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Glaucoma showdown: which surgery works best?

NCT ID NCT07325552

Disease control Sponsor: Medical University of Bialystok Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares two surgical options—iStent inject and goniotomy with Kahook Dual Blade—performed during cataract surgery in 100 people with open-angle glaucoma. The goal is to see which method better lowers eye pressure and reduces the number of daily eye drops needed. Both procedures aim to improve fluid drainage in the eye.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
iStent inject (tiny implant) and Kahook Dual Blade (surgical device)
What this could lead to
If successful, this could show which surgical approach better controls eye pressure and reduces the need for daily eye drops in glaucoma patients.
What could go wrong
This is a small, early-stage study (100 participants) comparing two existing procedures, so results may not apply to all patients. Both surgeries carry risks like infection or temporary vision changes.

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

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

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2026

Expected to finish

Jan 2028

An estimate. End dates often move.

Lead sponsor

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

18 weeks and older

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Only one eye per participant * Clinically significant cataract * Glaucoma or intraocular hypertension treated with one to four medications and no need for filtering glaucoma surgery at the time of study enrollment. * Open chamber angle with Schaffer grading three to four in at least two quadrants Exclusion Criteria: * Previous glaucoma surgery, including cyclodestructive procedures. * Selective Laser Trabeculoplasty (SLT) within 90 days prior to planned surgery. * Exudative age-related macular degeneration, proliferative diabetic retinopathy, clinically significant corneal dystrophy, other eye disease that affect intraocular eye pressure or visual field. * Unable to participate and make written consent due to another medical condition.

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Conditions

The condition(s) this trial relates to.

glaucoma open-angle glaucoma

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Open-angle glaucoma (OAG)

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Medical University of Bialystok

    RECRUITING

    Bialystok, Polska, 15-866, Poland

  • Ophthalmology Clinic Medical University of Bialystok

    RECRUITING

    Bialystok, 15-089, Poland

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