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. 2021 Feb 5;18(1):1865774. doi: 10.1080/21645515.2020.1865774

Table 1.

Different potential vaccines against COVID-19 (prepared after Milken Institute web page for corona monitoring for development on emerging vaccine candidates scheduled in 2020)

Category of Probable Vaccine candidates Descriptions Phase of Development Clinical Trials for COVID-19 Identifier ID Used in other Diseases
DNA-vaccines DNA plasmid; INO-4800 Started Phase 1 in April 2020; initial data expected June 2020; could enter Phase 2/3 trials as early as summer 2020 NCT04336410 Same platform as vaccine candidates for Lassa, Nipah, HIV, Filovirus, HPV, cancer indications, Zika, and Hepatitis B
DNA plasmid Pre-clinical  
DNA plasmid, needle-free delivery   Same platform as vaccine candidates for SARS
DNA   Same platform as vaccine candidates for cancer
Inactivated virus Inactivated (inactivated + alum) Phase 1/2 started April 2020 NCT04352608 Same platform as vaccine candidates for HAV, InfA, ZIKV, FMD, SIV, RSV, DENV
Inactivated virus Phase 1 started in May 2020 ChiCTR2000031809 Same platform as vaccine candidates for MERS
Inactivated (inactivated + CpG 1018) Pre-clinical  
Inactivated virus   Same platform as vaccine candidates for influenza
VLA2001, Inactivated   Same platform as vaccine candidates for Japanese Encephalitis
Live attenuated virus Codon deoptimized live attenuated virus Pre-clinical Same platform as vaccine candidates for LASV, EBOV, MARV, HIV Animal data in summer 2020
Non-replicating viral vector Non-replicating viral vector; MVA encoded VLP Pre-clinical Same platform as vaccine candidates for influenza, TB, Chikungunya, Zika, MenB, plague
  Non-replicating viral vector; Ad26 (alone or with MVA boost)   Same platform as vaccine candidates for many pathogens
  Non-replicating viral vector; replication defective simian adenovirus (GRAd) encoding SARS-CoV-2 S   Same platform as vaccine candidates for influenza
  Non-replicating viral vector; Ad5   Same platform as vaccine candidates for MERS
  Non-replicating viral vector; ChAdOx1 Phase 1/2 began April 2020, data expected in May 2020; Phase 2/3 trials expected to start by the middle of 2020 NCT04324606 Same platform as vaccine candidates for InfA, CHIKV, LASV, NORV, EBOV, RVF, HBV, VEE
  Non-replicating viral vector; MVA-S encoded Pre-clinical Same platform as vaccine candidates for EBOV
  AdCOVID; single-dose, intranasal vaccine; non-replicating viral vector; adenovirus-based NasoVAX expressing spike protein   Same platform as vaccine candidates for HPV
  Non-replicating viral vector; Ad5 S (GREVAX™ platform)    
  Oral Ad5 S    
  Adenovirus-based + HLA-matched peptides (Pan-Corona)    
  Non-replicating viral vector; Oral Vaccine platform    
  Recombinant deactivated rabies virus containing S1    
  Non-replicating viral vector, MVA expressing structural proteins   Same platform as vaccine candidates for Influenza
  Non-replicating viral vector; dendritic cell-based vaccine    
  Non-replicating viral vector; parainfluenza virus 5 (PIV5)-based vaccine expressing the spike protein   Same platform as vaccine candidates for MERS
  Non-replicating viral vector; Adenovirus Type 5 vector (Ad5-nCoV) Phase 2 started April 2020 NCT04313127 ChiCTR2000030906ChiCTR2000031781 Same platform as vaccine candidates for HIV, RSV, Influenza
Protein subunit Protein subunit, capsid-lide particle (CLP) Pre-clinical Phase 1 to begin by February 2021 
  Protein subunit, drosophila S2 insect cell expression system VLPs    
  Protein subunit; S protein    
  Protein subunit, S protein + adjuvant    
  Protein subunit, VLP-recombinant protein + adjuvant   Same platform as vaccine candidates for HIV, SARS-CoV, Influenza
  Protein subunit, native like trimeric subunit spike protein   Same platform as vaccine candidates for Inf H7N9
  Protein subunit; peptide   Same platform as vaccine candidates for MERS
  Protein subunit; adjuvanted protein subunit (RBD)   Influenza, Ebola
  Protein subunit; S protein   Same platform as vaccine candidates for HPV
  Protein subunit; recombinant spike protein with Advax adjuvant   Same platform as vaccine candidates for Influenza, SARS-CoV (FDA approved vaccine)
  Protein subunit; Ii-Key peptide   Same platform as vaccine candidates for RSV, CCHF, HPV, VZV, EBOV
  Protein subunit; S protein   Same platform as vaccine candidates for cancer (NSCLC), HIV, malaria, Zika
  PittCoVacc, Protein subunit, microneedle arrays S1 subunit   Same platform as vaccine candidates for Nipah, influenza, Ebola, Lassa
  Protein subunit; S protein   Same platform as vaccine candidates for SARS
  Protein subunit; COVID-19 XWG-03 truncated Spike proteins    
  Protein subunit; S protein, baculovirus production    
  Protein subunit; recombinant protein vaccine, utilizing baculovirus expression vector system technology    
  NVX-CoV2373; Protein subunit; Full length S trimers/nanoparticle + Matrix M    
