Plain-English translation of NCT04664556 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This is a nationwide study in France that looks at children under 18 who have been hospitalized with invasive pneumococcal disease — a serious infection caused by a specific bacterium. Researchers will review hospital records and medical information from these children to understand what puts them at risk, whether they were vaccinated, how severe their infection was, and how they responded to treatment.
Invasive pneumococcal disease is a serious condition that can affect children in many ways. By studying real cases across the entire country, researchers can better understand which children are most vulnerable, how well current vaccines are working, and what the best treatments are.
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This is not a treatment study — researchers simply review medical records from children already hospitalized with this infection. There are no study visits, medications, or extra procedures. Participation involves allowing your hospital records, test results, vaccination history, and information about your treatment to be analyzed by the research team to help them learn more about this disease.
AI-generated summary from trial data · Aug 15, 2026 · Not medical advice
France
Sponsor
Association Clinique Thérapeutique Infantile du val de Marne
Collaborators
Pfizer
Enrollment target
~2,500 participants
Started
December 2010
Primary completion
January 2030
Age range
1 Day – 18 Years
Last updated on clinicaltrials.gov in April 2026.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
Levy Corinne
Association Clinique Thérapeutique Infantile du val de Marne
Tell us you're interested and we'll help connect you with the research team. We'll walk you through what to expect first — no email needed to get started.