Active clinical trials for "Coronavirus Infections"

This study is a case-control study to characterize the molecular and cellular anomalies of the olfactory epithelium of COVID-19 patients with isolated anosmia, by comparison with the olfactory epithelium of non-infected subjects.

Background: The human disease caused by SARS-CoV-2 is called COVID-19. In most cases, COVID-19 is a mild to moderate respiratory illness. But it can also be more severe and even lead to death. There is no vaccine to prevent SARS-CoV-2 infection. There is also no therapy to treat COVID-19. Researchers want to collect plasma from adults who have recovered from COVID-19, which may help them develop treatments. Objective: To collect anti-SARS-CoV-2 immune plasma from adult volunteers who have recovered from COVID-19. Eligibility: Males and females ages 18 to 70 who have a history of COVID-19 like illness or positive test for SARS-CoV-2, and have a minimum level of SARS-CoV-2 antibodies as specified by the study. Design: This study consists of 2 parts: 1) screening for SARS-CoV-2 antibody titer and eligibility to donate plasma and 2) plasma collection by apheresis. Study sites may participate in 1 part alone (either screening or plasma collection only) or both parts (screening and plasma collection). For screening part: Participants will be screened for their eligibility to join this research study with a medical history and physical exam. Their vital signs (blood pressure, heart rate, temperature, respiration rate) will be taken. Their weight and height will be recorded. They will give a blood sample for clinical laboratory tests of their general health and a research test for SARS-CoV-2 antibodies. They will discuss their history of COVID-19-like illness and any testing for SARS-CoV-2. They will be evaluated for their ability to donate plasma. For plasma collection part: Subjects meeting criteria for plasma donation and found to have high neutralizing antibody titers and who plan to donate plasma under this part of the study will be scheduled for 1 (and up to 20) plasma collection sessions. These will occur no less than 7 days apart. Prior to each donation, participants will have a brief physical exam and complete a donor history questionnaire. They will be asked about any current SARS-CoV-2 infection symptoms. At each donation, plasma will be taken through a standard apheresis procedure. For this, blood will be withdrawn through a needle placed in the participant's arm vein. A machine will separate the plasma from the red cells. The red cells will be returned to the participant, either through the same needle or through a second needle in the other arm. Participation may last up to 240 days.

Prospective, observational, clinical investigation of PMX cartridge use in COVID 19 patients with septic shock

The purpose of this study is to evaluate the sensitivity and specificity of several marketed commercial or prototype test kits for antibody to SARS-CoV-2. The focus will be on rapid-format, point-of-care antibody test kits that detect both IgM and IgG antibodies to recombinant viral proteins. Note: No voluntary enrolment into this study will be conducted; all testing is to be conducted anonymously.

The investigators seek to derive and validate a clinically useful risk score for patients with Coronavirus Disease 2019 to aide clinicians in the safe discharge of patients.

Covid-19 mainly affects the respiratory system. Multiple organ dysfunction and a particularly progressive respiratory insufficiency along with a widespread coagulopathy presumed to be due to infection-associated inflammation and the resulting cytokine storm, are strongly associated with high mortality rates. In this study, the association between thrombosis risk and clinical presentation of Covid-19 is investigated.

The objectives of this intermediate-size expanded access protocol are to assess the safety and efficacy of remestemcel-L in participants with MIS-C associated with COVID-19.

The purpose of this study is to gain on-going COVID-19 feedback/data to drive timely action locally and nationally in order to mitigate transmission. Data will be deidentified and consolidated to create a large national longitudinal database.

Covid-19 has spread rapidly throughout the world causing widespread panic, death, and injury. While this virus is the provocateur, it is often the patient's own disproportionate immune response which deals the most devastating (and often fatal) damage. A specific part of the immune system, known as the complement, has been shown to cause such damage in other types of coronaviruses. In the SOLID-C19 study, Soliris (Eculizumab) will be used to modulate the activity of the distal complement preventing the formation of the membrane attack complex. By modulating this portion of the immune response, mortality can be halted while the patient has time to recover from the virus with supportive medical care.

Background Anal fissure is one of the most common anorectal problems. After an outbreak of coronavirus disease (COVID-19) has rapidly spread from China to almost all over the world, it nearly affected all countries. In spite of its typical presentation in the form of fever, cough, myalgia, fatigue and pneumonia, other GIT manifestations were reported. We found some of COVID-19 survivors who had complained from anal fissure problem. The aim of this study was to report the prevalence of acute anal fissure among COVID-19 patients, its possible risk factors and outcome. Methods This is a retrospective cross-sectional study which was conducted over three months from the start of September 2020 to the end of November 2020 at Mansoura university isolation hospital, on COVID-19 patients' who were diagnosed with anal fissure. Those who survived and were discharged home safely were telephone called to pick up whether they suffered from any symptoms of anal pain, difficulty in defecation suggesting anal fissure, in order to identify their outcomes, the risk factors for anal fissure development and how they were managed. Results A total of 176 patients were enrolled in this study. Patients were categorized into two groups. The first group included patients who developed anal fissure (n=65) and the 2nd group included patients who did not develop anal fissure (n=111). No significant difference was noted in demographic data apart from the age which was younger in the fissure group. The incidence of anal fissure was 36.9% of total population. The majority of patients' anal fissure problem resolved spontaneously after patients improved from the COVID symptoms without receiving any treatment (43.1%). Conclusion Anal fissure is quite common problem after COVID-19. Young and middle age patients are more vulnerable to develop anal fissure after COVID-19 infection.