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CompletedNCT00768833CarriageUpdated Aug 21, 2014

Study Evaluating the Nasopharyngeal Carriage in Healthy Children

An observational study in Healthy Subjects, sponsored by Pfizer. Completed at 1 site in Germany. Open to participants aged 3 Months to 4 Months, including healthy volunteers. Per ClinicalTrials.gov, last updated 2014-08-21.

Sponsored by Pfizer · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
242
Ages
3 Months to 4 Months
Sex
All
01

Study summary

The purpose of this study is to assess the prevalence of pneumococcal stereotypes in the nasopharynx of healthy children and to describe the changes of nasopharyngeal carriage at different ages over time.

02

Conditions studied

  • Healthy Subjects

Keywords

  • S.pneumoniae healthy subjects
  • Healthy subjects
03

In context

Lead sponsor

Pfizer is the lead sponsor of 3,331 studies on the registry; 148 are open to participants now.

Of its 600 completed or terminated interventional studies of FDA-regulated products, 391 (65%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
3 Months to 4 Months
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

community sample

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Main inclusion criteria:

  • Age at enrolment 3 to 4 month Main

Exclusion criteria

Exclusion Criteria:

  • Malformation or injury of the nasopharynx
  • Known or suspected immunodeficiency
  • Relevant immunosuppression
  • Use of antibiotics up to 10 days prior to study inclusion
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
242 participants (actual)
06

What researchers measure

Primary outcomes

  1. Number and frequency of S. pneumonia positive serotypes

    Time frame: 57 months

Secondary outcomes

  1. Changes in number and frequency of S. pneumonia positive children at different ages over time

    Time frame: 57 month

07

Study locations

1 site
  • Pfizer Investigational Site
    Offenbach, 63069, Germany
08

References and documents

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 21, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00768833
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Oct 8, 2008
Start date
Oct 2008
Primary completion
Aug 2014
Completion
Aug 2014
Last update
Aug 21, 2014

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2014. You cannot join it, but the record below documents what was studied.

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