Study Evaluating the Impact of the 13-valent Pneumococcal Conjugate Vaccine (13vPnC) in Alaskan Native Children.

March 13, 2012 updated by: Pfizer

A Phase 3, Open Label Trial Evaluating the Safety, Immunogenicity and Impact of 13-valent Pneumococcal Conjugate Vaccine in Alaskan Native Children.

This study is to evaluate the safety, immunogenicity and impact of 13-valent Pneumococcal conjugate vaccine in Alaskan Native Children.

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.
373

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

  • United States
    • Alaska
      • Akiak, Alaska, United States, 99552
        • Pfizer Investigational Site
      • Bethel, Alaska, United States, 99559
        • Pfizer Investigational Site
      • Chefornak, Alaska, United States, 99561
        • Pfizer Investigational Site
      • Chevak, Alaska, United States, 99563
        • Pfizer Investigational Site
      • Eek, Alaska, United States, 99578
        • Pfizer Investigational Site
      • Emmonak, Alaska, United States, 99581
        • Pfizer Investigational Site
      • Hooper Bay, Alaska, United States, 99604
        • Pfizer Investigational Site
      • Kasigluk, Alaska, United States, 99609
        • Pfizer Investigational Site
      • Kongiganak, Alaska, United States, 99545
        • Pfizer Investigational Site
      • Kotlik, Alaska, United States, 99620
        • Pfizer Investigational Site
      • Kwethluk, Alaska, United States, 99621
        • Pfizer Investigational Site
      • Kwigillingok, Alaska, United States, 99622
        • Pfizer Investigational Site
      • Mtn. Village, Alaska, United States, 99632
        • Pfizer Investigational Site
      • Napaskiak, Alaska, United States, 99559
        • Pfizer Investigational Site
      • Newtok, Alaska, United States, 99559
        • Pfizer Investigational Site
      • Nunapitchuk, Alaska, United States, 99641
        • Pfizer Investigational Site
      • Russian Mission, Alaska, United States, 99657
        • Pfizer Investigational Site
      • Scammon Bay, Alaska, United States, 99662
        • Pfizer Investigational Site
      • Toksook Bay, Alaska, United States, 99637
        • Pfizer Investigational Site
      • Tuluksak, Alaska, United States, 99679
        • Pfizer Investigational Site
      • Upper Kalskag, Alaska, United States, 99607
        • Pfizer Investigational Site

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 5 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male or female infants 6 weeks to < 5years of age in good health, available for the entire study period and reachable by phone, parents able to complete all relevant study procedures.
  • Infants who have received Prevnar are eligible to participate, but this is not required.
  • Infants participating in the blood draws must live in a specific identified area (Yukon Kuskokwim Delta region)

Exclusion Criteria:

  • Contraindication to vaccination with pneumococcal vaccine or allergic reaction to any vaccines or vaccine related components, immune deficiency, bleeding disorder or major known congenital malformation.

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: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

