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Study Comparing Prevenar® to Pneumo 23 in Reducing Carriage in Children

Long-Term Efficacy of Pneumococcal Conjugate 7-Valent Vaccine Versus Plain Polisaccharide Pneumococcus Vacine in Reducing Pneumococcal Nasopharyngeal Carriage of Children.

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00580684
Enrollment
101
Registered
2007-12-27
Start date
2003-09-30
Completion date
2004-08-31
Last updated
2007-12-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Vaccines, Pneumococcal, Vaccines, Pneumococcal Conjugate Vaccine

Keywords

pneumococcus conjugated vaccine 7 valent

Brief summary

To compare the ability of Prevnar® to Pneumo® 23 in reducing and preventing nasopharyngeal carriage of vaccine-type pneumococci one year after respective immunization. To evaluate the rate of penicillin-resistant pneumococci in nasopharyngeal carriage.

Detailed description

This study will require 6 months to be completed (3 months for nasopharyngeal samples collection; 3 months dor analysis). Each child will participate for a 1 day period.

Interventions

BIOLOGICALpneumococcus conjugate vaccine 7 valent to reduce carriage

plain polisacaride vaccine 23 valent to reduce carriage

Sponsors

Wyeth is now a wholly owned subsidiary of Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
2 Years to 9 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy children between * 2 to 9 years old. * No history of antibiotic use prior 1 month of enrollment * No history of invasive pneumococcal disease

Design outcomes

Primary

MeasureTime frame
To compare the ability of Prevnar® to Pneumo® 23 in reducing and preventing nasopharyngeal carriage of vaccine-type pneumococci one year after respective immunization.12 months

Secondary

MeasureTime frame
To evaluate the rate of penicillin-resistant pneumococci in nasopharyngeal carriage.12 months

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026