ClinicalTrials.gg
CompletedNCT04510207COVID-19Updated Jun 18, 2023

A Study to Evaluate The Efficacy, Safety and Immunogenicity of Inactivated SARS-CoV-2 Vaccines (Vero Cell) in Healthy Population Aged 18 Years Old and Above

A Phase 3 interventional study of Inactivated SARS-CoV-2 Vaccine (Vero cell) and Inactivated SARS-CoV-2 Vaccine (Vero cell) in COVID-19, sponsored by China National Biotec Group Company Limited. Completed at 6 sites in 4 countries. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-06-18.

Sponsored by China National Biotec Group Company Limited (part of Sinopharm) · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
44,101
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a multicenter, randomized, double blind, parallel placebo controlled, phase 3 clinical trial to evaluate the protective efficacy, safety and immunogenicity of inactivated SARS-CoV-2 vaccines in healthy population 18 years old and above.

Read the detailed description

This is a multicenter, randomized, double-blind, placebo-controlled study to evaluate the protective efficacy, safety and immunogenicity of inactivated SARS-CoV-2 vaccines in healthy population 18 years old and above. The participants were randomized into three groups of investigational vaccine 1, investigational vaccine 2 and placebo in a 1:1:1 ratio.2 doses of the investigational vaccine or placebo are inoculated into the deltoid muscle of the either arm according to the vaccination schedule of D0 \& D21 (+7 days).According to the immune durability results in Phase I/II study, and cross-neutralization assay results, a third dose (booster dose) generates a better immune response and is estimated to offer better protection, therefore, a booster dose will be given after 3 months

02

Conditions studied

  • COVID-19

Keywords

  • SARS-CoV-2
  • SARS-CoV-2 Vaccine
  • Coronavirus
03

In context

COVID-19

7,990 studies on the registry are indexed under COVID-19; 466 are open to participants now.

This study's enrollment of 44,101 is above the median of 102 across 4,364 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

China National Biotec Group Company Limited is the lead sponsor of 37 studies on the registry; 2 are open to participants now.

First submitted after China National Biotec Group Company Limited became part of Sinopharm.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Healthy subjects aged 18 years old and above.
  2. By asking for medical history and physical examination, the investigator judged that the health condition is well.
  3. Female subjects of childbearing age are not nursing or pregnant at the time of enrolment (negative urine pregnancy test) and have no family planning within the first 3 months after enrolment. Effective measures have been taken within 2 weeks before inclusion.
  4. During the whole follow-up period of the study, be able and willing to complete the whole prescribed study plan.
  5. With self-ability to understand the study procedures, the \& voluntarily sign an informed consent form and be able to comply with the requirements of the clinical study protocol.

Exclusion criteria

Exclusion Criteria:

  1. Confirmed acute cases of SARS-CoV-2 Infection.
  2. Have a history of SARS, MERS infection (self-report, on-site inquiry).
  3. Positive urine pregnancy test result.
  4. Fever (body temperature > 37.0 ℃), dry cough, fatigue, nasal obstruction, runny nose, pharyngeal pain, myalgia, diarrhea, shortness of breath and dyspnea occurred within 14 days before vaccination.
  5. Axillary body temperature > 37.0 ℃ before vaccination.
  6. Previous severe allergic reactions to vaccination (such as acute allergic reactions, urticaria, dyspnea, angioneurotic edema or abdominal pain) or allergy to known ingredients of inactivated SARS-CoV-2 vaccine have occurred.
  7. Has a history of convulsion, epilepsy, encephalopathy or mental illness or family history.
  8. With congenital malformations or developmental disorders, genetic defects, severe malnutrition, etc.
  9. With severe liver diseases, severe kidney diseases defined as less than 60, uncontrollable hypertension (systolic blood pressure >150 mmHg, diastolic blood pressure > 90 mmHg), diabetic complications, malignant tumors, various acute diseases, or acute attack period of chronic diseases.
  10. Has been diagnosed with congenital or acquired immune deficiency, infection, lymphoma, leukemia or other diseases.
  11. With known or suspected diseases include acute respiratory diseases (e.g. influenza like illness, acute cough, sore throat), severe cardiovascular diseases, liver and kidney diseases, and malignant tumors.
  12. Has a history of coagulation dysfunction (e.g. Coagulation factor deficiency, coagulation disease).
  13. Receiving anti-TB therapy.
  14. Patients receiving immunotherapy or inhibitor therapy within 3 months (continuous oral or infusion for more than 14 days).
  15. is inoculated within 1 month before this vaccination, other vaccines are inoculated within 14 days before this vaccination.
  16. Received blood products within 3 months before this vaccination
  17. Received other research drugs within 6 months before this vaccination.
  18. Other circumstances judged by investigators that are not suitable for this clinical trial.
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
44,101 participants (actual)

