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Phase II COVID-19 Vaccines

This site presents COVID-19 vaccines that are currently in Phase II clinical trials as of February 17, 2021.

Current Phase II COVID-19 vaccines include:

1. AdCLD-CoV19
• Clinical trial ID:
• Phase I/II: NCT04666012
• Age subgroups: 19-64 years
• Location: South Korea
• Type: Recombinant vector vaccine
• Manufacturer: Cellid Co., Ltd.
• VIOLIN: 5800
• VO: VO_0004996
2. AKS-452
• Clinical trial ID:
• Phase I/II: NCT04681092
• Age subgroups: 18-55 years
• Location: Netherlands
• Type: Subunit vaccine
• Manufacturer: University Medical Center Groningen, Akston Biosciences Inc.
• VIOLIN: 5834
• VO: VO_0004999
3. ARCT-021
• Other names: LUNAR-COV19
• Clinical trial ID:
• Phase II: NCT04728347
• Age subgroups: 21-80 years
• Location: Singapore
• Phase I/II: NCT04480957
• Age subgroups:
• Phase I: 21-55 years
• Phase II: 21-55 years, 56-80 years
• Location: Singapore
• Type: mRNA vaccine
• Manufacturer: Arcturus Therapeutics, Duke-NUS Medical School
• VIOLIN: 5781
• VO: VO_0005164
4. AV-COVID-19
• Clinical trial ID:
• Phase I/II: NCT04386252
• Age subgroups: 18 years and older
• Location: USA
• Type: Recombinant vector vaccine
• Manufacturer: Aivita Biomedical, Inc.
• VIOLIN: 5801
• VO: VO_0005079
5. BECOV2A
• Clinical trial ID:
• Phase I/II: CTRI/2020/11/029032
• Age subgroups:
• Phase I: 18-55 years
• Phase II: 18-65 years
• Location: India
• Type: Subunit vaccine
• Manufacturer: Biological E
• VIOLIN: 5802
• VO: VO_0005081
6. CIGB-66
• Clinical trial ID:
• Phase I/II: RPCEC00000346
• Age subgroups:
Phase I: 19-54 years
Phase II: 19-80 years
• Location: Cuba
• Type: Subunit vaccine
• Manufacturer: Center for Genetic Engineering and Biotechnology (CIGB)
• VIOLIN: 5803
• VO: VO_0005082
7. CIGB-669
• Clinical trial ID:
• Phase I/II: RPCEC00000345
• Age subgroups:
Phase I: 19-54 years
Phase II: 19-80 years
• Location: Cuba
• Type: Subunit vaccine
• Manufacturer: Center for Genetic Engineering and Biotechnology (CIGB)
• VIOLIN: 5804
• VO: VO_0005083
8. COVAC
• Clinical trial ID:
• Phase I/II: NCT04702178
• Age subgroups: 18-54 years, 55-69 years, 70 years and above
• Location: Canada
• Type: Subunit vaccine
• Manufacturer: Vaccine and Infectious Disease Organization (VIDO), SEPPIC, Vaccine Formulation Institute (VFI)
9. COVID-19 inactivated virus vaccine by Shenzhen Kangtai Biological Products
• Clinical trial ID:
• Phase II: ChiCTR2000039462
• Age subgroups: 18 years and above
• Location: China
• Phase I: ChiCTR2000038804
• Age subgroups: 18 years and above
• Location: China
• Type: Inactivated or "killed" vaccine
• Manufacturer: Shenzhen Kangtai Biological Products Co., Ltd.
• VIOLIN: 5805
• VO: VO_0005084
10. COVID-19 protein subunit vaccine by Sanofi and GSK
• Clinical trial ID:
• Phase I/II: NCT04537208
• Age subgroups: 18-49 years, 50 years and above
• Location: USA
• Type: Subunit vaccine
• Manufacturer: Sanofi Pasteur, GSK
• VIOLIN: 5833
• VO: VO_0005085
11. DelNS1-2019-nCoV-RBD-OPT1
• Clinical trial ID:
• Phase II: ChiCTR2000039715
• Age subgroups: 18 years and above
• Location: China
• Type: Recombinant vector vaccine
• Manufacturer: Beijing Wantai Biological Pharmacy, Xiamen University
• VIOLIN: 5806
• VO: VO_0005087
12. GBP510
• Clinical trial ID:
• Phase I/II: NCT04750343
• Age subgroups:
• Phase I: 19-55 years
• Phase II: 19-85 years
• Location: South Korea
• Type: Subunit vaccine
• Manufacturer: SK Bioscience Co., Ltd.
• VIOLIN: 5831
13. GLS-5310
• Clinical trial ID:
• Phase I/II: NCT04673149
• Age subgroups:
  • Phase I: 19-50 years
  • Phase II: 19-65 years
• Location: South Korea
• Type: DNA vaccine
• Manufacturer: GeneOne Life Science, Inc.
• VIOLIN: 5807
• VO: VO_0005089
14. GX-19
• Clinical trial ID:
