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Completed

NCT Number: NCT03861169

Study of OMNI System in OAG (GEMINI)

This study will prospectively assess the clinical effect of ab-interno transluminal viscoelastic delivery and trabeculotomy performed using the OMNI Surgical System in combination with Cataract Extraction on intraocular pressure (IOP) and the use of IOP-lowering medications in patients with mild-moderate open angle glaucoma (OAG).

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Key information

Age range

22 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Eye Center South, Dothan, Alabama, United States

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About this study

This prospective, multicenter, single-arm, post-market clinical study will evaluate the impact of ab-interno transluminal viscoelastic delivery and trabeculotomy using OMNI Surgical System in conjunction with cataract surgery on IOP and the use of hypotensive medications in patients with mild to moderate open angle glaucoma.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Only one eye of each subject was eligible (the "study eye"), and all ocular criteria listed below applied to the study eye.

  • Male or female subjects, 22 years or older
  • Visually significant cataract
  • Diagnosed with mild to moderate open-angle glaucoma (e.g., primary open-angle glaucoma, pigmentary glaucoma, pseudoexfoliative glaucoma) as documented in subjects' medical record per ICD-10 guidelines
  • At screening, a medicated IOP ≤ 33 mmHg and on 1-4 IOP-lowering medications1 with a stable medication regimen for two months prior to screening visit
  • At baseline, unmedicated diurnal IOP 21-36 mmHg and IOP at least 3 mmHg higher than screening IOP
  • Scheduled for cataract extraction followed by ab- interno transluminal viscoelastic delivery and trabeculotomy using the OMNI Surgical System
  • Shaffer grade of ≥ 3 in all four quadrants
  • Potential of good best corrected visual acuity post cataract extraction, in the Investigator's judgment
  • Able and willing to comply with the protocol, including all follow-up visits.
  • Understood and signed the informed consent

Exclusion criteria

All criteria listed below applied to the study eye; both eyes of a single subject need not have been eligible for the study.

  • Any of the following prior treatments for glaucoma:
  • Laser trabeculoplasty ≤ 3 months prior to baseline
  • Implanted with iStent, CyPass, Xen, Express, glaucoma draining device/valve, or Hydrus Device
  • Prior canaloplasty, goniotomy, trabeculotomy, trabeculectomy, ECP or CPC
  • Normal tension glaucoma
  • Acute angle closure, traumatic, congenital, malignant, uveitic or neovascular glaucoma
  • Severe glaucoma as documented in subjects' medical record per ICD-10 guidelines
  • Use of oral hypotensive medication treatment for glaucoma
  • In the Investigator's judgement, predisposed to significant risk because of washout of ocular hypotensive medications
  • Ocular pathology or medical condition which, in the Investigator's judgment, would either place the subject at increased risk of complications, contraindicate surgery, place the subject at risk of significant vision loss during the study period (e.g., wet AMD, corneal edema, Fuch's dystrophy, etc.), or interfere with compliance to elements of the study protocol (e.g., returning to Investigator's office for follow-up visits)
  • Participation (≤ 30 days prior to baseline) in an interventional trial which could have a potential effect on the study outcome, as determined by the study investigator
  • Women of childbearing potential if they are currently pregnant or intend to become pregnant during the study period; are breast-feeding; or are not in agreement to use adequate birth control methods to prevent pregnancy throughout the study

Treatment and study plan

Transluminal viscoelastic delivery and trabeculotomy

Device

Ab-interno transluminal viscoelastic delivery and trabeculotomy using OMNI Surgical System

Primary outcomes

  1. Change in Mean Unmedicated Diurnal IOP

    Time frame: 12 months

    Change in mean unmedicated diurnal IOP from baseline to 12 months

  2. Change in Mean Number of IOP-Lowering Medications

    Time frame: 12 months

    Reduction in mean number of IOP-lowering medications from screening to 12 months

Secondary outcomes

  1. Percent of Eyes With a ≥20% Reduction in Unmedicated DIOP

    Time frame: 12 months

    First Secondary Effectiveness endpoint/Percent of eyes with a ≥20% reduction in unmedicated DIOP at 12 months

  2. Percent of Eyes With Unmedicated Diurnal IOP Between 6 and 18 mmHg Inclusive at 12 Months

    Time frame: 12 months

    Second Secondary Effectiveness Endpoint: Unmedicated DIOP ≥ 6 mmHg and ≤ 18 mmHg at 12 Months/Percent of eyes with unmedicated DIOP between 6 and 18 mmHg inclusive at 12 months

Sponsors and collaborators

Lead sponsor

Sight Sciences, Inc.

Industry

Registry information

Official study title

Prospective, Multi-Center, Single-Arm Post-Market Study of Use of the OMNI® Surgical System in Combination With Cataract Extraction in Open Angle Glaucoma

Important dates

Study start
2019
Primary completion
2021
Study completion
2021
First posted
Mar 4, 2019
Registry last updated
Aug 14, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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