Active clinical trials for "COVID-19"

Efficacy of Sunlight Activated Synthetic Porphyrin in COVID-19 Infected Patients (SnPPIX) Mahmoud ELkazzaz(1),Rokia yousry abdelaziz sallam(2) ______________________________________________________________________________________________________________________________________________________________________ Abstract : The novel coronavirus pneumonia (COVID-19) is an infectious acute respiratory caused by the novel coronavirus. The virus is a positive-strand RNA virus with high homology to bat coronavirus. Depending on published study in which , conserved domain analysis, homology modeling, and molecular docking were used to compare the biological roles of specific proteins of the novel coronavirus. The principal investigator demonstrated according to previous researches that some viral structural and nonstructural proteins could bind to the porphyrin, respectively. At the same time, orf1ab, ORF10 and ORF3a proteins coordinated to attack heme on the 1-beta chain of hemoglobin, COVID-19 binds to the porphyrin of haem and displaces iron and a study denonestrated that Covid-19 could cause acquired acute porphyria which is the condition in which there is excess accumulation of porphyrin intermediate metabolites. This point can be taken advantage of X-ray induced visible luminescence of porphyrin for producing of Reactive Oxygen Species (ROS).Many porphyrins are benign in the dark but are transformed by sunlight into caustic, flesh-eating toxins Porphyrins have been used for photodynamic therapy (PDT) against a wide range of targets like bacteria, viruses and tumor cells It has been reported that ROS-based inactivation of viruses may occur due to several reasons, such as protein oxidation, single strand breaks in the RNA genome and protein-RNA crosslinking. Since ROS-based inactivation has a multi-targeted mechanism, it is much less likely that a virus would be able to develop resistance against it. Recently, porphyrins, already in use as photosensitizers for Photodynamic Therapy (PDT), were a study target to applications in medical area, namely as possible contrast agents in MRI. could be observed some examples of porphyrin derivatives already study as MRI contrast media. Low dark toxicity, neoplastic tissue affinity and synthetic accessibility are some of the important properties that contribute for its selection. In MRI studies was found that CM based on paramagnetic metalloporphyrins showed higher affinity for neoplastic tissues, observed by increased relaxation time of the neoplastic tissues, which is reflected on an increase in MRI signal and consequently in a better neoplastic lesions detection. A study demonestrated that The sulfonated tetranaphthyl porphyrin contrast agents in MRI (TNapPS), sulfonated tetra-anthracenyl porphyrin (TAnthPS), and sulfonated 2,6-difluoro-meso-tetraphenylporphine [TPP(2,6-F2)S] and its copper chelate [TPP(2,6-F2)S,Cu], which reduced HIV infection by 99, 96, 94, and 96%, respectively. Previous studies which showed that Covid -19 binds to the porphyrin of haem and displaces iron in addition to Sulfonated porphyrins and light-stimulated Sn- protoporphyrin IX have broad antiviral activity against more distinct types of viruses, Co-protoporphyrin IX and Sn-protoporphyrin IX inactivate Zika, Chikungunya and other arboviruses by targeting the viral envelope Porphyrins are amphipathic molecules able to interact with membranes and absorb light, being widely used in photodynamic therapy. Previously, we showed that heme, Co-protoporphyrin IX (CoPPIX) and Sn-protoporphyrin IX (SnPPIX) directly inactivate DENV and YFV infectious particles. Here we demonstrate that the antiviral activity of these porphyrins can be broadened to CHIKV, ZIKV, Mayaro virus, Sindb is virus and Vesicular Stomatitis virus. Porphyrin treatment causes viral envelope protein loss, affecting viral morphology, adsorption and entry into target cells , Finally, the principal investigator expect that viral load will be declined with sunlight because In particular, porphyrins absorb essentially all the UV/visible light wavelengths in the emission spectrum of the sun; hence they are active at very low doses . Keywords: COVID 2019 ,Infection, Sulfonated porphyrins and X-ray induced visible luminescence of porphyrin

Assessment of the Efficacy and Safety of Hydroxychloroquine (HCQ) Administered as a Prophylaxis for Health Professionals Exposed to COVID19 and Working in Medical Intensive Care Units, in Tunisia. Multicentric, Randomized Comparative Study

The aim of this study is to evaluate the efficacy and safety of MTX-loaded nanoparticles in three different doses to treat severe COVID-19 patients.