Study arms

  • Experimental
    Investigational Vaccine 1

    Participants will receive 2 doses of the inactivated SARS-CoV-2 vaccine (Vero cell) manufactured by WIBP according to the immunization schedule of D0 \& D21.

    Biological: Inactivated SARS-CoV-2 Vaccine (Vero cell)

  • Experimental
    Investigational Vaccine 2

    Participants will receive 2 doses of the inactivated SARS-CoV-2 vaccine (Vero cell) manufactured by BIBP according to the immunization schedule of D0 \& D21.

    Biological: Inactivated SARS-CoV-2 Vaccine (Vero cell)

  • Placebo comparator
    Placebo

    Participants will receive 2 doses of Placebo according to the immunization schedule of D0 \& D21.

    Biological: Placebo

  • Experimental
    Investigational Vaccine 1b

    Participants will receive a booster dose of the inactivated SARS-CoV-2 vaccine (Vero cell) manufactured by WIBP after 3 months following two doses of immunization.

    Biological: Inactivated SARS-CoV-2 Vaccine (Vero cell)

  • Experimental
    Investigational Vaccine 2b

    Participants will receive a booster dose of the inactivated SARS-CoV-2 vaccine (Vero cell) manufactured by BIBP after 3 months following two doses of immunization.

    Biological: Inactivated SARS-CoV-2 Vaccine (Vero cell)

  • Placebo comparator
    Placebo-b

    Participants will receive a booster dose of Placebo after 3 months following two doses of immunization.

    Biological: Placebo

Interventions

06

What researchers measure

Primary outcomes

  1. The incidence of COVID-19 cases after two-doses of vaccination

    Time frame: From14 days after the second dose to 6 month after the second dose

  2. The incidence of COVID-19 cases after the booster dose of immunization

    Time frame: From 14 days after the booster dose

Secondary outcomes

  1. The incidence of severe cases of COVID-19 and deaths accompanied by COVID-19 after two-doses of vaccination

    Time frame: From 14 day after the second dose to 6 month after the second dose

  2. The incidence of severe cases of COVID-19 and deaths accompanied by COVID-19 after two-doses of vaccination

    Time frame: From 14 day after the booster dose

  3. The incidence of any adverse reactions/events

    Time frame: 28 days after each immunization

  4. The incidence of serious adverse events (SAE)

    Time frame: From the beginning of the first dose to 12 months after the second immunization

  5. The Geometric Mean Titer (GMT) of anti-SARS-CoV-2 neutralizing antibody

    Time frame: 14 days after full course of immunization

  6. The four-fold increase rate of anti-SARS-CoV-2 neutralizing antibody

    Time frame: 14 days after full course of immunization

  7. The Geometric Mean Fold Rise (GMFR) of anti-SARS-CoV-2 neutralizing antibody

    Time frame: 14 days after full course of immunization

  8. The Geometric Mean Titer (GMT) of anti-SARS-CoV-2 neutralizing antibody

    Time frame: 28 days, 3rd month, 6th month, 9th month, and 12th month after 2 doses of immunization

