Mouthwash may stop chemo mouth sores in their tracks
NCT ID NCT07287826
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a dexamethasone mouthwash can prevent moderate to severe mouth sores caused by chemotherapy in adults with cancer. Participants use the mouthwash four times daily during chemo for up to 8 weeks. Researchers compare their outcomes to a historical group to see if the rinse reduces pain and soreness.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- dexamethasone mouthwash
- What this could lead to
- If it works, this could offer a simple, low-cost way to prevent painful mouth sores during chemotherapy, improving comfort and quality of life.
- What could go wrong
- This is a small, early-phase study with only 45 participants and no placebo group, so results may not be conclusive. The mouthwash may not reduce sores for everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 45 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2026
- Expected to finish
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Jan 2028
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.
- Ages
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18 years and older
- 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: * ≥18 years old * Confirmed cancer diagnosis * Scheduled to receive or receiving chemotherapy known to be associated with oral mucositis (e.g., anthracyclines and taxanes) * Ability to provide informed consent * Ability to comply with study procedures Exclusion criteria: * Current tobacco usage or usage within the past 6 weeks. * HIV/AIDS * Gastrointestinal disorder (such as Crohn's disease, ulcerative colitis, or celiac disease) * History of cold sores (herpes simplex virus) * Herpes zoster (oral shingles) within the past 6 weeks * Active oral infections at the time of enrollment (e.g., candidiasis) * Known sensitivity or allergy to dexamethasone * Inability to self-administer or tolerate mouthwash protocol * Concurrent enrollment in conflicting clinical trials * Existing oral ulcers or oral mucositis at enrollment * Pregnant * Uncontrolled diabetes mellitus as defined by HbA1c unknown or \>8% in the past 3 months despite adequate therapy
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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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Woman's Hospital
RECRUITINGBaton Rouge, Louisiana, 70817, United States
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