
SIGNAL During a COVID-19 Pandemic
Breast CancerThe standard treatment for early stage, estrogen-receptor positive breast cancer is lumpectomy and sentinel lymph node biopsy followed by 16-25 treatments of adjuvant whole-breast radiation therapy plus or minus hormone therapy. However, the COVID-19 pandemic has necessitated changes in the way breast cancer is treated in order to reduce contact between individuals, reduce spread of the novel coronavirus, and lessen the impact on health care resources. As elective surgeries are being cancelled, current pandemic guidelines recommend that patients be started on hormone treatment while waiting for surgeries to be re-instated. Only after this surgery occurs will patients receive radiation treatment, dramatically extending the time between diagnosis and end of treatment. Emergency pandemic guidelines in the UK and other countries recommend 5 fractions of pre-operative radiation therapy where appropriate. Based on previous work in the SIGNAL 1.0 and SIGNAL 2.0 clinical trials, the investigators are proposing treating patients with early stage breast cancers with one single fraction of stereotactic neoadjuvant radiation during the pre-operative waiting period. This will allow patients to complete radiation therapy upfront while reducing the number of patient visits to hospital. This will also allow investigators to evaluate the ability of single-fraction targeted radiation to induce a pathologic complete response.

Prognostic Value of IgM in Covid-19 Infection
COVID-19The primary objective of the research is to study the relation between the presence and /or the anti SARS-Co-V-2 IgM level in an early stage of COVID-19 infection, and the evolution of the illness.

Emotional and Physical Health Status of Adults
PandemicCOVID-191 moreTo investigate the comparison of differences between emotional and physical health status of adults in COVID-19 isolation period and controlled normalization period.

The RAPID COVID Study - Application of Point-of-Care COVID-19 Testing
Covid19This study is being conducted to study the use and application of a point-of-care (POC) Covid-19 test developed by Spartan BioSciences and recently approved for clinical use by Health Canada.

Diagnostic Performance of an Antigen Test for SARS-CoV-2 Infection (COVID-19)
Covid-19A comparison of a direct antigen test for SARS-CoV-2 obtained by mid-turbinate swab with the reference standard rt-PCR test obtained by nasopharyngeal swab in outpatients with symptoms compatible with COVID-19.

Abatacept for Patients With COVID-19 and Respiratory Distress
COVID-19This is a single-arm open label trial for hospitalized patients with COVID-19 (Coronavirus). The primary endpoint of the study is to assess the requirement for mechanical ventilation in patients who are admitted to the hospital with COVID-19 infection and a Pulse Oxygen Level </= 93% on room air. The primary endpoint analysis will be performed using all enrolled patients.

Impact of Zinc and Vitamin D3 Supplementation on the Survival of Aged Patients Infected With COVID-19...
SARS-CoV 2Mortality from Covid-19 increases with age, reaching 14.8% from the age of 80. The severity of the infection is linked to the acute respiratory distress syndrome (ARDS) which requires intensive care. ARDS is the consequence of the reactional inflammatory storm that damages the lungs. Aged subjects are particularly prone to zinc and vitamin D deficiency. These two micronutrients are able to modulate the immune response by reducing the inflammatory storm. The hypothesis is that supplementation with zinc and vitamin D would reduce the inflammatory reaction which worsens ARDS and leads to the death of subjects infected with Covid-19.

Performance of 3 Sampling Methods for the Detection of SARS-CoV-2 (COVID-19) With Real-time Reverse...
Covid-19SARS-CoV-22 moreThe performance of 3 different sampling methods (2 nasopharyngeal swabs, 1 oropharyngeal swab) for the detection of SARS-CoV-2 with real-time reverse transcriptase polymerase chain reaction will be compared.

Outcomes of Endoscopic Operation in COVID-19 Infection: Cohort Study.
COVID-19Surgery-ComplicationsThe goal of this observational study is to determine 30-day mortality and post endoscopic surgery complications in patients with COVID-19 infection who undergo endoscopic surgery.This results will inform future risk stratification, decision making and improve patient's clinical care.This study is an investigator-led, non-commercial, non-interventional study is extremely low risk, or even zero risk.

Clinical Validation of the LumiraDx SARS-CoV-2 & Flu A/B Test in Detecting and Differentiating Severe...
SARS-CoV-2Influenza A2 moreThis is a prospective multicenter study conducted to evaluate the performance of the LumiraDx SARS-CoV-2 & Flu A/B tests at point of care sites. Subjects presenting with symptoms suggestive of coronavirus disease 2019 (COVID-19) and Influenza at the time of the study visit will be enrolled and asked to donate swab sample(s) for testing on the device under evaluation.