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CompletedNCT06817187Updated Feb 10, 2025

Clinical Study on the Combined Administration of 15-Valent Pneumococcal Conjugate Vaccine and Diphtheria, Tetanus, Pertussis Vaccine

A Phase 3 interventional study of 15-Valent Pneumococcal Conjugate Vaccine and Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed) and 15-Valent Pneumococcal Conjugate Vaccine and Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed) in Streptococcus Pneumoniae Infections, sponsored by Beijing Zhifei Lvzhu Biopharmaceutical Co., Ltd. Completed at 1 site in China. Open to participants aged 3 Months to 3 Months, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-02-10.

Sponsored by Beijing Zhifei Lvzhu Biopharmaceutical Co., Ltd (part of Chongqing Zhifei Biological Products Co., Ltd.) · Phase 3, Interventional, and Prevention

From the registry’s dates

  • Registered 3 years 4 months after the study started (first participant enrolled Sep 2021, registered Jan 2025).
Phase
Phase 3
Study type
Interventional
Enrollment
1,110
Allocation
Randomized
Ages
3 Months to 3 Months
Sex
All
01

Study summary

This clinical study aims to evaluate the mutual influence of combined administration of 15-Valent Pneumococcal Conjugate Vaccine and Diphtheria, Tetanus, Pertussis Vaccine in the target population

02

Conditions studied

  • Streptococcus Pneumoniae Infections

Keywords

  • 15-valent pneumococcal conjugate vaccine
  • Diphtheria, Tetanus, Pertussis Vaccine
03

In context

Pneumococcal Infections

298 studies on the registry are indexed under Pneumococcal Infections; 26 are open to participants now.

This study's enrollment of 1,110 is above the median of 373 across 253 interventional studies indexed under Pneumococcal Infections.

Browse Pneumococcal Infections studies →

Lead sponsor

Beijing Zhifei Lvzhu Biopharmaceutical Co., Ltd is the lead sponsor of 22 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
3 Months to 3 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

  • Infants aged 3 months (90-119 days old), full-term (37-42 weeks pregnant), with a birth weight of ≥ 2.5kg;
  • The legal guardian provides and signs the informed consent form;
  • The legal guardian agrees to comply with the requirements of the clinical research protocol, is willing to accept a follow-up of 10 months, and has the ability to use thermometers, scales, and fill out diary cards; 4) Have not received pneumococcal vaccine or pertussis vaccine, and have no history of receiving other in the past 14 days or non live vaccines in the past 7 days; 5) Underarm temperature ≤ 37.0 ℃.

Exclusion criteria

Exclusion Criteria:

  • A history of invasive diseases caused by Streptococcus pneumoniae that has been confirmed through cultivation;
  • Known to be allergic to any component of the experimental vaccine, especially those allergic to diphtheria toxoid, or those who previously have a fever of 39.5 ℃ or above after receiving vaccine;
  • History or family history of seizures, epilepsy, encephalopathy, and mental illness;
  • Infants born with abnormal labor processes (difficult labor, instrumental delivery) or with a history of asphyxia or neurological organ damage;
  • A history of confirmed thrombocytopenia or other coagulation disorders may result in for subcutaneous injection;
  • Injecting human normal immunoglobulin after birth;
  • Known or suspected immunological dysfunction, receiving therapy (radiation therapy, chemotherapy, , antimetabolites, cytotoxic drugs), such as continuous treatment with systemic corticosteroids (prednisone or similar drugs) for ≥ 14 days, (HIV) infection, etc;
  • Having congenital malformations, severe malnutrition, developmental disorders, and genetic defects (such as favism);
  • Currently suffering from serious chronic diseases, infectious diseases, active infections, liver diseases, kidney diseases, cardiovascular diseases, and malignant tumors;
  • Severe asthma;
  • Systemic rash, skin ringworm, skin suppuration or blisters;
  • Currently or planning to participate in clinical trials of other drugs in the near future; Researchers believe that any situation that may affect the evaluation of the study.
Terms in these criteria, in plain language(6)

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.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
1,110 participants (actual)

Study arms

  • Experimental
    P+DTP group

    370 infants aged 3 months were enrolled in this group.

