Study: NCT04998240

Intervention type: BIOLOGICAL
Group type: EXPERIMENTAL
Intervention: BBIBP-CorV - Inactivated SARS-CoV-2 vaccine (Vero cell)
Description: The Inactivated SARS-CoV-2 vaccine (Vero cell)- BBIBP-CorV manufactured by Beijing Institute of Biological Products (BIBP), China National Biotec Group (CNBG), Sinopharm, Beijing, People's Republic of China~Dose formulation: A liquid formulation containing 4μg total protein with aluminum hydroxide adjuvant (0·45 mg/mL) per 0·5 mL (2-dose schedule followed by a booster dose).~Mode of Administration:~Intramuscular~Storage Conditions: 2°C to 8°C

Intervention type: BIOLOGICAL
Group type: EXPERIMENTAL
Intervention: BBIBP-CorV - Inactivated SARS-CoV-2 vaccine (Vero cell)
Description: The Inactivated SARS-CoV-2 vaccine (Vero cell)- BBIBP-CorV manufactured by Beijing Institute of Biological Products (BIBP), China National Biotec Group (CNBG), Sinopharm, Beijing, People's Republic of China~Dose formulation: A liquid formulation containing 4μg total protein with aluminum hydroxide adjuvant (0·45 mg/mL) per 0·5 mL (2-dose schedule followed by a booster dose).~Mode of Administration:~Intramuscular~Storage Conditions: 2°C to 8°C

Intervention type: BIOLOGICAL
Group type: EXPERIMENTAL
Intervention: BBIBP-CorV - Inactivated SARS-CoV-2 vaccine (Vero cell)
Description: The Inactivated SARS-CoV-2 vaccine (Vero cell)- BBIBP-CorV manufactured by Beijing Institute of Biological Products (BIBP), China National Biotec Group (CNBG), Sinopharm, Beijing, People's Republic of China~Dose formulation: A liquid formulation containing 4μg total protein with aluminum hydroxide adjuvant (0·45 mg/mL) per 0·5 mL (2-dose schedule followed by a booster dose).~Mode of Administration:~Intramuscular~Storage Conditions: 2°C to 8°C

Intervention type: BIOLOGICAL
Group type: EXPERIMENTAL
Intervention: Ad26.COV2.S (Recombinant, replication-incompetent adenovirus serotype 26 (Ad26) vector encoding a full-length and stabilized SARS-CoV-2 spike protein),
Description: Ad26.COV2.S (Recombinant, replication-incompetent adenovirus serotype 26 (Ad26) vector encoding a full-length and stabilized SARS-CoV-2 spike protein), manufactured by Johnson and Johnson in the United States of America.~Dose formulation: One dose (0.5 ml) contains contains 5 x 10 10 virus particles~Mode of administration: Intramuscular~Storage Conditions: 2°C to 8°C

Intervention type: BIOLOGICAL
Group type: EXPERIMENTAL
Intervention: Ad26.COV2.S (Recombinant, replication-incompetent adenovirus serotype 26 (Ad26) vector encoding a full-length and stabilized SARS-CoV-2 spike protein),
Description: Ad26.COV2.S (Recombinant, replication-incompetent adenovirus serotype 26 (Ad26) vector encoding a full-length and stabilized SARS-CoV-2 spike protein), manufactured by Johnson and Johnson in the United States of America.~Dose formulation: One dose (0.5 ml) contains contains 5 x 10 10 virus particles~Mode of administration: Intramuscular~Storage Conditions: 2°C to 8°C

Intervention type: BIOLOGICAL
Group type: EXPERIMENTAL
Intervention: Ad26.COV2.S (Recombinant, replication-incompetent adenovirus serotype 26 (Ad26) vector encoding a full-length and stabilized SARS-CoV-2 spike protein),
Description: Ad26.COV2.S (Recombinant, replication-incompetent adenovirus serotype 26 (Ad26) vector encoding a full-length and stabilized SARS-CoV-2 spike protein), manufactured by Johnson and Johnson in the United States of America.~Dose formulation: One dose (0.5 ml) contains contains 5 x 10 10 virus particles~Mode of administration: Intramuscular~Storage Conditions: 2°C to 8°C

Intervention type: BIOLOGICAL
Group type: EXPERIMENTAL
Intervention: Placebo - Normal saline (0.9% sodium chloride solution)
Description: Placebo - Normal saline (0.9% sodium chloride solution)~Dose formulation: Not Applicable~Mode of administration: Intramuscular~Storage conditions: 15°C to 30°C