ClinicalTrials.gg
Status unknownNCT04758273Updated Feb 17, 2021

A Safety and Immunogenicity Study of Inactivated SARS-CoV-2 Vaccine (Vero Cells) in Healthy Population Aged 18 Years and Above(COVID-19)

A Phase 1 interventional study of medium dosage inactivated SARS-CoV-2 vaccine and high dosage inactivated SARS-CoV-2 vaccine in COVID-19, sponsored by Beijing Minhai Biotechnology Co., Ltd. Status unknown at 1 site in China. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-02-17.

Sponsored by Beijing Minhai Biotechnology Co., Ltd · Phase 1, Interventional, and Prevention

The sponsor has not verified this record recently (last verified Feb 2021), so the status shown — last known as Active, not recruiting — may be out of date.

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Oct 2020, registered Feb 2021).
Phase
Phase 1
Study type
Interventional
Enrollment
180
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is a randomized, double-blinded, and placebo controlled phase Ⅰ clinical trial of the SARS-CoV-2 inactivated vaccine to evaluate the safety and immunogenicity of the experimental vaccine in healthy adults ⩾18 years.

02

Conditions studied

  • COVID-19

Browse trials for

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 180 is above the median of 102 across 4,364 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Beijing Minhai Biotechnology Co., Ltd is the lead sponsor of 10 studies on the registry; 1 is open to participants now.

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 permanent residents aged 18 years and above;
  2. Subjects agree to sign the forms voluntarily;
  3. Subjects are able to comply with the requirements of the clinical trial protocol;
  4. Armpit temperature \<=37.0 degree C;
  5. Female subjects of childbearing age were not pregnant at the time of enrollment, were not breastfeeding, and had no birth plan within the first 3 months after enrollment; effective measures had been taken within 2 weeks before enrollment.

Exclusion criteria

Exclusion Criteria:

  1. Within 14 days before vaccination, subjects have been abroad and to villages/communities experienced COVID-19 epidemics, and in contact with COVID-19 cases or suspected cases. Subjects are under isolation observation, or living in the villages/communities with COVID-19 cases or suspected cases;
  2. Confirmed cases, suspected cases or asymptomatic cases with COVID-19 (refer to Information System of China Disease Prevention and Control);
  3. Subjects with history of SARS virus infection by self-reported;
  4. Positive in throat swab through RT-PCR;
  5. Positive in SARS-CoV-2 antibody test;
  6. Subjects with abnormal indicators, such as blood biochemistry, blood routine, urine routine and coagulation function which might show clinical meaning, before administration;
  7. Subjects with history of severe allergic reactions (such as acute anaphylaxis, urticaria, skin eczema, dyspnea, angioneurotic edema or abdominal pain) or allergy to known composition of inactivated SARS-CoV-2 vaccine;
  8. Subjects with history of convulsion, epilepsy, encephalopathy or mental illness or family history;
  9. Subjects with congenital malformations or developmental disorders, genetic defects, severe malnutrition, etc.;
  10. Subjects with known or suspected diseases include: severe respiratory diseases, severe cardiovascular diseases, severe liver and kidney diseases, uncontrollable hypertension (systolic pressure >=140 mmHg, diastolic pressure >=90 mmHg; subjects aged >=60 years with systolic pressure >=150 mmHg, diastolic pressure >=100 mmHg), diabetic complications, malignant tumors, various acute diseases or acute onset of chronic diseases;
  11. Subjects diagnosed with congenital or acquired immune deficiency, infection, lymphoma, leukemia or other diseases;
  12. Subjects with history of coagulation dysfunction (e.g. Coagulation factor deficiency, coagulation disease);
  13. Subjects receiving anti-TB treatment;
  14. Subjects receiving other research drugs within 6 months before vaccination;
  15. Subjects receiving immunotherapy or inhibitor therapy within 3 months (consistently oral or infusion for more than 14 days);
  16. Subjects receiving blood products within 3 months before administration;
  17. Subjects vaccinated with within 14 days before vaccination;
  18. Subjects vaccinated with other vaccine within 7 days before vaccination;
  19. The researchers shall judge the other conditions which might be not in compliance with the requirements of this clinical trial.
Terms in these criteria, in plain language(5)

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.

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.

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.

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 1
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
180 participants (actual)

Study arms

  • Experimental
    medium dosage on day 0, 14(18~59 years)

    Two doses of medium dosage inactivated SARS-CoV-2 vaccine on the schedule of day 0,14

    Biological: medium dosage inactivated SARS-CoV-2 vaccine

  • Experimental
    high dosage on day 0, 14(18~59 years)

    Two doses of high dosage inactivated SARS-CoV-2 vaccine on the schedule of day 0,14

    Biological: high dosage inactivated SARS-CoV-2 vaccine

  • Placebo comparator
    placebo on day 0, 14(18~59years)

    Two doses of placebo on the schedule of day 0,14

    Biological: Placebo

  • Experimental
    medium dosage on day 0, 28, 56(18~59 years)

