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RecruitingNCT06605755Updated Sep 20, 2024

Safety and Immunogenicity of DTaP-IPV/Hib Pentavalent Vaccine in Chinese 2-month-old Infants

An interventional study of Different immunization regiments with DTaP-IPV/Hib Pentavalent Vaccine in Pertussis, Diphtheria and Tetanus, sponsored by Jiangsu Province Centers for Disease Control and Prevention. Recruiting at 1 site in China. Open to participants aged 19 Months to 22 Months, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-09-20.

Sponsored by Jiangsu Province Centers for Disease Control and Prevention · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by Dec 2025, 11 months ago, but the record still lists the study as recruiting.
  • Started Sep 2024; still recruiting 2 years 2 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
785
Allocation
Randomized
Ages
19 Months to 22 Months
Sex
All
01

Study summary

The main purpose of this study is to evaluate immune persistence at 30 and 36 Months of Age and Pertussis Breakthrough Infections between 19 and 36 Months of Age following two regiments of DTaP-IPV/Hib Pentavalent Vaccine in Healthy 2-Month-Old Infants and Children in China.

Read the detailed description

This study was based on the DTaP-IPV/Hib Pentavalent Vaccine Basic Immunization Strategy Optimization Study Cohort ("Pentavalent Vaccine Cohort") and the Epidemiological Investigation of Carrying Status of Pathogens Causing Acute Respiratory Infections (ARIs) in Infants and Young Children Cohort ("Pathogen Surveillance Cohort").

DTaP-IPV/Hib vaccine basic immunization strategy optimization study is a single-center, randomized, prospective and open clinical trial. The study was designed for two groups: 2, 3, 4, 18 months of age (control group) and 2, 4, 6, 18 months of age (intervention group). Subjects were randomly assigned to two groups according to the principle of informed consent. Collect basic demographic information of children and their families. The control group received 3 doses of acellular DPT vaccine at 2, 3 and 4 months of age respectively, and 1 dose at 18 months of age; The intervention group received 3 doses of acellular DPT vaccine at 2, 4 and 6 months of age respectively, and 1 dose at 18 months of age. The immunogenicity and safety were observed before and after 28 days of 3 doses of basal immunization, and after 28 days of enhanced immunization at 18 months of age.

The pathogen surveillance team included 2-month-old infants and caregivers with whom they shared a life history. After informed consent, the researchers followed up the subjects from 2 months of age to 19 months of age. The main contents of the visit are sample collection and unified questionnaire survey.

On the basis of the surveillance of ARI aged 2 to 19 months, follow-up was conducted for 17 months. During the follow-up period, ARI telephone visit was conducted twice a week. After ARI was found, pathogen sampling and testing were conducted for them (participants and their caregivers) to monitor the emergence of pertussis infection. Blood samples and throat swabs were collected at 30 and 36 months of age (caregivers were also required to take simultaneous samples), and penta vaccine immunity persistence was observed and multiple respiratory pathogens were monitored.

02

Conditions studied

  • Pertussis
  • Diphtheria
  • Tetanus
  • Haemophilus Influenzae Type B Infection
  • Polio
03

In context

Whooping Cough

290 studies on the registry are indexed under Whooping Cough; 23 are open to participants now.

This study's planned enrollment of 785 is above the median of 400 across 228 interventional studies indexed under Whooping Cough.

Browse Whooping Cough studies →

Lead sponsor

Jiangsu Province Centers for Disease Control and Prevention is the lead sponsor of 77 studies on the registry; 5 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
19 Months to 22 Months
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)Received 4 doses of DTaP-IPV/Hib pentavalent vaccines (2) Obtained consent from the participant's caregiver and sign an form

Exclusion criteria

Exclusion Criteria:

-(1) Diagnosed by a physician with a coagulation abnormality (e.g., coagulation factor deficiency, coagulopathy, abnormality) (2) Any other factor considered to make participation in the trial unsuitable.

Terms in these criteria, in plain language(2)

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.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
785 participants (estimated)

Study arms

  • Experimental
    Intervention group

    Intervention group: 1 dose of DTaP-IPV/Hib Pentavalent Vaccine at 2, 4 and 6 months of age, and 1 dose of enhanced vaccine at 18 months of age.

