New dissolving stent could offer hope for chronic watery eyes
NCT ID NCT07499791
First seen Jun 25, 2026 · Last updated Aug 28, 2026 · Updated 3 times
Summary
This study tests a new absorbable stent that releases medication to keep the tear duct open after surgery for recurrent chronic dacryocystitis (blocked tear ducts). Forty adults who have had a previous failed surgery will be randomly assigned to receive either the new stent or standard packing with a nasal spray. The goal is to see if the stent improves symptoms and keeps the duct open better than current methods.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Absorbable lacrimal sac drug-eluting stent (coated with mometasone furoate)
- What this could lead to
- If successful, this stent could offer a better way to treat recurrent blocked tear ducts, reducing the need for repeat surgeries.
- What could go wrong
- This is a small, early-phase trial with only 40 participants. The stent may not work better than standard care, and risks include allergy to the drug or material, or the stent not dissolving properly.
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 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- 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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May 2026
- Expected to finish
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Dec 2027
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 to 65 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.
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: * Diagnosed chronic dacryocystitis History of failed E-DCR or lacrimal intubation Preoperative dacryocystography showing lacrimal sac diameter ≥4 mm Age ≥18 years Able to consent and comply with procedures Exclusion Criteria: * Nasal cavity structural disease: severe septal deviation, tumor, severe sinusitis Lacrimal sac non-visualization on imaging Lacrimal sac rupture, traumatic duct/bone injuries Allergy to mometasone furoate or PLA/PGA polymers Poor general health, unable to tolerate surgery Psychiatric disorders or antipsychotic drug use Uncontrolled hypertension, diabetes, or severe systemic diseases Keloid tendency Coagulation disorders Pregnancy
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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
2 sites. 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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Beijing Tongren Hospital
RECRUITINGBeijing, Beijing Municipality, 100005, China
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Beijing Tongren Hospital, Capital Medical University, Beijing, Beijing 100000
NOT_YET_RECRUITINGBeijing, China