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DysenteryPhase 2NCT04865497

Immunogenicity and Safety of S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine in Volunteers Aged From 3 Months to 5 Years Old

A Phase 2 study testing S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine and Haemophilus b Conjugate Vaccine in people with Dysentery and Dysentery, Bacillary, run by Beijing Zhifei Lvzhu Biopharmaceutical 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

The purpose of this study is to evaluate immunogenicity and safety of S.flexneriza-S.sonnei Bivalent Conjugate Vaccine in healthy volunteers aged from 3 months to 5 years old. Read more about this study

Who is it for?
Ages 3 months to 5 yearsHealthy volunteers can take part
Conditions the study is for
Dysentery, Dysentery, Bacillary
What is being tested?
S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine and Haemophilus b Conjugate Vaccine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,050 participants
Where
1 siteChina
Study dates
19 Jan 2019to 31 Dec 2020
Phase
Phase 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 3 months to 5 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Health infants and children aged from 3 months to 5 years old.
  • Subject or legal representative who consent and has signed written informed consent.
  • Subject and parent/guardian who is able to comply with all study procedures.
  • Subject who did't receive blood products within 30 days ,immune with any live vaccine within 14 days and inactivated vaccine within 7 days before vaccination.
  • Subject who haven't immuned with diarrhea vaccination,3-11 months health infants who haven't immuned with Haemophilus b Conjugate vaccination,or had a history of Hib vaccination before the age of 1 but no history of vaccination after 1 year of age,and the interval between the day of the enrollment and the previous dose is more than one month.
  • Axillary temperature ≤37.0 ℃.

Who cannot join

  • Febrile illness (temperature ≥ 38°C) in the 3 days or in the acute phase of the disease / active period.
  • Subject who have symptoms such as diarrhea, abdominal pain, and pus and bloody stools in the past 3 days.
  • Subject who are allergic to tetanus toxoid.
  • Allergic history after vaccination.
  • Immunodeficiency diseases patients (such as perianal abscess suggests that there may be immunodeficiency in infants and young children) who administered with immunosuppressive agents (≥14 days).
  • Subject who are suffering from serious chronic diseases, cardiovascular disease,liver or kidney disease.
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  • Subject with congenital malformations, drug allergies, convulsions, epilepsy, history of craniocerebral trauma, encephalopathy and psychosis, or family history.
  • Subject who diagnosis of thrombocytopenia or other history of coagulopathy may cause intramuscular contraindication.
  • Children with abnormal labor(pregnancy week<37w,>42w),birth weight (<2500g,>4000g), asphyxia rescue history(Only applicable to 3-5 months old group).
  • Subject who plan to participate in or is in any other drug clinical trial.
  • Any condition that, in the judgment of investigator, may affect trial assessment.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Quanzhou Center for Disease Control and Prevention

    Quanzhou, Guangxi, 530000

Other trials in China

About this study

Official title: A Randomized, Blinded, Single-center, Parallel Controlled , Phase Ⅱ Clinical Trial to Evaluate Immunogenicity and Safety of S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine in Healthy Volunteers Aged From 3 Months to 5 Years Old

The purpose of this study is to evaluate immunogenicity and safety of S.flexneriza-S.sonnei Bivalent Conjugate Vaccine in healthy volunteers aged from 3 months to 5 years old.

Being tested
S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine, Haemophilus b Conjugate Vaccine
Medical subject headings
Dysentery, Dysentery, Bacillary

What participants receive

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

  • S.Flexneriza-S.Sonnei Bivalent Conjugate VaccineBiological

    Group 1:3/2/1 dose(s) according to age of subjects. Single intramuscular dose contains 10 µg S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine.

  • S.Flexneriza-S.Sonnei Bivalent Conjugate VaccineBiological

    Group 2:3/2/1 dose(s) according to age of subjects. Single intramuscular dose contains 5 µg S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine.

  • S.Flexneriza-S.Sonnei Bivalent Conjugate VaccineBiological

    Group 1:3/2/1 dose(s) according to age of subjects. Single intramuscular dose contains 10 µg adjuvant-free S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine.

  • Haemophilus b Conjugate VaccineBiological

    Group 1:3/2/1 dose(s) according to age of subjects. Single intramuscular dose contains 10 µg Haemophilus b Conjugate Vaccine.

Study groups in NCT04865497
Study groupRoleWhat they receive
High dose GroupExperimentalS.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine,10μg/dose
Receives: Biological: S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine; Biological: Haemophilus b Conjugate Vaccine
Low dose GroupExperimentalS.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine,5μg/dose
Receives: Biological: S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine; Biological: Haemophilus b Conjugate Vaccine
Adjuvant-free GroupOtherAdjuvant-free S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine,10μg/dose
Receives: Biological: S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine; Biological: Haemophilus b Conjugate Vaccine
Control GroupOtherHaemophilus b Conjugate Vaccine,10μg/dose
Receives: Biological: S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine

What is being measured

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

  1. incidence of adverse events during 30 days

    Occurrence of adverse events during a 30 day follow-up period after each vaccination

    Measured: 30 day after each vaccination

  2. Antibody positive rate

    Percentage of participants with seroresponse to each vaccination

    Measured: 30 day after each vaccination

Timeline

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

  1. First posted29 Apr 2021
  2. Study start19 Jan 2019
  3. Primary completion7 Dec 2019
  4. Study completion31 Dec 2020

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 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
1,050 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04865497
Sponsor's protocol ID
201820301
Status last verified
Dec 2021
First submitted
15 Oct 2018
Last updated
13 Jan 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Mo Y, Fang W, Li H, Chen J, Hu X, Wang B, Feng Z, Shi H, He Y, Huang D, Mo Z, Ye Q, Du L. Safety and Immunogenicity of a Shigella Bivalent Conjugate Vaccine (ZF0901) in 3-Month- to 5-Year-Old Children in China. Vaccines (Basel). 2021 Dec 28;10(1):33. doi: 10.3390/vaccines10010033.

    PubMed 35062694

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing S.Flexneriza-S.Sonnei Bivalent Conjugate Vaccine and Haemophilus b Conjugate Vaccine in people with Dysentery and Dysentery, Bacillary, run by Beijing Zhifei Lvzhu Biopharmaceutical 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 6 inclusion and 11 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 Jan 2022. 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 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?

incidence of adverse events during 30 days (time frame: 30 day after each vaccination). 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 NCT04865497, 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 Jan 2022.

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