Blood test may spare kids from unneeded radiation after head bumps
NCT ID NCT02819778
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether measuring a protein called S100B in the blood can help doctors decide if a child with a mild head injury needs a CT scan. Over 2,200 children were assigned to either standard care or care guided by the S100B test. The goal was to see if the test could safely cut down on CT scans, which expose children to radiation that may increase cancer risk.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
S100B blood test
What this could lead to
If successful, this blood test could become a standard tool to safely avoid many CT scans in children with mild head injuries, reducing radiation risks.
What could go wrong
The test may not be accurate enough to replace CT scans in all cases, and results might vary across different hospitals or patient groups.
Disclaimer
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the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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.
Contacts and locations
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Locations
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Assistance Publique des Hôpitaux de Marseille
Marseille, 13385, France
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CHU Clermont-Ferrand
Clermont-Ferrand, 63003, France
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Hospices Civils de LYON
Bron, 69677, France
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Limoges Teaching hospital
Limoges, 87042, France
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Montpellier Teaching hopsital
Montpellier, 34090, France
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Nantes Teaching Hospital
Nantes, 44036, France
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Nice Teaching Hospital
Nice, 06200, France
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Nimes Teaching Hospital
Nîmes, 30900, France
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Reims Teaching Hospital
Reims, 51092, France
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Saint-Etienne Teaching Hospital
Saint-Etienne, 42055, France
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Vichy Hospital Center
Vichy, 03200, France