    Three doses of medium dosage inactivated SARS-CoV-2 vaccine on the schedule of day 0,28,56

    Biological: medium dosage inactivated SARS-CoV-2 vaccine

  • Experimental
    high dosage on day 0, 28, 56(18~59 years)

    Three doses of high dosage inactivated SARS-CoV-2 vaccine on the schedule of day 0,28,56

    Biological: high dosage inactivated SARS-CoV-2 vaccine

  • Placebo comparator
    placebo on day 0, 28, 56(18~59 years)

    Three doses of placebo on the schedule of day 0,28,56

    Biological: Placebo

  • Experimental
    medium dosage on day 0, 28, 56(>59 years)

    Three doses of medium dosage inactivated SARS-CoV-2 vaccine on the schedule of day 0,28,56

    Biological: medium dosage inactivated SARS-CoV-2 vaccine

  • Experimental
    high dosage on day 0, 28, 56(>59 years)

    Three doses of high dosage inactivated SARS-CoV-2 vaccine on the schedule of day 0,28,56

    Biological: high dosage inactivated SARS-CoV-2 vaccine

  • Placebo comparator
    placebo on day 0, 28, 56(>59 years)

    Three doses of placebo on the schedule of day 0,28,56

    Biological: Placebo

Interventions

  • Biologicalmedium dosage inactivated SARS-CoV-2 vaccine

    medium dosage

  • Biologicalhigh dosage inactivated SARS-CoV-2 vaccine

    high dosage

  • BiologicalPlacebo

    placebo

06

What researchers measure

Primary outcomes

  1. Incidence of adverse reactions/events

    Time frame: 0-28 days after each dose of vaccination

Secondary outcomes

  1. Serious Adverse Events (SAE)

    Time frame: within 12 months post full vaccination

  2. Incidence of abnormal indicators of laboratory safety examinations(including blood routine, blood biochemistry, urine routine and coagulation function)

    Time frame: Day 3 after each dose of vaccination

  3. The seropositive rates of SARS-CoV-2 neutralizing antibody

    Time frame: Day 14 and day 28 after each dose of vaccination, and 3, 6 and 12 months post full vaccination

  4. The seropositive level of SARS-CoV-2 neutralizing antibody

    Time frame: Day 14 and day 28 after each dose of vaccination, and 3, 6 and 12 months post full vaccination

  5. The seropositive rates of SARS-CoV-2 IgG antibody(tested by ELISA)

    Time frame: Day 14 and day 28 after each dose of vaccination, and 3, 6 and 12 months post full vaccination

  6. The seropositive level of SARS-CoV-2 IgG antibody(tested by ELISA)

    Time frame: Day 14 and day 28 after each dose of vaccination, and 3, 6 and 12 months post full vaccination

  7. The proportion of IFN-γ positive cells (by ELISpot)

    Time frame: Before second and third vaccination, day 28 post full vaccination(18~59years, 3 doses group); before second vaccination and day 14 post full vaccination(18~59years, 2 doses group); 3, 6 and 12 months post full vaccination(18~59years, both group)

  8. Level of IL-2、IL-4、IL-5、IL-6、TNFα、IFN-γ (by ELISA)

    Time frame: Before second and third vaccination, day 28 post full vaccination(18~59years, 3 doses group); before second vaccination and day 14 post full vaccination(18~59years, 2 doses group); 3, 6 and 12 months post full vaccination(18~59years, both group)

Other outcomes

  1. The SARS-CoV-2 antibody level of IgG1, IgG2, IgG3, IgG4 and Nucleoprotein

    Time frame: Day 14 and 28 after each dose, and 3, 6, 12 months post full vaccination(18~59years)

07

Study locations

1 site
  • Jiangsu Provincial Center for Diseases Control and Prevention
    Nanjing, Jiangsu 210000, China
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Oct 2020 (actual). Primary completion is estimated for Jun 2021, 8 months after the start.

Of 233 industry-sponsored phase 1 interventional studies under COVID-19, half reached primary completion within 6 months of starting (the median), counting those still running; a quarter within 2 and three quarters within 12. This study's planned 8 months is above that.

Counting every sponsor, half of 384 studies reached it within 7 months; a quarter within 3 and three quarters within 15.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 9, 2021
First posted
Feb 17, 2021
StartActual
Oct 7, 2020
Primary completionEst.
Jun 30, 2021
CompletionEst.
Feb 28, 2022
Last update
Feb 17, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 17, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04758273
Lead sponsor
Beijing Minhai Biotechnology Co., Ltd
Collaborators
Shenzhen Kangtai Biological Products Co., LTD, Jiangsu Province Centers for Disease Control and Prevention
Responsible party
Sponsor
First posted
Feb 17, 2021
Start date
Oct 7, 2020
Primary completion
Jun 30, 2021 (estimated)
Completion
Feb 28, 2022 (estimated)
Last update
Feb 17, 2021

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Feb 2021. You cannot join it, but the record below documents what was studied.

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