COVID-19 Clinical Trials and Expanded Access

Although clinical trials for approved COVID-19 vaccines demonstrated efficacy of the vaccine in preventing symptomatic infection, many questions about vaccine effectiveness, such as the effectiveness of COVID-19 vaccine in preventing asymptomatic infection, a surrogate for transmission, and duration of protection, can only be evaluated in real-world trials. The objective of the study is to evaluate COVID-19 vaccine effectiveness (Pfizer vaccine, and, if available, Moderna vaccine) in preventing infection in healthcare personnel in Israel. HCP who are Clalit members and working in Soroka, Beilinson, Meir, Haemek, Kaplan and Schneider hospitals, 18 years or older, and eligible to get COVID-19 vaccine according to Ministry of Health guidelines, will be recruited, regardless of their intention to get the COVID-19 vaccine. A baseline serology sample and respiratory sample will be collected. Participants will be asked to provide a respiratory sample weekly for 3 months, and then monthly for the remainder of the study. Participants will also have blood drawn at 1 month, 3 months, 6 months, 9 months and 12 months. Respiratory samples will be tested for SARS-CoV-2 by RT-PCR; serology will be tested for SARS-CoV-2 antibodies. The study will last for 12 months. For each participant, data will be extracted from the Electronic Medical Record for the period of the study and retrospectively from 2010.

The study is a multicenter, adaptive, randomized, double-blinded and placebo-controlled Phase II/III clinical trial. It will be conducted at selected investigational sites globally. The study is comprised of 2 parts.

The new coronavirus known as SARS-Cov-2 (severe acute respiratory syndrome -coronavirus 2) was first reported in December 2019 and rapidly became a public health emergency. The COVID-19 pandemic is now affecting sensitive regions with fragile health care systems, such as South America and Africa. Caregivers, in the front line of Covid19 patient management, may accidentally become infected and a source of infection during the incubation phase or in case of asymptomatic infection. The objectives of this project are thus i) to assess SARS-Cov-2 spread over the hospital departments of Bamako by carrying out a systematic molecular screening of patients and caregivers, ii) to evaluate the feasibility of Point-Of-Care molecular assays in Mali and iii) to estimate the immunity acquired from SARS-Cov-2 among health workers through serological testing, allowing also the assessment of asymptomatic caregiver rate and absence of re-infection among the immunized caregivers. Finally, iv) variability of the virus over time and spread of different variants around the world will be studied by sequencing the viral genome.

Comparison of COVID-19 disease course in hospitalized patients infected by SARS-CoV-2 in first and second waves of the novel coronavirus infection

The aim of the study is to achieve prevention of COVID-19 disease in healthcare professionals with the administration of the IMUNOR® preparation, and decreasing the symptoms should the disease appear.

The global pandemic of novel coronavirus disease 2019 (COVID-19) began in Wuhan, China, in December 2019, and has since spread worldwide. The disease is mild in 85% of cases but the remaining 15% requires hospitalization and/or intensive care. Recent publications show that a significant number of COVID-19 patients are co-infected with one or more pathogens. Most co-infections occurred within 1-4 days of onset of COVID-19 disease and a considerable number of patients arrive to the Emergency rooms with mild-moderate respiratory symptoms compatible with pneumonia of presumed bacterial origin and not severe enough for requiring hospitalization. It therefore seems reasonable to adopt therapeutic strategies for these patients that are effective and easy to follow in the outpatient setting. Cefditoren (CDN) is a third-generation cephalosporin for oral administration. CDN has a broad spectrum of activity and is particularly active against the bacterial pathogens involved in community respiratory tract infections. Besides that, the use of CDN has been associated with a marked decrease in circulating levels of IL-6 and other pro-inflammatory cytokines and mediators of epithelial damage. The aim of this study is to demonstrate that CDN improves clinical condition in patients with mild-moderate COVID-19 and symptoms of bacterial pneumonia.

the study's porpuse is to examine whether Covid-19 causese a reduction in sensorineural hearing and vestibular function in recovered pateints - compared to healthy controls. Both study groups will undergo audiometry, tympanometry, Video Head Impulse testing, Subjective Visual Vertigo testing and Video-Nystamography. Previous audiometry results will also be aquired.

This is a phase 1b, open-label study in adult healthy participants. This clinical trial is designed to assess the safety, reactogenicity, and immunogenicity of the hAd5-S-Fusion+N-ETSD vaccine and select a dose for future studies.

This randomized study evaluates the antiviral activity, safety, efficacy and pharmacokinetics of AT-527 versus a placebo in participants with mild or moderate coronavirus disease (COVID-19) who are not hospitalized.

Background: Coronavirus disease 2019 (COVID-19) has affected almost every country in the world, especially in terms of health system capacity and economic burden. People from sub-Saharan Africa (SSA) often face interaction between human immunodeficiency virus (HIV) infection and non-communicable diseases such as cardiovascular disease. Role of HIV infection and anti-retroviral treatment (ART) in altered cardiovascular risk is questionable and there is still need to further carry out research in this field. However, thus far it is unclear, what impact the COVID-19 co-infection in people living with HIV (PLHIV), with or without therapy will have. The ENDOCOVID project aims to investigate whether and how HIV-infection in COVID-19 patients modulates the time course of the disease, alters cardiovascular risk, and changes vascular endothelial function and coagulation parameters/ thrombosis risk. Methods: In this long-term study, cardiovascular research on PLHIV with or without ART with COVID-19 and HIV-negative with COVID-19 will be carried out via clinical and biochemical measurements for cardiovascular risk factors and biomarkers of cardiovascular disease (CVD). Vascular and endothelial function will be measured by brachial artery flow-mediated dilatation (FMD), carotid intima-media thickness (IMT) assessments, and retinal blood vessel analyses, along with vascular endothelial biomarkers and coagualation markers. The correlation between HIV-infection in COVID-19 PLHIV with or without ART and its role in enhancement of cardiovascular risk and endothelial dysfunction will be assessed. Potential changes in these endpoints by COVID-19 will be followed for 4 weeks across the three groups (PLHIVwith or without ART and HIV negatives). Impact of project: The ENDOCOVID project aims to evaluate in the long-term the cardiovascular risk and vascular endothelial function in PLHIV thus revealing an important transitional cardiovascular phenotype in COVID-19.