Hydrus® Microstent New Enrollment Post-Approval Study (CONFIRM)
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ClinicalTrials.gov Identifier: NCT04553523 |
Recruitment Status :
Recruiting
First Posted : September 17, 2020
Last Update Posted : December 20, 2022
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Condition or disease | Intervention/treatment | Phase |
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Primary Open Angle Glaucoma | Device: Hydrus Microstent Procedure: Cataract surgery Device: Monofocal IOL | Not Applicable |
Qualified subjects will attend a screening visit, a surgical visit (Day 0), and 8 scheduled postoperative visits at Day 1, Day 7, Month 1, Month 3, Month 6, Month 12, Month 18, and Month 24.
This study was initiated by Ivantis, Inc. Ivantis was acquired by Alcon Research, and Alcon assumed sponsorship of the study in November 2022.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 545 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | The Hydrus® Microstent New Enrollment Post-Approval Study: A Prospective, Non-Randomized, Multicenter, Single Arm, Clinical Trial |
Actual Study Start Date : | August 25, 2020 |
Estimated Primary Completion Date : | December 2026 |
Estimated Study Completion Date : | December 2026 |

Arm | Intervention/treatment |
---|---|
Experimental: Hydrus Microstent
Hydrus Microstent implanted in the eye immediately following cataract surgery and placement of a monofocal intraocular lens (IOL)
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Device: Hydrus Microstent
Crescent-shaped nitinol device intended as a permanent implant to provide an outflow pathway for aqueous humor. The device is placed through the trabecular meshwork into Schlemm's canal immediately following placement of a monofocal IOL. Procedure: Cataract surgery Cataract surgery performed using standard anesthesia and phacoemulsification techniques Device: Monofocal IOL Commercially available monofocal intraocular lens as determined by the investigator |
- Rate of occurrence of clinically significant device malposition associated with clinical sequelae [ Time Frame: Day 0 operative, up to Month 24 postoperative ]The position of the implant will be assessed visually intraoperatively and at each postoperative follow-up visit. Examples of clinically significant device malposition associated with clinical sequelae as listed in the protocol include secondary surgical intervention to modify device position or to remove the device (explantation), corneal endothelial touch by device, iris touch by the device associated with intraocular inflammation, pigment dispersion or other sequelae, central endothelial cell loss ≥30 percent, compromised corneal function, best-corrected visual acuity (BCVA) loss of 2 lines (10 letters) or more on the ETDRS chart, device obstruction requiring secondary surgical intervention, persistent anterior chamber inflammation with peripheral anterior synechiae, persistent anterior chamber inflammation without peripheral anterior synechiae, and chronic pain.
- Rate of occurrence of intraoperative ocular adverse events [ Time Frame: Day 0 operative ]Intraoperative ocular adverse events as specified in the protocol include hyphema obscuring the surgeon's view, choroidal hemorrhage or effusion, choroidal detachment, significant iris injury or trauma, corneal abrasion, corneal edema, zonular dialysis, cyclodialysis, cyclodialysis cleft, iridodialysis, vitreous loss not associated with the cataract procedure, inadvertent perforation of the sclera, and Descemet's membrane detachment.
- Rate of occurrence of sight threatening postoperative adverse events [ Time Frame: Up to Month 24 ]Sight threatening, post-operative adverse events as specified in the protocol include endophthalmitis, corneal decompensation, severe retinal detachment, severe choroidal hemorrhage, severe choroidal detachment, and aqueous misdirection.
- Rate of occurrence of other postoperative ocular adverse events [ Time Frame: Up to Month 24 ]Other postoperative ocular adverse events as specified in the protocol include anterior uveitis/iritis, non-persistent & persistent, best corrected visual acuity (BCVA) loss of 2 lines or more, chronic pain, device migration, device obstruction, peripheral anterior synechiae (PAS), ocular secondary surgical interventions for intraocular pressure (IOP) or glaucoma management, hypotony at or after 1 month postop, hyphema, corneal opacification, corneal edema persisting or severe corneal edema, other retinal complications, elevated mean IOP >/=10 millimeters mercury (mmHg) vs screening, iris prolapse/wound incarceration, significant foreign body sensation at or after 3 months postop, surgical re-intervention, and worsening of visual field.

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Ages Eligible for Study: | 45 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- An operable, age-related cataract with best corrected visual acuity (BCVA) of 20/40 or worse;
- Diagnosis of primary open angle glaucoma treated with no more than 4 topical hypotensive medications;
- Optic nerve appearance characteristic of glaucoma;
- Medicated IOP less than or equal to 31 millimeters mercury (mmHg); Other protocol-defined inclusion criteria may apply.
Exclusion Criteria:
- Closed angle forms of glaucoma;
- Congenital or developmental glaucoma;
- Secondary glaucoma;
- Use of more than 4 ocular hypotensive medications;
- Previous argon laser trabeculoplasty, trabeculectomy, tube shunts, or any other prior filtration or cilioablative surgery;
- Prior surgery with implanted device or other surgery involving the trabecular meshwork or Schlemm's canal;
- Other protocol-defined exclusion criteria may apply.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04553523
Contact: Alcon Call Center | 1-888-451-3937 | alcon.medinfo@alcon.com |
United States, California | |
Alcon Investigator 7977 | Recruiting |
Sacramento, California, United States, 95815 | |
United States, Colorado | |
Alcon Investigator 4421 | Active, not recruiting |
Loveland, Colorado, United States, 80538 | |
United States, Iowa | |
Alcon Investigator 6183 | Recruiting |
Sioux City, Iowa, United States, 51104 | |
United States, Michigan | |
Alcon Investigator 7931 | Recruiting |
Fraser, Michigan, United States, 48026 | |
United States, Minnesota | |
Alcon Investigator 8210 | Recruiting |
Coon Rapids, Minnesota, United States, 55433 | |
United States, Missouri | |
Alcon Investigator 8208 | Recruiting |
Chesterfield, Missouri, United States, 63017 | |
United States, Nevada | |
Alcon Investigator 8209 | Recruiting |
Las Vegas, Nevada, United States, 89145 | |
United States, North Carolina | |
Alcon Investigator 8211 | Recruiting |
Southern Pines, North Carolina, United States, 28387 | |
United States, Ohio | |
Alcon Investigator 6725 | Recruiting |
Cincinnati, Ohio, United States, 45242 | |
United States, Texas | |
Alcon Investigator 5182 | Recruiting |
Austin, Texas, United States, 78731 | |
Alcon Investigator 5231 | Recruiting |
El Paso, Texas, United States, 79902 | |
Alcon Investigator 6185 | Recruiting |
Hurst, Texas, United States, 76054 | |
United States, Wisconsin | |
Alcon Investigator 5471 | Recruiting |
Kenosha, Wisconsin, United States, 53142 |
Study Director: | Clinical Project Lead, CDMA Surgical | Alcon Research |
Responsible Party: | Alcon Research |
ClinicalTrials.gov Identifier: | NCT04553523 |
Other Study ID Numbers: |
CP 18-001 GLI314-C003 ( Other Identifier: Alcon Research ) |
First Posted: | September 17, 2020 Key Record Dates |
Last Update Posted: | December 20, 2022 |
Last Verified: | December 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | Yes |
Product Manufactured in and Exported from the U.S.: | Yes |
Glaucoma, Open-Angle Glaucoma Ocular Hypertension Eye Diseases |