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Vaccine ReactionPhase 3NCT05546502

Safety and Immunogenicity of SARS-CoV-2 Protein Subunit Recombinant Vaccine in Healthy Children

A Phase 3 study testing SARS-CoV-2 Protein Subunit Recombinant Vaccine and Active Comparator in people with Vaccine Reaction and Vaccine Adverse Reaction, run by PT Bio Farma at 10 sites in Indonesia.

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

A Phase III, Observer-blind, randomized, active-controlled prospective intervention study Read more about this study

Who is it for?
Ages 12 to 17 yearsHealthy volunteers can take part
Conditions the study is for
Vaccine Reaction, Vaccine Adverse Reaction
What is being tested?
SARS-CoV-2 Protein Subunit Recombinant Vaccine and Active Comparator
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,050 participants
Where
10 sitesIndonesia
Study dates
9 Oct 2022to 31 Jan 2024
Phase
Phase 3
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 12 to 17 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Clinically healthy children aged 12-17 years.
  • Parent and/or legal guardian has been informed properly regarding the study and signed the informed consent form (and assent for subjects aged 12-17 years).
  • Parent and/or legal guardian will commit to comply with the instructions of the investigator and the schedule of the trial.

Who cannot join

  • Subjects concomitantly enrolled or scheduled to be enrolled in another trial.
  • History of vaccination with any COVID-19 vaccine (based on anamnesis).
  • Subjects who have history of COVID-19 in the last 3 months (based on anamnesis).
  • Evolving mild, moderate or severe illness, especially infectious disease or fever (body temperature ≥37.5℃, measured with infrared thermometer/thermal gun).
  • History of asthma, history of allergy to vaccines or vaccine ingredients, and severe adverse reactions to vaccines, such as urticaria, dyspnea, and angioneurotic edema.
  • History of uncontrolled coagulopathy or blood disorders contraindicating intramuscular injection.
Show all 12Show fewer
  • Patients with serious chronic diseases (serious cardiovascular diseases, uncontrolled hypertension and diabetes, liver and kidney diseases, malignant tumors, etc) which according to the investigator might interfere with the assessment of the trial objectives.
  • Subjects who have any history of confirmed or suspected immunosuppressive or immunodeficient state, or received in the previous 4 weeks a treatment likely to alter the immune response (intravenous immunoglobulins, blood-derived products or long-term corticosteroid therapy (> 2 weeks)).
  • Subjects who have history of uncontrolled epilepsy or other progressive neurological disorders, such as Guillain-Barre Syndrome.
  • Subjects receive any vaccination (other than COVID-19 vaccine) within 1 month before and after IP immunization.
  • Female who are pregnant or planning to become pregnant during the study period (judged by self-report of subjects and urine pregnancy test results).
  • 11. Subjects plan to move from the study area before the end of study period.

Trial locations and contacts

10 sites in 1 country.

10 sites in 1 country

Indonesia10 sites
  • Abdoel Moeloek Hospital

    Bandar Lampung, Lampung

  • RSUD Hj. Anna Lasmanah

    Banjarnegara, Central Java

  • Rumpin Primary Health Care

    Bogor, West Java

  • Bali Mandara Hospital

    Denpasar, Bali

  • Universitas Udayana Hospital

    Denpasar, Bali

  • Duren Seribu Primary Health Care

    Depok, West Java

  • Pasir Putih Primary Health Care

    Depok, West Java

  • Universitas Mataram Hospital

    Mataram, West Nusa Tenggara

  • M Djamil Hospital

    Padang, West Sumatra

  • RS Universitas Andalas

    Padang, West Sumatra

Other trials in Indonesia

About this study

Official title: A Phase III, Observer-Blind, Randomized, Controlled Study of the Safety and Immunogenicity of SARS-CoV-2 Protein Subunit Recombinant Vaccine in Healthy Children Aged 12-17 Years in Indonesia

A Phase III, Observer-blind, randomized, active-controlled prospective intervention study

Read the detailed description

This trial is randomized, prospective intervention study. A total of 1,050 subjects aged 12-17 years (COVID-19 vaccine naive) who are willing to participate in the study by signing the consent form, will be involved in this trial.

