New surgical tool aims to lower eye pressure in glaucoma patients
NCT ID NCT06615661
First seen Jul 21, 2026 · Last updated Jul 22, 2026 · Updated 1 time
Summary
This study follows 100 adults with primary open-angle glaucoma who had a goniotomy procedure using the C-Rex surgical instrument. The goal is to see how well the surgery lowers intraocular pressure and reduces the need for glaucoma medications over 12 months. Researchers will also track any device-related complications.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- C-Rex Instrument, a manual ophthalmic surgical device used for goniotomy
- What this could lead to
- If successful, this could confirm that the C-Rex device is a safe and effective surgical option for lowering eye pressure in glaucoma patients.
- What could go wrong
- This is an observational study without a comparison group, so results may not prove the device is better than other treatments. Some patients may not achieve the desired pressure reduction.
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.
- Participants
-
100 people
The number who actually took part.
- Started
-
Aug 2024
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
-
A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Eligible participants who underwent IOP-lowering surgical procedures using the C-Rex Instrument to perform ab-interno goniotomy
- Ages
-
22 years and older
- Sex
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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 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: * Primary open angle glaucoma * Goniotomy surgery performed using the C-Rex Instrument Exclusion Criteria: * History of intraocular surgery within 8 weeks prior to C-Rex surgery * Preoperative IOP higher than 33 mmHg * Presence of a glaucoma type other than POAG * Presence of clinically significant intraocular pathology other than cataract or glaucoma
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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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CIRCLE Site 04
Crossville, Tennessee, 38555, United States
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CIRCLE Site 07
Atlanta, Georgia, 30342, United States
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CIRCLE Site 10
DeLand, Florida, 32720, United States
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CIRCLE Site 30
Brentwood, New York, 11717, United States
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CIRCLE Site 31
Rockville Centre, New York, 11570, United States
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CIRCLE Site 32
Cape Coral, Florida, 33904, United States
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