AzTrials
AzTrials

COVID-19Phase 1/2NCT04470609

Safety and Immunogenicity Study of an Inactivated SARS-CoV-2 Vaccine for Preventing Against COVID-19 in People Aged ⩾60 Years

A Phase 1/2 study testing Low dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule, Medium dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule and High dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule in people with COVID-19, run by Institute of Medical Biology, Chinese Academy of Medical Sciences at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

This study is a randomized, double-blinded, and placebo-controlled phase Ib/IIb clinical trial of the Inactivated SARS-CoV-2 Vaccine to evaluate the safety and immunogenicity of the vaccine in healthy people aged ⩾60 Years. Read more about this study

Who is it for?
Ages 60 years and olderHealthy volunteers can take part
Conditions the study is for
COVID-19
What is being tested?
Low dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule, Medium dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule and High dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule
Type of treatment
Vaccines
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
471 participants
Where
1 siteChina
Study dates
10 Jul 2020to 27 Oct 2021
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 60 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Phase Ib:
  • Healthy people aged ⩾60 years (including boundary values), both men and women.
  • Proven legal identity.
  • Participants should understand the contents of the informed consent form, the vaccine in this trial, voluntarily sign the informed consent form, and be capable of using thermometers, scales, and filling in diary cards and contact cards as required.
  • Participants should be able to communicate well with investigators, understand and comply with the requirements of this trial.
  • Axillary temperature ≤37.0 ℃.
Show all 12Show fewer
  • Phase IIb:
  • Healthy people aged ⩾60 years (including boundary values), both men and women.
  • Proven legal identity.
  • Participants should understand the contents of the informed consent form, the vaccine in this trial, voluntarily sign the informed consent form, and be capable of using thermometers, scales, and filling in diary cards and contact cards as required.
  • Participants should be able to communicate well with investigators, understand and comply with the requirements of this trial.
  • Axillary temperature ≤37.0 ℃.