The subjects will be divided into twostudy subsets, namely Main Study and Exploratory Study.

Main Study for immunogenicity and safety evaluation.

Exploratory Study for cellular immunity evaluation,

Being tested
SARS-CoV-2 Protein Subunit Recombinant Vaccine, Active Comparator

What participants receive

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

  • SARS-CoV-2 Protein Subunit Recombinant VaccineBiological

    SARS-CoV-2 RBD subunit recombinant protein, manufactured by PT. Bio Farma

  • Active ComparatorBiological

    Covovax

Study groups in NCT05546502
Study groupRoleWhat they receive
COVID-19 Protein Subunit Recombinant VaccineExperimental2 doses of COVID-19 Protein Subunit Recombinant Vaccine administered with 28 days interval (0.5 mL per dose)
Receives: Biological: SARS-CoV-2 Protein Subunit Recombinant Vaccine
Active ComparatorActive comparator2 doses of Covovax® - administered with 28 days interval (0.5 mL per dose)
Receives: Biological: Active Comparator

What is being measured

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

  1. To evaluate immunogenic non-inferiority immune response of SARS-CoV-2 neutralizing antibody of Bio Farma vaccine compared to vaccine control at 14 days after primary series

    Geometric Mean Titer (GMT) and GMT ratio of neutralizing antibody to the SARS-CoV-2, measured by neutralization assay (against omicron variant) at 14 days after primary series

    Measured: 14 days after primary series

Secondary outcomes (6)
  1. To evaluate SARS-CoV-2 (RBD)-binding IgG antibody titer before and 14 days after primary series of Bio Farma vaccine.

    Seroconversion rate and Seropositive rate of neutralizing antibody at baseline and 14 days after primary series vaccination.

    Measured: 14 days after primary series

  2. To evaluate safety of SARS-CoV-2 Protein Subunit Recombinant Vaccine (Bio Farma).

    Local reactions and systemic events

    Measured: 28 days after each dose

  3. To evaluate safety of SARS-CoV-2 Protein Subunit Recombinant Vaccine (Bio Farma).

    Serious Adverse Event

    Measured: 12 months after primary series

  4. To compare safety between SARS-CoV-2 protein subunit recombinant vaccine (Bio Farma) and control group.

    local reactions, systemic events

    Measured: 28 days after each dose

  5. To compare immunogenicity between SARS-CoV-2 protein subunit recombinant vaccine (Bio Farma) and control group.

    SARS-CoV-2 (RBD)-binding IgG antibody titer, neutralizing antibody

    Measured: 28 days after each dose

  6. To evaluate antibody persistence 3, 6 and 12 months after primary series

    SARS-CoV-2 (RBD)-binding IgG antibody titer, neutralizing antibody

    Measured: 3, 6 and 12 months after primary series

Timeline

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

  1. First posted19 Sep 2022
  2. Study start9 Oct 2022
  3. Primary completion31 Dec 2023
  4. Study completion31 Jan 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 3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Model description
Vaccine candidate and active comparator are masking
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
1,050 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05546502
Sponsor's protocol ID
CoV2-Children-0322
Status last verified
Jun 2025
First submitted
4 Sep 2022
Last updated
3 Jun 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing SARS-CoV-2 Protein Subunit Recombinant Vaccine and Active Comparator in people with Vaccine Reaction and Vaccine Adverse Reaction, run by PT Bio Farma at 10 sites in Indonesia.

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 3 inclusion and 12 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 3 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 10 sites in Indonesia. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

To evaluate immunogenic non-inferiority immune response of SARS-CoV-2 neutralizing antibody of Bio Farma vaccine compared to vaccine control at 14 days after primary series (time frame: 14 days after primary series). 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 3 Jun 2025.

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