A Study Evaluating 13-Valent Pneumococcal Conjugate Vaccine (13vPnC) In Healthy Infants In China

June 1, 2026 updated by: Pfizer

A Phase 3, Randomized, Active-controlled, Trial Evaluating The Safety, Tolerability, And Immunogenicity Of A 13vpnc Compared With A 7vpnc In Healthy Infants In China

This study is primarily designed to evaluate the IgG immune responses to the 13 pneumococcal serotypes induced by 13vPnC compared with the immune responses induced by 7vPnC when measured 1 month after the infant series, and to evaluate the acceptability of the safety profile of 13vPnC as measured by the incidence rates of local reactions, systemic events and adverse events.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
1674

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Jiangsu
      • Guanyun County,, Jiangsu, China, 222200
        • Jiangsu Province Guanyun County Center for Disease prevention and Control
      • Huaian City, Jiangsu, China, 223100
        • Jiangsu Province Hongze County Center for Disease prevention and Control
      • Huaian City,, Jiangsu, China, 223300
        • Jiangsu Province Huaiyin District Center for Disease prevention and Control
      • Lianshui County, Jiangsu, China, 223400
        • Jiangsu Province Lianshui County Center for Disease prevention and Control

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

1 month to 2 months (Child)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  1. Aged 42 to 77 days (approximately 2 months) at the time of enrollment.
  2. Healthy infant as determined by medical history, physical examination, and judgment of the investigator.

Exclusion Criteria:

  1. Previous vaccination with licensed or investigational pneumococcal vaccine.
  2. A previous anaphylactic reaction to any vaccine or vaccine-related component.
  3. Contraindication to vaccination with pneumococcal vaccines.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: 7vPnC (3-, 4-, 5-, 12-Month)
Biological: 7-valent Pneumococcal Conjugate Vaccine
suspension in prefilled syringe for intramuscular injection; 0.5 mL; one dose at 3-Month Visit, 4-Month Visit, 5-Month Visit, and 12-Month Visit, respectively
Other Names:
  • 7vPnC
Experimental: 13vPnC (3-, 4-, 5-, 12-Month)
Biological: 13-valent Pnumococcal Conjugate vaccine
suspension in prefilled syringe for intramuscular injection; 0.5 mL; one dose at 3-Month Visit, 4-Month Visit, 5-Month Visit, and 12-Month Visit, respectively
Other Names:
  • 13vPnC
Biological: 13-valent Pnumococcal Conjugate vaccine
suspension in prefilled syringe for intramuscular injection; 0.5 mL; one dose at 2-Month Visit, 4-Month Visit, 6-Month Visit, and 12-Month Visit, respectively
Other Names:
  • 13vPnC
Biological: 13-valent Pnumococcal Conjugate vaccine
suspension in prefilled syringe for intramuscular injection; 0.5 mL; one dose at 3-Month Visit, 5-Month Visit, and 12-Month Visit, respectively
Other Names:
  • 13vPnC
Experimental: 13vPnC (2-, 4-, 6-, 12-Month)
Biological: 13-valent Pnumococcal Conjugate vaccine
suspension in prefilled syringe for intramuscular injection; 0.5 mL; one dose at 3-Month Visit, 4-Month Visit, 5-Month Visit, and 12-Month Visit, respectively
Other Names:
  • 13vPnC
Biological: 13-valent Pnumococcal Conjugate vaccine
suspension in prefilled syringe for intramuscular injection; 0.5 mL; one dose at 2-Month Visit, 4-Month Visit, 6-Month Visit, and 12-Month Visit, respectively
Other Names:
  • 13vPnC
Biological: 13-valent Pnumococcal Conjugate vaccine
suspension in prefilled syringe for intramuscular injection; 0.5 mL; one dose at 3-Month Visit, 5-Month Visit, and 12-Month Visit, respectively
Other Names:
  • 13vPnC
Experimental: 13vPnC (3-, 5-, 12-Month)
Biological: 13-valent Pnumococcal Conjugate vaccine
suspension in prefilled syringe for intramuscular injection; 0.5 mL; one dose at 3-Month Visit, 4-Month Visit, 5-Month Visit, and 12-Month Visit, respectively
Other Names:
  • 13vPnC
Biological: 13-valent Pnumococcal Conjugate vaccine
suspension in prefilled syringe for intramuscular injection; 0.5 mL; one dose at 2-Month Visit, 4-Month Visit, 6-Month Visit, and 12-Month Visit, respectively
Other Names:
  • 13vPnC
Biological: 13-valent Pnumococcal Conjugate vaccine
suspension in prefilled syringe for intramuscular injection; 0.5 mL; one dose at 3-Month Visit, 5-Month Visit, and 12-Month Visit, respectively
Other Names:
  • 13vPnC