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.
Experimental: Group1
Subjects 6 weeks to <10 months of age with 0 prior dose of Prevnar.
Biological: 13-valent Pneumococcal Conjugate Vaccine
4 doses of 13vPnC (0.5ml, IM) will be administered. (3 doses infant series, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
3 doses of 13vPnC (0.5ml, IM) will be administered. (2 doses for infant series catch-up, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
2 doses of 13vPnC (0.5ml, IM) will be administered. (1 dose infant series catch-up, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
2 doses of 13vPnC (0.5ml, IM) will be administered. (2 catch-up dose(s) greater than 60 days apart )
Biological: 13-valent Pneumococcal Conjugate Vaccine
1 dose of 13vPnC (0.5ml, IM) will be administered. (1 catch-up dose)
Experimental: Group 2
Subjects <12 months of age with 1 prior dose of Prevnar.
Biological: 13-valent Pneumococcal Conjugate Vaccine
4 doses of 13vPnC (0.5ml, IM) will be administered. (3 doses infant series, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
3 doses of 13vPnC (0.5ml, IM) will be administered. (2 doses for infant series catch-up, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
2 doses of 13vPnC (0.5ml, IM) will be administered. (1 dose infant series catch-up, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
2 doses of 13vPnC (0.5ml, IM) will be administered. (2 catch-up dose(s) greater than 60 days apart )
Biological: 13-valent Pneumococcal Conjugate Vaccine
1 dose of 13vPnC (0.5ml, IM) will be administered. (1 catch-up dose)
Experimental: Group 3
Subjects <12 months of age with 2 prior doses of Prevnar.
Biological: 13-valent Pneumococcal Conjugate Vaccine
4 doses of 13vPnC (0.5ml, IM) will be administered. (3 doses infant series, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
3 doses of 13vPnC (0.5ml, IM) will be administered. (2 doses for infant series catch-up, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
2 doses of 13vPnC (0.5ml, IM) will be administered. (1 dose infant series catch-up, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
2 doses of 13vPnC (0.5ml, IM) will be administered. (2 catch-up dose(s) greater than 60 days apart )
Biological: 13-valent Pneumococcal Conjugate Vaccine
1 dose of 13vPnC (0.5ml, IM) will be administered. (1 catch-up dose)
Experimental: Group 4
Subjects ≥12 months to <2 years of age.
Biological: 13-valent Pneumococcal Conjugate Vaccine
4 doses of 13vPnC (0.5ml, IM) will be administered. (3 doses infant series, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
3 doses of 13vPnC (0.5ml, IM) will be administered. (2 doses for infant series catch-up, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
2 doses of 13vPnC (0.5ml, IM) will be administered. (1 dose infant series catch-up, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
2 doses of 13vPnC (0.5ml, IM) will be administered. (2 catch-up dose(s) greater than 60 days apart )
Biological: 13-valent Pneumococcal Conjugate Vaccine
1 dose of 13vPnC (0.5ml, IM) will be administered. (1 catch-up dose)
Experimental: Group 5
Subjects ≥2 years to <5 years of age
Biological: 13-valent Pneumococcal Conjugate Vaccine
4 doses of 13vPnC (0.5ml, IM) will be administered. (3 doses infant series, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
3 doses of 13vPnC (0.5ml, IM) will be administered. (2 doses for infant series catch-up, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
2 doses of 13vPnC (0.5ml, IM) will be administered. (1 dose infant series catch-up, and 1 toddler dose)
Biological: 13-valent Pneumococcal Conjugate Vaccine
2 doses of 13vPnC (0.5ml, IM) will be administered. (2 catch-up dose(s) greater than 60 days apart )
Biological: 13-valent Pneumococcal Conjugate Vaccine
1 dose of 13vPnC (0.5ml, IM) will be administered. (1 catch-up dose)

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
Measure Description
Time Frame
Percentage of Participants Achieving Serotype-Specific Pneumococcal Immunoglobulin G (IgG) Antibody Level ≥0.35 Micrograms Per Milliliter (Mcg/mL) 1 Month After the Infant Series
Time Frame: 28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Percentage of participants in 13vPnC Groups 1, 2 and 3 achieving predefined antibody threshold ≥0.35 mcg/mL along with the corresponding 95% confidence interval (CI) for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. Exact 2-sided CI based upon the observed proportion of participants.
28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Percentage of Participants Achieving Serotype-Specific Pneumococcal IgG Antibody Level ≥0.35 Mcg/mL 1 Month After the Toddler Dose
Time Frame: 28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, and after vaccination 2 for Group 3.
Percentage of participants in 13vPnC Groups 1, 2, and 3 achieving predefined antibody threshold ≥0.35 mcg/mL along with the corresponding 95% CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. Exact 2-sided CI based upon the observed proportion of participants.
28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, and after vaccination 2 for Group 3.
Percentage of Participants Achieving Serotype-specific Pneumococcal IgG Antibody Level ≥0.35 Mcg/mL 1 Month After the Relevant Catch-Up Dose
Time Frame: 28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
Percentage of participants in 13vPnC Groups 4 and 5 achieving predefined antibody threshold ≥0.35 mcg/mL along with the corresponding 95% CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. Exact 2-sided CI based upon the observed proportion of participants.
28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.

