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SARS-CoV-2Phase 1/2NCT05903118

A Phase I/II Study to Evaluate a SARS-CoV-2 mRNA Vaccine in Healthy Adults

A Phase 1/2 study testing RBMRNA-176 in people with SARS-CoV-2, run by Argorna Pharmaceuticals Co., LTD 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

The phase I/II study is to evaluate the safety and immunogenicity of SARS-COV-2 mRNA Vaccine (RBMRNA-176) at different doses in healthy subjects aged 18 years and older. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
SARS-CoV-2
What is being tested?
RBMRNA-176
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
480 participants
Where
1 siteChina
Study dates
8 Jan 2022to 19 Jul 2023
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 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Adults aged 18 years and older, Body Mass Index (BMI) is between 18-30, able to provide legal proof of identity
  • Participants voluntarily agreed to participate in the study and signed an informed consent form
  • The subject has ability to understand the research process and is willing and able to comply with all research proposals and other requirements of the study
  • Axillary temperature ≤37.3°C on the day of injection
  • Negative SARS-CoV-2 reverse transcription-polymerase chain reaction (RT-PCR) test, without infective history of severe acute respiratory syndrome (SARS), coronavirus disease 2019 (COVID-19), Middle East Respiratory Syndrome (MERS)
  • Female subjects of childbearing age are not at pregnant period (negative result of pregnancy test) or lactation period
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  • Female subjects of childbearing age had taken effective contraceptive measures 1 month before enrollment
  • Female subjects of childbearing age and male subjects agree to use effective contraception for 12 months from the screening visit to the full injection
  • Female subjects of childbearing age and male subjects agree that do not donate eggs (eggs, oocytes) for assisted reproduction (female subjects of childbearing age) or avoid sperm donation (male subjects) from screening period until 12 months after injection

Who cannot join

  • Chest x - ray is clinically significant abnormal as determined by the investigators
  • The vital signs or examinations are clinically significant abnormal as determined by the investigators prior to randomization
  • A history of severe allergy (including drugs, vaccines, and foods) or to any component of the experimental vaccine, e.g., allergic shock, allergic laryngeal edema, anaphylactoid purpura, dyspnea, and angioedema, etc.
  • Subjects have been diagnosed with a serious disease, congenital malformation or chronic disease (including but not limited to: respiratory disease or chronic bronchitis such as asthma, serious cardiovascular disease, kidney disease, autoimmune disease, thrombocytopenic purpura, thalassemia, malignant tumor, hereditary allergic constitution, etc.) that may interfere with the conduct or completion of the study
  • Diagnosed with diseases may affect immune system function, congenital or acquired immune deficiency or suppression (e.g., tuberculosis, human immunodeficiency virus (HIV)), Hepatitis B, hepatitis C, syphilis infection, uncontrollable autoimmune disease, no spleen or spleen dysfunction
  • Lymph node - related diseases (such as lymphadenitis, lymph node adhesion, lymph node tuberculosis, tumor metastasis, etc.) or skin scars and fistulas at the lymph node site, or lymphadenopathy, tenderness, skin redness and swelling at the lymph node site within 7 days prior to injection
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  • History or family history of convulsions, epilepsy, encephalopathy, psychiatry, or history of narcolepsy
  • Within 3 days prior to injection, an acute illness or attack of a chronic disease, or the use of antipyretic analgesic or anti - allergic drugs
  • Subjects have contraindications to intramuscular injection, such as having been diagnosed with thrombocytopenia, any blood clotting disorder or receiving anticoagulant therapy
  • Long-term use of immunopotentiator or immunosuppressant therapy within 6 months prior to the first dose injection (continuous orally or by injection for more than 14 days).
  • Use of any blood or blood - related products (e.g., blood transfusion, use of human albumin, human immunoglobulin, etc.) within 6 months prior to the first dose injection
  • Any blood lost > 400 mL within 28 days prior to the screening visit (e.g., donate blood or component blood, or injured), or plan to donate blood or component blood between the screening visit and 28 days after the last dose injection
  • Previously received any SARS-CoV-2 vaccine or plan to receive other SARS-CoV-2 vaccines
  • Other vaccines have been administered within 4 weeks prior to the first dose injection or other injection schedule (except for emergency injections such as Rabies vaccine and Tetanus vaccine) between the screening period and 28 days after the injection
  • Any abnormal or permanent body art (such as tattoos) at the site of the injection, which the researchers think to interfere with observing local reactions at the site of the injection
  • Female subjects planning to become pregnant or male subjects' partners planning to become pregnant from screening period to 12 months after whole schedule injection
  • Participating in or planning to participate in other clinical trials (drugs or vaccines) within 3 months prior to participating in this study
  • Other circumstances considered by the investigator as inappropriate to participate in the study

Trial locations and contacts

1 site in 1 country.

