Imaging the effect of Netarsudil on the eye’s drainage system in glaucoma and ocular hypertension
Official title: Adaptive Optics Gonioscopy In Vivo Imaging of the Effects of Rhopressa on the Trabecular Meshwork in Patients With Ocular Hypertension or Glaucoma
Run by Indiana University · NCT07588152 · Data updated 2026-11-12
This study tests whether netarsudil eye drops change the trabecular meshwork’s structure compared with placebo in adults with ocular hypertension or open-angle glaucoma.
Quick facts
| Phase | Phase 4 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 50 (estimated) |
| Sponsor | Indiana University Academic / other |
| Locations | 1 site (Bloomington, Indiana) |
| Status | Recruiting |
| Started | June 5, 2026 |
| Main results expected | June 2028 |
| Study ends | June 2028 |
| Registry record updated | June 11, 2026 |
| Trial ID | NCT07588152 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18 and older with ocular hypertension or open-angle glaucoma, with open angles on gonioscopy and suitable imaging windows.
✕Probably not a fit
Patients whose trabecular meshwork does not show measurable changes or who do not respond to netarsudil may not experience imaging-based benefits.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
In this randomized, single-masked trial, about 50 adults with ocular hypertension or open-angle glaucoma will receive netarsudil or artificial tears for roughly two to three weeks. High-resolution imaging (adaptive optics gonioscopy, AS-OCT, and OCT gonioscopy) will be done at baseline and after treatment to look for changes in trabecular meshwork lamellae spacing, height, width, and Schlemm’s canal diameter. The study aims to better understand how netarsudil may alter the eye’s fluid outflow pathways. Primary outcome is change in lamellae spacing; secondary outcomes include structural measures of the trabecular meshwork, with exploratory measures of Schlemm’s canal diameter and endothelial cell counts.
Why it matters
Potential benefit: If successful, netarsudil could reveal structural changes that support better fluid drainage and potentially lower intraocular pressure.
How similar studies have gone: Preclinical data suggested structural changes with netarsudil; human in vivo imaging data are limited, making this study exploratory.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Adults aged 18 years or older * Diagnosis of ocular hypertension or open-angle glaucoma * Eye examination within the past year * For glaucoma subjects: structural (optic nerve and/or retinal nerve fiber layer) and functional (visual field) findings consistent with glaucoma * Best-corrected visual acuity of 20/100 or better * Open anterior chamber angle as confirmed by gonioscopy and anterior segment optical coherence tomography (AS-OCT) * Intraocular pressure between 18 and 34 mmHg (treatment-naïve or after washout, if applicable) Exclusion Criteria: * Known intolerance to netarsudil ophthalmic solution * Corneal scarring or active corneal disease that would interfere with imaging * Inability to tolerate gonioscopy procedures * Females of childbearing potential who are not using effective contraception or are not sterile * Any condition that, in the opinion of the investigator, would place the subject at increased risk or interfere with study completion
Where it's running
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Indiana Universtiy School of Optometry
Bloomington, Indiana, United States Recruiting
Study contacts
- Study coordinator: Brett J King, OD
- Email: kingbrj@iu.edu
- Phone: (812) 855-1344
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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.