Clinical Study of the Third Dose Immunization Schedule of COVID-19 Inactivated Vaccine, (Vero Cells) Based on Different COVID-19 Inactivated Vaccine in Adults Aged 18 Years and Above

February 14, 2022 updated by: Jingsi Yang, Cancer Institute and Hospital, Chinese Academy of Medical Sciences

Clinical Study of the Third Dose Immunization Schedule of COVID-19 Inactivated Vaccine, (Vero Cells) Based on the Basic Immunity of Different COVID-19 Inactivated Vaccine in Adults Aged 18 Years and Above

To evaluate the immunogenicity and safety of the third dose SARS-CoV-2 Vaccine, Inactivated (Vero Cell) in adults aged 18 years and above, who inoculated the third dose after 3, 4, 5, or 6 months since finished two doses schedule of CoronaVac or BBIBP-CorV.

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.

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.
432

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 3

Contacts and Locations

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

Study Locations

  • China
    • Yunnan
      • Anning, Yunnan, China, 650302
        • Recruiting
        • Anning First People's Hospital
        • Contact:
          • Mingxuan Zhao, PhD
          • Phone Number: 0871-68639075

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Axillary temperature ≤37.0 ℃.
  2. aged 18 years and above, after 3, 4, 5, or 6 months since finished two doses schedule of CoronaVac or BBIBP-CorV, or one does CoronaVac and one does BBIBP-CorV.
  3. Proven legal identity, could come each visit.
  4. Participants should understand the contents of the informed consent form, the vaccine in this trial, voluntarily sign the informed consent form.

Exclusion Criteria:

  1. Persons with a clear history of SARS-CoV-2 infection.
  2. Using blood products after basic immunization or receiving immunosuppressive therapy.
  3. Participants who have a positive pregnancy test, or are breastfeeding, or plan to become pregnant, or plan to donate sperm or eggs from the screening to 6 months after vaccination.
  4. Allergic to the active substance in the vaccine, any inactive substance or substance used in the preparation process (aluminum hydroxide, glycine);
  5. History of abnormal clinical manifestations and serious diseases to be excluded, including but not limited to nervous system, cardiovascular system, blood and lymphatic system, immune system, kidney, liver, gastrointestinal tract, respiratory system, metabolism, bones and other system diseases, and a history of malignant tumors.
  6. Diseases beyond drug control, such as high blood pressure, diabetes, asthma.
  7. Those who developed acute disease within 2 weeks, or had symptoms of fever or upper respiratory tract infection within 7 days.
  8. Immunization with any vaccine within 14 days.
  9. Any other situations judged by investigators as not suitable for participating in this study.

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: Non-Randomized
  • Interventional Model: Single Group 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: 3 months after two doses
group 1：the third does was given 3 months after two doses CoronaVac group 2：the third does was given 3 months after two doses BBIBP-CorV group 3：the third does was given 3 months after one does CoronaVac and one does BBIBP-CorV
Biological: SARS-CoV-2 Vaccine, Inactivated (Vero Cell)
the third dose immunization schedule of SARS-CoV-2 inactivated vaccine
Experimental: 4 months after two doses
group 1：the third does was given 4 months after two doses CoronaVac group 2：the third does was given 4 months after two doses BBIBP-CorV group 3：the third does was given 4 months after one does CoronaVac and one does BBIBP-CorV
Biological: SARS-CoV-2 Vaccine, Inactivated (Vero Cell)
the third dose immunization schedule of SARS-CoV-2 inactivated vaccine
Experimental: 5 months after two doses
group 1：the third does was given 5 months after two doses CoronaVac group 2：the third does was given 5 months after two doses BBIBP-CorV group 3：the third does was given 5 months after one does CoronaVac and one does BBIBP-CorV
Biological: SARS-CoV-2 Vaccine, Inactivated (Vero Cell)
the third dose immunization schedule of SARS-CoV-2 inactivated vaccine
Experimental: 6 months after two doses
group 1：the third does was given 6 months after two doses CoronaVac group 2：the third does was given 6 months after two doses BBIBP-CorV group 3：the third does was given 6 months after one does CoronaVac and one does BBIBP-CorV
Biological: SARS-CoV-2 Vaccine, Inactivated (Vero Cell)
the third dose immunization schedule of SARS-CoV-2 inactivated vaccine

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
Adverse reactions/events rate
Time Frame: 7 days after vaccination
Occurence of adverse reactions/events after vaccination
7 days after vaccination
Adverse reactions/events rate
Time Frame: 28 days after vaccination
Occurence of adverse reactions/events after vaccination
28 days after vaccination
Seroconversion rate of Neutralizing and IgG antibodies against SARS-CoV-2
Time Frame: From 0 days to 6 month after the third dose
Seroconversion rate of neutralizing antibodies and IgG against SARS-CoV-2 in serum for the third dose immunization schedule
From 0 days to 6 month after the third dose
SARS-CoV-2 specific memory B and T cell response
Time Frame: From 0 days to 6 month after the third dose
SARS-CoV-2 specific memory B and T cell response for the third dose immunization schedule
From 0 days to 6 month after the third dose

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.
Cancer Institute and Hospital, Chinese Academy of Medical Sciences

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Yunnan Center for Disease Control and Prevention

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Yan Zheng, Yunnan Center For Disease Control and Prevention

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.
December 18, 2021

Primary Completion (Anticipated)

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 30, 2022

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.
October 30, 2022

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).
December 15, 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.
December 17, 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.
December 20, 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.
March 2, 2022

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.
February 14, 2022

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.
February 1, 2022

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.
  • 20211101

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

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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