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COVID-19Phase 1/2NCT05576623

Safety and Immunogenicity of AdCLD-CoV19-1 OMI as a Booster: A SARS-CoV-2 (COVID-19) Preventive Vaccine

A Phase 1/2 study testing AdCLD-CoV19-1 OMI (Part A) and AdCLD-CoV19-1 OMI (Part B) in people with COVID-19 and Vaccines, run by Cellid Co., Ltd. at 7 sites in South Korea.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The safety and immunogenicity of AdCLD-CoV19-1 OMI (5.0x10^10 VP (0.5 mL)/dose/Vial) administered as a booster in healthy adults aged 19 years old and above will be evaluated. Read more about this study

Who is it for?
Ages 19 years and olderHealthy volunteers can take part
Conditions the study is for
COVID-19, Vaccines
What is being tested?
AdCLD-CoV19-1 OMI (Part A) and AdCLD-CoV19-1 OMI (Part B)
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
320 participants
Where
7 sitesSouth Korea
Study dates
14 Sep 2022to 28 Feb 2024
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 19 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • (Part A) Individual aged between 19-64 years old and willing to provide written informed consent to participate study voluntarily.
  • (Part B) Individual aged 19 years and above and willing to provide written informed consent to participate study voluntarily.
  • Individual fall under one or more of the following;
  • Those who have been at least 16 weeks (112 days) and less than 48 weeks (336 days) without additional COVID-19 vaccination since the last COVID-19 vaccination.
  • Those who have been at least 16 weeks (112 days) or more and less than 48 weeks (336 days) since the release of quarantine due to COVID-19 confirmation.
  • Individual with body mass index (BMI) of 30.0 kg/m2 or less at screening visit.
  • Individual who agrees with using an effective birth control method for at least 4 weeks before the screening and during the study period.
  • Individual who agrees not to donate or transfuse blood (including whole blood, plasma components, platelet components, and platelet plasma components) during the study period.

Who cannot join

  • Individual who has history of COVID-19 or is considered infected within 16 weeks (112 days) prior to administration of investigational product.
  • Individual who has received other COVID-19 vaccine within 16 weeks (112 days) prior to administration of investigational product.
  • Individual who has been in close contact with a COVID-19 infected person, or has been classified as a confirmed or suspected COVID-19 patient within 14 days prior to administration of investigational product.
  • Individual determined to be clinically significantly abnormal by the screening outcome based on laboratory evaluations, electrocardiogram (ECG) and Chest X-ray.
  • Individual who has ant results of positive to HIV test, hepatitis B test, and hepatitis C test on screening.
  • Acute febrile illness with 38°C and above, or any suspected infectious diseases, or symptoms similar to COVID-19 (cough, shortness of breathe, chills, myalgia, headache, sore throat, loss of taste/smell, etc.) within 3 days prior to administration of investigational product.
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  • Any serious medical or psychiatric disease which in opinion of investigator judges unable to participate
  • Respiratory diseases: Asthma, Chronic Obstructive Lung Disease (COPD), active or latent tuberculosis which require medication, or individual who has received treatment due to worsening of the respiratory disease within 5 years prior to administration of investigational product.
  • Serious cardiovascular diseases: Congestive heart failure, coronary artery disease, myocardial infarction, uncontrolled hypertension, myocarditis, pericarditis, etc.
  • Neurologic diseases: Epilepsy, seizure within 3 years, migraine, stroke, encephalopathy, Guillain-Barre Syndrome, encephalomyelitis, acute transverse myelitis, etc.
  • Malignant cancer diagnosed within the past 5 years (skin basal cell and squamous cell carcinoma are excluded).
  • Immune function disorders including autoimmune hypothyroidism, psoriasis.
  • Auto-immune diseases.
  • History of dependently administering psychotropic drugs or narcotic painkillers within 24 weeks prior to administration of investigational product, or psychiatric disease or behavioral impairment that, in the opinion of the investigator, could interfere with the participant's ability to participate in the trial.
  • Other hepatobiliary, renal, endocrine, urinary tract, muscular skeletal diseases which the investigator considers clinically significant.
  • History of splenectomy.
  • History of SARS-CoV or MERS-CoV infection.
  • Known history of allergic or hypersensitivity to the components of investigational product.
  • Known history of serious adverse reactions, allergies or hypersensitivity related to vaccination.
  • History of urticaria within 5 years prior to administration of investigational product.
  • Individual with history of bleeding diathesis or thrombocytopenia, or history of severe bleeding or bruising after intramuscular or intravenous injection, or is receiving an anticoagulant (Those who receive low dose aspirin (less than 100mg/day) are not excluded).
  • Individual with hereditary or idiopathic angioneurotic edema.
  • Individual with solid organ or bone marrow transplantation.
  • Individual who is suspected or with history of substance abuse and alcohol abuse within 24 weeks prior to administration of investigational product.
  • History of SARS-CoV or MERS-CoV vaccination.
  • History of licensed drug for COVID-19 treatment or prevention aside from COVID-19 vaccine within 52 weeks prior to administration of investigational product.
  • Use of immunosuppressive or chronic use of systemic steroids within 6 weeks prior to administration of investigational product (External steroids, nasal spray and inhalants are allowed).
  • Immunosuppressive: Azathioprine, Cyclosporine, Interferon, G-CSF, Tacrolimus, Everolimus, Sirolimus, Cyclophosphamide, 6-Mercaptopurine, Methotrexate, Rapamycin, Leflunomide, etc.
  • Chronic steroid: >10 mg/day prednisone equivalent for periods exceeding 14 days)
  • Individuals who has administered other investigational product or device within 24 weeks prior to screening visit.
  • Individual concomitantly enrolled or scheduled to be enrolled in another trial (including follow-up period).
  • Individual vaccinated or planned vaccination within 28 days prior and after the administration of investigational product.
  • Receipt of immunoglobulin or blood-derived products within 12 weeks prior to administration of investigational product.
  • Individual with scheduled surgery during the study period.
  • Pregnant or lactating women.
  • Individual directly related to the investigator and meets the following conditions:
  • Personnel relationship or subordinate-superior relationship (employees of the investigator's department, staffs of this trial)
  • Students or researchers in the immediate department of the school to which the investigator belongs (e.g., medical university)
  • Individual who is unfit for this study for any other reason in judgement of investigator.