Who cannot join

  • Phase Ib:
  • Contraindications for vaccination.
  • History of allergy to vaccines or drugs.
  • Immunization with any vaccine within 1 month.
  • Diseases that cannot be controlled by drugs, such as hypertension, diabetes, asthma, etc.
  • Those who developed acute disease within 2 weeks, or had symptoms of fever or upper respiratory tract infection within 7 days.
Show all 42Show fewer
  • Those who have a hereditary bleeding tendency or coagulation dysfunction, or a history of thrombosis or bleeding disorders.
  • Those who cannot tolerate venipuncture, or have a history of halo needles or halo blood.
  • For any reason, the spleen was removed partially or completely.
  • Those who have undergone surgery within 3 months before signing the informed consent, or those who plan to perform surgery during the trial or within 3 months after the end of the trial (including cosmetic surgery, dental and oral surgery).
  • Those who donated or lost blood (≥200 mL) in the past 3 months, who received blood transfusion or use of blood products, or who planned blood donation during the trial.
  • Receipt of other investigational or unregistered products (drugs, vaccines, biological product or devices) in the past 3 months, or plan to use other investigational or unregistered products during the study.
  • Receipt of immunosuppressive therapy within 6 months before signing the informed consent form, such as long-term systemic glucocorticoid therapy (with systemic glucocorticoid therapy for more than 2 weeks within 6 months, such as prednisone or similar drugs) ), but local administration (such as ointment, eye drops, inhalation, or nasal spray) is allowed. The local administration should not exceed the dosage recommended in the instructions or have any signs of systemic exposure.
  • Those who have took soft drugs (such as marijuana) within 3 months before signing the informed consent form or took hard drugs (such as: cocaine, phencyclidine, etc.) within 1 year before the trial.
  • Those who smoked more than 5 cigarettes per day within 3 months before signing the informed consent form.
  • The weekly drinking volume is greater than 14 units within 3 months before signing the informed consent form (1 unit alcohol approximately equal to 360 mL beer or 45 mL spirits with 40% alcohol content or 150 mL wine).
  • The comprehensive physical examination does not meet the health standards, mainly including: (1) Those with abnormal vital signs with clinical significance. (2) BMI<18 kg/m^2 or> 30 kg/m^2. (3) Abnormal laboratory examination with clinical significance. (4) Those who tested positive for human immunodeficiency virus (HIV) antibody, hepatitis B surface antigen, hepatitis B e antigen, hepatitis C virus antibody, or Treponema pallidum antibody (tp-trust).
  • Women who have a positive pregnancy test, or men who have a birth plan or plan to donate sperm from the screening to 12 months after the second vaccination.
  • Positive in drug abuse screening during the screening period (Morphine, Methamphetamine, Ketamine, MDMA and Tetrahydrocannabinolic acid).
  • Positive in alcohol breath test during the screening period.
  • Positive in SARS-CoV-2 nucleic acid screening or antibodies (IgG or IgM) screening.
  • History of severe acute respiratory syndrome (SARS) or Middle East respiratory syndrome (MERS) or other coronavirus infection (HCoV-229E, HCoV-OC43, HCoV-NL63, HCoV-HKU1).
  • History of contact with confirmed or suspected cases infected with SARS-CoV-2 within 1 month.
  • Any other situations judged by investigators as not suitable for participating in this study.
  • Phase IIb:
  • Contraindications for vaccination.
  • History of allergy to vaccines or drugs.
  • Immunization with any vaccine within 1 month.
  • Diseases that cannot be controlled by drugs, such as hypertension, diabetes, asthma, etc.
  • Those who developed acute disease within 2 weeks, or had symptoms of fever or upper respiratory tract infection within 7 days.
  • Those who have a hereditary bleeding tendency or coagulation dysfunction, or a history of thrombosis or bleeding disorders.
  • For any reason, the spleen was removed partially or completely.
  • Those who have undergone surgery within 3 months before signing the informed consent, or those who plan to perform surgery during the trial or within 3 months after the end of the trial (including cosmetic surgery, dental and oral surgery).
  • Those who donated or lost blood (≥200 mL) in the past 3 months, who received blood transfusion or use of blood products, or who planned blood donation during the trial.
  • Receipt of other investigational or unregistered products (drugs, vaccines, biological product or devices) in the past 3 months, or plan to use other investigational or unregistered products during the study.
  • Receipt of immunosuppressive therapy within 6 months before signing the informed consent form, such as long-term systemic glucocorticoid therapy (with systemic glucocorticoid therapy for more than 2 weeks within 6 months, such as prednisone or similar drugs) ), but local administration (such as ointment, eye drops, inhalation, or nasal spray) is allowed. The local administration should not exceed the dosage recommended in the instructions or have any signs of systemic exposure.
  • Women who have a positive pregnancy test, or men who have a birth plan or plan to donate sperm from the screening to 12 months after the second vaccination.
  • History of severe acute respiratory syndrome (SARS) or Middle East respiratory syndrome (MERS) or other coronavirus infection (HCoV-229E, HCoV-OC43, HCoV-NL63, HCoV-HKU1).
  • History of contact with confirmed or suspected cases infected with SARS-CoV-2 within 1 month.
  • The comprehensive physical examination does not meet the health standards, mainly including: (1) Those with abnormal vital signs (Pulse <55 beats per minute or> 100 beats per minute at rest, Systolic blood pressure ≥140mmHg or Diastolic blood pressure ≥90mmHg, breathing> 20 beats per minute or <12 beats per minute). (2) Those who tested positive for human immunodeficiency virus (HIV) antibody, hepatitis B surface antigen, hepatitis B e antigen, hepatitis C virus antibody, or Treponema pallidum antibody (tp-trust).
  • Positive in SARS-CoV-2 nucleic acid screening or antibodies (IgG or IgM) screening.
  • Any other situations judged by investigators as not suitable for participating in this study.

Trial locations and contacts

1 site in 1 country.

China1 site
  • West China Second University Hospital, Sichuan University / West China women's and children's Hospital

    Chengdu, Sichuan, 610041

Other trials in China

About this study

Official title: A Randomized, Double-blind, Placebo-controlled, Phase Ib/IIb Trial of an Inactivated SARS-CoV-2 Vaccine in Healthy People Aged ⩾60 Years

This study is a randomized, double-blinded, and placebo-controlled phase Ib/IIb clinical trial of the Inactivated SARS-CoV-2 Vaccine to evaluate the safety and immunogenicity of the vaccine in healthy people aged ⩾60 Years.

Read the detailed description

This phase Ib/IIb trial is designed to evaluate the safety and immunogenicity of different doses of the Inactivated SARS-CoV-2 Vaccine based upon the randomized, double-blind and placebo-controlled principle. A total of 471 subjects aged ⩾60 years will be enrolled in the study, of which 96 and 375 will be enrolled for phase Ib and phase Ⅱb,respectively. The enrolled subjects in phase Ib receive two doses of low-, medium-, or high-dose of experimental vaccines or placebo at an interval of 28 days, while the enrolled subjects in Phase Ⅱb receive two doses of medium, high-dose experimental vaccines or placebo at an interval of 28 days.

