Convalescent Plasma for COVID-19 Research Donor Study

Study Overview
=================
Brief Summary
-----------------
Convalescent Plasma for COVID-19 Research (CONCOR-Donor) study, is a national, natural history study of plasma donors recovered from COVID-19. CONCOR-Donor study will address immune response, duration of protective immunity, and clinical factors and host genetics contributing to the variability of immune response. We will also study long-term outcomes from COVID-19 infection. Results from the study will help define therapeutic strategies for COVID-19.

Detailed Description
-----------------
The outbreak caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) led to the global pandemic. There are currently no proven treatments for coronavirus disease (COVID-19), however, convalescent plasma has emerged as a potential therapeutic to prevent clinical deterioration. Convalescent plasma was successfully used for other infections, in small numbers, but there is limited evidence for the efficacy of administering specific, neutralizing antibodies by transfusion of convalescent plasma. The unknown role for convalescent plasma in treating COVID-19 necessitates further study. As trials are underway to determine efficacy of using convalescent plasma, we will use this unique opportunity to conduct a national longitudinal cohort study of 1000 persons recovered from COVID-19 and volunteer to donate convalescent plasma. Our aims are to:1) determine if the variability of titers of viral neutralizing antibody and ELISA antibody are associated with clinical and demographic factors; 2) determine duration of protective immunity in recovered persons over 1 year and if modified by clinical and demographic factors; 3) determine genetic risk predictors of the antibody response, and 4) create a biorepository available to researchers from across Canada. Based on the World Health Organization (WHO) Coordinated Global Research Map, this project addresses the priority of the natural history of COVID-19 and clinical characterization of antibody response in the convalescent phase and beyond.

Official Title
-----------------
Convalescent Plasma for COVID-19 Research (CONCOR) Donor Study

Conditions
-----------------
Covid19

Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: Recovered from COVID-19 infection Have a positive PCR or serology or a positive household contact Signed informed consent form Provide blood sample Ability to complete a questionnaire Exclusion Criteria: None

Ages Eligible for Study
-----------------
Minimum Age: 17 Years
Maximum Age: 85 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| COVID-19 Convalescents<br>The cohort will include up to 1000 persons recovered from COVID-19, ages 17 - 65, that will provide a written consent form to participate in the study, complete questionnaires and provide a blood sample. | |

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Seroprevalence and duration of protective immunity | Determine if the titers of SARS-CoV-2-specific neutralizing antibody and serum ELISA antibodies, are correlated with clinical and demographic factors such as age, sex, comorbidities, geographic region, and severity of prior COVID-19 symptoms, during the convalescent phase. | 12 months | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
Covid19, Convalescent plasma, Seroconversion, Immunity, National, Biorepository, Observational Study