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Percentage of Participants Achieving Serotype-specific Pneumococcal IgG Antibody Level ≥0.35 mcg/mL 1 Month After the Infant Series in Group 1 And Group 2.
Time Frame: 1 month after the infant series (6 Months of age)
1 month after the infant series (6 Months of age)
Percentage of Participants Achieving Serotype-specific Pneumococcal IgG Antibody Level ≥0.35 mcg/mL 1 Month After the Infant Series in Group 3.
Time Frame: 1 month after the infant series (7 Months of age)
1 month after the infant series (7 Months of age)
Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody 1 Month After the Infant Series in Group 1 and Group 2.
Time Frame: 1 month after the infant series (6 Months of age)
1 month after the infant series (6 Months of age)
Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody 1 Month After the Infant Series in Group 3.
Time Frame: 1 month after the infant series (7 Months of age)
1 month after the infant series (7 Months of age)
Percentage of Participants Reporting Adverse Events in Group 1 and Group 2.
Time Frame: Approximately 16 months from the participation into the study to the end of study
Approximately 16 months from the participation into the study to the end of study
Percentage of Participants Reporting Adverse Events in Group 3 and Group 4.
Time Frame: Approximately 16 months from the participation into study to the end of study
Approximately 16 months from the participation into study to the end of study
Percentage of Participants Reporting Pre-Specified Local Reactions In the 7 Days After Each Pneumococcal Vaccination in Group 1 and Group 2.
Time Frame: Seven days after each pneumococcal vaccination dose within the period up to 12 months
Seven days after each pneumococcal vaccination dose within the period up to 12 months
Percentage of Participants Reporting Pre-Specified Local Reactions In the 7 Days After Each Pneumococcal Vaccination in Group 3 and Group 4.
Time Frame: Seven days after each pneumococcal vaccination dose within the period up to 12 months
Seven days after each pneumococcal vaccination dose within the period up to 12 months
Percentage of Participants Reporting Pre-Specified Systemic Events (Including The Use Of Antipyretic Medication) In the 7 Days After Each Pneumococcal Vaccination in Group 1 and Group 2.
Time Frame: Seven days after each pneumococcal vaccination dose within the period up to 12 months
Seven days after each pneumococcal vaccination dose within the period up to 12 months
Percentage of Participants Reporting Pre-Specified Systemic Events (Including The Use Of Antipyretic Medication) In the 7 Days After Each Pneumococcal Vaccination in Group 3 and Group 4.
Time Frame: Seven days after each pneumococcal vaccination dose within the period up to 12 months
Seven days after each pneumococcal vaccination dose within the period up to 12 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Percentage of Participants In A Subset Achieving Serotype-specific Opsonophagocytic Activity (OPA) Titer ≥ Lower Limit Of Quantitation (LLOQ) 1 Month After the Infant Series in Group 1 And Group 2.
Time Frame: 1 month after the infant series (6 Months of age)
1 month after the infant series (6 Months of age)
Percentage of Participants In A Subset Achieving Serotype-specific Opsonophagocytic Activity (OPA) Titer ≥ Lower Limit Of Quantitation (LLOQ) 1 Month After the Infant Series in Group 3.
Time Frame: 1 month after the infant series (7 Months of age)
1 month after the infant series (7 Months of age)
Serotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titer (GMT) 1 Month After the Infant Series in Group 1 and Group 2.
Time Frame: 1 month after the infant series (6 Months of age)
1 month after the infant series (6 Months of age)
Serotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titer (GMT) 1 Month After the Infant Series in Group 3.
Time Frame: 1 month after the infant series (7 Months of age)
1 month after the infant series (7 Months of age)
Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody 1 Month After the Toddler Dose in Group 2 and Group 3.
Time Frame: 1 month after the toddler dose (13 Months of age)
1 month after the toddler dose (13 Months of age)
Percentage of Participants In A Subset Achieving Serotype-specific Opsonophagocytic Activity (OPA) Titer ≥ Lower Limit Of Quantitation (LLOQ) 1 Month After the Toddler Dose in Group 2 and Group 3.
Time Frame: 1 month after the toddler dose (13 Months of age)
1 month after the toddler dose (13 Months of age)
Serotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titer (GMT) 1 Month After the Toddler Dose in Group 2 and Group 3.
Time Frame: 1 month after the toddler dose (13 Months of age)
1 month after the toddler dose (13 Months of age)
Percentage of Participants Achieving Serotype-specific Pneumococcal IgG Antibody Level ≥0.35 mcg/mL 1 Month After the Infant Series in Group 4.
Time Frame: 1 month after the infant series (6 Months of age)
1 month after the infant series (6 Months of age)
Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody 1 Month After the Infant Series in Group 4.
Time Frame: 1 month after the infant series (6 Months of age)
1 month after the infant series (6 Months of age)
Geometric Mean Concentration (GMC) for Serotype-specific Pneumococcal Immunoglobulin G (IgG) Antibody 1 Month After the Toddler Dose in Group 4.
Time Frame: 1 month after the toddler dose (13 Months of age)
1 month after the toddler dose (13 Months of age)
Percentage of Participants In A Subset Achieving Serotype-specific Opsonophagocytic Activity (OPA) Titer ≥ Lower Limit Of Quantitation (LLOQ) 1 Month After the Infant Series in Group 4.
Time Frame: 1 month after the infant series (6 Months of age)
1 month after the infant series (6 Months of age)
Percentage of Participants In A Subset Achieving Serotype-specific Opsonophagocytic Activity (OPA) Titer ≥ Lower Limit Of Quantitation (LLOQ) 1 Month After the Toddler Dose in Group 4.
Time Frame: 1 month after the toddler dose (13 Months of age)
1 month after the toddler dose (13 Months of age)
Serotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titer (GMT) 1 Month After the Infant Series in Group 4.
Time Frame: 1 month after the infant series (6 Months of age)
1 month after the infant series (6 Months of age)
Serotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titer (GMT) 1 Month After the Toddler Dose in Group 4.
Time Frame: 1 month after the toddler dose (13 Months of age)
1 month after the toddler dose (13 Months of age)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Pfizer

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Pfizer CT.gov Call Center, Pfizer

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 1, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 1, 2014

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2014

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 11, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 21, 2012

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 25, 2012

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 2, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 1, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • B1851015
  • 6096A1-3019 (Other Identifier: Alias Study Number)
  • 2009-017123-26 (EudraCT Number)
  • 2014-004953-14 (EudraCT Number)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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