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COVID-19NCT05907044

A Study to Investigate the Safety, Immunogenicity of Bivalent mRNA Vaccine RQ3027 and RQ3025 as a Booster Dose in Healthy Adults

A study testing RQ3013, RQ3025 and RQ3027 in people with COVID-19, run by Affiliated Hospital of Yunnan University at 1 site in China.

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

This clinical trial aimed to gather safety and immunogenicity data in COVID-19 vaccine-experienced healthy adults. The main questions it aims to answer are: The neutralizing antibodies levels of bivalent mRNA vaccines RQ3027(Alpha/Beta+Omicron XBB.1.5) and RQ3025(Alpha/Beta+Omicron BA.2/4/5) and monovalent mRNA… Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
COVID-19
What is being tested?
RQ3013, RQ3025 and RQ3027
Could I receive a placebo?
No, everyone receives an active treatment
How many people
376 participants
Where
1 siteChina
Study dates
8 May 2023to 23 Nov 2023
Phase
Interventional
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 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy participants who are determined by medical history, physical examination, and clinical judgment of the investigator to be eligible for inclusion in the study.
  • Participants 18 through 55 years of ages.
  • Participants who have received at least 3 doses COVID-19 vaccine.
  • Participants with the last prior dose being 90 or more days before Visit 1(Day 0) or recovered from COVID-19 at least 28 days.
  • Participants able to comply with all scheduled visits, laboratory tests and investigator's instruction.

Who cannot join

  • Women who are pregnant or breastfeeding.
  • Enrolling in or planning to participate other interventional clinical study.
  • Has received systemic immunoglobulins or blood products within 3 months prior to the day of screening.
  • History of anaphylaxis, urticaria, or other significant adverse reaction requiring medical intervention after receipt of a vaccine.
  • Bleeding disorder considered a contraindication to intramuscular injection or phlebotomy.
  • Continued using anticoagulants such as coumarin and related anticoagulants (i.e., warfarin) or oral anticoagulants (i.e., apixaban, rivaroxaban, dabigatran, and edoxaban).
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  • Having coronary heart disease, hypertension, diabetes, chronic respiratory diseases, tumors and poorly controlled.
  • Immunocompromised or having immunosuppressive therapy.
  • Suspected or confirmed alcohol/drug dependence.
  • Investigator decide unsuitable factors for participating in clinical trials in the investigator's judgment

Trial locations and contacts

1 site in 1 country.

China1 site
  • The Affiliated Hospital of Yunnan University

    Kunming, Yunnan, 650091

Other trials in China

About this study

Official title: An Interventional, Randomized, Parallel Controlled, Investigator Initiated Study to Investigate the Safety, Immunogenicity of Bivalent RQ3027 and RQ3025 mRNA Vaccine as a Booster Dose in 3 Doses COVID-19 Vaccine-Experienced Healthy Adults

This clinical trial aimed to gather safety and immunogenicity data in COVID-19 vaccine-experienced healthy adults. The main questions it aims to answer are:

  • The neutralizing antibodies levels of bivalent mRNA vaccines RQ3027(Alpha/Beta+Omicron XBB.1.5) and RQ3025(Alpha/Beta+Omicron BA.2/4/5) and monovalent mRNA vaccine RQ3013 against the current SARS-CoV-2 circulating variant.
  • The safety profile of RQ3027 and RQ3025 given as a second booster dose to COVID-19 vaccine-experienced participants 18 through 55 years of age.
  • Explore the protective efficacy by documenting confirmed COVID-19 cases after vaccination.
Conditions
COVID-19
Being tested
RQ3013, RQ3025, RQ3027
Keywords
mRNA vaccine, SARS-CoV-2
Medical subject headings
COVID-19

What participants receive

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

  • RQ3013Biological

    0.15mL/dose containing mRNA 30μg

  • RQ3025Biological

    0.15mL/dose containing mRNA 30μg

  • RQ3027Biological

    0.15mL/dose containing mRNA 30μg

Study groups in NCT05907044
Study groupRoleWhat they receive
RQ3013Active comparatorC-3013B-202211005, Alpha/Beta, mRNA 30μg dose
Receives: Biological: RQ3013
RQ3025ExperimentalINDA-3025TB-20221002, Alpha/Beta + Omicron BA.2/4/5, mRNA 30μg dose
Receives: Biological: RQ3025
RQ3027ExperimentalIND-3027TB-202304001, Alpha/Beta + Omicron XBB.1.5, mRNA 30μg dose
Receives: Biological: RQ3027

What is being measured

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

  1. Geometric Mean Titer(GMT) of SARS-Cov-2 Antibodies Against Prototype, Alpha, Beta, BA.5, BF.7, BQ.1.1, XBB.1.5

    Measured: Day 14

  2. Number of Participants with Solicited Local and Systemic Averse Events(AEs)

    Measured: Up to Day 14( 7 days after vaccination)

Secondary outcomes (4)
  1. Geometric Mean Titer(GMT) of SARS-Cov-2 Antibodies Against Prototype, Alpha, Beta, BA.5, BF.7, BQ.1.1, XBB.1.5

    Measured: Day 0, Day 7, Day 28, Day 90, Day 180

  2. Number of Participants with Unsolicited Local and Systemic Averse Events(AEs)

    Measured: Up to Day 180( 28 days after vaccination)

  3. Number of Participants with Serious AEs(SAEs)

    Measured: Up to Day 180

  4. The proportion of T cell subsets which secreted by S protein-specific cytokines (IFN-γ, IL-4)

    Measured: Day 7, Day 28, Day 90, Day 180

Timeline

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

  1. First posted18 Jun 2023
  2. Study start8 May 2023
  3. Primary completion10 Jun 2023
  4. Study completion23 Nov 2023

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 N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
376 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05907044
Sponsor's protocol ID
YNUVC-2022003
Status last verified
Jan 2024
First submitted
8 Jun 2023
Last updated
24 Jan 2024
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing RQ3013, RQ3025 and RQ3027 in people with COVID-19, run by Affiliated Hospital of Yunnan University at 1 site in China.

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 5 inclusion and 10 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 24 Jan 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. 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.

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?

Geometric Mean Titer(GMT) of SARS-Cov-2 Antibodies Against Prototype, Alpha, Beta, BA.5, BF.7, BQ.1.1, XBB.1.5 (time frame: Day 14). The study lists 2 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 24 Jan 2024.

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