the BCG vaccine offers towards the prevention and reduction of severity in cases of COVID-19.

COVID-19 is a new disease and therefore it is still not clear exactly how the virus affects the body and why people are affected so differently. It causes infection in the lungs and the virus can then attack blood vessels in the lungs and other organs to spark off an inflammatory process that can make a person very ill. It also can cause damage within tiny blood vessels that makes a person's blood thicken up and stop flow in vital organs. The investigators believe complement (which is a chemical in the body which can be harmful in excess) orchestrates the inflammation and thickening of the blood that can make a person sick. The investigators now need to know which of these complement chemicals are elevated in COVID-19 and compare to healthy volunteers, and assess whether the levels are higher in people with severe lung disease. The investigators believe that if levels are increased there are special treatments that can counteract them and potentially be an effective treatment for COVID-19. In this study the investigators will measure different parts of the inflammation process to better understand what may be causing severe disease and to see if there may be benefits from a new treatment to reduce inflammation

The present study aims to assess the determinants of health-related quality of life and long-term outcomes among survivors of hospitalization for Covid-19 in Brazil. The investigators will conduct a multicenter prospective cohort study nested in randomized clinical trials (coalition Covid-19 Brazil initiative) originally designed to assess the effects of specific Covid-19 treatments. Adult survivors of hospitalization due to proven or suspected SARS-CoV-2 infection will be followed up for a period of one year by means of structured telephone interviews. The primary outcome is one-year health-related quality of life assessed by the EQ-5D-3L. Secondary outcomes include all-cause mortality, rehospitalizations, return to work or study, physical functional status assessed by the Lawton & Brody Instrumental Activities of Daily Living Scale, dyspnea assessed by the modified medical research council dyspnea scale, need of long-term ventilatory support, symptoms of anxiety and depression assessed by the Hospital Anxiety and Depression Scale, and symptoms of posttraumatic stress disorder assessed by the Impact of Event Scale-revised.

This observational study aims at Assessment of the prevalence and types Psychiatric disturbances that affects patients with COVID-19 infection with and without previous psychiatric diseases. in addition to, Assessment of the types of Psychiatric disturbances in patients with COVID-19 infection in correlation to age, disease severity, co-morbid conditions and treatments applied

A Phase I/II, double-blinded, placebo-controlled, individually randomized trial to assess safety, immunogenicity and efficacy of the candidate Coronavirus disease (COVID-19) vaccine ChAdOx1 nCoV-19 in adults aged 18-65 years living with and without HIV in South Africa. The vaccine or placebo will be administered via an intramuscular injection into the deltoid muscle of the non-dominant arm.

The investigators plan to carry out an experimental study on the preventive effect of recombinant human interferon alpha nasal drops on the infection of 2019 new coronavirus in medical staff.

The outbreak of Covid-19 started several clinical trials and treatment experiments all over the world in the first months of 2020. This study investigates reports of adverse events related to used molecules, including but not limited to protease inhibitors (lopinavir/ritonavir), chloroquine, azithromycin, remdesivir and interferon beta-1a. Analyses of reports also include the International classification of disease ICD-10 for treatments in the World Health Organization (WHO) global Individual Case Safety Report (ICSR) database (VigiBase).

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 (-)".