Pneumococcal Conjugate Vaccine With Pneumococcal Polysaccharide Vaccine and Tetanus/Diphtheria Vaccine

Pneumococcal Conjugate Vaccine (Prevnar; Wyeth) With Pneumococcal Polysaccharide Vaccine (23-valent) and Tetanus/Diphtheria Vaccine

The purpose of this study is to learn whether or not giving a tetanus/diphtheria vaccination ("tetanus shot") before giving pneumococcal vaccine makes the pneumococcal vaccine more effective without causing too many side effects.

Study Overview

Detailed Description

The only vaccine licensed in the United States for protecting adults against pneumococcal disease (PPV23) protects against invasive disease in observational studies but has generally been poorly effective against pneumonia or all-cause mortality in randomized clinical trials. Another vaccine containing seven polysaccharide antigens conjugated to diphtheria toxoid (PCV7) is licensed for children and under investigation in adults.

In this pilot study, we are comparing the safety and immunogenicity of three immunization schedules in adults:

  • Td vaccine, 2-week interval, PCV7, 4-month interval, PPV23
  • PCV7, 4-month interval, PPV23
  • PPV23

We aim to:

  • compare the safety profiles of pneumococcal vaccines given on each of the three schedules
  • compare serotype-specific ELISA antibody response to pneumococcal antigens given on each of the three schedules
  • compare functional serotype-specific antibody responses to pneumococcal antigens given on each of the three schedules
  • study the influence of diphtheria antibody levels at the time of pneumococcal conjugate vaccine administration on the magnitude of the immune response to pneumococcal antigens

Study Type

Interventional

Enrollment

30

Phase

  • Phase 1

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

    • Georgia
      • Atlanta, Georgia, United States, 30322
        • Emory University School of Medicine

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

Ages Eligible for Study

50 years to 64 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Exclusion Criteria:

  • Participation in any other investigational clinical trials except purely observational studies within 4 weeks prior to study start
  • Any vaccination within 2 weeks prior to first study vaccine
  • Evidence of systemic or local infection within one week prior to first study vaccine
  • HIV infection
  • Renal failure
  • Receipt of a pneumococcal or Td vaccine within 5 years
  • Current receipt of therapy for neoplastic disease
  • Current receipt of immunosuppressive therapy
  • Terminal illness withlife expectancy less than 3 months

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: Factorial Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
ELISA for S. pneumoniae antibody 2 months after receiving PPV23
Functional S. pneumoniae antibody 2 months after receiving PPV23

Secondary Outcome Measures

Outcome Measure
Incidence of adverse events following vaccination from entry to 2 months after receiving last vaccination

Collaborators and Investigators

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

Collaborators

Investigators

  • Principal Investigator: Harry L Keyserling, MD, Emory University

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

January 1, 2004

Study Completion

March 1, 2005

Study Registration Dates

First Submitted

September 9, 2005

First Submitted That Met QC Criteria

September 9, 2005

First Posted (Estimate)

September 14, 2005

Study Record Updates

Last Update Posted (Estimate)

March 14, 2012

Last Update Submitted That Met QC Criteria

March 13, 2012

Last Verified

March 1, 2012

More Information

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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