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
Measure Description
Time Frame
Percentage of Participants Achieving Serum IgG Antibody Level ≥0.35 Mcg/mL Prior to Vaccination With 13vPnC (Groups 4 and 5 Only)
Time Frame: 28 to 56 days before vaccination 2 for Group 4, and before the single vaccination in Group 5.
Percentage of participants in 13vPnC Groups 4 and 5 achieving predefined antibody threshold ≥0.35 mcg/mL along with the corresponding 95% CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. Exact 2-sided CI based upon the observed proportion of participants.
28 to 56 days before vaccination 2 for Group 4, and before the single vaccination in Group 5.
Percentage of Participants Achieving Serotype-specific Pneumococcal IgG Antibody Level ≥1.0 Mcg/mL 1 Month After the Infant Series
Time Frame: 28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Percentage of participants in 13vPnC Groups 1, 2, and 3 achieving predefined antibody threshold ≥1.0 mcg/mL along with the corresponding 95% CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. Exact 2-sided CI based upon the observed proportion of participants.
28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Percentage of Participants Achieving Serotype-specific Pneumococcal IgG Antibody Level ≥1.0 Mcg/mL 1 Month After the Toddler Dose
Time Frame: 28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, and after vaccination 2 for Group 3.
Percentage of participants in 13vPnC Groups 1, 2, and 3 achieving predefined antibody threshold ≥1.0 mcg/mL along with the corresponding 95% CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. Exact 2-sided CI based upon the observed proportion of participants.
28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, and after vaccination 2 for Group 3.
Percentage of Participants Achieving Serotype-specific Pneumococcal IgG Antibody Level ≥1.0 Mcg/mL 1 Month After the Relevant Catch-up Dose
Time Frame: 28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
Percentage of participants in 13vPnC Groups 4 and 5 achieving predefined antibody threshold ≥1.0 mcg/mL along with the corresponding 95% CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. Exact 2-sided CI based upon the observed proportion of participants.
28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
Percentage of Participants Reporting Pre-Specified Local Reactions: Catch-up Dose 1
Time Frame: Day 1 through Day 7 after vaccination 1 for Group 4 and after the single vaccination in Group 5.
Local reactions were reported by the parent/legal guardian using a diary card. Tenderness was scaled as Any (tenderness present); Significant (present and interfered with limb movement). Redness and swelling were scaled as Any (redness or swelling present); Mild (0.5 centimeters [cm] to 2.0 cm); Moderate (2.5 to 7.0 cm); Severe (> 7.0 cm). Participants may have been represented in more than 1 category.
Day 1 through Day 7 after vaccination 1 for Group 4 and after the single vaccination in Group 5.
Percentage of Participants Reporting Pre-Specified Local Reactions: Catch-up Dose 2
Time Frame: Day 1 through Day 7 after vaccination 2 for Group 4
Local reactions were reported by the parent/legal guardian using a diary card. Tenderness was scaled as Any (tenderness present); Significant (present and interfered with limb movement). Redness and swelling were scaled as Any (redness or swelling present); Mild (0.5 centimeters [cm] to 2.0 cm); Moderate (2.5 to 7.0 cm); Severe (> 7.0 cm). Participants may have been represented in more than 1 category.
Day 1 through Day 7 after vaccination 2 for Group 4
Percentage of Participants Reporting Pre-Specified Systemic Events: Catch-up Dose 1
Time Frame: Day 1 through Day 7 after vaccination 1 for Group 4 and after the single vaccination in Group 5.
Systemic events (any fever 38 degrees Celsius [C] or higher, decreased appetite, irritability, increased sleep, decreased sleep, hives [urticaria], and use of antipyretic medication) were reported using a diary card. Participants may have been represented in more than 1 category.
Day 1 through Day 7 after vaccination 1 for Group 4 and after the single vaccination in Group 5.
Percentage of Participants Reporting Pre-Specified Systemic Events: Catch-up Dose 2
Time Frame: Day 1 through Day 7 after vaccination 2 for Group 4
Systemic events (any fever 38 degrees C or higher, decreased appetite, irritability, increased sleep, decreased sleep, hives [urticaria], and use of antipyretic medication) were reported using a diary card. Participants may have been represented in more than 1 category.
Day 1 through Day 7 after vaccination 2 for Group 4

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of Cases of Invasive Pneumococcal Disease (IPD) in Participants Less Than 5 Years of Age Due to Any Serotype Contained in 13vPnC
Time Frame: Baseline to 6 months after last vaccination
In order to assess the impact of 13vPnC on the incidence of IPD in the Yukon Kuskokwim (YK) Delta region, the Centers for Disease Control and Prevention (CDC) Arctic Investigation Program (AIP) accessed IPD data through evaluation of ongoing statewide IPD surveillance in Alaska. The CDC's AIP followed IPD (including serotype and vaccination history) to show whether identified cases of IPD received Prevnar, 13vPnC, or both. These data were combined with statewide data and used to identify the overall trend in IPD in the YK Delta region after introduction of 13vPnC.
Baseline to 6 months after last vaccination
Percentage of Participants Achieving Serotype-Specific Pneumococcal IgG Antibody Level ≥0.15 Mcg/mL 1 Month After the Infant Series
Time Frame: 28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Percentage of participants in 13vPnC Groups 1, 2, and 3 achieving predefined antibody threshold ≥0.15 mcg/mL along with the corresponding 95% CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. Exact 2-sided CI based upon the observed proportion of participants.
28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Percentage of Participants Achieving Serotype-specific Pneumococcal IgG Antibody Level ≥0.15 Mcg/mL 1 Month After the Toddler Dose
Time Frame: 28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, and after vaccination 2 for Group 3.
Percentage of participants in 13vPnC Groups 1, 2, and 3 achieving predefined antibody threshold ≥0.15 mcg/mL along with the corresponding 95% CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. Exact 2-sided CI based upon the observed proportion of participants.
28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, and after vaccination 2 for Group 3.
Percentage of Participants Achieving Serotype-specific Pneumococcal IgG Antibody Level ≥0.15 Mcg/mL 1 Month After the Relevant Catch-up Dose
Time Frame: 28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
Percentage of participants in 13vPnC Groups 4 and 5 achieving predefined antibody threshold ≥0.15 mcg/mL along with the corresponding 95% CI for the 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. Exact 2-sided CI based upon the observed proportion of participants.
28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
Geometric Mean Concentration (GMC) for Serotype-Specific Pneumococcal IgG Antibodies 1 Month After the Infant Series
Time Frame: 28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Antibody GMCs (mcg/mL) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. GMC (13vPnC) with 2-sided 95% CIs were evaluated. CIs are back transformations of confidence levels based on Student t distribution for mean logarithm of concentrations. GMCs were calculated using all participants with available data for specified blood draw.
28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
GMC for Serotype-Specific Pneumococcal IgG Antibodies 1 Month After the Toddler Dose
Time Frame: 28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, after vaccination 2 for Group 3.
Antibody GMCs (mcg/mL) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A). GMC (13vPnC) with 2-sided 95% CIs were evaluated. CIs are back transformations of confidence levels based on Student t distribution for mean logarithm of concentrations. GMCs were calculated using all participants with available data for specified blood draw.
28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, after vaccination 2 for Group 3.
GMC for Serotype-specific Pneumococcal IgG Antibodies 1 Month After the Relevant Catch-up Dose
Time Frame: 28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
Antibody GMCs (mcg/mL) for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A) are presented. GMC (13vPnC) with 2-sided 95% CIs were evaluated. CIs are back transformations of confidence levels based on Student t distribution for mean logarithm of concentrations. GMCs were calculated using all participants with available data for specified blood draw.
28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
Percentage of Participants Achieving Opsonophagocytic Assay (OPA) Titers ≥Lower Limit of Quantitation (LLOQ) Measured 1 Month After the Infant Series
Time Frame: 28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Percentage of participants in 13vPnC Groups 1, 2, and 3 achieving OPA with 95% CI for serotypes 4, 6B, 9V, 14, 18C, 19F, 23F, 1, 3, 5, 6A, 7F, and 19A. Exact 2-sided CI based upon the observed proportion of participants. The LLOQ in titers for each serotype was: Pn001, 18; Pn003, 12; Pn004, 21; Pn005, 29; Pn06A, 37; Pn06B, 43, Pn7F, 210; Pn09V, 345; Pn014, 35; Pn18C, 31; Pn19A, 18; Pn19F, 48; and Pn23F, 13. Limit of detection (LOD) established as lowest titer possible in assay, which was 8. OPA titers below LLOQ set to 0.5*LOD for analysis.
28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Percentage of Participants Achieving OPA Titers ≥LLOQ Measured 1 Month After the Toddler Dose
