Active clinical trials for "COVID-19"

The purpose of this clinical trial is to determine the efficacy of Previfenon® (EGCG) to prevent COVID-19, enhance systemic immunity, and decrease the frequency and intensity of selected symptoms when used as pre-exposure chemoprophylaxis to SARS-CoV-2.

Hypothesis: Serum Vitamin D (25(OH)D) is significantly lower in severe versus non-severe COVID-19 infections and that this is a function of ethnicity. There is an association between vitamin D status and various cytokines (pro-inflammatory molecules). The primary objective of this research is to provide a snap shot of vitamin D status in patients from the South-East London area by age, sex, ethnicity and BMI and demonstrate ethnic differences in vitamin D status as well as its associations with severe vs non-severe COVID-19 infections. The secondary objective is to determine if there is an association between vitamin D status and various cytokines (pro-inflammatory molecules) and severity of disease.

A cohort study of women who deliver at select sites on randomly selected days in 2019 and 2020, and all confirmed COVID-19 infections among pregnant or immediately postpartum women in 2020. The study population includes approximately 24,400 deliveries on randomly selected days in 2019 and 2020, and an additional 1000-2100 confirmed COVID-19 infections among pregnant women or immediately postpartum.

It will be performed a randomized, multicenter, triple-masked, placebo-controlled clinical experiment to determine the effectiveness and safety of the administration to of ivermectin at a dose of 200 mcg/kg once a week for 7 weeks in a prophylactic treatment against SARS COV-2 infection in 550 Colombian health workers during the COVID-19 pandemic.

There is insufficient knowledge about transmission routes and the effectiveness of general protective measures to prevent infection, such as the closure of schools or the wearing of mouthguards. This will be illustrated using the example of the COVID-19 outpatient clinic in Solingen and the positive COVID-19 tests registered there. Another aspect we would like to address in this study is the number of COVID-19 tests performed against the background of political events or dramatic accumulations of COVID-19 cases in other parts of Germany or Europe. Do speeches by political leaders about the COVID-19 situation or a very strong regional spread of infection elsewhere have an impact on the frequency with which people react sensitively to suspicious symptoms and undergo testing for infection?

This cohort study aims at prospectively collecting detailed clinical information on patients positive to or suspected of COVID-19 visiting Italian emergency departments (EDs). The objectives of the study are: To monitor and describe the COVID-19 patients visiting Italian EDs. To assess the prognostic impact of demographics, clinical characteristics, risk factors and pre-existing diseases. To develop a predictive model, providing estimates of the prognosis using multiple relevant factors. To construct a detailed database to enable comparative effectiveness research (CER), with the goal of generating hypothesis of efficacy and effectiveness of treatments, therapies and interventions, in the management and treatment of COVID-19 patients.

The COVID-19 pandemic brought new challenges to our nationwide healthcare system, with rapid escalation of the number of affected individuals over a handful of weeks. From March 13, a first set of measures was taken to minimise the spread of the virus, which largely impacted societal and economical daily life. A view days later, on March 17, the country was put in "lockdown" and all non-urgent medical treatments were cancelled or postponed. As recommended by the major scientific fertility societies, all non-ivf fertility treatments were discontinued abruptly, whereas started ivf stimulations were continued until oocyte aspiration, where after a freeze-all strategy was applied. There is little information available for women aiming for pregnancy or embarking on assisted conception. Given the modelling of the pandemic, including the time to peak and subsequent tail, considerable delays in conception to substantially attenuate risk may be required, which will inevitably impact patients wellbeing and overall success rates. A questionnaire was developed to explore patients perspectives on different aspects of their fertility treatment during the COVID-19 pandemic. The questionnaire contains the following sections: demographic variables; questions regarding the fertility history of the respondent; questions regarding the impact of fertility treatment cancellation / postponing fertility treatment during COVID-19 on their life, psychological wellbeing and relationship; questions regarding continuing medical treatment on their own, or seeking treatment elsewhere; questions regarding the satisfaction of measures taken by their fertility center regarding the COVID-19 pandemic; questions regarding expectations of further treatments, with focus on safety issues related to the COVID-19 pandemic. Eligible patients will be selected electronically from our database and digital agenda. After selection, patients will be contacted via email to participate. Two reminders will be send in case the questionnaire is not filled out: a first reminder after one week, a second reminder after two weeks.

The present study aims to assess the impact of exercise training, physical activity, and sedentary lifestyle on clinical outcomes in surviving patients infected with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Therefore, this study will evaluate cross-sectionally and through a questionnaire in Portuguese and English on the internet, whether physically active patients have better outcomes for the disease such as shorter hospital stay, lesser symptoms, lesser need for mechanical ventilation, and medications.

Currently, limited data is available about patients with HIV in the context of the COVID-19 pandemic. People with HIV who have not achieved viral suppression through antiretroviral treatment may have a compromised immune system that leaves them vulnerable to infections and disease progression. However, little is known about the presentation and clinical outcomes of patients with HIV and SARS-CoV-2. Our aim is to characterize the clinical presentation and disease course of COVID-19 in patients with HIV.

The investigators propose to select all COVID 19 patients attended in any health center (with in hospital beds), who have been discharged or have died at the time of the evaluation. The main objective of the present study is to carefully characterize the clinical profile of patients infected with COVID-19 in order to develop a simple prognostic clinical score allowing, in selected cases, rapid logistic decision making (discharge with follow-up, referral to provisional/field hospitals or admission to more complex hospital centers). As secondary objectives, the analysis of the risk-adjusted influence of treatments and previous comorbidities of patients infected with the disease will be performed.