Tundra Space

Tundra Space

Clinical Research Directory

Browse clinical research sites, groups, and studies.

Back to Studies
COMPLETED
NCT07756411
NA

Selective, Micropulse and Pattern Laser Trabeculoplasty in Medically Treated Open-angle Glaucoma.

Sponsor: University of Udine

View on ClinicalTrials.gov

Summary

This randomized, single-centre, three-arm trial compared three subvisible laser trabeculoplasty delivery protocols in eyes with open-angle glaucoma already receiving intraocular pressure (IOP)-lowering medication: selective laser trabeculoplasty (SLT, 3-nanosecond pulses), micropulse laser trabeculoplasty (MLT, 577 nm with 15% duty cycle), and pattern laser trabeculoplasty (PLT, 5-ms pattern delivery). Ninety eyes of 90 patients were allocated 1:1:1 to a single 360-degree session and followed for 6 months. The primary outcome was IOP at 6 months, with an equivalence margin of +/-2.0 mmHg prespecified for pairwise comparisons. Secondary outcomes were percentage IOP change, number of IOP-lowering medications, cumulative treatment success (IOP reduction of at least 20% from baseline without an increase in medications), and adverse events. Outcome assessment was performed by a second ophthalmologist masked to allocation and to clinical history.

Official title: Subvisible Laser Trabeculoplasty in Medically Treated Open-angle Glaucoma: a Randomized Three-arm Comparison of Selective, Micropulse and Pattern Delivery Protocols.

Key Details

Gender

All

Age Range

18 Years - Any

Study Type

INTERVENTIONAL

Enrollment

90

Start Date

2025-02-01

Completion Date

2026-05-01

Last Updated

2026-08-10

Healthy Volunteers

No

Interventions

DEVICE

Selective laser trabeculoplasty

Nanosecond-pulse laser trabeculoplasty delivered over 360 degrees with a Tango laser (Ellex Medical Lasers, Adelaide, Australia) after two drops of pilocarpine 2% and topical anaesthetic.

DEVICE

Micropulse laser trabeculoplasty

Micropulsed 577-nm laser trabeculoplasty delivered over 360 degrees with an IQ 577 laser (Iridex, Mountain View, California, USA) after two drops of pilocarpine 2% and topical anaesthetic.

DEVICE

Pattern laser trabeculoplasty

Short-exposure pattern laser trabeculoplasty delivered over 360 degrees with a Pascal Streamline 577 (Topcon, Tokyo, Japan) after two drops of pilocarpine 2% and topical anaesthetic.

Locations (1)

Glaucoma Unit, Department of Medicine - Ophthalmology, University of Udine

Udine, UD, Italy