View clinical trials related to Covid19.
Filter by:Background: The aim of this study is to investigate the impact of the COVID-19 pandemic on the education of dental students in Turkey, the reasons that affect the psychological attitudes of students towards this disease, stress factors and the effect of these factors on vaccine acceptance. Methods: The survey was applied online and consisted of questions aimed to find out the demographic characteristics, educational status, anxiety-stress factors, and reasons for students' decision behind COVID-19 vaccine administration. The psychological impact of COVID-19 was assessed by means of the Generalised Anxiety Disorder-7 scale (GAD-7). Standard descriptive statistics, the chi-square test and independent samples t test were used for statistical analysis.
The study will evaluate the clinical efficacy of different dosing regimens of the Moderna COVID-19 mRNA vaccine (100 mcg) in preventing COVID-19 disease in people who are living with HIV or have comorbidities associated with elevated risk of severe COVID-19, with the different vaccine regimens assessed determined by whether the participant had evidence of prior SARS-CoV-2 infection at enrollment.
The CONFIDENT Study is an online three-arm randomized trial that aims to help long-term care workers in the United States feel more confident about the Coronavirus Disease 2019 (COVID-19) vaccines. The study will compare two different interventions to usual online information (website of the Centers for Disease Control and Prevention). The first intervention is a Dialogue-Based Webinar where people can interact and ask questions about the vaccines. The second intervention is a Social Media Website that will feature curated content about the vaccines from popular social media platforms. Participants will be asked to completed four online surveys. The first survey will be completed pre-intervention and immediately upon study enrollment (Time 0). Participants will be randomized to a trial arm at the end of the Time 0 survey. Intervention follow-up surveys will be completed 3 weeks post-randomization (Time 1), three months post-randomization (Time 2), and 6 months post-randomization (Time 3).
The COSI BAIR trial will involve approximately 60 children, aged 5 to 8 years old, comprising a subset of participants from the Melbourne Infant Study BCG for Allergy and Infection Reduction (MIS BAIR) randomised controlled trial. The overall aim of this trial is to investigate the specific and heterologous effects of COVID-19 vaccination on immunity in children. COSI BAIR will aim to recruit its participants from the MIS BAIR Bacillus Calmette-Guérin (BCG)-naïve group. These children will be followed up until 28 days after their final Coronavirus Disease 2019 (COVID-19) vaccination. Venous blood samples will be collected at two study visits, at Murdoch Children's Research Institute (MCRI): 1. Day 0 - baseline (day of COVID-19 vaccination #1), and 2. Day 84 (28 days after COVID-19 vaccination #2).
In this study, the investigators will examine the extent to which having suffered coronavirus disease 2019 (COVID19) impacts one's sensibility to hypoxia by means of the 'Richalet test'. The aim of the study is to formulate recommendations for advice in altitude mountain medicine for patients having suffered COVID19. To determine any eventual changes in response to hypoxia, performances by participants having suffered COVID-19 and participants having stayed free of COVID-19 will be both compared intra-individually with previous performances (pre-COVID-19 pandemic) and between both groups of subjects. The investigators hypothesize that patients having suffered COVID19 might perform differently on the cardiopulmonary exercise test compared to before the illness. Based on recent research on COVID19 pathophysiology and -patient follow-up, it might be expected that COVID19 alters the response to hypoxia, thus influencing one's acclimatization capabilities at high altitude, albeit reversibly and/or temporarily. Different alterations of response to hypoxia could be observed. The virus causing COVID19, the "severe acute respiratory syndrome coronavirus 2" (SARS-CoV-2), has the potential to significantly damage the nervous system and to affect cardiorespiratory functions. If SARS-CoV-2 does, similarly to MERS and SARS, induce cardiorespiratory and neurological dysfunction, then COVID19 patients may have impaired hypoxia response after infection and perform worse on the 'Richalet test' in comparison to before the illness. Conversely, reports of high prevalence of dyspnea in patients up to 3 months after SARS-CoV-2 infection, might indicate infection-induced degenerative changes in the carotid bodies, which might lead to sensibilization of the peripheral chemoreceptors to impaired oxygenation. Possibly similar to the impact of aging and smoking on the cardiorespiratory response to hypoxia, this phenomenon of sensibilization could entail an increased hypoxic response in patients having suffered COVID-19. Accordingly, patients might perform better on the 'Richalet test' post-COVID-19 than they did before.
This is a first-in-human (FIH), randomized, double-blind, placebo-controlled, single-center phase I clinical trial of JS026 and JS026 + JS016 Injection. The objective of the study is to evaluate the safety, tolerability, PK profile and immunogenicity of a single intravenous infusion of JS026 and JS026 + JS016 Injection in healthy subjects. In this study, the single ascending dose design will be adopted, JS026 will be administered sequentially from low dose group to high dose group, and each subject can only receive an intravenous infusion at one dose level. Five dose groups (30 mg, 100 mg, 300 mg, 600 mg, and 1000 mg) will be set to receive an intravenous infusion of JS026, and two dose groups (300 mg JS026 + 1200 mg JS016, and 600 mg JS026+ 1200 mg JS016) will be set for JS026 + JS016. The investigational product and placebo will be distributed in each dose group in a ratio of 3:1. Four subjects will be enrolled in each of JS026 30 mg and 100 mg groups, and 8 subjects will be enrolled in each of other dose groups, totally 48 subjects.
This is a randomized, double-blinded, phase Ⅳ clinical trial of COVID-19 vaccine (Vero cell), Inactivated manufactured by Sinovac Life Sciences Co. , Ltd. The purpose of this study is to evaluate the safety and immunogenicity of booster vaccination using high-dosage or medium-dosage of COVID-19 vaccine (Vero cell), Inactivated in populations who have completed primary immunization 5-9 months
Background: Asthma is still considered a major chronic respiratory disease that affects a large number in the world. The association between COVID-19 infection and asthma was studied in different ways focusing on hospital admitted patients. This study aimed to evaluate the relation between asthma and COVID-19 infection in adults attending outpatient pulmonary clinic over three successive months from clinical and laboratory point of view. Patients and methods: The current study collected 1309 patients attending the outpatient pulmonary clinic of a Saudi Arabian private Hospital over three successive months from 1st of December 2020 to the end of February 2021. Patients were divided into three groups; Group 1: COVID-19 infected with asthma (312), Group 2: COVID-19 infected with no asthma (286) and Group 3: COVID-19 non-infected with asthma (300).
Accuracy validation of the designed and manufactured ELISpot-based in vitro diagnostic 'Corona-T-test' for detection of SARS-CoV-2-specific T cells.
This is a single-arm, open-label study to assess the pharmacokinetics, pharmacodynamics, safety, and exploratory efficacy of tocilizumab (TCZ) for the treatment of pediatric patients from birth to less than 18 years old hospitalized with COVID-19 and who are receiving systemic corticosteroids and require supplemental oxygen or mechanical ventilation.