NCT00546572

Brief Summary

This study will evaluate the safety, tolerability and immunogenicity of study vaccines 13vPnC and 23vPS in older, healthy subjects who have previously received a dose of 23vPS at least 5 years ago. It will also evaluate the safety, tolerability and immunogenicity to a dose of 13vPnC 1 year after the initial dose of study vaccine.

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
938

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Nov 2007

Typical duration for phase_3

Geographic Reach
2 countries

58 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 18, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 19, 2007

Completed
13 days until next milestone

Study Start

First participant enrolled

November 1, 2007

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2010

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2010

Completed
11 months until next milestone

Results Posted

Study results publicly available

May 30, 2011

Completed
Last Updated

July 14, 2011

Status Verified

July 1, 2011

Enrollment Period

2.7 years

First QC Date

October 18, 2007

Results QC Date

April 29, 2011

Last Update Submit

July 12, 2011

Conditions

Outcome Measures

Primary Outcomes (2)

  • Pneumococcal OPA Geometric Mean Titers (GMTs) for the 12 Common Serotypes for 13vPnC Relative to 23vPS (Vax 1 / Year 0)

    Antibody geometric mean titers as measured by opsonophagocytic activity (OPA) assays for the 12 common serotypes (serotypes 1, 3, 4, 5, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F). Confidence intervals (CI) for the GMTs are back transformations of a CI based on the Student t distribution for the mean logarithm of the titers.

    1 month after Vax 1 / Year 0

  • Percentage of Participants Achieving a ≥ 4-fold Rise for Serotype 6A OPA Titer for 13vPnC Relative to 23vPS (Vax 1 / Year 0)

    OPA titer for the 6A serotype measured for at least a 4-fold increase from the prevaccination to postvaccination blood sample collection. Exact 2-sided CI (Clopper and Pearson) based upon the observed percentage of participants.

    Baseline, 1 month after Vax 1 / Year 0

Secondary Outcomes (4)

  • Pneumococcal OPA Geometric Mean Titer (GMT) for Serotype 6A for 13vPnC Relative to 23vPS (Vax 1 / Year 0)

    1 month after Vax 1 / Year 0

  • Pneumococcal OPA Geometric Mean Titers (GMTs) for the 13 Serotypes for 13vPnC / 13vPnC (Vax 2 / Year 1) Relative to 13vPnC (Vax 1 / Year 0)

    1 month after Vax 1 / Year 0, 1 month after Vax 2 / Year 1

  • Pneumococcal OPA Geometric Mean Titers (GMTs) for the 12 Common Serotypes for 13vPnC / 13vPnC (Vax 2 / Year 1) Relative to 23vPS (Vax 1 / Year 0)

    1 month after Vax 1 / Year 0, 1 month after Vax 2 / Year 1

  • Pneumococcal OPA Geometric Mean Titer (GMT) for Serotype 6A for 13vPnC / 13vPnC (Vax 2 / Year 1) Relative to 23vPS (Vax 1 / Year 0)

    1 month after Vax 1 / Year 0, 1 month after Vax 2 / Year 1

Other Outcomes (10)

  • Percentage of Participants Reporting Pre-specified Local Reactions Within 14 Days After Vaccination for 13vPnC and 23vPS (Vax 1 / Year 0)

    Days 1 through 14 / Year 0

  • Percentage of Participants Reporting Pre-specified Local Reactions Within 14 Days After Vaccination for 13vPnC (Vax 1 / Year 0) and 13vPnC / 13vPnC (Vax 2 / Year 1)

    Days 1 through 14 / Year 0, Days 1 through 14 / Year 1

  • Percentage of Participants Reporting Pre-specified Local Reactions Within 14 Days After Vaccination for 23vPS (Vax 1 / Year 0) and 13vPnC / 13vPnC (Vax 2 / Year 1)

    Days 1 through 14 / Year 0, Days 1 through 14 / Year 1

  • +7 more other outcomes

Study Arms (2)

1

EXPERIMENTAL

Receives 13vPnC at year 0 and 13vPnC at year 1

Biological: 13 valent Pneumococcal Conjugate Vaccine

2

ACTIVE COMPARATOR

Receives 23vPS at year 0 and 13vPnC at year 1

Biological: 23vPS

Interventions

0.5-mL dose 13vPnC will be administered into the deltoid muscle at year 0 and year 1

1
23vPSBIOLOGICAL

0.5-mL dose 23vPS will be administered into the deltoid muscle at year 0 and 0.5-mL dose 13vPnC will be administered into the deltoid muscle at year 1

2

Eligibility Criteria

Age70 Years+
Sexall
Healthy VolunteersYes
Age GroupsOlder Adult (65+)

You may qualify if:

  • Male or Female aged 70 years or older.
  • Documented vaccination with 1 dose of 23vPS at least 5 years previous.
  • Healthy.

