Study to Evaluate a 13-valent Pneumococcal Conjugate Vaccine in Elderly Subjects

August 4, 2010 updated by: Wyeth is now a wholly owned subsidiary of Pfizer

A Randomized, Open Label, Controlled Phase II Study to Evaluate Safety, Tolerability and Immunogenicity After Two Different 13-Valent Pneumococcal Conjugate Vaccine Formulations in Elderly Subjects Aged 65 Years and Older Who Are Naive to Previous 23vPS Immunization

There is evidence that aluminum phosphate (AlPO4) contained as an adjuvant in conjugate vaccines enhances the immune response in infants. There is no data so far evaluating whether this also applies to adults. The objective of this study is to compare the immune response of 2 different 13-valent pneumococcal conjugate (13vPnC) formulations with and without AlPO4 to select a formulation and to compare the immune response to the chosen 13vPnC formulation relative to the immune response to 23-valent pneumococcal polysaccharide vaccine (23vPS).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

915

Phase

  • Phase 2

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

65 years and older (Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male and female adults 65 years of age and older.
  • Determined by medical history, physical examination, and clinical judgment to be eligible for the study.
  • Expected to be available for the duration of the trial (up to approximately 13 months).

Exclusion Criteria:

  • Received previous immunization with 23vPS.
  • Serious chronic disorders including metastatic malignancy
  • Known or suspected hypersensitivity to any vaccine or vaccine components

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: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Demonstrate 13vPnC without AlPO4 is as immunogenic as 13vPnC with AlPO4 to select a 13vPnC formulation.

Secondary Outcome Measures

Outcome Measure
Demonstrate that the selected 13vPnC formulation is as immunogenic as 23vPS (by IgG).
Safety and tolerability of the selected 13vPnC formulation given 12 months after a previous dose of the selected 13vPnC.

Collaborators and Investigators

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

Sponsor

Wyeth is now a wholly owned subsidiary of 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

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

September 1, 2005

Primary Completion (Actual)

February 1, 2007

Study Completion (Actual)

February 1, 2007

Study Registration Dates

First Submitted

December 21, 2005

First Submitted That Met QC Criteria

December 21, 2005

First Posted (Estimate)

December 23, 2005

Study Record Updates

Last Update Posted (Estimate)

August 5, 2010

Last Update Submitted That Met QC Criteria

August 4, 2010

Last Verified

August 1, 2010

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 6115A1-500

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.

Clinical Trials on Vaccines, Pneumococcal Conjugate Vaccine

Clinical Trials on 13-valent Pneumococcal Conjugate Vaccine

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Mozambique

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe