French study tracks pneumococcal infections in kids after vaccine rollout
NCT ID NCT04664556
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is observing 2,500 children in France to understand how pneumococcal vaccines have changed the severity and types of pneumococcal infections. Researchers will look at which bacterial strains cause disease, how severe the infections are, and whether children were vaccinated. No new treatment or vaccine is being tested; the goal is to gather information to improve future prevention.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 2,500 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2010
- Expected to finish
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Jan 2030
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Children with invasive pneumococcal disease for whom the pneumococcal strain is sent to the National reference Center for Pneumococci for serotyping
- Ages
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1 day to 18 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Isolate of Streptococcus pneumoniae from at least one blood culture, or pleural fluid, or joint fluid, or cerebrospinal fluid or other normally sterile body site, or if there is a positive blood polymerase chain reaction (PCR). Exclusion Criteria: * Pneumococcal strain not transmetted to National Reference Center for Pneumococci or to Regional Pneumococci Observatory
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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ACTIV
RECRUITINGCréteil, 94000, France
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