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Safety and Immunogenicity of COVID-eVax, a Candidate Plasmid DNA Vaccine for COVID-19, in Healthy Adult Volunteers

A Phase I/II Study to Assess the Safety and Immunogenicity of COVID-eVax, a Candidate Plasmid DNA Vaccine for COVID-19, in Healthy Adult Volunteers

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04788459
Enrollment
68
Registered
2021-03-09
Start date
2021-02-25
Completion date
2021-12-07
Last updated
2023-03-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19, COVID-19 Immunisation, Protection Against COVID-19 and Infections With SARS-CoV- 2

Keywords

Infections Viral, Coronavirus Disease 2019, Respiratory Tract Infections, Vaccine, SARS-COV-2

Brief summary

This is a multicentre, open-label Phase 1/2 study, with a first-in-human (FIH) dose escalation part (Phase 1 study) followed by an open-label single arm (or two-arms, randomized) dose expansion part (Phase 2 study). The vaccine will be administered by intramuscular (IM) injection followed by electroporation (EP) applied to the injection site. The study is aimed at assessing the safety and immunogenicity of COVID-eVax, a DNA plasmid-based vaccine whose target antigen is a portion of the S protein of SARS-CoV-2 virus (the Receptor Binding Domain located in the CTD1 of the S1 region of the S protein). In animal models COVID-eVax was safe and induced high immunological humoral and cellular response.

Interventions

BIOLOGICALCOVID-eVax

Plasmid DNA Vaccine for COVID-19

DEVICECliniporator® and EPSGun

IGEA Electroporation Device

Sponsors

Rottapharm Biotech
CollaboratorINDUSTRY
Takis
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

1. Signed and dated informed consent obtained before undergoing any study-specific procedure 2. Healthy male or female aged ≥18 and ≤ 65 years 3. Body Mass Index \>18.5 and ≤30 kg/m2 4. Vital signs within the following values or ranges: 1. Body temperature ≤ 37,5 °C 2. Pulse frequency ≥51 and ≤100 beats per minute 3. Diastolic BP ≥60 mmHg, ≤ 90 mmHg 4. Systolic BP ≥ 90 mmHg, ≤ 140 mmHg 5. Respiratory rate ≥ 12 breaths per minute, ≤ 16 breaths per minute 5. ECG at screening normal or with no clinically significant findings (pre-excitation syndromes, e.g., Wolff-Parkinson-White syndrome are absolute

Exclusion criteria

) 6. Laboratory examinations within normal reference range or with no clinically significant abnormalities 7. Absence of any respiratory and flu-like symptoms 8. Non-pregnant women of childbearing potential, willing to practice a highly effective method of contraception from enrolment up to study completion or at least 90 days after the last vaccination in case of withdrawal 9. For sexually active men with a female partner of childbearing potential, willingness to use a condom and to refrain from donating sperm from enrolment up to study completion or at least 90 days after the last vaccination in case of withdrawal 10. Agreement to refrain from blood donation during the course of the study 11. Able and willing to comply with all study procedures.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of solicited local Adverse events (AEs) at the injection site (for Phase 1)Through 7 days post-each vaccination
Incidence of solicited systemic AEs (for Phase 1)Through 7 days post-each vaccination
Incidence of unsolicited AEs (for Phase 1)through 4 weeks post-each vaccination
White Blood Cell (WBC) levels (for Phase 1)through 4 weeks post-each vaccinationChange from baseline at specific timepoints
Red Blood Cell (RBC) levels (for Phase 1)through 4 weeks post-each vaccinationChange from baseline at specific timepoints
Platelets levels (for Phase 1)through 4 weeks post-each vaccinationChange from baseline at specific timepoints
Alanine Transaminase (ALT) levels (for Phase 1)through 4 weeks post-each vaccinationChange from baseline at specific timepoints
Aspartate Transaminase (AST) levels (for Phase 1)through 4 weeks post-each vaccinationChange from baseline at specific timepoints
Creatine Phosphokinase (CPK) levels (for Phase 1)through 4 weeks post-each vaccinationChange from baseline at specific timepoints
Quantitative antibody titers, binding to the specific SARS-CoV-2 antigen (for Phase 2)through 4 weeks post-last vaccinationGeometric Mean Titer (GMT) and Geometric Mean Fold Rise (GMFR) from baseline
SARS-CoV-2 neutralizing antibody titer (for Phase 2)through 4 weeks post-last vaccinationGMT and GMFR from baseline
Change from baseline in antigen-specific cellular immune responses to SARS-CoV-2 (for Phase 2)through 4 weeks post-last vaccinationInterferon-gamma (IFN-γ) ELISpot
Percentage of subjects who seroconverted (for Phase 2)through 4 weeks post-last vaccination

Secondary

MeasureTime frameDescription
Quantitative antibody titers, binding to the specific SARS-CoV-2 antigen (for Phase 1)through 4 weeks post-last vaccinationGMT and GMFR from baseline
Creatine Phosphokinase (CPK) levels (for Phase 2)through 4 weeks post-each vaccinationChange from baseline at specific timepoints
SARS-CoV-2 neutralizing antibody titer (for Phase 1)through 4 weeks post-last vaccinationGMT and GMFR from baseline
Change from baseline in antigen-specific cellular immune responses to SARS-CoV-2 (for Phase 1)through 4 weeks post-last vaccinationInterferon-gamma (IFN-γ) ELISpot
Percentage of subjects who seroconverted (for Phase 1)through 4 weeks post-last vaccination
Incidence of unsolicited AEs (for Phase 1)through study completion (6 months)
Incidence of solicited local AEs at the injection site (for Phase 2)Through 7 days post-each vaccination
Incidence of solicited systemic AEs (for Phase 2)Through 7 days post-each vaccination
Incidence of unsolicited AEs (for Phase 2)through 4 weeks post-each vaccination
White Blood Cell (WBC) levels (for Phase 2)through 4 weeks post-each vaccinationChange from baseline at specific timepoints
Red Blood Cell (RBC) levels (for Phase 2)through 4 weeks post-each vaccinationChange from baseline at specific timepoints
Platelets levels (for Phase 2)through 4 weeks post-each vaccinationChange from baseline at specific timepoints
Alanine Transaminase (ALT) levels (for Phase 2)through 4 weeks post-each vaccinationChange from baseline at specific timepoints
Aspartate Transaminase (AST) levels (for Phase 2)through 4 weeks post-each vaccinationChange from baseline at specific timepoints

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026