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

South Korea7 sites
  • Hallym University Dongtan Sacred Heart Hospital

    Gyeonggi-do

  • Korea University Ansan Hospital

    Gyeonggi-do

  • The Catholic University of Korea ST. Vincent's Hospital

    Gyeonggi-do

  • Gachon University Gil Medical Center

    Incheon

  • Inha University Hospital

    Incheon

  • Hallym University Kangnam Sacred Heart Hospital

    Seoul

  • Korea University Guro Hospital

    Seoul

Other trials in South Korea

About this study

Official title: A Phase I/II (Single Center, Open, Phase I and Multicenter, Double-Blinded, Randomized, Placebo-Controlled, Phase II) Trial to Evaluate the Safety and Immunogenicity of the AdCLD-CoV19-1 OMI Administered as a Booster to Healthy Adults Aged 19 Years Old and Above

The safety and immunogenicity of AdCLD-CoV19-1 OMI (5.0x10^10 VP (0.5 mL)/dose/Vial) administered as a booster in healthy adults aged 19 years old and above will be evaluated.

Conditions
COVID-19, Vaccines
Being tested
AdCLD-CoV19-1 OMI (Part A), AdCLD-CoV19-1 OMI (Part B), Placebo (Part B)
Keywords
COVID-19, SARS-CoV-2, Omicron, B.1.1.529
Medical subject headings
COVID-19

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AdCLD-CoV19-1 OMI (Part A)Biological

    20 participants will receive investigational product (AdCLD-CoV19-1 OMI) via intramuscular injection in the deltoid muscle

  • AdCLD-CoV19-1 OMI (Part B)Biological

    250 participants will receive investigational product (AdCLD-CoV19-1 OMI) via intramuscular injection in the deltoid muscle

  • Placebo (Part B)Other

    50 participants will receive placebo via intramuscular injection in the deltoid muscle

Study groups in NCT05576623
Study groupRoleWhat they receive
1 dose of AdCLD-CoV19-1 OMI (Part A)ExperimentalGroup in Part A will receive 1 dose of AdCLD-CoV19-1 OMI
Receives: Biological: AdCLD-CoV19-1 OMI (Part A)
1 dose of AdCLD-CoV19-1 OMI (Part B)ExperimentalGroup 1 in Part B will receive 1 dose of AdCLD-CoV19-1 OMI
Receives: Biological: AdCLD-CoV19-1 OMI (Part B)
Placebo (Part B)Placebo comparatorGroup 2 in Part B will receive 1 dose of placebo
Receives: Other: Placebo (Part B)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proportion of immediate adverse events (AE)

    Proportion of immediate AE within 30 minutes post dose injection.