Currently there are no US Food and Drug Administration (FDA)-approved drugs specifically for the treatment of patients with COVID-19. At present, clinical management includes infection prevention and control measures, as well as supportive care, including supplementary oxygen and mechanical ventilatory support when indicated. An array of drugs approved for other indications as well as several investigational drugs are being studied in several hundred clinical trials that are underway across the globe; however, currently there are no clinical trials available to patients in Arizona. This study will determine if a specific drug cocktail can improve clinical outcomes in patients with confirmed Mild SARS-CoV-2

The primary objective of this study is to assess whether the use of lenzilumab in addition to current standard of care can alleviate the immune-mediated cytokine release syndrome (CRS) and improve ventilator-free survival in hospitalized subjects with severe or critical COVID-19 pneumonia.

This is an open-label, controlled, single-centre pilot study of nivolumab in adult patients with COVID-19. This clinical study aims to evaluate efficacy of anti-PD1 antibody in relation to viral clearance and its safety.

The new outbreak of the SARS-CoV-2 coronavirus is causing an important pandemic affecting a large number of people all-over the world. Vitamin D is a hormone precursor produced by our own body with the help of sunlight which has an important role on adaptive immunity and cellular differentiation, maturation and proliferation of several immune cells. Reduced levels of vitamin D in calves were positioned as the main cause of bovine coronavirus infection in the past. Therefore, it seems plausible that the use of vitamin D as a nutritional ergogenic aid could be a potential intervention to fight against COVID-19 infected patients which remain asymptomatic or which have non-severe and severe symptoms. This study aims to investigate whether the use of vitamin D as an immune modulator agent induces significant improvements of health status and outcomes in non-severe symptomatic patients infected with COVID-19 as well as preventing COVID-19 health deterioration. We hypothesize that vitamin D will significantly improve hard endpoints related to COVID-19 deleterious consequences compared with a usual care control group.

There is no known definite treatment after exposure to SARS-CoV-2, but the some animal and clinical trials confirmed the efficacy of hydroxychloroquine (HCQ) or chloroquine against SARS-CoV-2. Thus, in this study, we aim to evaluate the efficacy and safety of hydroxychloroquine as post exposure prophylaxis for SARS-CoV-2. Primary end point: comparison the rate of COVID-19 between PEP with HCQ and control group. Secondary end point: Comparison of the rate of COVID-19 according to the contact level (time, place, degree of wearing personal protective equipment). Safety comparison: Safety verification by identifying major side effects in the HCQ group."

The novel coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) has been discovered recently in December 2019 from wuhan city in China to spread in more than 40 countries allover the world. This disease has gain the attention of all nations after it has been stated as a pandemic by the World Health Organization (WHO) in March 12, 2020. Currently no treatment has been proved to be efficient in the treatment of infected patients by COVID-19. Natural honey has been demonstrated as potent antimicrobial in many research investigations and has been considered a good alternative for antiviral drugs for the treatment of some viral infections. The investigators aim to study the efficacy of natural honey in the treatment of COVID-19 patients in this randomized , multicenter, controlled trial, comparing honey in one arm to standard care in the other arm.

Different studies showed that ascorbic acid (vitaminC) positively affects the development and maturation of T-lymphocytes, in particular NK (natural Killer) cells involved in the immune response to viral agents. It also contributes to the inhibition of ROS production and to the remodulation of the cytokine network typical of systemic inflammatory syndrome. Recent studies have also demonstrated the effectiveness of vitamin C administration in terms of reducing mortality, in patients with sepsis hospitalized in intensive care wards. Given this background, in the light of the current COVID-19 emergency, since the investigators cannot carry out a randomized controlled trial, it is their intention to conduct a study in the cohort of hospitalized patients with covid-19 pneumonia, administering 10 gr of vitamin C intravenously in addition to conventional therapy.