Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Removing the ripcord from a glaucoma drainage device after 3 months

Official title: Prospective, Single-arm Interventional Study to Determine Effect of Late Ripcord Removal From Glaucoma Drainage Device

Run by Duke University · NCT07803536 · Data updated 2026-11-12

This study tests whether removing the ripcord from an implanted glaucoma drainage device changes eye pressure for adults with open-angle glaucoma.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment80 (estimated)
SponsorDuke University
Academic / other
Locations1 site (Durham, North Carolina)
StatusRecruiting
StartedDecember 2026
Main results expectedSeptember 2028
Study endsDecember 2028
Registry record updatedNovember 9, 2026
Trial IDNCT07803536 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults over 18 with a ripcord in an Ahmed Clear Path or Baerveldt drainage device implanted for glaucoma, at Duke Eye Center, and able to consent.

Probably not a fit

Patients whose intraocular pressure does not change or decreases are not guaranteed a direct benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Adults with open-angle glaucoma who have an Ahmed Clear Path or Baerveldt drainage device with a ripcord are evaluated after ripcord removal to see how intraocular pressure changes over time. IOP is measured before removal, 30 minutes after, and at 1 week, 6 weeks, and 3 months during routine clinic visits. The procedure is performed at Duke Eye Center and participation is voluntary. The study aims to determine if late ripcord removal affects glaucoma control.

Why it matters

Potential benefit: If successful, the approach could offer an additional option to manage intraocular pressure in patients with drainage devices.

How similar studies have gone: Previous research on ripcord removal in glaucoma drainage devices has limited data; this study contributes new information on late removal.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age \> 18 years
* Placement of Ahmed Clear Path or Baervelt drainage device with ripcord \> 3 months
* Diagnosis of Glaucoma, under active management at Duke Eye Center Glaucoma Clinic
* Ripcord suture still in place and accessible for removal
* Able to provide written informed consent
* IOP \> 10 mm Hg

Exclusion Criteria:

* Active ocular infection or conjunctivitis in either eye
* Inability to undergo ripcord removal procedure
* Scheduled for further glaucoma surgery

Where it's running

  • Duke University Eye Center
    Durham, North Carolina, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.