• Phase I/II: NCT04715997
• Age subgroups: 18-55 years
• Location: South Korea
• Phase I/II: NCT04445389
• Age subgroups: 18-50 years
• Location: South Korea
• Type: DNA vaccine
• Manufacturer: Genexine
• VIOLIN: 5788
• VO: VO_0005170
15. IIBR-100
• Other names: BriLife
• Clinical trial ID:
• Phase I/II: NCT04608305
• Age subgroups:
• Phase I: 18-55 years
• Phase II: 18-55 years, 56-85 years
• Location: Israel
• Type: Recombinant vector vaccine
• Manufacturer: Israel Institute for Biological Research, Weizmann Institute of Science
• VIOLIN: 5799
• VO: VO_0005090
16. KBP-COVID-19
• Clinical trial ID:
• Phase I/II: NCT04473690
• Age subgroups: 18-49 years, 50-70 years
• Type: Subunit vaccine
• Manufacturer: Kentucky BioProcessing
• VIOLIN: 5792
• VO: VO_0005171
17. LV-SMENP-DC
• Clinical trial ID:
• Phase I/II: NCT04276896
• Age subgroups: 6 months to 80 years
• Location: China
• Type: Recombinant vector vaccine
• Manufacturer: Shenzhen Geno-Immune Medical Institute
• VIOLIN: 5808
• VO: VO_0005091
18. MVC-COV1901
• Clinical trial ID:
• Phase II: NCT04695652
• Age subgroups: 20-64 years, 65 years and above
• Location: Taiwan, Vietnam
• Type: Subunit vaccine
• Manufacturer: Medigen; Dynavax
• VIOLIN: 5828
• VO: VO_0005192
19. Nanocovax
• Clinical trial ID:
• Phase I/II: NCT04683484
• Age subgroups:
• Phase I: 18-50 years
• Phase II: 12-75 years
• Location: Vietnam
• Type: Subunit vaccine
• Manufacturer: Nanogen Pharmaceutical Biotechnology
• VIOLIN: 5809
• VO: VO_0005092
20. QazCovid-in
• Clinical trial ID:
• Phase II: NCT04530357
• Age subgroups:
• Phase I: 18-50 years
• Phase II: 18 years and above
• Location: Kazakhstan
• Type: Inactivated or "killed" vaccine
• Manufacturer: Research Institute for Biological Safety Problems, National Scientific Center for Phthisiopulmonology of the Republic of Kazakhstan
• VIOLIN: 5810
• VO: VO_0005093
21. RBD-HBsAg VLP
• Clinical trial ID:
• Phase I/II: ACTRN12620000817943
• Age subgroups:
• Phase I: 18-45 years
• Phase II: 18-79 years
• Location: Australia
• Type: Virus Like Particle
• Manufacturer: Serum Institute of India, Accelegen Pty
• VIOLIN: 5811
• VO: VO_0005094
22. Recombinant SARS-CoV-2 vaccine (Sf9 cell)
• Clinical trial ID:
• Phase II: NCT04640402
• Age subgroups: 18-59 years, 60 years and above
• Location: China
• Phase II: NCT04718467
• Age subgroups: 18-59 years, 60 years and above
• Location: China
• Type: Subunit vaccine
• Manufacturer: West China Hospital, Sichuan University
• VIOILN: 5812
• VO: VO_0005095
23. S-268019
• Clinical trial ID:
• Phase I/II: jRCT2051200092
• Age subgroups: 20-64 years
• Location: Japan
• Type: Subunit vaccine
• Manufacturer: Shionogi
• VIOLIN: 5813
• VO: VO_0005096
24. Soberana
• Clinical trial ID:
• Phase I/II: IFV/COR/04
• Age subgroups: 19-59 years, 60-80 years
• Location: Cuba
• Phase II: IFV/COR/08
• Age subgroups: 19-80 years
• Location: Cuba
• Type: Subunit vaccine
• Manufacturer: Instituto Finlay de Vacunas, Cuba
• VIOLIN: 5814
• VO: VO_0005097
25. VLA2001
• Clinical trial ID:
• Phase I/II: NCT04671017
• Age subgroups: 18-55 years
• Location: UK
• Type: Inactivated or "killed" vaccine
• Manufacturer: Valneva, National Institute for Health Research (UK)
• VIOLIN: 5816
• VO: VO_0005099
26. ZyCoV-D
• Clinical trial ID:
• Phase I/II: CTRI/2020/07/026352
• Age subgroups:
• Phase I: 18-45 years
• Phase II: 18-79 years
• Location: Australia
• Type: DNA vaccine
• Manufacturer: Zydus Cadila
• VIOLIN: 5778
• VO: VO_0005162

Provenance: All data in Cov19VaxKB originates from manual curation of reliable resources

Note: The page was updated on February 17, 2021. We plan to update this page on a weekly or even a daily basis. Please provide us with any new information that you believe would be useful if included on the website.