- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05033847
Clinical Trial on Sequential Immunization of Recombinant COVID-19 Vaccine (CHO Cells) and Inactivated COVID-19 Vaccine (Vero Cells) in Population Aged 18 Years and Above
January 31, 2023 updated by: National Vaccine and Serum Institute, China
This is randomized, blinded and controlled design.
Among the randomly selected subjects who have been vaccinated with two doses of Inactivated COVID-19 vaccine (Vero cell), based on a step-wise approach, the subjects will receive one dose of recombinant COVID-19 vaccine sequentially at different shedules of 1-3 months, 3-6 months and ≥ 6 months after two doses of vaccination, and the subjects vaccinated at different schedules will be randomly assigned to different sequential immunization groups.
At the same time, each sequential immunization group will be matched with a control group with the inactivated COVID-19 vaccine (vero cells) as the booster dose.
Study Overview
Status
Active, not recruiting
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
1800
Phase
- Phase 2
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
-
-
Abu Dhab
-
Seha, Abu Dhab, United Arab Emirates, 519000
- Sheikh Khalifa Medical City
-
-
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
Ages Eligible for Study
18 years and older (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Age range: populations aged 18 years and above;
- Judged by the investigator that the health condition is well after inquiry and physical examination;
- Vaccinated with 2 doses of CNBG inactivated COVID-19 vaccine according to the product insert;
- Female subjects who are not nursing or pregnant at the time of enrolment (negative urine pregnancy test) and have no family planning within the first 6 months after enrolment. Effective contraceptive measures have been taken within 2 weeks before inclusion.
- During the whole follow-up period of the study, be able and willing to complete the whole prescribed study plan; Self has ability to understand the study procedures, the informed consent & voluntarily sign an informed consent form and is able to comply with the requirements of the clinical study protocol.
Exclusion Criteria:
- Confirmed cases, suspected cases or asymptomatic cases of COVID-19;
- With a history of SARS and MERS infection (self-report, on-site inquiry);
- Has vaccinated with any vaccine other than one or more doses of CNBG inactivated COVID-19 vaccine;
- Axillary temperature ≥ 37.3 ℃ (forehead temperature ≥ 37.8 ℃);
- Previous severe allergic reactions to vaccination (such as acute allergic reactions, urticaria, dyspnea, angioneurotic edema or abdominal pain) or allergy to known components of recombinant COVID-19 vaccine;
- Allergic to any component of the study vaccine (e.g. aluminum, histidine, etc.)
- Known or suspected diseases include:Severe respiratory diseases, severe liver and kidney diseases, hypertension (systolic blood pressure ≥ 150 mmHg, diastolic blood pressure ≥ 90 mmHg), diabetic complications, malignant tumors, various acute diseases or acute attacks of chronic diseases;
- Has been diagnosed with congenital or acquired immunodeficiency, HIV infection, lymphoma, leukemia or other autoimmune diseases;
- Has a history of convulsions, epilepsy, encephalopathy,long term history of alcohol and drug abuse, history of thyroidectomy, infectious diseasesor mental illness or family history(lineal);
- With Congenital malformation or developmental disorder, genetic defect, severe malnutrition, etc.;
- Has a history of coagulation dysfunction (e.g. coagulation factors deficiency and coagulation diseases);
- Absence of spleen or splenectomy, functional absence of spleen caused by any condition
- Anti -TB (TB) treatment is under way.
