Clinical Trial of Inactivated SARS-CoV-2 Vaccine for Prevention of COVID-19 in Healthy Adults

September 22, 2021 updated by: Sinovac Research and Development Co., Ltd.

An Open-label,Phase Ⅳ Clinical Trial to Evaluate the Immunogenicity and Safety of the Inactivated SARS-CoV-2 Vaccine (Vero Cell) in Healthy Population Aged From 18 to 59 Years.

This study is an open-label phase Ⅳ clinical trial of the inactivated SARS-CoV-2 vaccine(CoronaVac)manufactured by Sinovac Research & Development Co., Ltd. The purpose of this study is to evaluate the immunogenicity and safety of the Inactivated SARS-CoV-2 Vaccine (Vero Cell) in Healthy Population Aged From 18 to 59 Years.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study is an open-label phase Ⅳ clinical trial in healthy adult aged 18-59 years. The experimental vaccine was manufactured by Sinovac Research and Development Co.,Ltd.. A total of 1400 subjects will be enrolled,the safety and immunogenicity of booster immunization were evaluated in 400 subjects (group A) who received two doses of primary immunization at an interval of 21 to 31 days. And the safety of booster immunization was evaluated in the extended safety group (group B), which included 1000 subjects.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
1400

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
      • Beijing, China, 100013
        • Recruiting
        • Beijing Centers for Diseases Control and Prevention
        • Contact:
        • Principal Investigator:
          • Jiang Wu

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 59 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Healthy adults aged 18-59;
  • Have been received two doses of inactivated SARS-CoV-2 vaccine(CoronaVac)manufactured by Sinovac Research & Development Co., Ltd at an interval of 21 to 31 days for group A.Have been vaccination two doses of inactivated SARS-CoV-2 vaccine(CoronaVac)manufactured by Sinovac Research & Development Co., Ltd for group B;
  • The subjects can understand and voluntarily sign the informed consent form;
  • Proven legal identity.

Exclusion Criteria:

  • History of SARS-CoV-2 infection;
  • Any serious adverse reactions that are causally related to vaccination during the primary immunization of the previous inactivated SARS-CoV-2 vaccine;
  • Severe allergic reactions after primary immunization (including urticaria/rash within 30 minutes after vaccination);
  • Autoimmune disease or immunodeficiency / immunosuppression;
  • Severe chronic diseases, severe cardiovascular diseases, hypertension and diabetes that cannot be controlled by drugs, liver or kidney diseases, malignant tumors, etc;
  • Severe neurological disease (epilepsy, convulsions or convulsions) or mental illness;
  • Immunosuppressive therapy, cytotoxic therapy, inhaled corticosteroids (excluding allergic rhinitis corticosteroid spray therapy, acute noncomplicated dermatitis superficial corticosteroid therapy) within 6 months before primary immunization and before booster immunization;
  • Already pregnant or are breastfeeding, planning to get pregnant (according to subjects' self-report and urine pregnancy test results)
  • Receipt of attenuated live vaccines within 14 days prior to booster vaccination;
  • Receipt of inactivated or subunit vaccines within 7 days prior to booster vaccination;
  • Acute diseases or acute exacerbation of chronic diseases within 7 days prior to booster vaccination;
  • Axillary temperature >37.0°C prior to booster vaccination;
  • According to the investigator's judgment, the subject has any other factors that are not suitable for participating in the clinical trial

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Experimental Group
200 subjects in group A1 will receive one dose of booster immunization 3 months after the completion of the second dose of primary immunization of the SARS-CoV-2 Inactivated vaccine.
Biological: SARS-CoV-2 Inactivated Vaccine
600SU inactivated virus in 0·5 mL of aluminiumhydroxide solution per injection
Other Names:
  • CoronaVac
Experimental: Control Group
200 subjects in group A2 will receive one dose of booster immunization 5 months after the completion of the second dose of primary immunization of the SARS-CoV-2 Inactivated vaccine.
Biological: The SARS-CoV-2 Inactivated Vaccine
600SU inactivated virus in 0·5 mL of aluminiumhydroxide solution per injection
Other Names:
  • CoronaVac
Experimental: Safety group
1000 subjects in group B will be enrolled and receive 1 dose of booster immunization more than 3 months after the completion of the second dose of primary immunization of the SARS-CoV-2 Inactivated vaccine
Biological: SARS-CoV-2 Inactivated Vaccine
600SU inactivated virus in 0·5 mL of aluminiumhydroxide solution per injection
Other Names:
  • CoronaVac

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Geometric mean titer(GMT) of neutralizing antibody to live SARS-CoV-2
Time Frame: 1 month after booster immunization
GMT of the neutralizing antibody to live SARS-CoV-2 within 1month after booster immunization of the Inactivated SARS-CoV-2 vaccine.
1 month after booster immunization
Safety index-incidence of adverse reactions
Time Frame: 1 month after booster immunization
Incidence rate of adverse reactions within 1 month after booster immunization of the Inactivated SARS-CoV-2 vaccine
1 month after booster immunization

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Safety index-incidence of serious adverse events
Time Frame: 1 month after booster immunization
Incidence rate of serious adverse events within 1 month after booster immunization of the Inactivated SARS-CoV-2 vaccine
1 month after booster immunization
Seroconversion rate,seropositivity rate and GMI of the neutralizing antibody to SARS-CoV-2
Time Frame: 1 month after booster immunization
Seroconversion rate,seropositivity rate and GMI of the neutralizing antibody to SARS-CoV-2 within 1 month after booster immunization of the Inactivated SARS-CoV-2 vaccine
1 month after booster immunization
Seropositivity rate of IgG antibody
Time Frame: 1 month after booster immunization
Seropositivity rate of IgG antibody within 1 month after booster immunization of the Inactivated SARS-CoV-2 vaccine
1 month after booster immunization

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Sinovac Research and Development Co., Ltd.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 19, 2021

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 19, 2021

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 19, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 13, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 13, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 14, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 24, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 22, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2021

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PRO-nCOV-4003

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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