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COVID-19Phase 4NCT04911790

Safety of an Inactivated SARS-CoV-2 Vaccine for Prevention of COVID-19 in Adults

A Phase 4 study testing Experimental Group in people with COVID-19, run by Sinovac Research and Development 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

This study is a multi-center and open design, phase Ⅳ clinical trial of an inactivated SARS-CoV-2 vaccine (CoronaVac) manufactured by Sinovac Research and Development Co., Ltd.The purpose of this study is to evaluate the safety of the SARS-CoV-2 Inactivated vaccine in population aged 18 years years and older and in… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
COVID-19
What is being tested?
Experimental Group
Could I receive a placebo?
No, everyone receives an active treatment
How many people
131,650 participants
Where
1 siteChina
Study dates
5 Jun 2021to 31 Aug 2023
Phase
Phase 4
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

  • Have not received any COVID-19 vaccine in the past or at least one dose of CoronaVac manufactured by Sinovac Research and Development Co.,Ltd;
  • Population aged 18 years and above;
  • The subjects can understand and voluntarily sign the informed consent form and participate in the follow-up;

Who cannot join

  • History of severe allergy to the vaccine such as acute allergic reaction,angioedema and dyspnea ;
  • Severe neurological disease such as transverse myeliti,Guillain-Barre Syndrome and demyelinating disorders;
  • Acute diseas,acute onset of chronic disease and severe chronic diseases.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Yongping Center for Diseases Control and Prevention

    Dali, Yunnan, 650022

Other trials in China

About this study

Official title: Safety Observation of the Inactivated SARS-CoV-2 Vaccine (Vero Cell) in Population Aged 18 Years and Older: A Multicenter,Open-label Study

This study is a multi-center and open design, phase Ⅳ clinical trial of an inactivated SARS-CoV-2 vaccine (CoronaVac) manufactured by Sinovac Research and Development Co., Ltd.The purpose of this study is to evaluate the safety of the SARS-CoV-2 Inactivated vaccine in population aged 18 years years and older and in people with pre-existing disease to provide reference for improving the immunization strategy of COVID-19 vaccine.

Read the detailed description

This study is a multi-center and open design, phase Ⅳ clinical trial in population aged 18 years years and older. The experimental vaccine will be manufactured by Sinovac Research and Development Co.,Ltd.The study is planned to be carried out in 11 provinces from May 2021 to December 2022, including Liaoning, Heilongjiang, Anhui, Fujian, Jiangxi, Hubei, Guangxi, Chongqing, Guizhou, Yunnan and Gansu. Each province will serve as a research center, and each research center will select the corresponding research site.A total of 121000 subjects will be enrolled with11000 for each research center, including at least 2000 people with pre-existing disease and at least 4000 people in the elderly group (60 years old and above) (including patients with pre-existing disease).And subjects will receive two doses of vaccine on day 0 and day 28.

Conditions
COVID-19
Being tested
Experimental Group
Medical subject headings
COVID-19

What participants receive

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

  • Experimental GroupBiological

    Also called CoronaVac

    SARS-CoV-2 Inactivated Vaccine 600SU inactivated virus in 0·5 mL of aluminiumhydroxide solution per injection

Study groups in NCT04911790
Study groupRoleWhat they receive
Experimental GroupExperimentalParticipant will receive two doses inactivated SARS-CoV-2 vaccine . Vaccine will given by intramuscular injection on day 0 and day 28.
Receives: Biological: Experimental Group

What is being measured

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

  1. Safety index-incidence of adverse reactions

    Incidence rate of adverse reactions within 0~7 days after each dose in all populations.

    Measured: Day 0-7 after each dose vaccination

Secondary outcomes (3)
  1. Safety index-incidence of adverse reactions

    Incidence of adverse reactions within 0~7 days after each dose in the population with pre-existing disease.

    Measured: Day 0-7 after each dose vaccination

  2. Safety index-incidence of adverse reactions

    Incidence rate of adverse reactions within 0~28 days after each dose in all populations.

    Measured: Day 0-28 after each dose vaccination

  3. Safety index-incidence of adverse reactions

    Incidence of adverse reactions within 0~28 days after each dose in the population with pre-existing disease.

    Measured: Day 0-28 after each dose vaccination

Timeline

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

  1. First posted3 Jun 2021
  2. Study start5 Jun 2021
  3. Primary completion2 Jan 2023
  4. Study completion31 Aug 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 4
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
131,650 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04911790
Sponsor's protocol ID
PRO-nCOV-MA4002
Status last verified
May 2021
First submitted
2 Jun 2021
Last updated
25 Sep 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Yang H, Li Z, Zhang R, Guo S, Wang B, Fang X, Zhang D, Zhang X, Tong Y, Wang Q, Deng Q, Sun Z, Liu X, Gao Y. Safety of primary immunization using inactivated SARS-CoV-2 vaccine (CoronaVac(R)) among population aged 3 years and older in a large-scale use: A multi-center open-label study in China. Vaccine. 2023 Feb 10;41(7):1354-1361. doi: 10.1016/j.vaccine.2023.01.020. Epub 2023 Jan 13.

    PubMed 36658045

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Experimental Group in people with COVID-19, run by Sinovac Research and Development 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 3 inclusion and 3 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 25 Sep 2023. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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?

Safety index-incidence of adverse reactions (time frame: Day 0-7 after each dose vaccination). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04911790, which also lists 1 linked publication.

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 25 Sep 2023.

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