- Patients receiving immunoenhancement or inhibitor therapy within 3 months (continuous oral or IV administration for more than 14 days);
- Received other vaccines within 14 days before vaccination;
- Received blood products before within 3 months before vaccination;
- Received other investigational drugs within 6 months before vaccination;
- Plan to move before the end of the study or leave the local area for a long time during the scheduled study visit
- Other circumstances judged by investigators that are not suitable for this 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
- Masking: DOUBLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Subject last vaccination time is within 30-90 days
Subject have been vaccinated with two doses of Inactivated COVID-19 vaccine (Vero cell).The last vaccination time is within 30-90 days
|
Intramuscular injection of Recombinant COVID-19 Vaccine (CHO cell) in the deltoid muscle of the upper arm
Intramuscular injection of Recombinant COVID-19 vaccine (Vero cells) in the deltoid muscle of the upper arm
|
EXPERIMENTAL: Subject last vaccination time is within 91-180 days
Subject have been vaccinated with two doses of Inactivated COVID-19 vaccine (Vero cell).The last vaccination time is within 91-180 days
|
Intramuscular injection of Recombinant COVID-19 Vaccine (CHO cell) in the deltoid muscle of the upper arm
Intramuscular injection of Recombinant COVID-19 vaccine (Vero cells) in the deltoid muscle of the upper arm
|
EXPERIMENTAL: Subject last vaccination time more than 181 days
Subject have been vaccinated with two doses of Inactivated COVID-19 vaccine (Vero cell).The last vaccination time more than 181 days
|
Intramuscular injection of Recombinant COVID-19 Vaccine (CHO cell) in the deltoid muscle of the upper arm
Intramuscular injection of Recombinant COVID-19 vaccine (Vero cells) in the deltoid muscle of the upper arm
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
GMT of anti- SARS-CoV-2 neutralizing antibody
Time Frame: 14th day after vaccination
|
14th day after vaccination
|
GMT of anti- SARS-CoV-2 neutralizing antibody
Time Frame: 28th day after vaccination
|
28th day after vaccination
|
4-fold rise of anti- SARS-CoV-2 neutralizing antibody
Time Frame: 14th day after vaccination
|
14th day after vaccination
|
4-fold rise of anti- SARS-CoV-2 neutralizing antibody
Time Frame: 28th day after vaccination
|
28th day after vaccination
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The incidence and serverity of any adverse reactions
Time Frame: within 30 minutes after vaccination
|
within 30 minutes after vaccination
|
The incidence and serverity of solicited adverse events
Time Frame: within 30 minutes after vaccination
|
within 30 minutes after vaccination
|
The incidence and serverity of solicited adverse events
Time Frame: within 8-30 days after vaccination
|
within 8-30 days after vaccination
|
The incidence of AESI observed
Time Frame: after vaccination and up to 6 months after full course of immunization
|
after vaccination and up to 6 months after full course of immunization
|
Proportion of neutralizing antibody titer ≥ 1: 16, ≥ 1: 32 and ≥ 1: 64
Time Frame: before vaccination
|
before vaccination
|
4-fold rise of anti- SARS-CoV-2 neutralizing antibody
Time Frame: 28th day after vaccination
|
28th day after vaccination
|
GMT of anti- SARS-CoV-2 neutralizing antibody
Time Frame: before vaccination
|
before vaccination
|
GMT of anti-SARS-CoV-2 IgG antibody
Time Frame: 28th day after vaccination
|
28th day after vaccination
|
4-fold rise of anti- SARS-CoV-2 neutralizing antibody
Time Frame: before vaccination
|
before vaccination
|
GMI of anti-SARS-CoV-2 IgG antibody
Time Frame: before vaccination
|
before vaccination
|
GMI of anti-SARS-CoV-2 IgG antibody
Time Frame: 28th day after vaccination
|
28th day after vaccination
|
Proportion of neutralizing antibody titer ≥ 1: 16, ≥ 1: 32 and ≥ 1: 64
Time Frame: 28th day after vaccination
|
28th day after vaccination
|
The incidence and severity of adverse reactions
Time Frame: within 0-7 days after vaccination
|
within 0-7 days after vaccination
|
The incidence and serverity of solicited adverse events
Time Frame: within 0-7 days after vaccination
|
within 0-7 days after vaccination
|
The incidence and severity of unsolicited adverse reactions
Time Frame: within 8-30 days after vaccination
|
within 8-30 days after vaccination
|
The incidence of SAE observed
Time Frame: after vaccination and up to 6 months after full course of immunization
|
after vaccination and up to 6 months after full course of immunization
|
Other Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The vaccine efficay of recombinant COVID-19 vaccine (CHO cells) against COVID-19, severe cases and deaths
Time Frame: 14th day after vaccination
|
14th day after vaccination
|
Anti-SARS-CoV-2 neutralizing antibody
Time Frame: 3th month, 6th month, 9th month and 12th month after full course of immunization
|
3th month, 6th month, 9th month and 12th month after full course of immunization
|
Anti-SARS-CoV-2 GMT of IgG antibody
Time Frame: 3th month, 6th month, 9th month and 12th month after full course of immunization
|
3th month, 6th month, 9th month and 12th month after full course of immunization
|
Proportion of neutralizing antibody titer ≥ 1: 16, ≥ 1: 32 and ≥ 1: 64
Time Frame: 3th month, 6th month, 9th month and 12th month after full course of immunization
|
3th month, 6th month, 9th month and 12th month after full course of immunization
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
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)
September 12, 2021
Primary Completion (ANTICIPATED)
November 1, 2023
Study Completion (ANTICIPATED)
January 1, 2024
Study Registration Dates
First Submitted
August 30, 2021
First Submitted That Met QC Criteria
September 1, 2021
First Posted (ACTUAL)
September 5, 2021
Study Record Updates
Last Update Posted (ACTUAL)
February 2, 2023
Last Update Submitted That Met QC Criteria
January 31, 2023
Last Verified
January 1, 2023
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CNBG 2021001
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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