    Biological: 15-Valent Pneumococcal Conjugate Vaccine and Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed)

  • Experimental
    P-DTP group

    370 infants aged 3 months were enrolled in this group.

    Biological: Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed)

  • Active comparator
    DTP group

    370 infants aged 3 months were enrolled in this group.

    Biological: 15-Valent Pneumococcal Conjugate Vaccine and Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed)

Interventions

  • Biological15-Valent Pneumococcal Conjugate Vaccine and Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed)

    Administer 0.5ml of 15-Valent Pneumococcal Conjugate Vaccine and Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed) separately at different locations upon enrollment. Both vaccine were immunized according to the 0, 1, and 2 month procedures (calculated as 30 days per month).

  • Biological15-Valent Pneumococcal Conjugate Vaccine and Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed)

    Vaccination with 15-Valent Pneumococcal Conjugate Vaccine with a 7-day interval (+15 day window period) followed by vaccination with Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed). Both vaccine were immunized according to the 0, 1, and 2 month procedures (calculated as 30 days per month).

  • BiologicalDiphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed)

    Only administer the Diphtheria, Tetanus and Acellular pertussis (Component) Combined Vaccine (Adsorbed) and according to the 0, 1, and 2 month procedures (calculated as 30 days per month).

06

What researchers measure

Primary outcomes

  1. Antibody positive conversion rate

    The positive conversion rates of diphtheria antibody (anti-D), tetanus antibody (anti-T), pertussis toxin antibody (anti-PT), and pertussis filamentous hemagglutinin antibody (anti-FHA) in P+DTP, P-DTP, and DTP groups,respectively.

    Time frame: 30 days after full vaccination

Secondary outcomes

  1. AEs within 0-30 minutes after vaccination

    The occurrence of all adverse events within 0-30 minutes after each dose of vaccination

    Time frame: 0-30 minutes after vaccination

  2. Solicited AEs within 0-7 days after vaccination

    The occurrence of all solicited adverse events within 0-7 days after each dose of vaccination

    Time frame: 0-7 days after vaccination

  3. Unsolicited AEs within 0-30 days after vaccination

    The occurrence of all unsolicited adverse events within 0-30 days after each dose of vaccination.

    Time frame: 0-30 days after vaccination

  4. SAE within 0-6 months after primary immunization

    The occurrence of all serious adverse events within 0-6 months after primary immunization.

    Time frame: 0-6 months after primary immunization

  5. Positive rate of IgG antibodies

    Positive rate of susceptible individuals with 15 serotype specific pneumococcal IgG antibodies (percentage of subjects with antibody concentration ≥ 0.35 μ g/ml)

    Time frame: 30 days after full vaccination

  6. GMC of IgG antibody

    GMC of IgG antibody against 15 serotype specific pneumococcal.

    Time frame: 30 days after full vaccination

07

Study locations

1 site
  • Hebei Provincial Center for Disease Control and Prevention
    Shijiazhuang, Hebei 050021, China
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

Ran from Sep 2021 to primary completion in Mar 2024, 29 months.

Of 81 industry-sponsored phase 3 interventional studies under Pneumococcal Infections, half reached primary completion within 13 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 23. This study's 29 months is above that.

Counting every sponsor, half of 82 studies reached it within 13 months; a quarter within 9 and three quarters within 23.

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

Registered
Jan 24, 2025
First posted
Feb 10, 2025
StartActual
Sep 16, 2021
Primary completionActual
Mar 13, 2024
CompletionActual
Mar 13, 2024
Last update
Feb 10, 2025
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 Feb 10, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06817187
Responsible party
Sponsor
First posted
Feb 10, 2025
Start date
Sep 16, 2021
Primary completion
Mar 13, 2024
Completion
Mar 13, 2024
Last update
Feb 10, 2025

Study contacts

Lin Du, Doctor
study chair · Beijing Zhifei Lvzhu Biopharmaceutical Co., Ltd

Oversight

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

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This study is completed, as verified in Jan 2025. You cannot join it, but the record below documents what was studied.

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