Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Timing of glaucoma drainage device placement with Boston keratoprosthesis

Official title: Timing of Glaucoma Drainage Device Implantation With Boston Keratoprosthesis Surgery

Run by Centre hospitalier de l'Université de Montréal (CHUM) · NCT02084745 · Data updated 2026-11-12

This study is trying to find out the best time to place a glaucoma drainage device for patients getting a Boston keratoprosthesis to help prevent vision loss from glaucoma.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment40 (estimated)
SponsorCentre hospitalier de l'Université de Montréal (CHUM)
Academic / other
Locations1 site (Montreal, Quebec)
StatusRecruiting
StartedMay 26, 2014
Main results expectedDecember 31, 2028
Study endsDecember 31, 2028
Registry record updatedOctober 23, 2026
Trial IDNCT02084745 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 and older who require corneal transplantation due to previous transplant failures and have poor visual acuity.

Probably not a fit

Patients with terminal glaucoma or severe retinal diseases are unlikely to benefit from this study.

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

What this trial studies

This study investigates the optimal timing for the implantation of a glaucoma drainage device (GDD) in patients receiving a Boston keratoprosthesis (KPro) for corneal transplantation. The KPro is used to replace a damaged cornea in patients with a history of failed corneal transplants, but it can lead to complications such as glaucoma. The study aims to determine the best approach to prevent glaucoma-related vision loss by assessing the timing of GDD placement in relation to KPro surgery. By analyzing patient outcomes, the study seeks to establish guidelines for managing glaucoma in this complex patient population.

Why it matters

Potential benefit: If successful, this study could significantly reduce the risk of glaucoma and associated vision loss in patients undergoing corneal transplantation with KPro.

How similar studies have gone: While the management of glaucoma in KPro patients is challenging, there is limited consensus on the timing of GDD placement, indicating that this approach may be novel and untested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Candidate for corneal transplantation due to loss of corneal clarity
* Verifiable history of one or more previous full thickness donor corneal transplantation failure
* Pre-operative visual acuity of ≤20/80 or worse in the surgical eye
* Age ≥18 years
* Physical condition suitable for undergoing surgery

Exclusion Criteria:

* Terminal glaucoma
* Terminal retinal diseases

Where it's running

  • Centre Hospitalier de l'Université de Montréal (CHUM)
    Montreal, Quebec, Canada
    Recruiting

Study contacts

  • Principal investigator: Mona Harissi-Dagher, MD, FRCSC — Department of Ophthalmology, Centre Hospitalier de l'Université de Montréal
  • Study coordinator: Mona Harissi-Dagher, MD, FRCSC
  • Email: monadagher@hotmail.com
  • Phone: 1-514-890-8000

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.