Laser light may stop chemo mouth sores in children
NCT ID NCT03983369
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether low-level laser therapy can prevent severe mouth sores (mucositis) caused by chemotherapy in children and young adults aged 4 to 25. The laser is a painless, non-heating light applied to the mouth before chemotherapy. The trial is double-blind and placebo-controlled, meaning some participants get a sham laser. If successful, it could offer a safe, drug-free way to reduce a common and painful side effect of cancer treatment.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Low-level laser therapy (LLLT) device
What this could lead to
If it works, this could give doctors a simple, non-drug way to prevent painful mouth sores in young cancer patients undergoing chemotherapy.
What could go wrong
This is a Phase 3 trial, but the effect may be modest or no better than placebo. The laser device requires cooperation from children, which may limit its use.
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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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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CHU de Rennes
RECRUITINGRennes, 35203, France
Contact
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Centre Oscar Lambret
RECRUITINGLille, 59020, France
Contact
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Gustave Roussy
RECRUITINGVillejuif, Val de Marne, 94805, France
Contact Phone: •••-•••-•••• Email: •••••@•••••
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Hôpital Robert Debré
RECRUITINGParis, 75019, France
Contact
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Institut Curie
RECRUITINGParis, 75248, France
Contact