Skip to content

Comparison of two different minimally invasive surgical techniques in primary open angle glaucoma

Comparison of Bent ab interno needle goniotomy (BANG) and Gonioscopy-assisted transluminal trabeculotomy (GATT) in primary open angle glaucoma: a randomized clinical trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-268ms5y
Enrollment
Unknown
Registered
2023-07-29
Start date
2022-03-01
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glaucoma, Open-Angle

Interventions

At the inclusion, all procedures described at the inclusion criteria (intraocular pressure measurement, retina nerve fiber layer and visual field) will be done, in addition to endothelial cell count a

Sponsors

Hospital de Clínicas da Universidade Estadual de Campinas (HC-Unicamp)
Lead Sponsor
Hospital de Clínicas da Universidade Estadual de Campinas (HC-Unicamp)
Collaborator

Eligibility

Age
40 Years to 80 Years

Inclusion criteria

Inclusion criteria: Primary open angle glaucoma, defined by an open angle on gonioscopy evaluation, visual field loss and RNFL damage on OCT; age between 18 and 80 years; visual field mean deviation (MD) > -12dB; RNFLT>60µm on OCT; prior phacoemulsification with IOL implant; best corrected visual acuity =0,1 on Snellen chart; IOP=18mmHg with 3 IOP-lowering drops, and between 20mmHg and 36mmHg after medication wash-out

Exclusion criteria

Exclusion criteria: Other types of open angle glaucoma: steroid-induced, pseudoexfoliation, pigmentary e juvenile; congenital glaucoma; angle-clousure; prior cataract surgery less than 30 days; drainage device implant or cyclophotocoagulation; prior vitreoretinal surgery; cornea opacity

Design outcomes

Primary

MeasureTime frame
It´s expected to verify a reduction in intraocular pressure and number of glaucoma drops in one-year period, verifyed by Goldman aplanation tonometer, with a variation of at least 20% in intraocular pressure pre- and post-intervention

Secondary

MeasureTime frame
Secundary outcomes are not expected

Countries

Brazil

Contacts

Public ContactGabriel Ayub

University of Campinas CLinics Hospital

gabriel.ayub@gmail.com+5519983567955

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Feb 6, 2026