  9. The 4-fold increase rate of anti-SARS-CoV-2 neutralizing antibody

    Time frame: 28 days, 3rd month, 6th month, 9th month, and 12th month after 2 doses of immunization

  10. The Geometric Mean Fold Rise (GMFR) of anti-SARS-CoV-2 neutralizing antibody

    Time frame: 28 days, 3rd month, 6th month, 9th month, and 12th month after 2 doses of immunization

  11. The Geometric Mean Titer (GMT) of anti-SARS-CoV-2 neutralizing antibody

    Time frame: 14 days, 28 days and 6th month after the booster dose

  12. The 4-fold increase rate of anti-SARS-CoV-2 neutralizing antibody

    Time frame: 14 days, 28 days and 6th month after the booster dose

  13. The Geometric Mean Fold Rise (GMFR) of anti-SARS-CoV-2 neutralizing antibody

    Time frame: 14 days, 28 days and 6th month after the booster dose

Other outcomes

  1. the anti-SARS-CoV-2 neutralizing antibody protective level against COVID-19

    Time frame: 14 days after 2 doses of vaccination

  2. The occurrence of ADE

    Time frame: From the beginning of the first dose to 12 months after the second immunization

07

Study locations

6 sites
  • Bahrain International Exhibition & Convention Centre Affiliated to Salymynia Medical Complex S
    Sanabis, Bahrain
  • Katameya Medical Center
    Cairo, 11835, Egypt
  • Vacsera health Care facilities , MoH
    Cairo, 22311, Egypt
  • Prince Hamza Hospital
    Amman, Jordan
  • Sheikh Khalifa Medical City, SEHA
    Abu Dhabi, 51900, United Arab Emirates
  • Al Qarain Primary Health Care Centre-MOHAP
    Sharjah, 61545, United Arab Emirates
08

References and documents

Publications

  • Luan N, Li T, Wang Y, Cao H, Yin X, Lin K, Liu C. Th2-Oriented Immune Serum After SARS-CoV-2 Vaccination Does Not Enhance Infection In Vitro. Front Immunol. 2022 Apr 8;13:882856. doi: 10.3389/fimmu.2022.882856. eCollection 2022. PubMed 35464483 ↗
  • Al Kaabi N, Zhang Y, Xia S, Yang Y, Al Qahtani MM, Abdulrazzaq N, Al Nusair M, Hassany M, Jawad JS, Abdalla J, Hussein SE, Al Mazrouei SK, Al Karam M, Li X, Yang X, Wang W, Lai B, Chen W, Huang S, Wang Q, Yang T, Liu Y, Ma R, Hussain ZM, Khan T, Saifuddin Fasihuddin M, You W, Xie Z, Zhao Y, Jiang Z, Zhao G, Zhang Y, Mahmoud S, ElTantawy I, Xiao P, Koshy A, Zaher WA, Wang H, Duan K, Pan A, Yang X. Effect of 2 Inactivated SARS-CoV-2 Vaccines on Symptomatic COVID-19 Infection in Adults: A Randomized Clinical Trial. JAMA. 2021 Jul 6;326(1):35-45. doi: 10.1001/jama.2021.8565. PubMed 34037666 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 18, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04510207
Collaborators
G42 Healthcare company, Abu Dhabi Health Services Company, Wuhan Institute of Biological Products Co., Ltd, Beijing Institute of Biological Products Co Ltd.
Responsible party
Sponsor
First posted
Aug 12, 2020
Start date
Jul 16, 2020
Primary completion
Jun 16, 2021
Completion
Dec 31, 2021
Last update
Jun 18, 2023

Study contacts

Walid A Zaher, MD, MSc,PhD
study director · G42 Healthcare company

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2023. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Inactivated SARS-CoV-2 Vaccine

Start the discussion