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Study Ref. Design studied treatmentcontrol treatmentpatientsstudy risk of biassample sizes Results symptomatic Covid-19 Esevere COVID-19 occurrence Einfection (PCR positive symptomatic or not) E

COVID-19 prophylaxis (excluding children) meta-analysis

C4591031- first boost
 
NCT04955626
RCTfirst booster doseComirnaty (tozinameran - Pfizer/BIONTECH)COVID-19 prophylaxis (excluding children)low
5081/5044 conclusif -68%
C4591031- first boost
 
NCT04955626
RCTfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)low
5081/5044 conclusif -68%
Pfizer/BioNTech Booster study
 
NCT04713553
RCTfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
-/- no results
Pfizer/BioNTech Booster study
 
NCT04713553
RCTfirst booster doseComirnaty (tozinameran - Pfizer/BIONTECH)COVID-19 prophylaxis (excluding children)NA
-/- no results
COVI3 OBSfirst booster doseComirnaty (tozinameran - Pfizer/BIONTECH)COVID-19 prophylaxis (excluding children)NA
-/- suggested -84%
COVI3 OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
-/- suggested -84%
McConeghy OBSfirst booster dosemRNA vaccineCOVID-19 prophylaxis (excluding children)NA
-/- suggested
McConeghy OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
-/- suggested
Thompson OBSmRNA vaccinecontrolCOVID-19 prophylaxis (excluding children)critical
2961/989 suggested
Agur unpublished OBSmRNA vaccineuncontrolled studyCOVID-19 prophylaxis (excluding children)NA
-/- no results
Kislaya OBSfirst booster doseComirnaty (tozinameran - Pfizer/BIONTECH)COVID-19 prophylaxis (excluding children)NA
-/- suggested
Kislaya OBSfirst booster doseVaxzevria (AstraZeneca Oxford - ChAdOx1 nCoV-19)COVID-19 prophylaxis (excluding children)NA
-/- suggested
Kislaya OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
-/- suggested
Bar-On OBSfirst booster doseComirnaty (tozinameran - Pfizer/BIONTECH)COVID-19 prophylaxis (excluding children)NA
-/- suggested -84%
Bar-On OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
-/- suggested -84%
Shemer OBSmRNA vaccinecontrolCOVID-19 prophylaxis (excluding children)NA
-/- inconclusive
Accorsi OBSfirst booster dosecontrolCOVID-19 prophylaxis (excluding children)NA
-/- no results
Accorsi OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
-/- no results
Thompson -VISIOn Network (omicron) OBSmRNA vaccinecontrolCOVID-19 prophylaxis (excluding children)NA
-/- suggested -47%
Thompson -VISIOn Network (omicron) OBSfirst booster dosecontrolCOVID-19 prophylaxis (excluding children)NA
-/- suggested -74%
UKHSA report week 12 (24 March 2022) OBSfirst booster dosecontrolCOVID-19 prophylaxis (excluding children)NA
-/- suggested
UKHSA report week 12 (24 March 2022) OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)NA
-/- no results
Abu-Raddad OBSfirst booster doseSpikevax (Moderna mRNA-1273 COVID-19 vaccine)COVID-19 prophylaxis (excluding children)NA
-/- suggested -42%
Abu-Raddad OBSfirst booster doseComirnaty (tozinameran - Pfizer/BIONTECH)COVID-19 prophylaxis (excluding children)NA
-/- suggested -44%
Abu-Raddad OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
-/- suggested -44%
Kirsebom (UKHSA) OBSmRNA vaccinecontrolCOVID-19 prophylaxis (excluding children)NA
-/- suggested -16%
Arbel OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)serious
758118/85090 suggested
Arbel OBSfirst booster doseComirnaty (tozinameran - Pfizer/BIONTECH)COVID-19 prophylaxis (excluding children)serious
758118/85090 suggested
Barda OBSfirst booster doseComirnaty (tozinameran - Pfizer/BIONTECH)COVID-19 prophylaxis (excluding children)NA
728321/728321 suggested -83%
Barda OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
728321/728321 suggested -83%
CDC Mesa County, Colorado OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)serious