  Protein subunit (gp-96 backbone)   Same platform as vaccine candidates for Ebola, Marburg, HIV, Zika, Influenza, HPV therapeutic vaccine, Breast Cancer
  Protein subunit; peptide vaccine   Same platform as vaccine candidates for Ebola
  Protein subunit; molecular clamp stabilized Spike protein    
  Protein subunit; S1 or RBD protein   Same platform as vaccine candidates for cancer and infectious diseases, including malaria and anthrax
  Protein subunit, recombinant protein, nanoparticles (based on S-protein and other epitopes)    
  Protein subunit, adjuvanted microsphere peptide   Same platform as vaccine candidates for West nile, CHIKV, Ebola, Lassa, Zika, MERS Animal testing results expected in April 2020
  Protein subunit, peptide   Same platform as vaccine candidates for Zika, H7N9, CHIKV
  Protein subunit, synthetic long peptide vaccine candidate for S and M proteins   Same platform as vaccine candidates for smallpox, monkeypox
  Protein subunit; oral E. coli-based protein expression system of S and N proteins   Same platform as vaccine candidates for Ebola, Marburg, Lassa
  Protein subunit, nanoparticle vaccine    
  Protein subunit; spike based    
  Protein subunit, recombinant S1-Fc fusion protein    
  Protein subunit, recombinant protein    
  Protein subunit, recombinant S protein in IC-BEVS    
  Protein subunit; DPX-COVID-19, protein subunit, peptide antigens formulated in LNP   Start Phase 1 testing by summer 2020 
  Protein subunit; plant virus nanotechnology formulated as injectable and microneedle patch    
Replicating viral vector Replicating viral vector; YF17D Vector Pre-clinical  
  Replicating viral vector; measles vector   Same platform as vaccine candidates for multiple candidates Start animal testing in April 2020
  Live attenuated virus, measles virus (S, N targets)   Same platform as vaccine candidates for multiple candidates
  Replicating viral vector; horsepox vector; TNX-1800   Same platform as vaccine candidates for EBOV, LASV, MARV, Inf (H7N9), RABV
  Replicating viral vector, live viral vectored vaccine based on attenuated influenza virus backbone (intranasal)   Same platform as vaccine candidates for RABV, LASV, YFV, MERS, InfA, ZIKV, DengV, NIPV
  Replicating viral vector, recombinant vaccine based on Influenza A virus, for the prevention of COVID-19 (intranasal)   Same platform as vaccine candidates for influenza
  Replicating viral vector, replication-competent VSV chimeric virus technology (VSVdeltaG) delivering the SARS-CoV-2 Spike (S) glycoprotein    
  Replicating viral vector, influenza vector expressing RBD   Same platform as vaccine candidates for cancer
  M2-deficient single replication (M2SR) influenza vector   Same platform as vaccine candidates for influenza
RNA- vaccine RNA; LNP-encapsulated mRNA cocktail encoding VLP Pre-clinical  
  RNA; Replicating defective SARS-CoV-2 derived RNAs   Same platform as vaccine candidates for flu, rotavirus, norovirus, West Nile virus, and cancer
  RNA; LNP-encapsulated mRNA    
  RNA; several mRNA candidates    
  RNA; LNP-encapsulated mRNA (mRNA 1273) Phase 1 started March 2020, study ends June 2021; Phase 2 to start Q2 2020; Phase 3 to start fall 2020 NCT04283461  
  LUNAR-COV19; RNA; mRNA Pre-clinical  
  RNA; saRNA    
  RNA; mRNA    
  RNA; mRNA; BNT162 Phase 1/2 started April 2020 EudraCT 2020-001038-36  
  RNA; liposome-encapsulated mRNA Pre-clinical  Animal studies begin in April 2020
  RNA; mRNA in an intranasal delivery system (cross-strain protective COV-2 mRNA) vaccine for high-risk populations    
  RNA; ZIP-1642, vaccine consists of a combination of mRNA molecules, encoding multiple SARS-CoV-2 antigens    
Virus Like Particle VLP; virus-like particle, based on RBD displayed on virus-like particle Pre-clinical  
VLP; plant-derived VLP    
VLP; ADDomerTM multiepitope display    
VLP (COVID-19 and SARS1)    
VLP; eVLP   Same platform as vaccine candidates for malaria
Enveloped virus-like particle (eVLP): Pan-coronavirus vaccine candidate, targeting COVID-19, SARS, and MERS, spike protein   Same platform as vaccine candidates for glioblastoma, cytomegalovirus, and Zika
Unknown Self-assembling vaccine (fusion protein of a heat shock protein and Avidin, with biotinylated immunogenic peptides) Pre-clinical  Animal study results by October 2020
LV-SMENP-DC Dendritic cells modified with lentiviral vector expressing synthetic minigene based on domains of selected viral proteins; administered with antigen-specific cytotoxic T lymphocytes Phase 1/2 started March 2020 NCT04276896  
Artificial antigen-presenting cells modified with lentiviral vector expressing synthetic minigene based on domains of selected viral proteins Phase 1. Started February 2020 NCT04299724  
ISR-50 Pre-clinical  Animal study results expected in Q2 2020, Phase 1 begins Q4 2020
Unknown    Phase 1 begins as early as September 2020
Unknown   Phase 1 to start in summer 2020