Active clinical trials for "COVID-19"

This trial is an interventional, randomized, placebo-controlled, adaptive clinical trial in outpatients with symptomatic microbiologically-confirmed SARS-CoV-2, in stable clinical condition, and increased levels of serum C-reactive protein. The hypothesis of this study is that early administration of prednisone for 7 days in patients with evidence of increased C-reactive protein will decrease the progression of COVID-19, prevent clinical deterioration, and hospital admission. Objectives: Primary Objective: To evaluate if early administration of corticosteroids in non-hospitalized participants with proven SARS-CoV-2 infection with compatible clinical symptoms and increased C-reactive protein can prevent hospital admission or early death

This phase 1 trial aims to assess the safety and tolerability of two doses of ABNCoV2, formulated with and without the adjuvant MF59, in healthy adult volunteers and to identify the dosage and formulation that optimizes the immunogenicity-tolerability ratio 14 days following first vaccination with ABNCoV2.

The purpose of this study is to assess SARS CoV-2 infection, viral shedding, and subsequent potential transmission in individuals immunized with the Moderna COVID-19 vaccine.

Hydrogen peroxide is produced physiologically by oral bacteria and plays a significant role in the balance of oral microecology since it is an important antimicrobial agent. In the epithelial cells, the enzyme superoxide dismutase catalyzes a reaction leading from hydrogen peroxide to the ion superoxide. The induced oxidative stress stimulates a local innate response via activation of the toll-like receptors and the NF-κB. Those kinds of reactions are also activated by viral infections. Virus-induced oxidative stress plays an important role in the regulation of the host immune system and the specific oxidant-sensitive pathway is one of the effective strategies against viral infections. Therefore, nose/mouth/throat washing with hydrogen peroxide may enhance those local innate responses to viral infections. The investigators hypothesised that a treatment with a mouth wash and a nasal spray containing a diluted solution of hydrogen peroxide may accelerate the negativisation rate of a positive PCR swab test for SARS-CoV-2 (COVID-19).

The purpose of this study is to evaluate the safety and efficacy of mRNA COVID-19 vaccines in: • People with prior COVID-19 (SARS-CoV-2 infection) who were in the ACTIV-2/A5401 study. And • People who have never had COVID-19 (SARS-CoV-2 infection).

Pilot, randomized and controlled clinical trial for the evaluation of the decrease in the viral load of SARS-CoV-2 in the oropharynx in patients with COVID-19 through the use of mouthwash containing cetylpyridinium chloride (CPC) (0.07%) in mouthwash.

The purpose of this study is to assess the safety and immunogenicity of MVC-COV1901 vaccine in two different dose forms in participants who are generally healthy or with stable pre-existing health conditions.

The aim of this study is to compare the SARS-CoV-2 detection rate using either a Saliva, oropharyngeal swabs or nasopharyngeal swab method for specimen collection.

The purpose of this study is to assess the safety and immunogenicity of MVC-COV1901 vaccine compared to placebo in participants who are generally healthy or with stable pre-existing health conditions.

The Renin-Angiotensin-Aldosterone System (RAAS) is involved in blood pressure regulation and electrolyte balance. Angiotensin-converting enzyme (ACE) is a critical regulator of RAAS by cleaving angiotensin (Ang1) to Angiotensin2 (Ang2), which is the most powerful biologically active product of RAAS [1]. In the same context, angiotensin-converting enzyme 2 (ACE2) converts Ang2 to Ang (1-7), which is a vasodilator, antithrombotic, and antihypertrophic peptide [2]. ACE2 which is found in many tissues [3] has opposite effects to ACE on the heart, kidneys, and lungs [4]. Many pathological conditions, in particular cardiovascular disease (CVD), have shown a link between a disturbance in ACE/ACE2 ratio and the downregulation of ACE2 levels [5]. Also, ACE/ACE2 has been reported to be higher in moderate to severe chronic heart failure [6] as well as systolic blood pressure [7]. Recently, an elevated ACE/ACE2 ratio is linked to Coronavirus disease 2019 (COVID-19). SARS-COV2 enters target cells by binding of the spike protein to ACE2 and a specific transmembrane serine protease 2 (TMPRSS2) for the spike (S) protein priming, which also leads to downregulation of ACE2 [8]. Down-regulation of ACE2 caused by Coronavirus may have a potential role in the pathogenesis of COVID-19 infection. Accordingly, people with a higher ACE/ACE2 ratio may be more at increased risk of worse Covid-19 consequences [9]. On the other hand, omega-3 fatty acids could decrease CVD risk by their anti-inflammatory anti-thrombotic function [10]. A meta-analysis comprising 15,806 patients, showed that omega-3 fatty acids associated with a 30% reduction in fatal myocardial infarction and sudden death, in addition to a 20% reduction in overall mortality [11]. To the best of our knowledge, no clinical trials have evaluated the effect of omega-3 supplementation on serum ACE/ACE2 ratio which is recently ascribed as a potential key in 2019 Covid-19 as well as CVD [5,9].