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PoliomyelitisPhase 4NCT04224519

Consistency Study for Three Commercial Lots of Inactivated Poliomyelitis Vaccine Made From Sabin Strain

A Phase 4 study testing sIPV batch 1, sIPV batch 2 and sIPV batch 3 in people with Poliomyelitis, 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
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Trial summary

A randomized and blind clinical consistency study for three commercial batches of Inactivated Poliomyelitis Vaccine Made From Sabin Strain (sIPV) for immunogenicity and safety evaluation. Read more about this study

Who is it for?
Ages 2 to 3 monthsHealthy volunteers can take part
Conditions the study is for
Poliomyelitis
What is being tested?
sIPV batch 1, sIPV batch 2 and sIPV batch 3
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,200 participants
Where
1 siteChina
Study dates
15 Apr 2018to 12 Oct 2019
Phase
Phase 4
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 2 to 3 months
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Healthy infants of 2 months of age
  • The legal identity certificate (birth/household register) and vaccination certificate of the participants can be provided, and the legal guardian can provide the legal identity certificate (identity card).
  • Guardians are able to understand the experimental vaccine, volunteer to participate in the study and sign informed consent for participation.
  • Guardians are capable of using thermometer, graduated scale, filling diary card and contact card.
  • Participants are not vaccinated with polio vaccine and immunoglobulin (except for Hepatitis b specific immunoglobulin) after birth, no vaccination of live vaccine within 28 days before enrollment and no vaccination of inactivated vaccine within 14 days before enrollment.
  • Participants or guardians are able to obey and follow all study instructions, complete all the monitoring, and cooperate to complete collection of blood sample.
  • Axillary temperature ≤37℃

Who cannot join

  • Allergic to any active substance, inactive substance or materials used during production such as kanamycin.
  • Patients with fever or acute disease.
  • Have thrombocytopenia or hemorrhagic diseases
  • Patients undergoing immunosuppressive therapy or immunodeficiency
  • Have uncontrolled epilepsy or other progressive neurological disorders
  • Other situations that the investigator consider as non-eligible

Trial locations and contacts

1 site in 1 country.

China1 site
  • Disease prevention and control center of Yunnan province

    Kunming, Yunnan, 650022

Other trials in China

About this study

A randomized and blind clinical consistency study for three commercial batches of Inactivated Poliomyelitis Vaccine Made From Sabin Strain (sIPV) for immunogenicity and safety evaluation.

Read the detailed description

This randomized and blind clinical study includes three test groups with 400 infants for each group. Sample estimation for this study has been conducted using statistical methods.

A total of 1,200 2-month old healthy subjects were enrolled for inoculation of vaccine from 3 different lots with 1 month interval. All subjects received blood collection for immunogenicity test before and after primary immunization for evaluation of immunogenicity consistency, while safety observation was conducted within 30 days after each vaccination (30min via close safety monitoring, 0-7 days via participant diary card and 8-30 days via contact card for collection of adverse events) for safety evaluation of sIPV of 3 commercial lots.

Conditions
Poliomyelitis
Being tested
sIPV batch 1, sIPV batch 2, sIPV batch 3
Medical subject headings
Poliomyelitis

What participants receive

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

  • sIPV batch 1Biological

    Type I 30 DU, Type II 32 DU, Type III 45 DU

  • sIPV batch 2Biological

    Type I 30 DU, Type II 32 DU, Type III 45 DU

  • sIPV batch 3Biological

    Type I 30 DU, Type II 32 DU, Type III 45 DU

Study groups in NCT04224519
Study groupRoleWhat they receive
Batch 1 of sIPVExperimentalThe first commercial batch of sIPV
Receives: Biological: sIPV batch 1
Batch 2 of sIPVExperimentalThe second commercial batch of sIPV
Receives: Biological: sIPV batch 2
Batch 3 of sIPVExperimentalThe third commercial batch of sIPV
Receives: Biological: sIPV batch 3

What is being measured

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

  1. Seroconversion rate of neutralizing antibody

    Blood samples were collected before and after immunization. Seroconversion rate of serum neutralizing antibody was determined. Intergroup differences analysis of the post-immunization positive conversion and ≥4-fold increase rate of antibody was performed.

    Measured: 1 month after primary immunization

  2. Local and systemic adverse reactions

    Safety monitoring for local and systemic adverse reaction within 30 days after 3-dose primary immunization via close monitoring or diary card.

    Measured: Within 1 month after primary immunization

Secondary outcomes (1)
  1. GMT of neutralizing antibody

    Blood samples were taken before and after immunization for the determination of antibody level of serum neutralizing antibody. Intergroup differences analysis of antibody level was conducted.

    Measured: 1 month after primary immunization

Timeline

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

  1. First posted13 Jan 2020
  2. Study start15 Apr 2018
  3. Primary completion25 Feb 2019
  4. Study completion12 Oct 2019

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 4
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
1,200 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04224519
Sponsor's protocol ID
20171217
Status last verified
Oct 2023
First submitted
6 Jan 2020
Last updated
11 Oct 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Participants do not agree to share the individual data.

Publications

  • Yin Q, Zheng Y, Ying Z, Li J, Jiang Y, Bao W, Dou Y, Pu Y, Lei J, Yang H, Jiang R, Deng Y, Zhao Z, Pu J, Yang J, Li Y, Xu M, Cai W, Che Y, Shi L. Quantitative Analysis of the Instant and Persistent Inhibition Effects of Maternal Poliovirus Antibodies on the Immune Response in a Phase IV Trial of a Sabin Strain-Based Inactivated Poliovirus Vaccine. Vaccines (Basel). 2024 Feb 19;12(2):217. doi: 10.3390/vaccines12020217.

    PubMed 38400200
  • Yin Q, Zheng Y, Ying Z, Li J, Jiang Y, Bao W, Dou Y, Pu Y, Lei J, Yang H, Jiang R, Deng Y, Zhao Z, Pu J, Yang J, Li Y, Xu M, Cai W, Che Y, Shi L. Immunogenicity and lot-to-lot consistency of booster shot with Sabin inactivated poliomyelitis vaccine in Chinese children aged 18-24 Months: A phase Ⅳ clinical trial. Vaccine. 2024 Mar 19;42(8):1973-1979. doi: 10.1016/j.vaccine.2024.02.042. Epub 2024 Feb 21.

    PubMed 38388236
  • Jiang R, Liu X, Sun X, Wang J, Huang Z, Li C, Li Z, Zhou J, Pu Y, Ying Z, Yin Q, Zhao Z, Zhang L, Lei J, Bao W, Jiang Y, Dou Y, Li J, Yang H, Cai W, Deng Y, Che Y, Shi L, Sun M. Immunogenicity and safety of the inactivated poliomyelitis vaccine made from Sabin strains in a phase IV clinical trial for the vaccination of a large population. Vaccine. 2021 Mar 1;39(9):1463-1471. doi: 10.1016/j.vaccine.2021.01.027. Epub 2021 Jan 22.

    PubMed 33487470

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing sIPV batch 1, sIPV batch 2 and sIPV batch 3 in people with Poliomyelitis, 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 7 inclusion and 6 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. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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?

Seroconversion rate of neutralizing antibody (time frame: 1 month after primary immunization). The study lists 2 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 NCT04224519, which also lists 3 linked publications.

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.

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