    Measured: Within 30 minutes post dose injection

  2. Proportion of solicited local and systemic AE

    Proportion of solicited local and systemic AEs within 7 days post dose injection. Local AEs at the site of injection: Pain, tenderness, erythema/redness, swelling/induration, pruritis. Systemic AEs: Fever, fatigue/general weakness, chill, headache, myalgia, arthralgia, diarrhea, nausea/vomiting, abdominal pain, mucocutaneous reaction/rash, urticaria, dizziness, cough, dyspnea.

    Measured: Within 7 days (Days 0 - 6) post dose injection

  3. Proportion of unsolicited AE

    Proportion of unsolicited AEs within 28 days post dose injection. Unsolicited AEs are all other adverse events (those that do not fall under the categories of solicited AEs).

    Measured: Within 28 days post dose injection

  4. Proportion of SAE

    Proportion of any SAE from the administration throughout the entire study. An AE or suspected adverse reaction is considered "serious": Results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect or is an important medical event that may jeopardize the participant or may require intervention to prevent one of the other outcomes listed above.

    Measured: Throughout the study duration, 12 months post dose injection

  5. Proportion of Adverse Event Of Special Interest (AESI)

    Proportion of any AESI from the administration throughout the entire study. AESI are categorized into 1) AESIs included because they are seen with COVID-19 Disease, 2) AESI included because they have a proven or theoretical association with immunization in general, 3) AESI included because they have a proven or theoretical association with specific vaccine platform(s).

    Measured: Throughout the study duration, 12 months post dose injection

  6. Proportion of Medically-Attended Adverse Events (MAAE)

    Proportion of any MAAE from the administration throughout the entire study. Medically-attended AEs are AEs with medically-attended visits including hospital, emergency room, or other visits to or from medical personnel for any reason. Routine study visits will not be considered medically attended visits.

    Measured: Throughout the study duration, 12 months post dose injection

  7. Proportion of clinically significant changes in clinical safety laboratory parameters

    Proportion of clinically significant changes in clinical safety laboratory parameters at 7, 14, 28 days post dose injection.

    Measured: At 7, 14, 28 days post dose injection

  8. Proportion of participants achieving seroresponse of 1 dose of AdCLD-CoV19-1 OMI from baseline to 2, 4 weeks post dose injection (Neutralizing antibody)

    Proportion of participants achieving seroresponse (SR defined as at least 2-fold increase from baseline) of wild-type virus neutralizing antibody titer from baseline to 2, 4 weeks post dose injection induced by 1 dose of AdCLD-CoV19-1 OMI.

    Measured: At 2, 4 weeks post dose injection

  9. Geometric Mean Titer of 1 dose of AdCLD-CoV19-1 OMI from baseline to 2, 4 weeks post dose injection (Neutralizing antibody)

    Geometric Mean Titer (GMT) of neutralizing antibody to the SARS-CoV-2 B.1.1.529 measured by wild-type virus neutralization assay from baseline to 2, 4 weeks post dose injection induced by 1 dose of AdCLD-CoV19-1 OMI.

    Measured: At 2, 4 weeks post dose injection

  10. Geometric Mean Fold Rise of 1 dose of AdCLD-CoV19-1 OMI from baseline to 2, 4 weeks post dose injection (Neutralizing antibody)

    Geometric Mean Fold Rise (GMFR) of neutralizing antibody to the SARS-CoV-2 B.1.1.529 measured by wild-type virus neutralization assay from baseline to 2, 4 weeks post dose injection induced by 1 dose of AdCLD-CoV19-1 OMI.

    Measured: At 2, 4 weeks post dose injection

Secondary outcomes (8)
  1. Proportion of participants achieving seroresponse of 1 dose of AdCLD-CoV19-1 OMI from baseline to 12, 26, 52 weeks post dose injection (Neutralizing antibody)

    Proportion of participants achieving seroresponse (SR defined as at least 2-fold increase from baseline) of wild-type virus neutralizing antibody titer from baseline to 12, 26, 52 weeks post dose injection induced by 1 dose of AdCLD-CoV19-1 OMI.

