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Endothelial Cell Loss in Pseudophakic Patients Receiving a Paul Glaucoma Drainage Device With Its Tube Inserted in the Anterior Versus Posterior Chamber: a Randomized Controlled Trial

NCT05500469 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 200

Last updated 2022-12-13

No results posted yet for this study

Summary

Rationale: Glaucoma is a group of diseases characterized by progressive neuropathy of the optic nerve associated with visual field loss. Current glaucoma management aims to preserve visual function throughout life by reducing the intraocular pressure. This can be achieved by medical therapy or by surgical procedures such as implantation of a glaucoma drainage device (GDD). Conventionally, the tube of such a device is positioned in the anterior chamber (AC). Unfortunately, the presence of the tube in the AC may have a significant negative impact on the number of endothelial cells of the cornea and may even lead to corneal decompensation. Alternatively, the tube can be positioned in the posterior chamber (i.e. behind the iris). In this study, both procedures will be compared.

Objective: Primary: to determine the loss of corneal endothelial cells after implantation of a Paul GDD with its tube either anterior or posterior of the iris. Secondary: to compare efficacy and safety of both procedures.

Study design: Prospective, randomised, treatment controlled clinical trial. Study population: Pseudophakic patients with glaucoma who need a GDD. Intervention: Implantation of a Paul GDD with its tube anterior/posterior of the iris. Main study parameters/endpoints: Endothelial cell loss of the cornea.

Nature and extent of the burden and risks associated with participation, benefit and group relatedness: At present potential benefits and drawbacks of positioning the Paul tube behind the iris are insufficiently known, successful positioning of the tube may require slightly more surgery time and the risk of hyphaema may be higher. It is expected, that in the long run damage to the corneal endothelium is less. Risks of study-related assessments are negligible, burden is low, extra time is about 35+15+35+35 minutes (total 2h).

Conditions

Interventions

DEVICE

Paul glaucoma drainage device (GDD)

Implantation of the GDD

Sponsors & Collaborators

  • Oogziekenhuis Rotterdam

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
100 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-10-20
Primary Completion
2026-08-31
Completion
2026-08-31

Countries

  • Netherlands

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05500469 on ClinicalTrials.gov