Radiation's hidden impact: mouth viruses under the microscope
NCT ID NCT02180932
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This completed study looked at how radiation therapy for head and neck cancers affects viruses in the mouth, specifically the Epstein-Barr virus (EBV), and how this might relate to gum disease. Researchers collected samples from 25 patients to measure virus levels. The goal was to better understand why many patients develop severe gum problems after radiation, not to test a new treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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25 people
The number who actually took part.
- Started
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Oct 2014
- Finished
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Dec 2015
- 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.
- Ages
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18 to 80 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients ≥ 18 years * Patients treated with curative radiotherapy on tumor site or surgery for cancer of the oral cavity and / or oropharynx * Patients naive treatments for head and neck cancers * Patients affiliated or beneficiary of a social security scheme * Patients who gave informed consent in writing Exclusion Criteria: * Patients treated with neoadjuvant chemotherapy, adjuvant or concomitant * Patients taking immunosuppressants after organ transplantation * Taking anticoagulants incompatible with dental samples (possible bleeding) * Patients edentulous and / or whose dental condition is incompatible with the dental samples
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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
Locations
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Hôpital saint Roch
Nice, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a dental assistant keep cancer Patients' mouths healthier during radiation?
- Why do Non-Smokers get head and neck cancer? scientists probe tumor DNA
- Re-irradiation plus cetuximab targets head and neck tumors that return
- Sharper tumor maps: PET scans could tighten radiation beams
- Magnifying the fight against gum disease: loupe vs microscope
- Five days of radiation instead of weeks: a new test for head and neck cancer