Booster dose<unk>  has also been studied as a booster dose for<unk>  02. Single dose +Clinical trials of single-dose<unk>  Phase Registration Number of participants Age of participants ID Date Total Vaccine Control I RPCEC00000349 2021-01-05 30 30 0 18-55 years IIa RPCEC00000366 2021-04-09 20 20 0 19-80 years IIb 430 Placebo-controlled
Soberana Plus
COVIran Barekat
LeShawndra Price
Balm in Gilead 
Medgadget
MV Chauncy Maples
Mary de Lourdes Gogan
Beauty Mark