Comparing iStent and laser treatment for exfoliation glaucoma during cataract surgery
Official title: A Prospective Randomised Trial Comparing Selective Laser Trabeculoplasty (SLT) and iStent Trabecular Micro-bypass Stent Implantation Combined With Cataract Surgery in Exfoliation Glaucoma
Run by Helsinki University Central Hospital · NCT04635020 · Data updated 2026-11-12
This study is testing whether using the iStent or laser treatment during cataract surgery helps people with exfoliation glaucoma see better compared to just having cataract surgery alone.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 50 Years to 100 Years |
| Sex | All |
| Enrollment | 285 (estimated) |
| Sponsor | Helsinki University Central Hospital Academic / other |
| Locations | 1 site (Helsinki) |
| Status | Recruiting |
| Started | October 1, 2020 |
| Main results expected | September 2023 |
| Study ends | September 2033 |
| Registry record updated | November 18, 2020 |
| Trial ID | NCT04635020 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients with mild to moderate exfoliation glaucoma and significant cataracts who can attend follow-up visits for 12 months.
✕Probably not a fit
Patients with advanced glaucoma or those unable to use topical medical therapy may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study investigates the effectiveness of the iStent trabecular microbypass stent compared to selective laser trabeculoplasty (SLT) in patients with exfoliation glaucoma undergoing cataract surgery. Patients with stable or unstable glaucoma will be randomized into different treatment groups: one receiving cataract surgery with iStent, another with SLT, and a control group undergoing cataract surgery alone. The study aims to assess the outcomes of these interventions over a 12-month period. All participants will provide informed consent and undergo screening to determine their eligibility based on specific glaucoma criteria.
Why it matters
Potential benefit: If successful, this study could provide a more effective treatment option for patients with exfoliation glaucoma undergoing cataract surgery.
How similar studies have gone: Other studies have shown promising results with similar approaches, but this specific comparison is novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Signed consent of information * Clinical significant cataract * Able to attend 12 month period * Mild to moderate exfoliation glaucoma according to European glaucoma society guidelines (EGS) * Group I stable glaucoma (IOP within individual target IOP), and group II unstable glaucoma (IOP above individual target IOP) with baseline glaucoma medication * Target IOP ≥16 * Able to understand Finnish, Swedish or English Exclusion Criteria: * Clinical set target IOP \< 16 mmHg in advanced glaucoma * Baseline IOP prior to enrolment ≥30 mmHg, and ≥3 glaucoma medications * Closed angle * Congenital angle anomaly * Clinically significant corneal dystrophy or other hindering corneal condition * Unable to use topical medical therapy * Central corneal thickness of less than 480um or more than 620um * Active uveitis, cystic macular edema (CME), exudative age-related macular degeneration, proliferative diabetic retinopathy or clinical significant macular edema, intraocular neoplasm, intraocular injections, intraocular lens luxation, phacodonesis. * Previous intraocular surgery, refractive surgery or cycloablation * Two or more prior SLT or laser trabeculoplasty * Unable to participate due to another medical disease or condition * Participating in another clinical trial
Where it's running
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Helsinki University Hospital
Helsinki, Finland Recruiting
Study contacts
- Principal investigator: Mika Harju, MD, prof. — Helsinki University Central Hospital
- Study coordinator: Eeva Ojanen, MD
- Email: eeva.ojanen@hus.fi
- Phone: +358503608589
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Rotational Stability of the Acunex Vario Toric
This study tests whether the Acunex Vario toric extended-depth-of-focus intraocular lens stays stable in rotation and effectively reduces astigmatism for people undergoing cataract surgery.
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Anterior segment anatomy assessment with swept-source OCT in eye surgery patients
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-
MiLOOP-assisted cataract surgery for dense cataracts
In people with dense cataracts, this study tests whether using the miLOOP device during cataract surgery can protect corneal cells and reduce ultrasound energy, compared with standard surgery.
-
Visual adaptation and quality of life after different IOL implantation options
This study follows adults who have cataracts and receive bilateral multifocal or mixed IOLs to see how their vision and daily life improve over 6 months.
-
Corneal Biomechanics and Surgical Astigmatism after Cataract Surgery in Pseudoexfoliation
This study tests how the cornea's biomechanical properties before cataract surgery relate to the amount of blinking surgically induced astigmatism, comparing people with pseudoexfoliation to those without.
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Neuroplastic pain education and guided breathing during awake cataract surgery
This trial tests whether the STEIN Protocol, a non-drug approach with pain education, guided imagery, and paced breathing, helps adults having cataract surgery require less pain medicine and feel less anxious.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.