Active clinical trials for "COVID-19"

This is a research study to evaluate the Sensitivity and Specificity of BIOZEK COVID-19 Antigen Rapid Test on samples collected by a healthcare professional versus self-collection; and to perform analysis to compare results. In addition, to obtain RT-PCR test results, performed prior to enrollment, and compare all three results.

Measurement of aerosolisation during esophagogastroduodenoscopy (EGD) to compare two types of mouthpieces, conventional versus a new and commercially available one 'the droplet reduction mouthpiece B1'. This new mouthpiece is considered to reduce droplet spreading during EGD and therefore could be a good option for use in COVID-19 positive patients.

This study will conduct an evaluation of a program that is being implemented SickKids / Toronto Public health that provides take-home saliva testing kits in schools. Operationally, there is a planned randomization so that all schools have an equitable chance to receive the intervention at various time periods during the planned operational roll-out, which will require a staggered implementation consistent with the stepped-wedge study design. The study will leverage this chance implementation to do a robust evaluation of the public health intervention. Schools that are not being rolled out to week one, will begin in the "control phase" (testing at an assessment center) and transition to the program "intervention phase" (take home saliva kits available at schools) at a randomly assigned time (wedge) over a 6-week period with all schools receiving the program by the end of the study. The investigators will evaluate the impact of the program on SARS-CoV-2 case identification in schools.

Mixed-methods process evaluation of a residence-based asymptomatic SARS-CoV-2 testing participation pilot

A study to investigate Rhinoswab as an alternative method to combined throat and deep nasal (CTDN) swab for respiratory sample collection in children who present to the Royal Children's Hospital (RCH) for viral testing. Children and their parent/guardian will answer a short survey about their preferences. Laboratory staff will answer a short survey about handling the different samples.

This study will determine the impact of pulmonary rehabilitation on quality of life, body composition and respiratory function in patients with a history of COVID-19.

This Lucira COVID-19 All-In-One Test Kit performance study will be used to establish the performance of the Lucira COVID-19 All-In-One Test Kit as compared to a known high sensitivity RT-PCR molecular assay. The results of this study will be used to demonstrate the Lucira COVID-19 'swab to result in 30 minutes' test kit is similar in performance to known high sensitivity best-in-class molecular assays performed in high complexity labs. The results of this study will be combined with other studies the Sponsor has underway and will support a FDA Emergency Use Authorization (EUA) of the Lucira COVID-19 All-In-One Test Kit. This performance study will include nasal swabs self-collected by study subjects at community-based locations with trained medical staff. A subject's participation in this study will consist of one study visit and one collection event. The subject self-collects a nasal swab sample according to Lucira COVID-19 Test Kit instructions and runs test according to Quick Reference Instructions (QRI). Following the Lucira COVID-19 All-In-One Test Kit self-collection will be an additional swab collection for reference method testing. One (1) additional NS specimen will be collected either by the health care professional or self-collection, prepared in Transport Medium and sent to a reference laboratory.

This study is designed to compare the performance of the NOWDx COVID-19 Test to an emergency use authorized PCR test result. The intent is to show the rapid test device is comparable to a currently marketed device. The NOWDx COVID-19 Test is an in vitro lateral flow immunoassay intended for qualitative detection of total antibodies to SARS-CoV-2 in human whole blood (venous and fingerstick).

Since the start of 2020, the new SARS-CoV-2 coronavirus is causing a real global health crisis. In France, nasopharyngeal swabs are used to obtain the sample needed for respiratory infection screening. There are three major difficulties with this type of sampling: I) It is really unpleasant for the patient because the device has to be pushed into the nostril to reach the nasopharynx. It causes some patients to bleed or even feel uncomfortable. II) It is not easily accepted by children. III) It is dependent on the availability of swabs. Faced with these difficulties linked to the initial sampling, new methods are being studied to enable a rapid and non-invasive diagnosis of COVID-19 based on the instantaneous identification of metabolites or volatile organic compounds (VOCs). Due to their sensitivity and the wealth of information that can be provided, the most promising techniques are based on mass spectrometry coupled with a soft ionisation system. For example, on-line exhaled air analysis is capable of detecting a very large number of VOCs. Various tests on metabolites in the exhaled air have already been carried out without being totally conclusive because the existing instruments suffer from various limitations: I) poor repeatability/accuracy in the chemical characterisation of exhaled air ; II) too high specificity (detection of only part of the emitted compounds); III) too limited sensitivity; IV) and poor adaptation to be deployed in a clinic. In order to overcome these various limitations, we propose the use of a new generation of mass spectrometer: Vocus PTR-TOF. The Vocus PTR-TOF is a Proton Transfer Mass Spectrometer (PTR-MS) developed for the detection, in real time, of trace VOCs in industrial environments, laboratories or directly in the environment. This new generation of instrument offers the following advantages: I) unequalled sensitivity : II) a robust ionisation system not affected by environmental conditions (relative humidity...) ; III) a high mass resolution allowing precise identification of compounds ; IV) a compact and durable architecture allowing deployment in a constrained environment such as hospital, airport… The sensitivity and speed of measurement allow the expiration process to be monitored in real time, bringing an additional dimension to the measurement and the chances of success.

The aim of this study is to assess the prevalence and arrhythmogenic role of occult myocardial scars on Cardiac Magnetic Resonance (CMR) in a population of patients with history of laboratory-proven symptomatic COVID-19 infection managed without hospitalization, as compared to a population of age- and sex-matched healthy volunteers.