demonstrated suggested inconclusive safety concern ongoing study display ongoing demontrated benefit only
COVID-19 severe or critically
COVID-19 prophylaxis (excluding children)
first booster dose C4591031- first boost C4591031- first boost
mRNA vaccine (any) - first boost
Comirnaty - first boost C4591031- first boost C4591031- first boost

20 studies excluded by filtering options 0

8345 Pfizer/BioNTech Booster study, 2021 110risk of bias not avaialble
8516 Bar-On, 2021 1110not a RCTrisk of bias not avaialble
9129 COV-BOOST, 2021 210excludedrisk of bias not avaialble
9130 Gilboa, 2021 200excludedrisk of bias not avaialble
9132 Arbel, 2021 1133not a RCThigh risk of bias
9173 Sisonke 2 (booster), 2021 1200not a RCTrisk of bias not avaialble
9174 Barda, 2021 1130not a RCTrisk of bias not avaialble
9175 Patalon, 2021 1200not a RCTrisk of bias not avaialble
9183 Mattiuzzi, 2022 1150not a RCTrisk of bias not avaialble
9203 England (Andrews), 2021 1200not a RCTrisk of bias not avaialble
9210 Ontario (Buchan), 2022 1200not a RCTrisk of bias not avaialble
9213 COVI3, 2022 1100not a RCTrisk of bias not avaialble
9275 Mattiuzzi, 2022 200excludedrisk of bias not avaialble
9288 Kislaya, 2022 1110not a RCTrisk of bias not avaialble
9290 Danza, 2022 2320excludednot a RCTrisk of bias not avaialble
9293 Tenforde, 2022 1200not a RCTrisk of bias not avaialble
9331 McConeghy, 2022 1100not a RCTrisk of bias not avaialble
9411 Accorsi, 2022 1120not a RCTrisk of bias not avaialble
9415 Patalon, 2022 1200not a RCTrisk of bias not avaialble
9461 Abu-Raddad, 2022 1130not a RCTrisk of bias not avaialble