Time Frame: 28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, and after vaccination 2 for Group 3.
Percentage of participants in 13vPnC Groups 1, 2 and 3 achieving OPA with 95% CI for serotypes 4, 6B, 9V, 14, 18C, 19F, 23F, 1, 3, 5, 6A, 7F, and 19A. Exact 2-sided CI based upon the observed proportion of participants. The LLOQ in titers for each serotype was: Pn001, 18; Pn003, 12; Pn004, 21; Pn005, 29; Pn06A, 37; Pn06B, 43, Pn7F, 210; Pn09V, 345; Pn014, 35; Pn18C, 31; Pn19A, 18; Pn19F, 48; and Pn23F, 13. Limit of detection (LOD) established as lowest titer possible in assay, which was 8. OPA titers below LLOQ set to 0.5*LOD for analysis.
28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, and after vaccination 2 for Group 3.
Percentage of Participants Achieving OPA Titers ≥LLOQ Measured 1 Month After the Relevant Catch-up Dose
Time Frame: 28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
Percentage of participants in 13vPnC Groups 4 and 5 achieving OPA with 95% CI for serotypes 4, 6B, 9V, 14, 18C, 19F, 23F, 1, 3, 5, 6A, 7F, and 19A. Exact 2-sided CI based upon the observed proportion of participants. The LLOQ in titers for each serotype was: Pn001, 18; Pn003, 12; Pn004, 21; Pn005, 29; Pn06A, 37; Pn06B, 43, Pn7F, 210; Pn09V, 345; Pn014, 35; Pn18C, 31; Pn19A, 18; Pn19F, 48; and Pn23F, 13. Limit of detection (LOD) established as lowest titer possible in assay, which was 8. OPA titers below LLOQ set to 0.5*LOD for analysis.
28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
Pneumococcal OPA Geometric Mean Titers (GMTs) 1 Month After the Infant Series
Time Frame: 28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Antibody geometric mean titers as measured by OPA assay for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A). GMTs were calculated using all participants with available data for the specified blood draw. CIs for the GMTs are back transformations of confidence levels based on the Student t distribution for the mean logarithm of the titers.
28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Pneumococcal OPA GMTs 1 Month After the Toddler Dose
Time Frame: 28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, after vaccination 2 for Group 3.
Antibody geometric mean titers as measured by OPA assay for 7 common pneumococcal serotypes (serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and 6 additional pneumococcal serotypes specific to 13vPnC (Serotypes 1, 3, 5, 6A, 7F, and 19A). GMTs were calculated using all subjects with available data for the specified blood draw. CIs for the GMTs are back transformations of confidence levels based on the Student t distribution for the mean logarithm of the titers.
28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, after vaccination 2 for Group 3.
Pneumococcal OPA GMTs 1 Month After the Relevant Catch-up Dose
Time Frame: 28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
Antibody geometric mean titers as measured by OPA assay for 13 pneumococcal serotypes (serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F). GMTs were calculated using all participants with available data for the specified blood draw. CIs for the GMTs are back transformations of confidence levels based on the Student t distribution for the mean logarithm of the titers.
28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
Correlation of OPA and IgG Values for Each 13vPnC Serotype 1 Month After the Infant Series
Time Frame: 28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
28 to 56 days after vaccination 3 for Group 1, after vaccination 2 for Group 2, and after vaccination 1 for Group 3.
Correlation of OPA and IgG Values for Each 13vPnC Serotype 1 Month After the Toddler Dose
Time Frame: 28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, and after vaccination 2 for Group 3.
28 to 56 days after vaccination 4 for Group 1, after vaccination 3 for Group 2, and after vaccination 2 for Group 3.
Correlation of OPA and IgG Values for Each 13vPnC Serotype 1 Month After the Relevant Catch-up Dose
Time Frame: 28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.
28 to 56 days after vaccination 2 for Group 4, and after the single vaccination in Group 5.

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

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.

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.
January 1, 2009

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.
September 1, 2010

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.
September 1, 2010

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).
August 27, 2008

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.
August 28, 2008

First Posted (Estimate)

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.
August 29, 2008

Study Record Updates

Last Update Posted (Estimate)

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.
March 15, 2012

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.
March 13, 2012

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.
March 1, 2012

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.
  • 6096A1-3010
  • B1851009

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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