Immunogenicity and Reactogenicity Following a Booster Dose of COVID-19 mRNA Vaccine (Pfizer-BioNtech) and Two Adjuvanted Sub-unit Vaccines (SP/GSK) Administered in Adults Who Received 2 Doses of Pfizer-BioNTech mRNA Vaccine as a Primary Vaccination
PHASE3
The vaccination campaign in France began in early 2021 and was declared man...
Immunogenicity and Reactogenicity of the Beta-variant Recombinant Protein Booster Vaccine (VidPrevtyn Beta, Sanofi) Compared to a Bivalent mRNA Vaccine (Comirnaty Original/Omicron BA.4-5, BioNTech-Pfizer) in Adults Previously Vaccinated With at Least 3 Doses of COVID-19 mRNA Vaccine
PHASE3
The objective of this trial is to compare the immunogenicity and the safety...
Compare Immunological Efficacy of a Vaccine Regimen Combining Two Covid19 mRNA Vaccines (Pfizer-BioNTech and Moderna) With That of a Homologous Vaccination of Each Covid19 mRNA Vaccine
NA
As part of the COVID 19 vaccine campaign, the two mRNA vaccines, BNT162b2 (...
A Study to Evaluate VXA-CoV2-3.3 COVID-19 Vaccine Against Currently Approved/Authorized mRNA COVID-19 Injectable Booster Vaccine in Adults Previously Immunized Against COVID-19 Infection
PHASE2
The primary objective of the study is to determine the relative efficacy of...