NCT05411198CompletedPhase 3
Study to Assess Change in Disease Activity and Adverse Events of Ab Externo Approach for Glaucoma Gel Stent (XEN45) Implantation In Participants Aged 45 Years or Older With Open-Angle Glaucoma
A Prospective, Multicenter Clinical Study to Evaluate the Safety and Effectiveness of Ab Externo Implantation of Glaucoma Gel Stent
Source: ClinicalTrials.gov · Last updated 27 Feb 2026
Brief summary (registry, in English)
Glaucoma is the second most common cause of blindness in the world, second only to cataracts. This study will assess how safe and effective a glaucoma gel stent is when implanted using the ab externo approach. Adverse events and intraocular pressure will be assessed. XEN45 is an approved device for the treatment of glaucoma implanted using the ab interno approach (inside the eye). XEN45 implanted using the ab externo approach (outside the eye) is being studied in this study. Approximately 65 participants aged 45 years or older with open-angle glaucoma will be enrolled in this study at approximately 22 sites in the United States. All participants will receive XEN45 implanted using the ab externo approach on Day 1 and will be followed for 12 months. Participants will attend regular visits during the study at a hospital or clinic. The safety and effect of the gel stent on your glaucoma will be checked by medical assessments and eye examinations.
- Status (registry)
- Completed
- Phase (registry)
- Phase 3
- Study type
- Interventional
- Enrollment
- 74 (actual)
- First submitted
- 6 Jun 2022
- Start date
- 22 Jul 2022
- Primary completion date
- 4 Feb 2026
- Lead sponsor
- AbbVie
- Diseases
- Glaucoma
- NCT number
- NCT05411198
What you commit to
- Study type: Interventional · Phase 3
- Participants enrolled: 74
- From 22 Jul 2022 to the primary completion date, 4 Feb 2026
- 25 sites in 2 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
- A lack of healthy conjunctiva showing free mobility (free of scarring or evidence of prior surgery) in the target area.
- Other surgical complication that in the opinion of the investigator could impede proper placement of the Gel Stent.
Other illness
- Excessive intraoperative bleeding, such that visualization in the study eye is impaired.
Other
- Any anatomy or finding in the study eye that limits the investigator's ability to visualize the anterior chamber, angle, or target area of the conjunctiva.
Who the study is looking for
- Glaucoma in the study eye.
- Study eye diagnosed with open-angle glaucoma uncontrolled by medical therapy
- Study eye that meet at least one of the following criteria:
- Failed one or more incisional intraocular glaucoma surgeries (e.g., glaucoma filtering surgery or tube shunt) (a minimum of approximately 15 subjects will be enrolled)
- Failed one or more cilioablative procedures (e.g., cryotherapy, cyclodiode therapy)
- Have neovascular glaucoma
- Have any other condition (e.g., conjunctival scarring, uveitis) in which a conventional incisional glaucoma surgery like trabeculectomy would be more likely to fail than for a person with uncomplicated primary open-angle glaucoma (OAG).
- Note: To allow for a subgroup of participants who only have OAG uncontrolled by medical therapy (non-refractory glaucoma), a maximum of 10 participants who meet only criterion a (and not b) will be enrolled.
Age in the registry: 45 years to - · Sex: All · Does not accept healthy volunteers
Sites (25)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Eye Surgery Associates /ID# 252207 Coordinator of this site? Confirm its status | East Melbourne | Australia | Unknown status |
| Melbourne Eye Specialists /ID# 252353 Coordinator of this site? Confirm its status | Fitzroy | Australia | Unknown status |
| Vance Thompson Vision /ID# 261125 Coordinator of this site? Confirm its status | Alexandria | United States | Unknown status |
| Georgia Eye Partners /ID# 245203 Coordinator of this site? Confirm its status | Atlanta | United States | Unknown status |
| Ophthalmic Partners, PC /ID# 245367 Coordinator of this site? Confirm its status | Bala-Cynwyd | United States | Unknown status |
| The Johns Hopkins Wilmer Eye Institute - Bethesda /ID# 245355 Coordinator of this site? Confirm its status | Bethesda | United States | Unknown status |
| University of Texas Southwestern Medical Center /ID# 246848 Coordinator of this site? Confirm its status | Dallas | United States | Unknown status |
| Glaucoma Associates of Texas /ID# 227580 Coordinator of this site? Confirm its status | Dallas | United States | Unknown status |
| El Paso Eye Surgeons, P.A. /ID# 227575 Coordinator of this site? Confirm its status | El Paso | United States | Unknown status |
| Northern Virginia Ophthalmology Associates -Falls Church /ID# 246925 Coordinator of this site? Confirm its status | Falls Church | United States | Unknown status |
| Vold Vision /ID# 245285 Coordinator of this site? Confirm its status | Fayetteville | United States | Unknown status |
| East Coast Institute for Research /ID# 255508 Coordinator of this site? Confirm its status | Jacksonville | United States | Unknown status |
| Kremer Eye Center - King of Prussia /ID# 245573 Coordinator of this site? Confirm its status | King of Prussia | United States | Unknown status |
| NYU Langone Medical Center /ID# 227583 Coordinator of this site? Confirm its status | New York | United States | Unknown status |
| Fichte Endl & Elmer Eyecare /ID# 245165 Coordinator of this site? Confirm its status | Niagara Falls | United States | Unknown status |
| Oklahoma Eye Surgeons /ID# 246840 Coordinator of this site? Confirm its status | Oklahoma City | United States | Unknown status |
| Stiles Eyecare Excellence /ID# 227576 Coordinator of this site? Confirm its status | Overland Park | United States | Unknown status |
| UCLA Doheny Eye Center /ID# 227587 Coordinator of this site? Confirm its status | Pasadena | United States | Unknown status |
| University of Utah /ID# 245324 Coordinator of this site? Confirm its status | Salt Lake City | United States | Unknown status |
| Eye associates /ID# 227572 Coordinator of this site? Confirm its status | San Antonio | United States | Unknown status |
| Center for Sight - Sarasota /ID# 227577 Coordinator of this site? Confirm its status | Sarasota | United States | Unknown status |
| Vance Thompson Vision /ID# 260892 Coordinator of this site? Confirm its status | Sioux Falls | United States | Unknown status |
| Washington University-School of Medicine /ID# 245452 Coordinator of this site? Confirm its status | St Louis | United States | Unknown status |
| Ventura Ophthalmology /ID# 227585 Coordinator of this site? Confirm its status | Ventura | United States | Unknown status |
| New Vision Eye Center /ID# 261053 Coordinator of this site? Confirm its status | Vero Beach | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.