You may not qualify if:

  • Receipt of more than one dose of 23vPS prior to enrollment.
  • History of severe adverse reaction to a vaccine.
  • Immunodeficiency.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (58)

Pfizer Investigational Site

Mobile, Alabama, 36608, United States

Location

Pfizer Investigational Site

Mesa, Arizona, 85203, United States

Location

Pfizer Investigational Site

Mesa, Arizona, 85213, United States

Location

Pfizer Investigational Site

Fountain Valley, California, 92708, United States

Location

Pfizer Investigational Site

Denver, Colorado, 80262, United States

Location

Pfizer Investigational Site

Waterbury, Connecticut, 06708, United States

Location

Pfizer Investigational Site

Clearwater, Florida, 33761, United States

Location

Pfizer Investigational Site

Coral Gables, Florida, 33134, United States

Location

Pfizer Investigational Site

Jacksonville, Florida, 32216, United States

Location

Pfizer Investigational Site

Pinellas Park, Florida, 33781, United States

Location

Pfizer Investigational Site

Tampa, Florida, 33614, United States

Location

Pfizer Investigational Site

Atlanta, Georgia, 30305, United States

Location

Pfizer Investigational Site

Atlanta, Georgia, 30328, United States

Location

Pfizer Investigational Site

Stockbridge, Georgia, 30328, United States

Location

Pfizer Investigational Site

Shawnee Mission, Kansas, 66128, United States

Location

Pfizer Investigational Site

Lexington, Kentucky, 40536, United States

Location

Pfizer Investigational Site

Baltimore, Maryland, 21209, United States

Location

Pfizer Investigational Site

Minneapolis, Minnesota, 55417, United States

Location

Pfizer Investigational Site

Rochester, Minnesota, 55905, United States

Location

Pfizer Investigational Site

St Louis, Missouri, 63104, United States

Location

Pfizer Investigational Site

St Louis, Missouri, 63141, United States

Location

Pfizer Investigational Site

Butte, Montana, 59701, United States

Location

Pfizer Investigational Site

Las Vegas, Nevada, 89146, United States

Location

Pfizer Investigational Site

Rochester, New York, 14642, United States

Location

Pfizer Investigational Site

Cary, North Carolina, 27511, United States

Location

Pfizer Investigational Site

Charlotte, North Carolina, 28209, United States

Location

Pfizer Investigational Site

Durham, North Carolina, 27705, United States

Location

Pfizer Investigational Site

Durham, North Carolina, 27710, United States

Location

Pfizer Investigational Site

Hickory, North Carolina, 28601, United States

Location

Pfizer Investigational Site

Raleigh, North Carolina, 27612, United States

Location

Pfizer Investigational Site

Salisbury, North Carolina, 28144, United States

Location

Pfizer Investigational Site

Winston-Salem, North Carolina, 27103, United States

Location

Pfizer Investigational Site

Fargo, North Dakota, 58103, United States

Location

Pfizer Investigational Site

Cincinnati, Ohio, 45229, United States

Location

Pfizer Investigational Site

Cincinnati, Ohio, 45236, United States

Location

Pfizer Investigational Site

Cleveland, Ohio, 44195, United States

Location

Pfizer Investigational Site

Corvallis, Oregon, 97330, United States

Location

Pfizer Investigational Site

Eugene, Oregon, 97401, United States

Location

Pfizer Investigational Site

Carnegie, Pennsylvania, 15106, United States

Location

Pfizer Investigational Site

Downington, Pennsylvania, 19335, United States

Location

Pfizer Investigational Site

Grove City, Pennsylvania, 16127, United States

Location

Pfizer Investigational Site

Penndel, Pennsylvania, 19047, United States

Location

Pfizer Investigational Site

Pittsburgh, Pennsylvania, 15241, United States

Location

Pfizer Investigational Site

Upper Saint Clair, Pennsylvania, 15241, United States

Location

Pfizer Investigational Site

Greer, South Carolina, 29651, United States

Location

Pfizer Investigational Site

Mt. Pleasant, South Carolina, 29464, United States

Location

Pfizer Investigational Site

Bristol, Tennessee, 37620, United States

Location

Pfizer Investigational Site

Nashville, Tennessee, 37232, United States

Location

Pfizer Investigational Site

Austin, Texas, 78705, United States

Location

Pfizer Investigational Site

Norfolk, Virginia, 23507, United States

Location

Pfizer Investigational Site

Seattle, Washington, 998101, United States

Location

Pfizer Investigational Site

Arlöv, 23234, Sweden

Location

Pfizer Investigational Site

Boden, 96131, Sweden

Location

Pfizer Investigational Site

Degeberga, 29731, Sweden

Location

Pfizer Investigational Site

Gothenburg, 40014, Sweden

Location

Pfizer Investigational Site

Malmo, 21120, Sweden

Location

Pfizer Investigational Site

Umeå, 90736, Sweden

Location

Pfizer Investigational Site

Uppsala, 75185, Sweden

Location

Related Links

MeSH Terms

Conditions

Pneumococcal Infections

Condition Hierarchy (Ancestors)

Streptococcal InfectionsGram-Positive Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfections

Results Point of Contact

Title
Pfizer ClinicalTrials.gov Call Center
Organization
Pfizer, Inc.

Study Officials

  • Pfizer CT.gov Call Center

    Pfizer

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY

Study Record Dates

First Submitted

October 18, 2007

First Posted

October 19, 2007

Study Start

November 1, 2007

Primary Completion

July 1, 2010

Study Completion

July 1, 2010

Last Updated

July 14, 2011

Results First Posted

May 30, 2011

Record last verified: 2011-07

Locations