Table 3.

List of US-FDA approved vaccines under clinical trials

Vaccine name	Type of vaccine	Current stage of the clinical trial	Efficacy	Dosing regimen	Type of administration	Manufacturer of the vaccine
Comirnaty/tozinameran/BNT162b2	mRNA vaccine	Phases 2, 3	95%	2 doses, 3 weeks apart	Muscle injection	Pfizer and BioNTech
mRNA-1273	mRNA vaccine	Phase 3	94.5%	2 doses, 4 weeks apart	Muscle injection	Moderna
Sputnik V/Gam-Covid-Vac	Viral vector (Ad26, Ad5)	Phase 3	91.6%	2 doses, 3 weeks apart	Muscle injection	Gamaleya Research Institute
AZD1222/Covishield	Viral vector (ChAd0 × 1)	Phases 2, 3	82.4%	2 doses	Muscle injection	University of Oxford and AstraZeneca
Convidecia/Ad5-nCoV	Viral vector (Ad5)	Phase 3	Unknown	Single dose	Muscle injection	CanSino Biologics
EpiVacCorona	Protein subunit	Phase 3	Unknown	2 doses, 3 weeks apart	Muscle injection	Vector Institute
BBIBP-CorV	Inactivated	Phase 3	79.34%	2 doses, 3 weeks apart	Muscle injection	Sinopharm and Beijing Institute of Biological Products
CoronaVac	Inactivated	Phase 3	50.38%	2 doses, 2 weeks apart	Muscle injection	Sinovac Biotech
Covaxin	Inactivated	Phase 3	Unknown	2 doses, 4 weeks apart	Unknown	Indian Council of Medical Research, National Institute of Virology and Bharat Biotech
Name not announced	Inactivated	Phase 3	Unknown	Unknown	Unknown	Sinopharm and Wuhan Institute of Biological Products