Conditions
COVID-19
Being tested
Low dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule, Medium dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule, High dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule, Placebo on a 0- and 28-day schedule
Medical subject headings
COVID-19

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Low dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day scheduleBiological

    Two doses of low dosage(50U/0.5ml) Inactivated SARS-CoV-2 Vaccine at the vaccination schedule of day 0,28

  • Medium dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day scheduleBiological

    Two doses of medium dosage(100U/0.5ml) Inactivated SARS-CoV-2 Vaccine at the vaccination schedule of day 0,28

  • High dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day scheduleBiological

    Two doses of high dosage(150U/0.5ml) Inactivated SARS-CoV-2 Vaccine at the vaccination schedule of day 0,28

  • Placebo on a 0- and 28-day scheduleBiological

    Two doses of placebo at the vaccination schedule of day 0,28

Study groups in NCT04470609
Study groupRoleWhat they receive
Low dosage vaccine on a 0- and 28-day scheduleExperimentalTwo doses of low dosage Inactivated SARS-CoV-2 Vaccine at the vaccination schedule of day 0, 28
Receives: Biological: Low dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule
Medium dosage vaccine on a 0- and 28-day scheduleExperimentalTwo doses of medium dosage Inactivated SARS-CoV-2 Vaccine at the vaccination schedule of day 0, 28
Receives: Biological: Medium dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule
High dosage vaccine on a 0- and 28-day scheduleExperimentalTwo doses of high dosage Inactivated SARS-CoV-2 Vaccine at the vaccination schedule of day 0, 28
Receives: Biological: High dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule
Placebo on a 0- and 28-day schedulePlacebo comparatorTwo doses of placebo at the vaccination schedule of day 0, 28
Receives: Biological: Placebo on a 0- and 28-day schedule

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Adverse reactions/events rate

    Occurence of adverse reactions/events after vaccination

    Measured: 7 days after vaccination

  2. Adverse reactions/events rate

    Occurence of adverse reactions/events after vaccination

    Measured: 28 days after vaccination

  3. Seroconversion rate of Neutralizing antibodies against SARS-CoV-2 Phase IIb

    Seroconversion rate of neutralizing antibodies against SARS-CoV-2 in serum for Phase IIb with vaccination schedule of day 0, 28

    Measured: 28 days after vaccination

  4. Seroconversion rate of IgG antibodies against SARS-CoV-2 Phase IIb

    Seroconversion rate of IgG antibodies against SARS-CoV-2 tested by ELISA in serum for Phase IIb with vaccination schedule of day 0, 28

    Measured: 28 days after vaccination

Secondary outcomes (7)
  1. Serious adverse events

    Occurence of Serious adverse events after vaccination

    Measured: 12 months after the second vaccination

  2. Seroconversion rate of Neutralizing antibodies against SARS-CoV-2 Phase Ib

    Seroconversion rate of neutralizing antibodies against SARS-CoV-2 in serum for Phase Ib with vaccination schedule of day 0, 28

    Measured: 28 days after the second vaccination

  3. Seroconversion rate of IgG antibodies against SARS-CoV-2 Phase Ib

    Seroconversion rate of IgG antibodies against SARS-CoV-2 tested by ELISA in serum for Phase Ib with vaccination schedule of day 0, 28

    Measured: 28 days after the second vaccination

  4. Level of Neutralizing antibodies against SARS-CoV-2 Phase Ib

    Level of neutralizing antibodies against SARS-CoV-2 in serum for Phase Ib with vaccination schedule of day 0, 28

    Measured: 7 and 28 days after the second vaccination

  5. Level of IgG antibodies against SARS-CoV-2 Phase Ib

    Level of IgG antibodies against SARS-CoV-2 tested by ELISA in serum for Phase Ib with vaccination schedule of day 0, 28

    Measured: 7 and 28 days after the second vaccination

  6. Level of Neutralizing antibodies against SARS-CoV-2 Phase IIb

    Level of neutralizing antibodies against SARS-CoV-2 in serum for Phase IIb with vaccination schedule of day 0, 28

    Measured: 28 days after the second vaccination

  7. Level of IgG antibodies against SARS-CoV-2 Phase IIb

    Level of IgG antibodies against SARS-CoV-2 tested by ELISA in serum for Phase IIb with vaccination schedule of day 0, 28

    Measured: 28 days after the second vaccination

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Jul 2020
  2. Study start10 Jul 2020
  3. Primary completion30 Oct 2020
  4. Study completion27 Oct 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
471 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04470609
Sponsor's protocol ID
20200402
Status last verified
Oct 2023
First submitted
13 Jul 2020
Last updated
11 Oct 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Low dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule, Medium dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule and High dosage Inactivated SARS-CoV-2 Vaccine on a 0- and 28-day schedule in people with COVID-19, run by Institute of Medical Biology, Chinese Academy of Medical Sciences at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 12 inclusion and 42 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 11 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Adverse reactions/events rate (time frame: 7 days after vaccination). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Oct 2023.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in