Not applicableStudy completedNCT04355338What this trial is testingAssessment of Incidence of SARS-CoV-2 Infection and COVID-19 in Brazil (AVISA)Who this might be right forCOVID-19 Butantan Institute 3,520
Not applicableStudy completedNCT04418206What this trial is testingValidating an ELISpot for Early Detection of an Active Immune Response Against COVID-19Who this might be right forCovid 19 Centre Hospitalier Universitaire de Nice 950
Testing effectiveness (Phase 2)Study completedNCT07408297What this trial is testingEvaluating Safety and Immune Response of Janssen, Moderna, Pfizer/BNT, and Novavax COVID-19 Vaccines for Same and Mixed Boosters in Adolescents and Adults Aged 12-64 With and Without HIV in Kenya, DRC, and RwandaWho this might be right forCOVID -19SARS CoV 2 Infection Victoria Biomedical Research Institute 1,919
Testing effectiveness (Phase 2)Study completedNCT05205746What this trial is testingPhase II Study of AVX/COVID-12 Vaccine in Subjects With Prior SARS-CoV-2 Immunity EvidenceWho this might be right forSARS CoV 2 Infection Laboratorio Avi-Mex, S.A. de C.V. 158
Not applicableActive Not RecruitingNCT04813328What this trial is testingThe Effect of Helminth Infection Plus COVID-19 Infection on the Immune Response and Intestinal MicroorganismsWho this might be right forCOVID-19 National Institute of Allergy and Infectious Diseases (NIAID) 1,500
Not applicableUnknownNCT04653844What this trial is testingRT-PCR Database Analysis for COVID-19 Infections and Re-infectionWho this might be right forCovid-19SARS-CoV Infection University Hospital, Montpellier 7,000,000
Not applicableStudy completedNCT04370119What this trial is testingScreening for COVID-19 and Monitoring of Serological Responses to SARS-CoV-2 in Healthcare WorkersWho this might be right forSARS-CoV-2 University Medicine Greifswald 1,092
Testing effectiveness (Phase 2)Study completedNCT05276375What this trial is testingEffect of Bronchipret on Antiviral Immune Response in Patients With Mild COVID-19Who this might be right forCOVID-19 Dr. Frank Behrens 21
Not applicableNot Yet RecruitingNCT07341321What this trial is testingSARS-CoV-2 mRNA Vaccination in Patients With Hepatocellular Carcinoma Treated With Immune Checkpoint InhibitorsWho this might be right formRNA VaccinationHepatocellular CarcinomaCheckpoint Inhibitor Medical University of Graz 200
Not applicableStudy completedNCT04408001What this trial is testingStudy of Kinetics and Efficacy of the Immune Response Against COVID-19 Among Hospital StaffWho this might be right forSars-CoV2 Direction Centrale du Service de Santé des Armées 499
Early research (Phase 1)Looking for participantsNCT06821100What this trial is testingThymalfasin (Thymosin Alpha 1; Ta1) as an Enhancer of Vaccine Response Among Older Adults Receiving Booster Doses of COVID-19 VaccineWho this might be right forVaccine ResponseCOVID-19 VaccineImmune Response to Covid 19 Vaccination The Methodist Hospital Research Institute 75