    Procedure: Different immunization regiments with DTaP-IPV/Hib Pentavalent Vaccine

  • Active comparator
    Control group

    Control group: 1 dose of DTaP-IPV/Hib Pentavalent Vaccine at 2, 3 and 4 months of age, and 1 dose of enhanced vaccine at 18 months of age.

    Procedure: Different immunization regiments with DTaP-IPV/Hib Pentavalent Vaccine

Interventions

  • ProcedureDifferent immunization regiments with DTaP-IPV/Hib Pentavalent Vaccine

    The test vaccine in this study was Pentaxim®, a pentavalent vaccine produced by Sanofi Pasteur, France.This vaccine is a combination vaccine consisting of adsorbed acellular DTP and inactivated polio vaccine (DTaP-IPV) and Haemophilus influenzae type b conjugate vaccine (Hib). 1. Intervention group: 1 dose of experimental vaccine at 2, 4 and 6 months of age, and 1 dose of enhanced vaccine at 18 months of age. 2. Control group: 1 dose of experimental vaccine at 2, 3 and 4 months of age, and 1 dose of enhanced vaccine at 18 months of age.

06

What researchers measure

Primary outcomes

  1. Anti-pertussis toxin, anti-pertussis filamentous hemagglutinin, anti-pertussis adhesin, anti-pertussis FIM2, anti-pertussis FIM3 .Anti-diphtheria, anti-tetanus, anti-HIB PRP and anti-type 1, 2 and 3 poliomyelitis antibody levels .

    Measure antibody levels

    Time frame: 30 months of age

  2. Anti-pertussis toxin, anti-pertussis filamentous hemagglutinin, anti-pertussis adhesin, anti-pertussis FIM2, anti-pertussis FIM3 .Anti-diphtheria, anti-tetanus, anti-HIB PRP and anti-type 1, 2 and 3 poliomyelitis antibody levels .

    Measure antibody levels

    Time frame: 36 months of age

Secondary outcomes

  1. The positive rate of anti-pertussis toxin, anti-pertussis filamentous hemagglutinin , anti-pertussis adherin, anti-pertussis FIM2, anti-pertussis FIM3 ,anti-diphtheria , anti-tetanus , anti-HIB PRP and anti-type 1, 2, 3 poliomyelitis antibody

    Measure positive rate of antibody and the growth multiple of GMC

    Time frame: 30 months of age

  2. The positive rate of anti-pertussis toxin, anti-pertussis filamentous hemagglutinin , anti-pertussis adherin, anti-pertussis FIM2, anti-pertussis FIM3 ,anti-diphtheria , anti-tetanus , anti-HIB PRP and anti-type 1, 2, 3 poliomyelitis antibody

    Measure positive rate of antibody and the growth multiple of GMC

    Time frame: 36 months of age

  3. To evaluate the pathogen detection rates of ARI in 2-month-old healthy infants in China after different DTaP-IPV/Hib vaccination programs during 19-36 months of age.

    The pathogen detection rate was calculated.

    Time frame: 19-36 months of age

  4. To evaluate the pertussis breakthrough infection rate in healthy infants and young children aged 19 to 36 months after receiving DTaP-IPV/Hib vaccine.

    To evaluate the pertussis breakthrough infection rate.

    Time frame: 19-36 months of age

07

Study locations

1 of 1 sites recruiting
  • Jingsu Provincial Centre of Disease Control and Prevention
    Nanjing, Jiangsu 210009, China
    Recruiting
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 Sep 2024 (actual). Primary completion is estimated for Dec 2025, 15 months after the start.

Of 14 interventional studies with no phase under Whooping Cough, half reached primary completion within 14 months of starting (the median), counting those still running; a quarter within 7 and three quarters within 25. This study's planned 15 months is close to that.

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

Registered
Sep 4, 2024
First posted
Sep 20, 2024
StartActual
Sep 5, 2024
Primary completionEst.
Dec 2025
CompletionEst.
Feb 2026
Last update
Sep 20, 2024
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 Sep 20, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06605755
Lead sponsor
Jiangsu Province Centers for Disease Control and Prevention
Responsible party
Sponsor
First posted
Sep 20, 2024
Start date
Sep 5, 2024
Primary completion
Dec 2025 (estimated)
Completion
Feb 2026 (estimated)
Last update
Sep 20, 2024

Study contacts

Jingxin Li
Contact
jingxin42102209@126.com
+8613813865838
jingxin42102209@126.com Li
study director · Jingsu Provincial Centre of Disease Control and Prevention

Oversight

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

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