Could a simple injection ease chronic dry mouth?
NCT ID NCT07594184
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether injecting hyaluronic acid into the mouth can relieve dry mouth symptoms in adults with xerostomia. Forty participants will receive either the treatment or a placebo and be followed for six months. The goal is to see if it improves comfort and saliva flow, and how long any benefit lasts.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- hyaluronic acid
- What this could lead to
- If it works, this could offer a new way to relieve chronic dry mouth symptoms for people with xerostomia.
- What could go wrong
- This is a small, early-stage trial with only 40 participants, so results may not apply to everyone. The treatment is compared to a placebo, and the effect may be modest or short-lived.
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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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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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2025
- Expected to finish
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Dec 2026
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.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients over 18 years of age * Patients reporting symptoms compatible with xerostomia for at least one year * Patients who agree to cooperate in the study, comply with the follow-up plan, and sign the informed consent Exclusion Criteria: * Underage patients * Pregnant patients * Patients on antiplatelet or anticoagulant therapy * Patients with a history of adverse reactions to hyaluronic acid infiltration * Patients with active infectious diseases in the oral cavity * Immunocompromised patients * Patients with other active diseases affecting the oral mucosa * Patients with uncontrolled autoimmune diseases * Patients allergic to lidocaine and/or mepivacaine * Patients undergoing active chemotherapy and/or radiotherapy for head and neck * Non-cooperative patients (e.g., psychomotor dysfunctions and behavioral disorders)
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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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Hospital Odontologico Universidad de Barcelona
RECRUITINGBarcelona, Barcelona, 08907, Spain
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