    Measured: At 12, 26, 52 weeks post dose injection

  2. Geometric Mean Titer of 1 dose of AdCLD-CoV19-1 OMI from baseline to 12, 26, 52 weeks post dose injection (Neutralizing antibody)

    Geometric Mean Titer (GMT) of neutralizing antibody to the SARS-CoV-2 B.1.1.529 measured by wild-type virus neutralization assay from baseline to 12, 26, 52 weeks post dose injection induced by 1 dose of AdCLD-CoV19-1 OMI.

    Measured: At 12, 26, 52 weeks post dose injection

  3. Geometric Mean Fold Rise of 1 dose of AdCLD-CoV19-1 OMI from baseline to 12, 26, 52 weeks post dose injection (Neutralizing antibody)

    Geometric Mean Fold Rise (GMFR) of neutralizing antibody to the SARS-CoV-2 B.1.1.529 measured by wild-type virus neutralization assay from baseline to 12, 26, 52 weeks post dose injection induced by 1 dose of AdCLD-CoV19-1 OMI.

    Measured: At 12, 26, 52 weeks post dose injection

  4. Proportion of participants achieving seroresponse of 1 dose of AdCLD-CoV19-1 OMI from baseline to 2, 4, 12, 26, 52 weeks post dose injection (ELISA)

    Proportion of participants achieving seroresponse (SR defined as at least 2-fold increase from baseline) of SARS-CoV-2 B.1.1.529 Spike-binding ELISA IgG antibody from baseline to 2, 4, 12, 26, 52 weeks post dose injection induced by 1 dose of AdCLD-CoV19-1 OMI.

    Measured: At 2, 4, 12, 26, 52 weeks post dose injection

  5. GMT of 1 dose of AdCLD-CoV19-1 OMI from baseline to 2, 4, 12, 26, 52 weeks post dose injection (ELISA)

    GMT of SARS-CoV-2 B.1.1.529 Spike-binding ELISA IgG antibody from baseline to 2, 4, 12, 26, 52 weeks post dose injection induced by 1 dose of AdCLD-CoV19-1 OMI.

    Measured: At 2, 4, 12, 26, 52 weeks post dose injection

  6. GMFR of 1 dose of AdCLD-CoV19-1 OMI from baseline to 2, 4, 12, 26, 52 weeks post dose injection (ELISA)

    GMFR of SARS-CoV-2 B.1.1.529 Spike-binding ELISA IgG antibody from baseline to 2, 4, 12, 26, 52 weeks post dose injection induced by 1 dose of AdCLD-CoV19-1 OMI.

    Measured: At 2, 4, 12, 26, 52 weeks post dose injection

  7. Cell Mediated Immunity (CMI) of 1 dose of AdCLD-CoV19-1 OMI from baseline to 2, 26, 52 weeks post dose injection (Proportion of responders by Interferon-γ (IFN-γ) ELISpot)

    Proportion of responders as measured by Interferon-γ (IFN-γ) ELISpot from baseline to 2, 26, 52 weeks post dose injection induced by 1 dose of AdCLD-CoV19-1 OMI.

    Measured: At 2, 26, 52 weeks post dose injection

  8. Cell Mediated Immunity (CMI) of 1 dose of AdCLD-CoV19-1 OMI from baseline to 2, 26, 52 weeks post dose injection (Median spot forming units by Interferon-γ (IFN-γ) ELISpot)

    Median spot forming units as measured by Interferon-γ (IFN-γ) ELISpot from baseline to 2, 26, 52 weeks post dose injection induced by 1 dose of AdCLD-CoV19-1 OMI.

    Measured: At 2, 26, 52 weeks post dose injection

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Oct 2022
  2. Study start14 Sep 2022
  3. Primary completion10 Mar 2023
  4. Study completion28 Feb 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
320 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05576623
Sponsor's protocol ID
COVENT-201
Status last verified
Jul 2024
First submitted
10 Oct 2022
Last updated
17 Jul 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing AdCLD-CoV19-1 OMI (Part A) and AdCLD-CoV19-1 OMI (Part B) in people with COVID-19 and Vaccines, run by Cellid Co., Ltd. at 7 sites in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 39 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proportion of immediate adverse events (AE) (time frame: Within 30 minutes post dose injection). The study lists 10 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Jul 2024.

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