-/- suggested -70%
HEROES-RECOVER (Fowlkes) OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)serious
3483/734 suggested -59%
Martinez-Baz OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)NA
-/- suggested -74% -85%
Pawlowski OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)NA
31069/31069 suggested -80%
Pawlowski OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)NA
-/- inconclusive
REACT-1 round 13 final report (Elliott, Imperial College London) OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)serious
-/- suggested -53% -44%
Shah OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)serious
-/- suggested -76%
Shibli OBSmRNA vaccinecontrolCOVID-19 prophylaxis (excluding children)NA
-/- safety concern
Tande unpublished OBSmRNA vaccinecontrolCOVID-19 prophylaxis (excluding children)NA
-/- no results
Mattiuzzi OBSfirst booster dosecontrolCOVID-19 prophylaxis (excluding children)NA
-/- suggested
Mattiuzzi OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
-/- suggested
Lauring OBSfirst booster dosecontrolCOVID-19 prophylaxis (excluding children)NA
5728/5962 suggested
Lauring OBSfirst booster dosemRNA vaccineCOVID-19 prophylaxis (excluding children)NA
5728/5962 suggested
Lauring OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
5728/5962 suggested
Lauring OBSmRNA vaccinecontrolCOVID-19 prophylaxis (excluding children)NA
5728/5962 suggested
Ontario (Buchan) OBSfirst booster dosecontrolCOVID-19 prophylaxis (excluding children)NA
-/- suggested
Patalon OBSfirst booster doseComirnaty (tozinameran - Pfizer/BIONTECH)COVID-19 prophylaxis (excluding children)NA
-/- suggested
Patalon OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
-/- suggested
Tenforde OBSfirst booster dosecontrolCOVID-19 prophylaxis (excluding children)NA
-/- suggested
Tenforde OBSfirst booster dosemRNA vaccineCOVID-19 prophylaxis (excluding children)NA
-/- suggested
Tenforde OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
-/- suggested
Tenforde OBSmRNA vaccinecontrolCOVID-19 prophylaxis (excluding children)NA
-/- suggested
Butt OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)moderate
54360/54360 suggested
Chung OBSmRNA vaccinecontrolCOVID-19 prophylaxis (excluding children)NA
53270/270763 suggested -82% -88%
England (Andrews) OBSfirst booster dosecontrolCOVID-19 prophylaxis (excluding children)NA
581/130867 suggested -68%
Grannis OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)serious
-/- suggested -74%
Li OBSInactivated virus vaccinecontrolCOVID-19 prophylaxis (excluding children)critical
74/292 suggested
Patalon OBSfirst booster doseComirnaty (tozinameran - Pfizer/BIONTECH)COVID-19 prophylaxis (excluding children)NA
-/- suggested
Patalon OBSfirst booster dosecomplete primary vaccine seriesCOVID-19 prophylaxis (excluding children)NA
-/- suggested
REACT-SCOT OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)NA
111295/1093449 suggested -64%
Sisonke 2 (booster)
 
NCT05148845
OBSfirst booster dosecontrolCOVID-19 prophylaxis (excluding children)NA
-/- suggested
VA (Bajema) OBSvaccinescontrolCOVID-19 prophylaxis (excluding children)serious
-/- suggested -80%
Aleman DESCmRNA vaccineuncontrolled studyCOVID-19 prophylaxis (excluding children)NA
-/- no results
Boyarsky DESCvaccinesuncontrolled studyCOVID-19 prophylaxis (excluding children)NA
-/- no results
Boyarsky DESCmRNA vaccineuncontrolled studyCOVID-19 prophylaxis (excluding children)NA
-/- no results

PE: primary endpoint; (a): to be demonstrated a result must be statistically significant on a primary endpoint (with multiplicity adjustment if necessary);
Study risk of bias assessed for the study primary endpoint(s) or the main endpoints in case of no formally defined primary endpoint(s).