Not applicableStudy completedNCT04904445What this trial is testingCOVID-19 Antibody Responses In Cystic FibrosisWho this might be right forCystic Fibrosis Erasmus Medical Center 40
Not applicableActive Not RecruitingNCT04880174What this trial is testingSARS-COV-2 Seroprevalence and Seroconversion Among Employees of the Universitair Ziekenhuis Brussel Following mRNA COVID-19 VaccinationWho this might be right forSARS-CoV Infection Universitair Ziekenhuis Brussel 500
Not applicableUnknownNCT04490811What this trial is testingSeroprevalence and Immunoprotection Against COVID-19 in Parisian ChildrenWho this might be right forCOVID-19 Hôpital Necker-Enfants Malades 800
Not applicableStudy completedNCT05234359What this trial is testingThe CHILD Cohort COVID-19 Add-On StudyWho this might be right forSARS-CoV InfectionCovid19 University of Manitoba 5,385
Not applicableStudy completedNCT04530682What this trial is testingCOVID-19 in Rheumatic Inflammatory Diseases Under Immuno-suppressive DrugsWho this might be right forChronic Inflammatory Rheumatism University Hospital, Montpellier 163
Not applicableStudy completedNCT04563247What this trial is testingSeroprevalence of SARS-CoV-2 in Asymptomatic Frontline COVID-19 HCWsWho this might be right forCovid19 Lahore General Hospital 970
Not applicableStudy completedNCT05358626What this trial is testingSeroprevalence of Infection-induced SARS-CoV-2 Antibodies (COVID-19) in ChildrenWho this might be right forCOVID-19 National Children's Hospital, Vietnam 4,032
Not applicableStudy completedNCT04808986What this trial is testingSeroprevalence of IgG Antibodies to SARS-CoV-2 (COVID-19) in Primary Health Care Workers and Their Household ContactsWho this might be right forCovid19 Institut National de la Santé Et de la Recherche Médicale, France 2,817
Not applicableUnknownNCT04469647What this trial is testingCOVID 19 Seroprevalence Amongst Healthcare Workers in JHAHWho this might be right forCOVID 19 Johns Hopkins Aramco Healthcare 1,200
Not applicableStudy completedNCT04562285What this trial is testingSustained Immunity to COVID-19 as Measured by SARS-CoV-2 Serology AssaysWho this might be right forCovid19 Henry Ford Health System 829
Not applicableUnknownNCT04515225What this trial is testingCOVID-19 Prevalence in HIV-infected PatientsWho this might be right forHIV Infections University Hospital, Strasbourg, France 500
Not applicableUnknownNCT04426292What this trial is testingSARS-COV-2 Seroprevalence and Seroconversion Among Employees of the Universitair Ziekenhuis Brussel During the 2020 COVID-19 OutbreakWho this might be right forSars-CoV2 Universitair Ziekenhuis Brussel 3,500
Not applicableStudy completedNCT04523012What this trial is testingCOVID-19 and HIV PatientsWho this might be right forCovid19 Centre de Recherches et d'Etude sur la Pathologie Tropicale et le Sida 2,200
Not applicableStudy completedNCT05652582What this trial is testingSeroprevalence of Covid-19 in the Staff of the University Hospitals of StrasbourgWho this might be right forCOVID-19 University Hospital, Strasbourg, France 5,694
Not applicableUnknownNCT04528901What this trial is testingStudy of seroPREvalence Vis-à-vis SARS-CoV2 and Correlation With Clinical Forms of COVID-19 in Patients Followed in Pneumology in the Cluster Area of the Grand-Est Region (Strasbourg University Hospital)Who this might be right forCovid-19 University Hospital, Strasbourg, France 1,080