China1 site
  • Chengdu Xinhua Hospital affiliated to North Sichuan Medical College

    Chengdu, Sichuan

Other trials in China

About this study

Official title: A Phase I/II, Randomized, Blind, Placebo-Controlled Study to Evaluate the Safety and Immunogenicity of SARS-CoV-2 mRNA Vaccine (RBMRNA-176) in Healthy Adults Aged 18 Years and Older

The phase I/II study is to evaluate the safety and immunogenicity of SARS-COV-2 mRNA Vaccine (RBMRNA-176) at different doses in healthy subjects aged 18 years and older.

Conditions
SARS-CoV-2
Being tested
RBMRNA-176, Placebo

What participants receive

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

  • RBMRNA-176Biological

    Anti-viral RNA vaccine for active immunization against COVID-19 administered as intramuscular injection

  • PlaceboOther

    0.9% sodium chloride (normal saline) injection

Study groups in NCT05903118
Study groupRoleWhat they receive
Participants aged 18 to 59 years.ExperimentalEscalating dose levels
Receives: Biological: RBMRNA-176
Participants aged 60 years and older.ExperimentalEscalating dose levels
Receives: Biological: RBMRNA-176
PlaceboPlacebo comparatorNot described
Receives: Other: Placebo

What is being measured

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

  1. Solicited local and systemic adverse reactions (AR)

    For phase I

    Measured: Within 14 days after each dose

  2. All Adverse Events (AE) related to injection

    For phase I

    Measured: From the first dose to within 28 days after the whole schedule injection

  3. The level of neutralizing antibody against SARS-CoV-2

    For phase II

    Measured: The 28th day after the whole schedule injection

Secondary outcomes (7)
  1. Unsolicited Adverse Events (AE)

    For phase I \& II

    Measured: After the first dose till before the second dose, and within 28 days after the second dose

  2. All serious adverse events (SAE)

    For phase I \& II

    Measured: Within 21 days after the first dose, and within 28 days after the second dose, and 90days, 180 days, 360 days after the whole schedule injection

  3. The level of Immunoglobulin G (IgG) antibody against SARS-CoV-2 S protein

    For phase I \& II

    Measured: The 21st day after the first dose, and the 7th day, 28th day, 90th day, 180th day, 360th day after the whole schedule injection

  4. The level of neutralizing antibody against SARS-CoV-2

    For phase I

    Measured: The 21st day after the first dose, and the 7th day, 28th day, 90th day, 180th day, 360th day after the whole schedule injection

  5. The level of neutralizing antibody against SARS-CoV-2

    For phase II

    Measured: The 21st day after the first dose, and the 7th day, 90th day, 180th day, 360th day after the whole schedule injection

  6. Solicited local and systemic ARs

    For phase II

    Measured: Within 14 days after each dose

  7. All AEs related to injection

    For phase II

    Measured: From the first dose to within 28 days after the whole schedule injection

Timeline

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

  1. First posted15 Jun 2023
  2. Study start8 Jan 2022
  3. Primary completion1 Sep 2022
  4. Study completion19 Jul 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 1/2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
480 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05903118
Sponsor's protocol ID
CP-RBMRNA-001-02
Status last verified
Jan 2024
First submitted
12 Jun 2023
Last updated
10 Jan 2024
Results posted
No
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 RBMRNA-176 in people with SARS-CoV-2, run by Argorna Pharmaceuticals Co., LTD 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 9 inclusion and 18 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 10 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. 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?

Solicited local and systemic adverse reactions (AR) (time frame: Within 14 days after each dose). The study lists 3 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 10 Jan 2024.

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