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NCT07074782Not yet recruiting

Retinal Ganglion Cell Neuroprotection Under Prostaglandin Analogues

Retinal Ganglion Cell Neuroprotection Under Prostaglandin Analogues: NEUROPA - a Retrospective Cohort Study

Source: ClinicalTrials.gov · Last updated 6 May 2026

Brief summary (registry, in English)

The goal of this observational study is to evaluate whether prostaglandin analogue eye drops have a direct neuroprotective effect on retinal ganglion cells - beyond their intraocular pressure (IOP)-lowering effect - in adult patients with glaucoma or ocular hypertension. The study includes individuals diagnosed with glaucoma (any sex/gender, adult age groups) undergoing standard clinical treatment. The main questions it aims to answer are: * Do prostaglandin analogues provide a neuroprotective effect on retinal ganglion cells that is independent of their IOP-lowering properties? * Should prostaglandin analogues be promoted/favoured over other IOP-lowering compounds for long-term glaucoma management? Researchers will compare an interventional group, which consist of 750 eyes treated with prostaglandin analogues (e.g., latanoprost, travoprost, tafluprost, bimatoprost, unoprostone), with a control group, which consist of 750 eyes treated with non-prostaglandin IOP-lowering compounds (e.g., timolol, dorzolamide, brimonidine, netarsudil) to see if treatment with prostaglandin analogues is associated with better retinal ganglion cell survival over a period of 3 years (36 months). Data will be collected from individuals who had at least 36 months of documented follow-up, with clinical data available at approximately 3, 6, 12, 24, and 36 months. Eligible individuals must have been treated with either prostaglandin analogues or other intraocular pressure (IOP)-lowering agents as part of routine clinical care. The data to be obtained from medical records will include at least: * Intraocular pressure readings * Visual field testing * OCT measures * Visual acuity * Adverse events * Treatment adherence/compliance * Additional glaucoma interventions

Status (registry)
Not yet recruiting
Study type
Observational
Enrollment
1500 (estimated)
First submitted
1 Jul 2025
Start date
1 May 2026
Primary completion date
30 Jun 2026
Lead sponsor
Association for Innovation and Biomedical Research on Light and Image
Diseases
Glaucoma
NCT number
NCT07074782

What you commit to

  • Study type: Observational
  • Planned participants: 1500
  • From 1 May 2026 to the primary completion date, 30 Jun 2026
  • 10 sites in 5 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Low compliance/therapy interruption
  • Beginning of combination therapy of prostaglandin analogues and other IOP lowering eye drops during the observation period
  • Additional glaucoma intervention during the observational period other than laser trabeculoplasty and/or cataract surgery

Age

  • Follow-up period \< 3 years

Other

  • Number of patient visits \<6 visits
  • Number of OCT, visual field readings during the observation period \< 6
  • In case of glaucoma diagnosis in both eyes: different topical IOP-lowering treatment regimes (e.g. prostaglandin analogues in one eye and beta-adrenergic blocking agents in the fellow eye)

Who the study is looking for

  • Age 18+ years
  • Established glaucoma diagnosis (primary open-angle glaucoma, normal tension Glaucoma, pseudoexfoliation glaucoma, pigmentary dispersion glaucoma) in either eye
  • Visual field mean deviation (MD; location-weighted mean difference from average age-corrected visual field sensitivity) of 2 visual fields differing by no more than 3 dB, for a mean deviation of better than -6.0 dB, or by no more than 4 dB, for a mean deviation worse than -6.0 dB, as measured using Humphrey perimetry (or equivalent Haag-Streit / Octopus; in at least one eye; analogous to The United Kingdom Glaucoma Treatment Study)
  • Treatment with either prostaglandin analogues only or another topically applied IOP-lowering compound only for at least 3 years
  • Documented follow-up period of at least 3 years
  • At least 6 patient visits documented over the follow-up period with readings of IOP, visual field, OCT
  • No additional glaucoma intervention apart from laser trabeculoplasty and/or cataract surgery during the observational period

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (10)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
University Hospital Basel
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BaselSwitzerlandUnknown status
Department of Ophthalmology University of Bonn
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BonnGermanyUnknown status
University Eye Hospital Leipzig
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LeipzigGermanyUnknown status
Centro de Oftalmologia Barraquer
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BarcelonaSpainUnknown status
Retina Unit, Department of Ophthalmology, Bellvitge University Hospital
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BarcelonaSpainUnknown status
Clinical Eye Research Centre - St. Paul's Eye Unit, Royal Liverpool University Hospital
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LiverpoolUnited KingdomUnknown status
NIHR Moorfields Clinical Research Facility, Moorfields Eye Hospital, NHS Foundation Trust
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LondonUnited KingdomUnknown status
ICORG - Imperial College Ophthalmologic Research Group
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LondonUnited KingdomUnknown status
Centre for Clinical Trials at San Paolo Hospital University of Milan
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MilanItalyUnknown status
Eye Unit, University Hospital Maggiore della Carità
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NovaraItalyUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.