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Rabies HumanPhase 3NCT05549908

Vaccine Prevention of Rabies Adopts 4-shot Immunization Method

A Phase 3 study testing rabies vaccine in people with Rabies Human and Antibody Titer, run by Changchun Zhuoyi Biological Co., Ltd 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
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Trial summary

A phase III clinical trial to evaluate the immunogenicity and safety of freeze-dried human rabies vaccine (Vero cell) developed by Changchun Zhuoyi Biological Co., Ltd. inoculated in a 4-dose procedure (2-1-1) Read more about this study

Who is it for?
Ages 10 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Rabies Human, Antibody Titer
What is being tested?
rabies vaccine
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,800 participants
Where
1 siteChina
Study dates
22 Jul 2020to 20 Apr 2023
Phase
Phase 3
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 10 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Who may be able to join

  • The age is 10-60 years old;
  • Underarm temperature ≤ 37.0 ℃.

Who cannot join

  • Have a history of rabies vaccine immunization or use of rabies virus passive immunization agents;
  • Has been diagnosed with congenital or acquired immunodeficiency disease;
  • Pregnancy (including positive urine pregnancy test) or lactation, planned pregnancy preparation within 2 months.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Changchun Zhuoyi Biological Co., Ltd

    Changchun, Jilin, 130000

Other trials in China

About this study

Official title: Randomized, Blind, Phase III Clinical Trial to Evaluate the Immunogenicity and Safety of Freeze-dried Human Rabies Vaccine (Vero Cell) Inoculated in 4-dose Program (2-1-1)

A phase III clinical trial to evaluate the immunogenicity and safety of freeze-dried human rabies vaccine (Vero cell) developed by Changchun Zhuoyi Biological Co., Ltd. inoculated in a 4-dose procedure (2-1-1)

Read the detailed description

It is to prove that the freeze-dried human rabies vaccine (Vero cell) in the population aged 10-60 years, the four dose vaccination program is not inferior to the five dose vaccination program, and the safty、antibody positive conversion rate and geometric mean concentration of the four dose group of the test vaccine are not inferior to the five dose program group 14 days after the first dose vaccination.

To compare the immunogenicity of people aged 10-60 years old who were vaccinated 6 and 12 months after the whole vaccination, so as to evaluate the antibody positive rate and GMT 6 and 12 months after the test vaccine was vaccinated.

Being tested
rabies vaccine

What participants receive

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

  • rabies vaccineBiological

    The subjects were vaccinated with rabies vaccines with different immunization procedures, and the safety and immunogenicity were compared

Study groups in NCT05549908
Study groupRoleWhat they receive
Experimental 4 dosesExperimentalInoculate experimental vaccine according to 2-1-1 immunization procedure
Receives: Biological: rabies vaccine
Experimental 5 dosesExperimentalInoculate experimental vaccine according to 1-1-1-1-1 immunization procedure
Receives: Biological: rabies vaccine
SPEEDA® 4 dosesActive comparatorInoculate SPEEDA® according to 2-1-1 immunization procedure
Receives: Biological: rabies vaccine

What is being measured

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

  1. Antibody positive conversion rate of experimental groups

    • Compare the Antibody positive conversion rate between two experimental groups 14 days after the first dose of inoculation.

    Measured: 3 months

  2. Antibody positive conversion rate of 4 doses groups

    -Compare the Antibody positive conversion rate between the SPEEDA 4 doses group and experimental 4 doses group 14 days after the first dose of inoculation.

    Measured: 3 months

  3. Compare the GMT between two experimental groups

    • Compare the GMT between two experimental groups 14 days after the first dose of inoculation.

    Measured: 3 months

  4. Geometric Mean Titer (GMT) of 4 doses groups

    • Compare the GMT between the SPEEDA 4 doses group and the experimental 4 doses group 14 days after the first dose inoculation.

    Measured: 3 months

  5. Safety within 30 minutes

    • Incidence rate of any local and systemic adverse events (AE) within 30 minutes after each dose of inoculation;

    Measured: 3 months

  6. Safety within 0-7 days

    • Incidence rate of collected AE within 0-7 days after each dose of inoculation;

    Measured: 3 months

  7. Safety within 6 months

    • Incidence rate of all serious adverse events (SAE) within 6 months from the first dose of inoculation to the full course of inoculation.

    Measured: 9months

Secondary outcomes (3)
  1. Antibody test of 7 days.

    • Antibody test 7 days after the first dose of inoculation.

    Measured: 3 months

  2. Antibody test after whole vaccination.

    • Antibody test 14days after the whole vaccination.

    Measured: 3 months

  3. Persistent observation within 12 months

    • Antibody test in different points within 12 months after the whole vaccination.

    Measured: 16 months

Timeline

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

  1. First posted22 Sep 2022
  2. Study start22 Jul 2020
  3. Primary completion31 Oct 2021
  4. Study completion20 Apr 2023

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 3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
1,800 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05549908
Sponsor's protocol ID
ZY201905001
Status last verified
Feb 2023
First submitted
14 Sep 2022
Last updated
13 Mar 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: all results.

Publications

  • Jin F, Zhu L, Wang Y, Qin G, Tian Y, Xie Y, Jin H, Zhang Y, Wang L, Li J, Wu Z, Sheng Y, Shi L, Yang G, Zhao Z, Chen L, Chen P, Jiang Z, Yu J, Gao Z, Li Q, Wu X, Miao L. Randomized, blind, controlled phase III clinical trial: Assessing the immunogenicity and safety of freeze-dried human rabies vaccine (vero cell) with a 4-dose regimen (2-1-1) in a 10-60 year-old demographic. Vaccine. 2024 Oct 3;42(23):126059. doi: 10.1016/j.vaccine.2024.06.026. Epub 2024 Jun 27.

    PubMed 38937182

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing rabies vaccine in people with Rabies Human and Antibody Titer, run by Changchun Zhuoyi Biological Co., Ltd 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 2 inclusion and 3 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 13 Mar 2024. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

Antibody positive conversion rate of experimental groups (time frame: 3 months). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05549908, which also lists 1 linked publication.

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 13 Mar 2024.

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